forked from OSchip/llvm-project
458 lines
16 KiB
LLVM
458 lines
16 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 | FileCheck %s --check-prefixes=CHECK,SSE
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefixes=CHECK,AVX,AVX2-SLOW
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2,+fast-variable-crosslane-shuffle,+fast-variable-perlane-shuffle | FileCheck %s --check-prefixes=CHECK,AVX,AVX2-FAST-ALL
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2,+fast-variable-perlane-shuffle | FileCheck %s --check-prefixes=CHECK,AVX,AVX2-FAST-PERLANE
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; fold (srl 0, x) -> 0
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define <4 x i32> @combine_vec_lshr_zero(<4 x i32> %x) {
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; SSE-LABEL: combine_vec_lshr_zero:
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; SSE: # %bb.0:
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; SSE-NEXT: xorps %xmm0, %xmm0
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; SSE-NEXT: retq
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;
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; AVX-LABEL: combine_vec_lshr_zero:
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; AVX: # %bb.0:
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; AVX-NEXT: vxorps %xmm0, %xmm0, %xmm0
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; AVX-NEXT: retq
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%1 = lshr <4 x i32> zeroinitializer, %x
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ret <4 x i32> %1
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}
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; fold (srl x, c >= size(x)) -> undef
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define <4 x i32> @combine_vec_lshr_outofrange0(<4 x i32> %x) {
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; CHECK-LABEL: combine_vec_lshr_outofrange0:
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; CHECK: # %bb.0:
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; CHECK-NEXT: retq
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%1 = lshr <4 x i32> %x, <i32 33, i32 33, i32 33, i32 33>
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ret <4 x i32> %1
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}
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define <4 x i32> @combine_vec_lshr_outofrange1(<4 x i32> %x) {
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; CHECK-LABEL: combine_vec_lshr_outofrange1:
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; CHECK: # %bb.0:
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; CHECK-NEXT: retq
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%1 = lshr <4 x i32> %x, <i32 33, i32 34, i32 35, i32 36>
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ret <4 x i32> %1
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}
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define <4 x i32> @combine_vec_lshr_outofrange2(<4 x i32> %x) {
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; CHECK-LABEL: combine_vec_lshr_outofrange2:
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; CHECK: # %bb.0:
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; CHECK-NEXT: retq
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%1 = lshr <4 x i32> %x, <i32 33, i32 34, i32 35, i32 undef>
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ret <4 x i32> %1
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}
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; fold (srl x, 0) -> x
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define <4 x i32> @combine_vec_lshr_by_zero(<4 x i32> %x) {
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; CHECK-LABEL: combine_vec_lshr_by_zero:
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; CHECK: # %bb.0:
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; CHECK-NEXT: retq
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%1 = lshr <4 x i32> %x, zeroinitializer
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ret <4 x i32> %1
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}
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; if (srl x, c) is known to be zero, return 0
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define <4 x i32> @combine_vec_lshr_known_zero0(<4 x i32> %x) {
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; SSE-LABEL: combine_vec_lshr_known_zero0:
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; SSE: # %bb.0:
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; SSE-NEXT: xorps %xmm0, %xmm0
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; SSE-NEXT: retq
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;
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; AVX-LABEL: combine_vec_lshr_known_zero0:
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; AVX: # %bb.0:
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; AVX-NEXT: vxorps %xmm0, %xmm0, %xmm0
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; AVX-NEXT: retq
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%1 = and <4 x i32> %x, <i32 15, i32 15, i32 15, i32 15>
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%2 = lshr <4 x i32> %1, <i32 4, i32 4, i32 4, i32 4>
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ret <4 x i32> %2
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}
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define <4 x i32> @combine_vec_lshr_known_zero1(<4 x i32> %x) {
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; SSE-LABEL: combine_vec_lshr_known_zero1:
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; SSE: # %bb.0:
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; SSE-NEXT: xorps %xmm0, %xmm0
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; SSE-NEXT: retq
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;
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; AVX-LABEL: combine_vec_lshr_known_zero1:
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; AVX: # %bb.0:
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; AVX-NEXT: vpbroadcastd {{.*#+}} xmm1 = [15,15,15,15]
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; AVX-NEXT: vpand %xmm1, %xmm0, %xmm0
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; AVX-NEXT: vpsrlvd {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
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; AVX-NEXT: retq
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%1 = and <4 x i32> %x, <i32 15, i32 15, i32 15, i32 15>
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%2 = lshr <4 x i32> %1, <i32 8, i32 9, i32 10, i32 11>
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ret <4 x i32> %2
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}
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; fold (srl (srl x, c1), c2) -> (srl x, (add c1, c2))
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define <4 x i32> @combine_vec_lshr_lshr0(<4 x i32> %x) {
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; SSE-LABEL: combine_vec_lshr_lshr0:
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; SSE: # %bb.0:
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; SSE-NEXT: psrld $6, %xmm0
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; SSE-NEXT: retq
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;
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; AVX-LABEL: combine_vec_lshr_lshr0:
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; AVX: # %bb.0:
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; AVX-NEXT: vpsrld $6, %xmm0, %xmm0
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; AVX-NEXT: retq
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%1 = lshr <4 x i32> %x, <i32 2, i32 2, i32 2, i32 2>
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%2 = lshr <4 x i32> %1, <i32 4, i32 4, i32 4, i32 4>
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ret <4 x i32> %2
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}
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define <4 x i32> @combine_vec_lshr_lshr1(<4 x i32> %x) {
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; SSE-LABEL: combine_vec_lshr_lshr1:
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; SSE: # %bb.0:
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; SSE-NEXT: movdqa %xmm0, %xmm1
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; SSE-NEXT: psrld $10, %xmm1
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; SSE-NEXT: movdqa %xmm0, %xmm2
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; SSE-NEXT: psrld $6, %xmm2
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; SSE-NEXT: pblendw {{.*#+}} xmm2 = xmm2[0,1,2,3],xmm1[4,5,6,7]
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; SSE-NEXT: movdqa %xmm0, %xmm1
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; SSE-NEXT: psrld $8, %xmm1
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; SSE-NEXT: psrld $4, %xmm0
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; SSE-NEXT: pblendw {{.*#+}} xmm0 = xmm0[0,1,2,3],xmm1[4,5,6,7]
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; SSE-NEXT: pblendw {{.*#+}} xmm0 = xmm0[0,1],xmm2[2,3],xmm0[4,5],xmm2[6,7]
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; SSE-NEXT: retq
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;
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; AVX-LABEL: combine_vec_lshr_lshr1:
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; AVX: # %bb.0:
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; AVX-NEXT: vpsrlvd {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
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; AVX-NEXT: retq
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%1 = lshr <4 x i32> %x, <i32 0, i32 1, i32 2, i32 3>
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%2 = lshr <4 x i32> %1, <i32 4, i32 5, i32 6, i32 7>
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ret <4 x i32> %2
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}
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; fold (srl (srl x, c1), c2) -> 0
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define <4 x i32> @combine_vec_lshr_lshr_zero0(<4 x i32> %x) {
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; SSE-LABEL: combine_vec_lshr_lshr_zero0:
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; SSE: # %bb.0:
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; SSE-NEXT: xorps %xmm0, %xmm0
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; SSE-NEXT: retq
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;
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; AVX-LABEL: combine_vec_lshr_lshr_zero0:
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; AVX: # %bb.0:
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; AVX-NEXT: vxorps %xmm0, %xmm0, %xmm0
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; AVX-NEXT: retq
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%1 = lshr <4 x i32> %x, <i32 16, i32 16, i32 16, i32 16>
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%2 = lshr <4 x i32> %1, <i32 20, i32 20, i32 20, i32 20>
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ret <4 x i32> %2
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}
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define <4 x i32> @combine_vec_lshr_lshr_zero1(<4 x i32> %x) {
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; SSE-LABEL: combine_vec_lshr_lshr_zero1:
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; SSE: # %bb.0:
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; SSE-NEXT: xorps %xmm0, %xmm0
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; SSE-NEXT: retq
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;
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; AVX-LABEL: combine_vec_lshr_lshr_zero1:
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; AVX: # %bb.0:
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; AVX-NEXT: vxorps %xmm0, %xmm0, %xmm0
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; AVX-NEXT: retq
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%1 = lshr <4 x i32> %x, <i32 17, i32 18, i32 19, i32 20>
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%2 = lshr <4 x i32> %1, <i32 25, i32 26, i32 27, i32 28>
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ret <4 x i32> %2
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}
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; fold (srl (trunc (srl x, c1)), c2) -> (trunc (srl x, (add c1, c2)))
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define <4 x i32> @combine_vec_lshr_trunc_lshr0(<4 x i64> %x) {
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; SSE-LABEL: combine_vec_lshr_trunc_lshr0:
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; SSE: # %bb.0:
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; SSE-NEXT: psrlq $48, %xmm1
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; SSE-NEXT: psrlq $48, %xmm0
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; SSE-NEXT: packusdw %xmm1, %xmm0
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; SSE-NEXT: retq
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;
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; AVX-LABEL: combine_vec_lshr_trunc_lshr0:
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; AVX: # %bb.0:
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; AVX-NEXT: vpsrlq $48, %ymm0, %ymm0
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; AVX-NEXT: vextracti128 $1, %ymm0, %xmm1
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; AVX-NEXT: vpackusdw %xmm1, %xmm0, %xmm0
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; AVX-NEXT: vzeroupper
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; AVX-NEXT: retq
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%1 = lshr <4 x i64> %x, <i64 32, i64 32, i64 32, i64 32>
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%2 = trunc <4 x i64> %1 to <4 x i32>
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%3 = lshr <4 x i32> %2, <i32 16, i32 16, i32 16, i32 16>
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ret <4 x i32> %3
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}
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define <4 x i32> @combine_vec_lshr_trunc_lshr1(<4 x i64> %x) {
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; SSE-LABEL: combine_vec_lshr_trunc_lshr1:
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; SSE: # %bb.0:
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; SSE-NEXT: movdqa %xmm1, %xmm2
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; SSE-NEXT: psrlq $35, %xmm2
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; SSE-NEXT: psrlq $34, %xmm1
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; SSE-NEXT: pblendw {{.*#+}} xmm1 = xmm1[0,1,2,3],xmm2[4,5,6,7]
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; SSE-NEXT: movdqa %xmm0, %xmm2
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; SSE-NEXT: psrlq $33, %xmm2
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; SSE-NEXT: psrlq $32, %xmm0
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; SSE-NEXT: pblendw {{.*#+}} xmm2 = xmm0[0,1,2,3],xmm2[4,5,6,7]
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; SSE-NEXT: shufps {{.*#+}} xmm2 = xmm2[0,2],xmm1[0,2]
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; SSE-NEXT: movaps %xmm2, %xmm1
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; SSE-NEXT: psrld $19, %xmm1
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; SSE-NEXT: movaps %xmm2, %xmm3
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; SSE-NEXT: psrld $17, %xmm3
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; SSE-NEXT: pblendw {{.*#+}} xmm3 = xmm3[0,1,2,3],xmm1[4,5,6,7]
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; SSE-NEXT: psrld $18, %xmm2
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; SSE-NEXT: psrld $16, %xmm0
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; SSE-NEXT: pblendw {{.*#+}} xmm0 = xmm0[0,1,2,3],xmm2[4,5,6,7]
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; SSE-NEXT: pblendw {{.*#+}} xmm0 = xmm0[0,1],xmm3[2,3],xmm0[4,5],xmm3[6,7]
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; SSE-NEXT: retq
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;
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; AVX2-SLOW-LABEL: combine_vec_lshr_trunc_lshr1:
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; AVX2-SLOW: # %bb.0:
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; AVX2-SLOW-NEXT: vpsrlvq {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %ymm0, %ymm0
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; AVX2-SLOW-NEXT: vextracti128 $1, %ymm0, %xmm1
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; AVX2-SLOW-NEXT: vshufps {{.*#+}} xmm0 = xmm0[0,2],xmm1[0,2]
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; AVX2-SLOW-NEXT: vpsrlvd {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
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; AVX2-SLOW-NEXT: vzeroupper
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; AVX2-SLOW-NEXT: retq
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;
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; AVX2-FAST-ALL-LABEL: combine_vec_lshr_trunc_lshr1:
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; AVX2-FAST-ALL: # %bb.0:
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; AVX2-FAST-ALL-NEXT: vpsrlvq {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %ymm0, %ymm0
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; AVX2-FAST-ALL-NEXT: vmovdqa {{.*#+}} ymm1 = <0,2,4,6,u,u,u,u>
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; AVX2-FAST-ALL-NEXT: vpermd %ymm0, %ymm1, %ymm0
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; AVX2-FAST-ALL-NEXT: vpsrlvd {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
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; AVX2-FAST-ALL-NEXT: vzeroupper
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; AVX2-FAST-ALL-NEXT: retq
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;
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; AVX2-FAST-PERLANE-LABEL: combine_vec_lshr_trunc_lshr1:
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; AVX2-FAST-PERLANE: # %bb.0:
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; AVX2-FAST-PERLANE-NEXT: vpsrlvq {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %ymm0, %ymm0
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; AVX2-FAST-PERLANE-NEXT: vextracti128 $1, %ymm0, %xmm1
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; AVX2-FAST-PERLANE-NEXT: vshufps {{.*#+}} xmm0 = xmm0[0,2],xmm1[0,2]
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; AVX2-FAST-PERLANE-NEXT: vpsrlvd {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
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; AVX2-FAST-PERLANE-NEXT: vzeroupper
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; AVX2-FAST-PERLANE-NEXT: retq
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%1 = lshr <4 x i64> %x, <i64 32, i64 33, i64 34, i64 35>
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%2 = trunc <4 x i64> %1 to <4 x i32>
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%3 = lshr <4 x i32> %2, <i32 16, i32 17, i32 18, i32 19>
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ret <4 x i32> %3
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}
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; fold (srl (trunc (srl x, c1)), c2) -> 0
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define <4 x i32> @combine_vec_lshr_trunc_lshr_zero0(<4 x i64> %x) {
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; SSE-LABEL: combine_vec_lshr_trunc_lshr_zero0:
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; SSE: # %bb.0:
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; SSE-NEXT: xorps %xmm0, %xmm0
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; SSE-NEXT: retq
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;
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; AVX-LABEL: combine_vec_lshr_trunc_lshr_zero0:
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; AVX: # %bb.0:
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; AVX-NEXT: vxorps %xmm0, %xmm0, %xmm0
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; AVX-NEXT: retq
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%1 = lshr <4 x i64> %x, <i64 48, i64 48, i64 48, i64 48>
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%2 = trunc <4 x i64> %1 to <4 x i32>
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%3 = lshr <4 x i32> %2, <i32 24, i32 24, i32 24, i32 24>
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ret <4 x i32> %3
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}
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define <4 x i32> @combine_vec_lshr_trunc_lshr_zero1(<4 x i64> %x) {
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; SSE-LABEL: combine_vec_lshr_trunc_lshr_zero1:
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; SSE: # %bb.0:
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; SSE-NEXT: xorps %xmm0, %xmm0
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; SSE-NEXT: retq
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;
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; AVX-LABEL: combine_vec_lshr_trunc_lshr_zero1:
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; AVX: # %bb.0:
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; AVX-NEXT: vpsrlvq {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %ymm0, %ymm0
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; AVX-NEXT: vextracti128 $1, %ymm0, %xmm1
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; AVX-NEXT: vpackusdw %xmm1, %xmm0, %xmm0
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; AVX-NEXT: vpsrlvd {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
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; AVX-NEXT: vzeroupper
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; AVX-NEXT: retq
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%1 = lshr <4 x i64> %x, <i64 48, i64 49, i64 50, i64 51>
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%2 = trunc <4 x i64> %1 to <4 x i32>
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%3 = lshr <4 x i32> %2, <i32 24, i32 25, i32 26, i32 27>
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ret <4 x i32> %3
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}
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; fold (srl (shl x, c), c) -> (and x, cst2)
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define <4 x i32> @combine_vec_lshr_shl_mask0(<4 x i32> %x) {
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; SSE-LABEL: combine_vec_lshr_shl_mask0:
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; SSE: # %bb.0:
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; SSE-NEXT: andps {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
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; SSE-NEXT: retq
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;
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; AVX-LABEL: combine_vec_lshr_shl_mask0:
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; AVX: # %bb.0:
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; AVX-NEXT: vbroadcastss {{.*#+}} xmm1 = [1073741823,1073741823,1073741823,1073741823]
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; AVX-NEXT: vandps %xmm1, %xmm0, %xmm0
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; AVX-NEXT: retq
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%1 = shl <4 x i32> %x, <i32 2, i32 2, i32 2, i32 2>
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%2 = lshr <4 x i32> %1, <i32 2, i32 2, i32 2, i32 2>
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ret <4 x i32> %2
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}
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define <4 x i32> @combine_vec_lshr_shl_mask1(<4 x i32> %x) {
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; SSE-LABEL: combine_vec_lshr_shl_mask1:
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; SSE: # %bb.0:
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; SSE-NEXT: andps {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
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; SSE-NEXT: retq
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;
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; AVX-LABEL: combine_vec_lshr_shl_mask1:
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; AVX: # %bb.0:
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; AVX-NEXT: vandps {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
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; AVX-NEXT: retq
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%1 = shl <4 x i32> %x, <i32 2, i32 3, i32 4, i32 5>
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%2 = lshr <4 x i32> %1, <i32 2, i32 3, i32 4, i32 5>
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ret <4 x i32> %2
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}
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; fold (srl (sra X, Y), 31) -> (srl X, 31)
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define <4 x i32> @combine_vec_lshr_ashr_sign(<4 x i32> %x, <4 x i32> %y) {
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; SSE-LABEL: combine_vec_lshr_ashr_sign:
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; SSE: # %bb.0:
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; SSE-NEXT: psrld $31, %xmm0
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; SSE-NEXT: retq
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;
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; AVX-LABEL: combine_vec_lshr_ashr_sign:
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; AVX: # %bb.0:
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; AVX-NEXT: vpsrld $31, %xmm0, %xmm0
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; AVX-NEXT: retq
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%1 = ashr <4 x i32> %x, %y
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%2 = lshr <4 x i32> %1, <i32 31, i32 31, i32 31, i32 31>
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ret <4 x i32> %2
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}
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; fold (srl (ctlz x), "5") -> x iff x has one bit set (the low bit).
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define <4 x i32> @combine_vec_lshr_lzcnt_bit0(<4 x i32> %x) {
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; SSE-LABEL: combine_vec_lshr_lzcnt_bit0:
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; SSE: # %bb.0:
|
|
; SSE-NEXT: pand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
|
|
; SSE-NEXT: psrld $4, %xmm0
|
|
; SSE-NEXT: pxor {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
|
|
; SSE-NEXT: retq
|
|
;
|
|
; AVX-LABEL: combine_vec_lshr_lzcnt_bit0:
|
|
; AVX: # %bb.0:
|
|
; AVX-NEXT: vpbroadcastd {{.*#+}} xmm1 = [16,16,16,16]
|
|
; AVX-NEXT: vpand %xmm1, %xmm0, %xmm0
|
|
; AVX-NEXT: vpsrld $4, %xmm0, %xmm0
|
|
; AVX-NEXT: vpbroadcastd {{.*#+}} xmm1 = [1,1,1,1]
|
|
; AVX-NEXT: vpxor %xmm1, %xmm0, %xmm0
|
|
; AVX-NEXT: retq
|
|
%1 = and <4 x i32> %x, <i32 16, i32 16, i32 16, i32 16>
|
|
%2 = call <4 x i32> @llvm.ctlz.v4i32(<4 x i32> %1, i1 0)
|
|
%3 = lshr <4 x i32> %2, <i32 5, i32 5, i32 5, i32 5>
|
|
ret <4 x i32> %3
|
|
}
|
|
|
|
define <4 x i32> @combine_vec_lshr_lzcnt_bit1(<4 x i32> %x) {
|
|
; SSE-LABEL: combine_vec_lshr_lzcnt_bit1:
|
|
; SSE: # %bb.0:
|
|
; SSE-NEXT: pand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
|
|
; SSE-NEXT: movdqa {{.*#+}} xmm2 = [4,3,2,2,1,1,1,1,0,0,0,0,0,0,0,0]
|
|
; SSE-NEXT: movdqa %xmm2, %xmm3
|
|
; SSE-NEXT: pshufb %xmm0, %xmm3
|
|
; SSE-NEXT: movdqa %xmm0, %xmm1
|
|
; SSE-NEXT: psrlw $4, %xmm1
|
|
; SSE-NEXT: pxor %xmm4, %xmm4
|
|
; SSE-NEXT: pshufb %xmm1, %xmm2
|
|
; SSE-NEXT: pcmpeqb %xmm4, %xmm1
|
|
; SSE-NEXT: pand %xmm3, %xmm1
|
|
; SSE-NEXT: paddb %xmm2, %xmm1
|
|
; SSE-NEXT: movdqa %xmm0, %xmm2
|
|
; SSE-NEXT: pcmpeqb %xmm4, %xmm2
|
|
; SSE-NEXT: psrlw $8, %xmm2
|
|
; SSE-NEXT: pand %xmm1, %xmm2
|
|
; SSE-NEXT: psrlw $8, %xmm1
|
|
; SSE-NEXT: paddw %xmm2, %xmm1
|
|
; SSE-NEXT: pcmpeqw %xmm4, %xmm0
|
|
; SSE-NEXT: psrld $16, %xmm0
|
|
; SSE-NEXT: pand %xmm1, %xmm0
|
|
; SSE-NEXT: psrld $16, %xmm1
|
|
; SSE-NEXT: paddd %xmm0, %xmm1
|
|
; SSE-NEXT: psrld $5, %xmm1
|
|
; SSE-NEXT: movdqa %xmm1, %xmm0
|
|
; SSE-NEXT: retq
|
|
;
|
|
; AVX-LABEL: combine_vec_lshr_lzcnt_bit1:
|
|
; AVX: # %bb.0:
|
|
; AVX-NEXT: vpand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
|
|
; AVX-NEXT: vmovdqa {{.*#+}} xmm1 = [4,3,2,2,1,1,1,1,0,0,0,0,0,0,0,0]
|
|
; AVX-NEXT: vpshufb %xmm0, %xmm1, %xmm2
|
|
; AVX-NEXT: vpsrlw $4, %xmm0, %xmm3
|
|
; AVX-NEXT: vpxor %xmm4, %xmm4, %xmm4
|
|
; AVX-NEXT: vpcmpeqb %xmm4, %xmm3, %xmm5
|
|
; AVX-NEXT: vpand %xmm5, %xmm2, %xmm2
|
|
; AVX-NEXT: vpshufb %xmm3, %xmm1, %xmm1
|
|
; AVX-NEXT: vpaddb %xmm1, %xmm2, %xmm1
|
|
; AVX-NEXT: vpcmpeqb %xmm4, %xmm0, %xmm2
|
|
; AVX-NEXT: vpsrlw $8, %xmm2, %xmm2
|
|
; AVX-NEXT: vpand %xmm2, %xmm1, %xmm2
|
|
; AVX-NEXT: vpsrlw $8, %xmm1, %xmm1
|
|
; AVX-NEXT: vpaddw %xmm2, %xmm1, %xmm1
|
|
; AVX-NEXT: vpcmpeqw %xmm4, %xmm0, %xmm0
|
|
; AVX-NEXT: vpsrld $16, %xmm0, %xmm0
|
|
; AVX-NEXT: vpand %xmm0, %xmm1, %xmm0
|
|
; AVX-NEXT: vpsrld $16, %xmm1, %xmm1
|
|
; AVX-NEXT: vpaddd %xmm0, %xmm1, %xmm0
|
|
; AVX-NEXT: vpsrld $5, %xmm0, %xmm0
|
|
; AVX-NEXT: retq
|
|
%1 = and <4 x i32> %x, <i32 4, i32 32, i32 64, i32 128>
|
|
%2 = call <4 x i32> @llvm.ctlz.v4i32(<4 x i32> %1, i1 0)
|
|
%3 = lshr <4 x i32> %2, <i32 5, i32 5, i32 5, i32 5>
|
|
ret <4 x i32> %3
|
|
}
|
|
declare <4 x i32> @llvm.ctlz.v4i32(<4 x i32>, i1)
|
|
|
|
; fold (srl x, (trunc (and y, c))) -> (srl x, (and (trunc y), (trunc c))).
|
|
define <4 x i32> @combine_vec_lshr_trunc_and(<4 x i32> %x, <4 x i64> %y) {
|
|
; SSE-LABEL: combine_vec_lshr_trunc_and:
|
|
; SSE: # %bb.0:
|
|
; SSE-NEXT: shufps {{.*#+}} xmm1 = xmm1[0,2],xmm2[0,2]
|
|
; SSE-NEXT: andps {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm1
|
|
; SSE-NEXT: pshuflw {{.*#+}} xmm2 = xmm1[2,3,3,3,4,5,6,7]
|
|
; SSE-NEXT: movdqa %xmm0, %xmm3
|
|
; SSE-NEXT: psrld %xmm2, %xmm3
|
|
; SSE-NEXT: pshufd {{.*#+}} xmm2 = xmm1[2,3,2,3]
|
|
; SSE-NEXT: pshuflw {{.*#+}} xmm4 = xmm2[2,3,3,3,4,5,6,7]
|
|
; SSE-NEXT: movdqa %xmm0, %xmm5
|
|
; SSE-NEXT: psrld %xmm4, %xmm5
|
|
; SSE-NEXT: pblendw {{.*#+}} xmm5 = xmm3[0,1,2,3],xmm5[4,5,6,7]
|
|
; SSE-NEXT: pshuflw {{.*#+}} xmm1 = xmm1[0,1,1,1,4,5,6,7]
|
|
; SSE-NEXT: movdqa %xmm0, %xmm3
|
|
; SSE-NEXT: psrld %xmm1, %xmm3
|
|
; SSE-NEXT: pshuflw {{.*#+}} xmm1 = xmm2[0,1,1,1,4,5,6,7]
|
|
; SSE-NEXT: psrld %xmm1, %xmm0
|
|
; SSE-NEXT: pblendw {{.*#+}} xmm0 = xmm3[0,1,2,3],xmm0[4,5,6,7]
|
|
; SSE-NEXT: pblendw {{.*#+}} xmm0 = xmm0[0,1],xmm5[2,3],xmm0[4,5],xmm5[6,7]
|
|
; SSE-NEXT: retq
|
|
;
|
|
; AVX2-SLOW-LABEL: combine_vec_lshr_trunc_and:
|
|
; AVX2-SLOW: # %bb.0:
|
|
; AVX2-SLOW-NEXT: vextractf128 $1, %ymm1, %xmm2
|
|
; AVX2-SLOW-NEXT: vshufps {{.*#+}} xmm1 = xmm1[0,2],xmm2[0,2]
|
|
; AVX2-SLOW-NEXT: vandps {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm1, %xmm1
|
|
; AVX2-SLOW-NEXT: vpsrlvd %xmm1, %xmm0, %xmm0
|
|
; AVX2-SLOW-NEXT: vzeroupper
|
|
; AVX2-SLOW-NEXT: retq
|
|
;
|
|
; AVX2-FAST-ALL-LABEL: combine_vec_lshr_trunc_and:
|
|
; AVX2-FAST-ALL: # %bb.0:
|
|
; AVX2-FAST-ALL-NEXT: vmovdqa {{.*#+}} ymm2 = <0,2,4,6,u,u,u,u>
|
|
; AVX2-FAST-ALL-NEXT: vpermd %ymm1, %ymm2, %ymm1
|
|
; AVX2-FAST-ALL-NEXT: vpand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm1, %xmm1
|
|
; AVX2-FAST-ALL-NEXT: vpsrlvd %xmm1, %xmm0, %xmm0
|
|
; AVX2-FAST-ALL-NEXT: vzeroupper
|
|
; AVX2-FAST-ALL-NEXT: retq
|
|
;
|
|
; AVX2-FAST-PERLANE-LABEL: combine_vec_lshr_trunc_and:
|
|
; AVX2-FAST-PERLANE: # %bb.0:
|
|
; AVX2-FAST-PERLANE-NEXT: vextractf128 $1, %ymm1, %xmm2
|
|
; AVX2-FAST-PERLANE-NEXT: vshufps {{.*#+}} xmm1 = xmm1[0,2],xmm2[0,2]
|
|
; AVX2-FAST-PERLANE-NEXT: vandps {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm1, %xmm1
|
|
; AVX2-FAST-PERLANE-NEXT: vpsrlvd %xmm1, %xmm0, %xmm0
|
|
; AVX2-FAST-PERLANE-NEXT: vzeroupper
|
|
; AVX2-FAST-PERLANE-NEXT: retq
|
|
%1 = and <4 x i64> %y, <i64 15, i64 255, i64 4095, i64 65535>
|
|
%2 = trunc <4 x i64> %1 to <4 x i32>
|
|
%3 = lshr <4 x i32> %x, %2
|
|
ret <4 x i32> %3
|
|
}
|