2017-07-21 05:03:36 +08:00
|
|
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
|
|
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=AVX --check-prefix=AVX1
|
2017-12-20 21:12:34 +08:00
|
|
|
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefix=AVX --check-prefix=AVX2 --check-prefix=AVX2-SLOW
|
|
|
|
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2,+fast-variable-shuffle | FileCheck %s --check-prefix=AVX --check-prefix=AVX2 --check-prefix=AVX2-FAST
|
2017-07-21 05:03:36 +08:00
|
|
|
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512f | FileCheck %s --check-prefix=AVX512 --check-prefix=AVX512F
|
2018-01-10 00:26:06 +08:00
|
|
|
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512vl,+fast-variable-shuffle | FileCheck %s --check-prefixes=AVX512,AVX512VL
|
|
|
|
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bw,+fast-variable-shuffle | FileCheck %s --check-prefixes=AVX512,AVX512BW
|
|
|
|
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bw,+avx512vl,+fast-variable-shuffle | FileCheck %s --check-prefixes=AVX512,AVX512BWVL
|
2017-07-21 05:03:36 +08:00
|
|
|
|
|
|
|
define void @shuffle_v32i8_to_v16i8_1(<32 x i8>* %L, <16 x i8>* %S) nounwind {
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX-LABEL: shuffle_v32i8_to_v16i8_1:
|
|
|
|
; AVX: # %bb.0:
|
|
|
|
; AVX-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX-NEXT: vmovdqa 16(%rdi), %xmm1
|
|
|
|
; AVX-NEXT: vmovdqa {{.*#+}} xmm2 = <1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX-NEXT: vmovdqa %xmm0, (%rsi)
|
|
|
|
; AVX-NEXT: retq
|
2017-07-21 05:03:36 +08:00
|
|
|
;
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512-LABEL: shuffle_v32i8_to_v16i8_1:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512-NEXT: vmovdqa {{.*#+}} xmm2 = <1,3,5,7,9,11,13,15,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512-NEXT: vmovdqa %xmm0, (%rsi)
|
|
|
|
; AVX512-NEXT: retq
|
2017-07-21 05:03:36 +08:00
|
|
|
%vec = load <32 x i8>, <32 x i8>* %L
|
|
|
|
%strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <16 x i32> <i32 1, i32 3, i32 5, i32 7, i32 9, i32 11, i32 13, i32 15, i32 17, i32 19, i32 21, i32 23, i32 25, i32 27, i32 29, i32 31>
|
|
|
|
store <16 x i8> %strided.vec, <16 x i8>* %S
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
define void @shuffle_v16i16_to_v8i16_1(<16 x i16>* %L, <8 x i16>* %S) nounwind {
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX-LABEL: shuffle_v16i16_to_v8i16_1:
|
|
|
|
; AVX: # %bb.0:
|
|
|
|
; AVX-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX-NEXT: vmovdqa 16(%rdi), %xmm1
|
|
|
|
; AVX-NEXT: vmovdqa {{.*#+}} xmm2 = [2,3,6,7,10,11,14,15,14,15,10,11,12,13,14,15]
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX-NEXT: vmovdqa %xmm0, (%rsi)
|
|
|
|
; AVX-NEXT: retq
|
2017-07-21 05:03:36 +08:00
|
|
|
;
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512-LABEL: shuffle_v16i16_to_v8i16_1:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512-NEXT: vmovdqa {{.*#+}} xmm2 = [2,3,6,7,10,11,14,15,14,15,10,11,12,13,14,15]
|
|
|
|
; AVX512-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512-NEXT: vmovdqa %xmm0, (%rsi)
|
|
|
|
; AVX512-NEXT: retq
|
2017-07-21 05:03:36 +08:00
|
|
|
%vec = load <16 x i16>, <16 x i16>* %L
|
|
|
|
%strided.vec = shufflevector <16 x i16> %vec, <16 x i16> undef, <8 x i32> <i32 1, i32 3, i32 5, i32 7, i32 9, i32 11, i32 13, i32 15>
|
|
|
|
store <8 x i16> %strided.vec, <8 x i16>* %S
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
define void @shuffle_v8i32_to_v4i32_1(<8 x i32>* %L, <4 x i32>* %S) nounwind {
|
|
|
|
; AVX-LABEL: shuffle_v8i32_to_v4i32_1:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX-NEXT: vmovaps (%rdi), %xmm0
|
|
|
|
; AVX-NEXT: vshufps {{.*#+}} xmm0 = xmm0[1,3],mem[1,3]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX-NEXT: vmovaps %xmm0, (%rsi)
|
|
|
|
; AVX-NEXT: retq
|
|
|
|
;
|
2017-08-01 06:07:29 +08:00
|
|
|
; AVX512-LABEL: shuffle_v8i32_to_v4i32_1:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512-NEXT: vmovaps (%rdi), %xmm0
|
|
|
|
; AVX512-NEXT: vshufps {{.*#+}} xmm0 = xmm0[1,3],mem[1,3]
|
2017-08-01 06:07:29 +08:00
|
|
|
; AVX512-NEXT: vmovaps %xmm0, (%rsi)
|
|
|
|
; AVX512-NEXT: retq
|
2017-07-21 05:03:36 +08:00
|
|
|
%vec = load <8 x i32>, <8 x i32>* %L
|
|
|
|
%strided.vec = shufflevector <8 x i32> %vec, <8 x i32> undef, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
|
|
|
|
store <4 x i32> %strided.vec, <4 x i32>* %S
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
define void @shuffle_v32i8_to_v8i8_1(<32 x i8>* %L, <8 x i8>* %S) nounwind {
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX-LABEL: shuffle_v32i8_to_v8i8_1:
|
|
|
|
; AVX: # %bb.0:
|
|
|
|
; AVX-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX-NEXT: vmovdqa 16(%rdi), %xmm1
|
|
|
|
; AVX-NEXT: vmovdqa {{.*#+}} xmm2 = <1,5,9,13,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
|
|
|
|
; AVX-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX-NEXT: retq
|
2017-07-21 05:03:36 +08:00
|
|
|
;
|
|
|
|
; AVX512F-LABEL: shuffle_v32i8_to_v8i8_1:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512F: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512F-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa {{.*#+}} xmm2 = <1,5,9,13,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512F-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512F-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX512F-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512VL-LABEL: shuffle_v32i8_to_v8i8_1:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512VL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512VL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa {{.*#+}} xmm2 = <1,5,9,13,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512VL-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
|
|
|
|
; AVX512VL-NEXT: vmovq %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512VL-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BW-LABEL: shuffle_v32i8_to_v8i8_1:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BW: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BW-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa {{.*#+}} xmm2 = <1,5,9,13,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512BW-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BW-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX512BW-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BWVL-LABEL: shuffle_v32i8_to_v8i8_1:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BWVL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BWVL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa {{.*#+}} xmm2 = [1,1,5,5,9,9,13,13,13,13,5,5,12,12,13,13]
|
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512BWVL-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512BWVL-NEXT: vpmovwb %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BWVL-NEXT: retq
|
|
|
|
%vec = load <32 x i8>, <32 x i8>* %L
|
|
|
|
%strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <8 x i32> <i32 1, i32 5, i32 9, i32 13, i32 17, i32 21, i32 25, i32 29>
|
|
|
|
store <8 x i8> %strided.vec, <8 x i8>* %S
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
define void @shuffle_v32i8_to_v8i8_2(<32 x i8>* %L, <8 x i8>* %S) nounwind {
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX-LABEL: shuffle_v32i8_to_v8i8_2:
|
|
|
|
; AVX: # %bb.0:
|
|
|
|
; AVX-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX-NEXT: vmovdqa 16(%rdi), %xmm1
|
|
|
|
; AVX-NEXT: vmovdqa {{.*#+}} xmm2 = <2,6,10,14,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
|
|
|
|
; AVX-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX-NEXT: retq
|
2017-07-21 05:03:36 +08:00
|
|
|
;
|
|
|
|
; AVX512F-LABEL: shuffle_v32i8_to_v8i8_2:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512F: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512F-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa {{.*#+}} xmm2 = <2,6,10,14,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512F-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512F-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX512F-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512VL-LABEL: shuffle_v32i8_to_v8i8_2:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512VL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512VL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa {{.*#+}} xmm2 = <2,6,10,14,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512VL-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
|
|
|
|
; AVX512VL-NEXT: vmovq %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512VL-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BW-LABEL: shuffle_v32i8_to_v8i8_2:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BW: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BW-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa {{.*#+}} xmm2 = <2,6,10,14,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512BW-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BW-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX512BW-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BWVL-LABEL: shuffle_v32i8_to_v8i8_2:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BWVL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BWVL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa {{.*#+}} xmm2 = [2,3,6,7,10,11,14,15,14,15,10,11,12,13,14,15]
|
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512BWVL-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512BWVL-NEXT: vpmovwb %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BWVL-NEXT: retq
|
|
|
|
%vec = load <32 x i8>, <32 x i8>* %L
|
|
|
|
%strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <8 x i32> <i32 2, i32 6, i32 10, i32 14, i32 18, i32 22, i32 26, i32 30>
|
|
|
|
store <8 x i8> %strided.vec, <8 x i8>* %S
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
define void @shuffle_v32i8_to_v8i8_3(<32 x i8>* %L, <8 x i8>* %S) nounwind {
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX-LABEL: shuffle_v32i8_to_v8i8_3:
|
|
|
|
; AVX: # %bb.0:
|
|
|
|
; AVX-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX-NEXT: vmovdqa 16(%rdi), %xmm1
|
|
|
|
; AVX-NEXT: vmovdqa {{.*#+}} xmm2 = <3,7,11,15,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
|
|
|
|
; AVX-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX-NEXT: retq
|
2017-07-21 05:03:36 +08:00
|
|
|
;
|
|
|
|
; AVX512F-LABEL: shuffle_v32i8_to_v8i8_3:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512F: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512F-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa {{.*#+}} xmm2 = <3,7,11,15,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512F-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512F-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX512F-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512VL-LABEL: shuffle_v32i8_to_v8i8_3:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512VL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512VL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa {{.*#+}} xmm2 = <3,7,11,15,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512VL-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
|
|
|
|
; AVX512VL-NEXT: vmovq %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512VL-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BW-LABEL: shuffle_v32i8_to_v8i8_3:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BW: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BW-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa {{.*#+}} xmm2 = <3,7,11,15,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512BW-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BW-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX512BW-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BWVL-LABEL: shuffle_v32i8_to_v8i8_3:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BWVL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BWVL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa {{.*#+}} xmm2 = [3,3,7,7,11,11,15,15,7,7,15,15,6,6,7,7]
|
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512BWVL-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512BWVL-NEXT: vpmovwb %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BWVL-NEXT: retq
|
|
|
|
%vec = load <32 x i8>, <32 x i8>* %L
|
|
|
|
%strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <8 x i32> <i32 3, i32 7, i32 11, i32 15, i32 19, i32 23, i32 27, i32 31>
|
|
|
|
store <8 x i8> %strided.vec, <8 x i8>* %S
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
define void @shuffle_v16i16_to_v4i16_1(<16 x i16>* %L, <4 x i16>* %S) nounwind {
|
|
|
|
; AVX1-LABEL: shuffle_v16i16_to_v4i16_1:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX1: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX1-NEXT: vpshufd {{.*#+}} xmm0 = mem[0,2,2,3]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX1-NEXT: vpshuflw {{.*#+}} xmm0 = xmm0[1,3,2,3,4,5,6,7]
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX1-NEXT: vpshufd {{.*#+}} xmm1 = mem[0,2,2,3]
|
|
|
|
; AVX1-NEXT: vpshuflw {{.*#+}} xmm1 = xmm1[1,3,2,3,4,5,6,7]
|
|
|
|
; AVX1-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX1-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX1-NEXT: retq
|
|
|
|
;
|
2017-12-20 21:12:34 +08:00
|
|
|
; AVX2-SLOW-LABEL: shuffle_v16i16_to_v4i16_1:
|
|
|
|
; AVX2-SLOW: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX2-SLOW-NEXT: vpshufd {{.*#+}} xmm0 = mem[0,2,2,3]
|
2017-12-20 21:12:34 +08:00
|
|
|
; AVX2-SLOW-NEXT: vpshuflw {{.*#+}} xmm0 = xmm0[1,3,2,3,4,5,6,7]
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX2-SLOW-NEXT: vpshufd {{.*#+}} xmm1 = mem[0,2,2,3]
|
|
|
|
; AVX2-SLOW-NEXT: vpshuflw {{.*#+}} xmm1 = xmm1[1,3,2,3,4,5,6,7]
|
|
|
|
; AVX2-SLOW-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
|
2017-12-20 21:12:34 +08:00
|
|
|
; AVX2-SLOW-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX2-SLOW-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX2-FAST-LABEL: shuffle_v16i16_to_v4i16_1:
|
|
|
|
; AVX2-FAST: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX2-FAST-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX2-FAST-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-12-20 21:12:34 +08:00
|
|
|
; AVX2-FAST-NEXT: vmovdqa {{.*#+}} xmm2 = [2,3,10,11,8,9,10,11,8,9,10,11,12,13,14,15]
|
|
|
|
; AVX2-FAST-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX2-FAST-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX2-FAST-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
|
|
|
|
; AVX2-FAST-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX2-FAST-NEXT: retq
|
2017-07-21 05:03:36 +08:00
|
|
|
;
|
|
|
|
; AVX512F-LABEL: shuffle_v16i16_to_v4i16_1:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512F: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512F-NEXT: vpshufd {{.*#+}} xmm0 = mem[0,2,2,3]
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512F-NEXT: vpshuflw {{.*#+}} xmm0 = xmm0[1,3,2,3,4,5,6,7]
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512F-NEXT: vpshufd {{.*#+}} xmm1 = mem[0,2,2,3]
|
|
|
|
; AVX512F-NEXT: vpshuflw {{.*#+}} xmm1 = xmm1[1,3,2,3,4,5,6,7]
|
|
|
|
; AVX512F-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512F-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX512F-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512VL-LABEL: shuffle_v16i16_to_v4i16_1:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512VL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512VL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2018-01-10 00:26:06 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa {{.*#+}} xmm2 = [2,3,2,3,10,11,10,11,8,9,10,11,12,13,14,15]
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512VL-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512VL-NEXT: vpmovdw %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512VL-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BW-LABEL: shuffle_v16i16_to_v4i16_1:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BW: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BW-NEXT: vmovdqa 16(%rdi), %xmm1
|
2018-01-10 00:26:06 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa {{.*#+}} xmm2 = [2,3,10,11,8,9,10,11,8,9,10,11,12,13,14,15]
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BW-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BW-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX512BW-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BWVL-LABEL: shuffle_v16i16_to_v4i16_1:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BWVL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BWVL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2018-01-10 00:26:06 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa {{.*#+}} xmm2 = [2,3,2,3,10,11,10,11,8,9,10,11,12,13,14,15]
|
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BWVL-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512BWVL-NEXT: vpmovdw %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BWVL-NEXT: retq
|
|
|
|
%vec = load <16 x i16>, <16 x i16>* %L
|
|
|
|
%strided.vec = shufflevector <16 x i16> %vec, <16 x i16> undef, <4 x i32> <i32 1, i32 5, i32 9, i32 13>
|
|
|
|
store <4 x i16> %strided.vec, <4 x i16>* %S
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
define void @shuffle_v16i16_to_v4i16_2(<16 x i16>* %L, <4 x i16>* %S) nounwind {
|
|
|
|
; AVX1-LABEL: shuffle_v16i16_to_v4i16_2:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX1: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX1-NEXT: vpshufd {{.*#+}} xmm0 = mem[3,1,2,3]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX1-NEXT: vpshuflw {{.*#+}} xmm0 = xmm0[2,0,2,3,4,5,6,7]
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX1-NEXT: vpshufd {{.*#+}} xmm1 = mem[3,1,2,3]
|
|
|
|
; AVX1-NEXT: vpshuflw {{.*#+}} xmm1 = xmm1[2,0,2,3,4,5,6,7]
|
|
|
|
; AVX1-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX1-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX1-NEXT: retq
|
|
|
|
;
|
2017-12-20 21:12:34 +08:00
|
|
|
; AVX2-SLOW-LABEL: shuffle_v16i16_to_v4i16_2:
|
|
|
|
; AVX2-SLOW: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX2-SLOW-NEXT: vpshufd {{.*#+}} xmm0 = mem[3,1,2,3]
|
2017-12-20 21:12:34 +08:00
|
|
|
; AVX2-SLOW-NEXT: vpshuflw {{.*#+}} xmm0 = xmm0[2,0,2,3,4,5,6,7]
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX2-SLOW-NEXT: vpshufd {{.*#+}} xmm1 = mem[3,1,2,3]
|
|
|
|
; AVX2-SLOW-NEXT: vpshuflw {{.*#+}} xmm1 = xmm1[2,0,2,3,4,5,6,7]
|
|
|
|
; AVX2-SLOW-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
|
2017-12-20 21:12:34 +08:00
|
|
|
; AVX2-SLOW-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX2-SLOW-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX2-FAST-LABEL: shuffle_v16i16_to_v4i16_2:
|
|
|
|
; AVX2-FAST: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX2-FAST-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX2-FAST-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-12-20 21:12:34 +08:00
|
|
|
; AVX2-FAST-NEXT: vmovdqa {{.*#+}} xmm2 = [4,5,12,13,4,5,6,7,8,9,10,11,12,13,14,15]
|
|
|
|
; AVX2-FAST-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX2-FAST-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX2-FAST-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
|
|
|
|
; AVX2-FAST-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX2-FAST-NEXT: retq
|
2017-07-21 05:03:36 +08:00
|
|
|
;
|
|
|
|
; AVX512F-LABEL: shuffle_v16i16_to_v4i16_2:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512F: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512F-NEXT: vpshufd {{.*#+}} xmm0 = mem[3,1,2,3]
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512F-NEXT: vpshuflw {{.*#+}} xmm0 = xmm0[2,0,2,3,4,5,6,7]
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512F-NEXT: vpshufd {{.*#+}} xmm1 = mem[3,1,2,3]
|
|
|
|
; AVX512F-NEXT: vpshuflw {{.*#+}} xmm1 = xmm1[2,0,2,3,4,5,6,7]
|
|
|
|
; AVX512F-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512F-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX512F-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512VL-LABEL: shuffle_v16i16_to_v4i16_2:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512VL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512VL-NEXT: vmovaps (%rdi), %xmm0
|
|
|
|
; AVX512VL-NEXT: vshufps {{.*#+}} xmm0 = xmm0[1,3],mem[1,3]
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512VL-NEXT: vpmovdw %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512VL-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BW-LABEL: shuffle_v16i16_to_v4i16_2:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BW: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BW-NEXT: vmovdqa 16(%rdi), %xmm1
|
2018-01-10 00:26:06 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa {{.*#+}} xmm2 = [4,5,12,13,4,5,6,7,8,9,10,11,12,13,14,15]
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BW-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BW-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX512BW-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BWVL-LABEL: shuffle_v16i16_to_v4i16_2:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BWVL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovaps (%rdi), %xmm0
|
|
|
|
; AVX512BWVL-NEXT: vshufps {{.*#+}} xmm0 = xmm0[1,3],mem[1,3]
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BWVL-NEXT: vpmovdw %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BWVL-NEXT: retq
|
|
|
|
%vec = load <16 x i16>, <16 x i16>* %L
|
|
|
|
%strided.vec = shufflevector <16 x i16> %vec, <16 x i16> undef, <4 x i32> <i32 2, i32 6, i32 10, i32 14>
|
|
|
|
store <4 x i16> %strided.vec, <4 x i16>* %S
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
define void @shuffle_v16i16_to_v4i16_3(<16 x i16>* %L, <4 x i16>* %S) nounwind {
|
|
|
|
; AVX1-LABEL: shuffle_v16i16_to_v4i16_3:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX1: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX1-NEXT: vpshufd {{.*#+}} xmm0 = mem[3,1,2,3]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX1-NEXT: vpshuflw {{.*#+}} xmm0 = xmm0[3,1,2,3,4,5,6,7]
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX1-NEXT: vpshufd {{.*#+}} xmm1 = mem[3,1,2,3]
|
|
|
|
; AVX1-NEXT: vpshuflw {{.*#+}} xmm1 = xmm1[3,1,2,3,4,5,6,7]
|
|
|
|
; AVX1-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX1-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX1-NEXT: retq
|
|
|
|
;
|
2017-12-20 21:12:34 +08:00
|
|
|
; AVX2-SLOW-LABEL: shuffle_v16i16_to_v4i16_3:
|
|
|
|
; AVX2-SLOW: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX2-SLOW-NEXT: vpshufd {{.*#+}} xmm0 = mem[3,1,2,3]
|
2017-12-20 21:12:34 +08:00
|
|
|
; AVX2-SLOW-NEXT: vpshuflw {{.*#+}} xmm0 = xmm0[3,1,2,3,4,5,6,7]
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX2-SLOW-NEXT: vpshufd {{.*#+}} xmm1 = mem[3,1,2,3]
|
|
|
|
; AVX2-SLOW-NEXT: vpshuflw {{.*#+}} xmm1 = xmm1[3,1,2,3,4,5,6,7]
|
|
|
|
; AVX2-SLOW-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
|
2017-12-20 21:12:34 +08:00
|
|
|
; AVX2-SLOW-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX2-SLOW-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX2-FAST-LABEL: shuffle_v16i16_to_v4i16_3:
|
|
|
|
; AVX2-FAST: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX2-FAST-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX2-FAST-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-12-20 21:12:34 +08:00
|
|
|
; AVX2-FAST-NEXT: vmovdqa {{.*#+}} xmm2 = [6,7,14,15,4,5,6,7,8,9,10,11,12,13,14,15]
|
|
|
|
; AVX2-FAST-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX2-FAST-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX2-FAST-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
|
|
|
|
; AVX2-FAST-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX2-FAST-NEXT: retq
|
2017-07-21 05:03:36 +08:00
|
|
|
;
|
|
|
|
; AVX512F-LABEL: shuffle_v16i16_to_v4i16_3:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512F: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512F-NEXT: vpshufd {{.*#+}} xmm0 = mem[3,1,2,3]
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512F-NEXT: vpshuflw {{.*#+}} xmm0 = xmm0[3,1,2,3,4,5,6,7]
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512F-NEXT: vpshufd {{.*#+}} xmm1 = mem[3,1,2,3]
|
|
|
|
; AVX512F-NEXT: vpshuflw {{.*#+}} xmm1 = xmm1[3,1,2,3,4,5,6,7]
|
|
|
|
; AVX512F-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512F-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX512F-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512VL-LABEL: shuffle_v16i16_to_v4i16_3:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512VL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512VL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2018-01-10 00:26:06 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa {{.*#+}} xmm2 = [6,7,14,15,14,15,6,7,8,9,10,11,12,13,14,15]
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512VL-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512VL-NEXT: vpmovdw %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512VL-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BW-LABEL: shuffle_v16i16_to_v4i16_3:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BW: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BW-NEXT: vmovdqa 16(%rdi), %xmm1
|
2018-01-10 00:26:06 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa {{.*#+}} xmm2 = [6,7,14,15,4,5,6,7,8,9,10,11,12,13,14,15]
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BW-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BW-NEXT: vmovq %xmm0, (%rsi)
|
|
|
|
; AVX512BW-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BWVL-LABEL: shuffle_v16i16_to_v4i16_3:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BWVL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BWVL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2018-01-10 00:26:06 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa {{.*#+}} xmm2 = [6,7,14,15,14,15,6,7,8,9,10,11,12,13,14,15]
|
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BWVL-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512BWVL-NEXT: vpmovdw %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BWVL-NEXT: retq
|
|
|
|
%vec = load <16 x i16>, <16 x i16>* %L
|
|
|
|
%strided.vec = shufflevector <16 x i16> %vec, <16 x i16> undef, <4 x i32> <i32 3, i32 7, i32 11, i32 15>
|
|
|
|
store <4 x i16> %strided.vec, <4 x i16>* %S
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
define void @shuffle_v32i8_to_v4i8_1(<32 x i8>* %L, <4 x i8>* %S) nounwind {
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX-LABEL: shuffle_v32i8_to_v4i8_1:
|
|
|
|
; AVX: # %bb.0:
|
|
|
|
; AVX-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX-NEXT: vmovdqa 16(%rdi), %xmm1
|
|
|
|
; AVX-NEXT: vmovdqa {{.*#+}} xmm2 = <1,9,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
|
|
|
; AVX-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX-NEXT: retq
|
2017-07-21 05:03:36 +08:00
|
|
|
;
|
|
|
|
; AVX512F-LABEL: shuffle_v32i8_to_v4i8_1:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512F: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512F-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa {{.*#+}} xmm2 = <1,9,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512F-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512F-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX512F-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512VL-LABEL: shuffle_v32i8_to_v4i8_1:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512VL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512VL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-12-20 00:54:07 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa {{.*#+}} xmm2 = [1,1,255,255,9,9,255,255,9,9,255,255,11,11,255,255]
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512VL-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512VL-NEXT: vpmovdb %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512VL-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BW-LABEL: shuffle_v32i8_to_v4i8_1:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BW: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BW-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa {{.*#+}} xmm2 = <1,9,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512BW-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BW-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX512BW-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BWVL-LABEL: shuffle_v32i8_to_v4i8_1:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BWVL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BWVL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-12-20 00:54:07 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa {{.*#+}} xmm2 = [1,1,255,255,9,9,255,255,9,9,255,255,11,11,255,255]
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512BWVL-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512BWVL-NEXT: vpmovdb %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BWVL-NEXT: retq
|
|
|
|
%vec = load <32 x i8>, <32 x i8>* %L
|
|
|
|
%strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <4 x i32> <i32 1, i32 9, i32 17, i32 25>
|
|
|
|
store <4 x i8> %strided.vec, <4 x i8>* %S
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
define void @shuffle_v32i8_to_v4i8_2(<32 x i8>* %L, <4 x i8>* %S) nounwind {
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX-LABEL: shuffle_v32i8_to_v4i8_2:
|
|
|
|
; AVX: # %bb.0:
|
|
|
|
; AVX-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX-NEXT: vmovdqa 16(%rdi), %xmm1
|
|
|
|
; AVX-NEXT: vmovdqa {{.*#+}} xmm2 = <2,10,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
|
|
|
; AVX-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX-NEXT: retq
|
2017-07-21 05:03:36 +08:00
|
|
|
;
|
|
|
|
; AVX512F-LABEL: shuffle_v32i8_to_v4i8_2:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512F: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512F-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa {{.*#+}} xmm2 = <2,10,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512F-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512F-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX512F-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512VL-LABEL: shuffle_v32i8_to_v4i8_2:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512VL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512VL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2018-01-10 00:26:06 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa {{.*#+}} xmm2 = [2,3,2,3,10,11,10,11,8,9,10,11,12,13,14,15]
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512VL-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512VL-NEXT: vpmovdb %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512VL-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BW-LABEL: shuffle_v32i8_to_v4i8_2:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BW: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BW-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa {{.*#+}} xmm2 = <2,10,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512BW-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BW-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX512BW-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BWVL-LABEL: shuffle_v32i8_to_v4i8_2:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BWVL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BWVL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2018-01-10 00:26:06 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa {{.*#+}} xmm2 = [2,3,2,3,10,11,10,11,8,9,10,11,12,13,14,15]
|
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BWVL-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512BWVL-NEXT: vpmovdb %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BWVL-NEXT: retq
|
|
|
|
%vec = load <32 x i8>, <32 x i8>* %L
|
|
|
|
%strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <4 x i32> <i32 2, i32 10, i32 18, i32 26>
|
|
|
|
store <4 x i8> %strided.vec, <4 x i8>* %S
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
define void @shuffle_v32i8_to_v4i8_3(<32 x i8>* %L, <4 x i8>* %S) nounwind {
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX-LABEL: shuffle_v32i8_to_v4i8_3:
|
|
|
|
; AVX: # %bb.0:
|
|
|
|
; AVX-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX-NEXT: vmovdqa 16(%rdi), %xmm1
|
|
|
|
; AVX-NEXT: vmovdqa {{.*#+}} xmm2 = <3,11,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
|
|
|
; AVX-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX-NEXT: retq
|
2017-07-21 05:03:36 +08:00
|
|
|
;
|
|
|
|
; AVX512F-LABEL: shuffle_v32i8_to_v4i8_3:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512F: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512F-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa {{.*#+}} xmm2 = <3,11,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512F-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512F-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX512F-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512VL-LABEL: shuffle_v32i8_to_v4i8_3:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512VL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512VL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-12-20 00:54:07 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa {{.*#+}} xmm2 = [3,3,11,11,11,11,3,3,8,8,9,9,10,10,11,11]
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512VL-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512VL-NEXT: vpmovdb %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512VL-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BW-LABEL: shuffle_v32i8_to_v4i8_3:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BW: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BW-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa {{.*#+}} xmm2 = <3,11,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512BW-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BW-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX512BW-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BWVL-LABEL: shuffle_v32i8_to_v4i8_3:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BWVL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BWVL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-12-20 00:54:07 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa {{.*#+}} xmm2 = [3,3,11,11,11,11,3,3,8,8,9,9,10,10,11,11]
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512BWVL-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512BWVL-NEXT: vpmovdb %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BWVL-NEXT: retq
|
|
|
|
%vec = load <32 x i8>, <32 x i8>* %L
|
|
|
|
%strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <4 x i32> <i32 3, i32 11, i32 19, i32 27>
|
|
|
|
store <4 x i8> %strided.vec, <4 x i8>* %S
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
define void @shuffle_v32i8_to_v4i8_4(<32 x i8>* %L, <4 x i8>* %S) nounwind {
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX-LABEL: shuffle_v32i8_to_v4i8_4:
|
|
|
|
; AVX: # %bb.0:
|
|
|
|
; AVX-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX-NEXT: vmovdqa 16(%rdi), %xmm1
|
|
|
|
; AVX-NEXT: vmovdqa {{.*#+}} xmm2 = <4,12,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
|
|
|
; AVX-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX-NEXT: retq
|
2017-07-21 05:03:36 +08:00
|
|
|
;
|
|
|
|
; AVX512F-LABEL: shuffle_v32i8_to_v4i8_4:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512F: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512F-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa {{.*#+}} xmm2 = <4,12,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512F-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512F-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX512F-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512VL-LABEL: shuffle_v32i8_to_v4i8_4:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512VL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512VL-NEXT: vmovaps (%rdi), %xmm0
|
|
|
|
; AVX512VL-NEXT: vshufps {{.*#+}} xmm0 = xmm0[1,3],mem[1,3]
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512VL-NEXT: vpmovdb %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512VL-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BW-LABEL: shuffle_v32i8_to_v4i8_4:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BW: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BW-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa {{.*#+}} xmm2 = <4,12,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512BW-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BW-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX512BW-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BWVL-LABEL: shuffle_v32i8_to_v4i8_4:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BWVL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovaps (%rdi), %xmm0
|
|
|
|
; AVX512BWVL-NEXT: vshufps {{.*#+}} xmm0 = xmm0[1,3],mem[1,3]
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BWVL-NEXT: vpmovdb %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BWVL-NEXT: retq
|
|
|
|
%vec = load <32 x i8>, <32 x i8>* %L
|
|
|
|
%strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <4 x i32> <i32 4, i32 12, i32 20, i32 28>
|
|
|
|
store <4 x i8> %strided.vec, <4 x i8>* %S
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
define void @shuffle_v32i8_to_v4i8_5(<32 x i8>* %L, <4 x i8>* %S) nounwind {
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX-LABEL: shuffle_v32i8_to_v4i8_5:
|
|
|
|
; AVX: # %bb.0:
|
|
|
|
; AVX-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX-NEXT: vmovdqa 16(%rdi), %xmm1
|
|
|
|
; AVX-NEXT: vmovdqa {{.*#+}} xmm2 = <5,13,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
|
|
|
; AVX-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX-NEXT: retq
|
2017-07-21 05:03:36 +08:00
|
|
|
;
|
|
|
|
; AVX512F-LABEL: shuffle_v32i8_to_v4i8_5:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512F: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512F-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa {{.*#+}} xmm2 = <5,13,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512F-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512F-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX512F-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512VL-LABEL: shuffle_v32i8_to_v4i8_5:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512VL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512VL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-12-20 00:54:07 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa {{.*#+}} xmm2 = [5,5,13,13,13,13,5,5,4,4,5,5,6,6,7,7]
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512VL-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512VL-NEXT: vpmovdb %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512VL-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BW-LABEL: shuffle_v32i8_to_v4i8_5:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BW: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BW-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa {{.*#+}} xmm2 = <5,13,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512BW-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BW-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX512BW-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BWVL-LABEL: shuffle_v32i8_to_v4i8_5:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BWVL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BWVL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-12-20 00:54:07 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa {{.*#+}} xmm2 = [5,5,13,13,13,13,5,5,4,4,5,5,6,6,7,7]
|
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BWVL-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512BWVL-NEXT: vpmovdb %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BWVL-NEXT: retq
|
|
|
|
%vec = load <32 x i8>, <32 x i8>* %L
|
|
|
|
%strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <4 x i32> <i32 5, i32 13, i32 21, i32 29>
|
|
|
|
store <4 x i8> %strided.vec, <4 x i8>* %S
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
define void @shuffle_v32i8_to_v4i8_6(<32 x i8>* %L, <4 x i8>* %S) nounwind {
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX-LABEL: shuffle_v32i8_to_v4i8_6:
|
|
|
|
; AVX: # %bb.0:
|
|
|
|
; AVX-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX-NEXT: vmovdqa 16(%rdi), %xmm1
|
|
|
|
; AVX-NEXT: vmovdqa {{.*#+}} xmm2 = <6,14,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
|
|
|
; AVX-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX-NEXT: retq
|
2017-07-21 05:03:36 +08:00
|
|
|
;
|
|
|
|
; AVX512F-LABEL: shuffle_v32i8_to_v4i8_6:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512F: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512F-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa {{.*#+}} xmm2 = <6,14,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512F-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512F-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX512F-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512VL-LABEL: shuffle_v32i8_to_v4i8_6:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512VL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512VL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2018-01-10 00:26:06 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa {{.*#+}} xmm2 = [6,7,14,15,14,15,6,7,8,9,10,11,12,13,14,15]
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512VL-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512VL-NEXT: vpmovdb %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512VL-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BW-LABEL: shuffle_v32i8_to_v4i8_6:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BW: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BW-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa {{.*#+}} xmm2 = <6,14,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512BW-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BW-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX512BW-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BWVL-LABEL: shuffle_v32i8_to_v4i8_6:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BWVL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BWVL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2018-01-10 00:26:06 +08:00
|
|
|
; AVX512BWVL-NEXT: vmovdqa {{.*#+}} xmm2 = [6,7,14,15,14,15,6,7,8,9,10,11,12,13,14,15]
|
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BWVL-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512BWVL-NEXT: vpmovdb %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BWVL-NEXT: retq
|
|
|
|
%vec = load <32 x i8>, <32 x i8>* %L
|
|
|
|
%strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <4 x i32> <i32 6, i32 14, i32 22, i32 30>
|
|
|
|
store <4 x i8> %strided.vec, <4 x i8>* %S
|
|
|
|
ret void
|
|
|
|
}
|
|
|
|
|
|
|
|
define void @shuffle_v32i8_to_v4i8_7(<32 x i8>* %L, <4 x i8>* %S) nounwind {
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX-LABEL: shuffle_v32i8_to_v4i8_7:
|
|
|
|
; AVX: # %bb.0:
|
|
|
|
; AVX-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX-NEXT: vmovdqa 16(%rdi), %xmm1
|
|
|
|
; AVX-NEXT: vmovdqa {{.*#+}} xmm2 = <7,15,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
|
|
|
; AVX-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX-NEXT: retq
|
2017-07-21 05:03:36 +08:00
|
|
|
;
|
|
|
|
; AVX512F-LABEL: shuffle_v32i8_to_v4i8_7:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512F: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512F-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512F-NEXT: vmovdqa {{.*#+}} xmm2 = <7,15,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512F-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512F-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512F-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX512F-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512VL-LABEL: shuffle_v32i8_to_v4i8_7:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512VL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512VL-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512VL-NEXT: vmovdqa {{.*#+}} xmm2 = [7,7,14,14,15,15,14,14,15,15,4,4,5,5,6,6]
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512VL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512VL-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
|
|
|
|
; AVX512VL-NEXT: vpmovdb %xmm0, (%rsi)
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512VL-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BW-LABEL: shuffle_v32i8_to_v4i8_7:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BW: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa (%rdi), %xmm0
|
|
|
|
; AVX512BW-NEXT: vmovdqa 16(%rdi), %xmm1
|
2017-10-12 08:24:52 +08:00
|
|
|
; AVX512BW-NEXT: vmovdqa {{.*#+}} xmm2 = <7,15,u,u,u,u,u,u,u,u,u,u,u,u,u,u>
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm1, %xmm1
|
|
|
|
; AVX512BW-NEXT: vpshufb %xmm2, %xmm0, %xmm0
|
|
|
|
; AVX512BW-NEXT: vpunpcklwd {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1],xmm0[2],xmm1[2],xmm0[3],xmm1[3]
|
2017-07-21 05:03:36 +08:00
|
|
|
; AVX512BW-NEXT: vmovd %xmm0, (%rsi)
|
|
|
|
; AVX512BW-NEXT: retq
|
|
|
|
;
|
|
|
|
; AVX512BWVL-LABEL: shuffle_v32i8_to_v4i8_7:
|
2017-12-05 01:18:51 +08:00
|
|
|
; AVX512BWVL: # %bb.0:
|
[x86] allow vector load narrowing with multi-use values
This is a long-awaited follow-up suggested in D33578. Since then, we've picked up even more
opportunities for vector narrowing from changes like D53784, so there are a lot of test diffs.
Apart from 2-3 strange cases, these are all wins.
I've structured this to be no-functional-change-intended for any target except for x86
because I couldn't tell if AArch64, ARM, and AMDGPU would improve or not. All of those
targets have existing regression tests (4, 4, 10 files respectively) that would be
affected. Also, Hexagon overrides the shouldReduceLoadWidth() hook, but doesn't show
any regression test diffs. The trade-off is deciding if an extra vector load is better
than a single wide load + extract_subvector.
For x86, this is almost always better (on paper at least) because we often can fold
loads into subsequent ops and not increase the official instruction count. There's also
some unknown -- but potentially large -- benefit from using narrower vector ops if wide
ops are implemented with multiple uops and/or frequency throttling is avoided.
Differential Revision: https://reviews.llvm.org/D54073
llvm-svn: 346595
2018-11-11 04:05:31 +08:00
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; AVX512BWVL-NEXT: vmovdqa (%rdi), %xmm0
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; AVX512BWVL-NEXT: vmovdqa 16(%rdi), %xmm1
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2017-10-12 08:24:52 +08:00
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; AVX512BWVL-NEXT: vmovdqa {{.*#+}} xmm2 = [7,7,14,14,15,15,14,14,15,15,4,4,5,5,6,6]
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; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm1, %xmm1
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; AVX512BWVL-NEXT: vpshufb %xmm2, %xmm0, %xmm0
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; AVX512BWVL-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
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; AVX512BWVL-NEXT: vpmovdb %xmm0, (%rsi)
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2017-07-21 05:03:36 +08:00
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; AVX512BWVL-NEXT: retq
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%vec = load <32 x i8>, <32 x i8>* %L
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%strided.vec = shufflevector <32 x i8> %vec, <32 x i8> undef, <4 x i32> <i32 7, i32 15, i32 23, i32 31>
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store <4 x i8> %strided.vec, <4 x i8>* %S
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ret void
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}
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