llvm-project/llvm/test/CodeGen/X86/vector-pcmp.ll

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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefix=CHECK --check-prefix=SSE --check-prefix=SSE2
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.2 | FileCheck %s --check-prefix=CHECK --check-prefix=SSE --check-prefix=SSE42
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=CHECK --check-prefix=AVX --check-prefix=AVX1
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefix=CHECK --check-prefix=AVX --check-prefix=AVX2
; Lower common integer comparisons such as 'isPositive' efficiently:
; https://llvm.org/bugs/show_bug.cgi?id=26701
define <16 x i8> @test_pcmpgtb(<16 x i8> %x) {
; SSE-LABEL: test_pcmpgtb:
; SSE: # %bb.0:
; SSE-NEXT: pcmpeqd %xmm1, %xmm1
; SSE-NEXT: pcmpgtb %xmm1, %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: test_pcmpgtb:
; AVX: # %bb.0:
; AVX-NEXT: vpcmpeqd %xmm1, %xmm1, %xmm1
; AVX-NEXT: vpcmpgtb %xmm1, %xmm0, %xmm0
; AVX-NEXT: retq
%sign = ashr <16 x i8> %x, <i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7>
%not = xor <16 x i8> %sign, <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1>
ret <16 x i8> %not
}
define <8 x i16> @test_pcmpgtw(<8 x i16> %x) {
; SSE-LABEL: test_pcmpgtw:
; SSE: # %bb.0:
; SSE-NEXT: pcmpeqd %xmm1, %xmm1
; SSE-NEXT: pcmpgtw %xmm1, %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: test_pcmpgtw:
; AVX: # %bb.0:
; AVX-NEXT: vpcmpeqd %xmm1, %xmm1, %xmm1
; AVX-NEXT: vpcmpgtw %xmm1, %xmm0, %xmm0
; AVX-NEXT: retq
%sign = ashr <8 x i16> %x, <i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15>
%not = xor <8 x i16> %sign, <i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1>
ret <8 x i16> %not
}
define <4 x i32> @test_pcmpgtd(<4 x i32> %x) {
; SSE-LABEL: test_pcmpgtd:
; SSE: # %bb.0:
; SSE-NEXT: pcmpeqd %xmm1, %xmm1
; SSE-NEXT: pcmpgtd %xmm1, %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: test_pcmpgtd:
; AVX: # %bb.0:
; AVX-NEXT: vpcmpeqd %xmm1, %xmm1, %xmm1
; AVX-NEXT: vpcmpgtd %xmm1, %xmm0, %xmm0
; AVX-NEXT: retq
%sign = ashr <4 x i32> %x, <i32 31, i32 31, i32 31, i32 31>
%not = xor <4 x i32> %sign, <i32 -1, i32 -1, i32 -1, i32 -1>
ret <4 x i32> %not
}
define <2 x i64> @test_pcmpgtq(<2 x i64> %x) {
; SSE2-LABEL: test_pcmpgtq:
; SSE2: # %bb.0:
; SSE2-NEXT: pcmpeqd %xmm1, %xmm1
; SSE2-NEXT: pcmpgtd %xmm1, %xmm0
; SSE2-NEXT: pshufd {{.*#+}} xmm0 = xmm0[1,1,3,3]
; SSE2-NEXT: retq
;
; SSE42-LABEL: test_pcmpgtq:
; SSE42: # %bb.0:
; SSE42-NEXT: pcmpeqd %xmm1, %xmm1
; SSE42-NEXT: pcmpgtq %xmm1, %xmm0
; SSE42-NEXT: retq
;
; AVX-LABEL: test_pcmpgtq:
; AVX: # %bb.0:
; AVX-NEXT: vpcmpeqd %xmm1, %xmm1, %xmm1
; AVX-NEXT: vpcmpgtq %xmm1, %xmm0, %xmm0
; AVX-NEXT: retq
%sign = ashr <2 x i64> %x, <i64 63, i64 63>
%not = xor <2 x i64> %sign, <i64 -1, i64 -1>
ret <2 x i64> %not
}
define <1 x i128> @test_strange_type(<1 x i128> %x) {
; CHECK-LABEL: test_strange_type:
; CHECK: # %bb.0:
; CHECK-NEXT: movq %rsi, %rax
; CHECK-NEXT: sarq $63, %rax
; CHECK-NEXT: notq %rax
; CHECK-NEXT: movq %rax, %rdx
; CHECK-NEXT: retq
%sign = ashr <1 x i128> %x, <i128 127>
%not = xor <1 x i128> %sign, <i128 -1>
ret <1 x i128> %not
}
define <32 x i8> @test_pcmpgtb_256(<32 x i8> %x) {
; SSE-LABEL: test_pcmpgtb_256:
; SSE: # %bb.0:
; SSE-NEXT: pcmpeqd %xmm2, %xmm2
; SSE-NEXT: pcmpgtb %xmm2, %xmm0
; SSE-NEXT: pcmpgtb %xmm2, %xmm1
; SSE-NEXT: retq
;
; AVX1-LABEL: test_pcmpgtb_256:
; AVX1: # %bb.0:
; AVX1-NEXT: vextractf128 $1, %ymm0, %xmm1
; AVX1-NEXT: vpxor %xmm2, %xmm2, %xmm2
; AVX1-NEXT: vpcmpgtb %xmm1, %xmm2, %xmm1
; AVX1-NEXT: vpcmpgtb %xmm0, %xmm2, %xmm0
; AVX1-NEXT: vinsertf128 $1, %xmm1, %ymm0, %ymm0
; AVX1-NEXT: vpxor %xmm1, %xmm1, %xmm1
; AVX1-NEXT: vcmptrueps %ymm1, %ymm1, %ymm1
; AVX1-NEXT: vxorps %ymm1, %ymm0, %ymm0
; AVX1-NEXT: retq
;
; AVX2-LABEL: test_pcmpgtb_256:
; AVX2: # %bb.0:
; AVX2-NEXT: vpcmpeqd %ymm1, %ymm1, %ymm1
; AVX2-NEXT: vpcmpgtb %ymm1, %ymm0, %ymm0
; AVX2-NEXT: retq
%sign = ashr <32 x i8> %x, <i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7, i8 7>
%not = xor <32 x i8> %sign, <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1>
ret <32 x i8> %not
}
define <16 x i16> @test_pcmpgtw_256(<16 x i16> %x) {
; SSE-LABEL: test_pcmpgtw_256:
; SSE: # %bb.0:
; SSE-NEXT: pcmpeqd %xmm2, %xmm2
; SSE-NEXT: pcmpgtw %xmm2, %xmm0
; SSE-NEXT: pcmpgtw %xmm2, %xmm1
; SSE-NEXT: retq
;
; AVX1-LABEL: test_pcmpgtw_256:
; AVX1: # %bb.0:
; AVX1-NEXT: vpsraw $15, %xmm0, %xmm1
; AVX1-NEXT: vextractf128 $1, %ymm0, %xmm0
; AVX1-NEXT: vpsraw $15, %xmm0, %xmm0
; AVX1-NEXT: vinsertf128 $1, %xmm0, %ymm1, %ymm0
; AVX1-NEXT: vpxor %xmm1, %xmm1, %xmm1
; AVX1-NEXT: vcmptrueps %ymm1, %ymm1, %ymm1
; AVX1-NEXT: vxorps %ymm1, %ymm0, %ymm0
; AVX1-NEXT: retq
;
; AVX2-LABEL: test_pcmpgtw_256:
; AVX2: # %bb.0:
; AVX2-NEXT: vpcmpeqd %ymm1, %ymm1, %ymm1
; AVX2-NEXT: vpcmpgtw %ymm1, %ymm0, %ymm0
; AVX2-NEXT: retq
%sign = ashr <16 x i16> %x, <i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15>
%not = xor <16 x i16> %sign, <i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1>
ret <16 x i16> %not
}
define <8 x i32> @test_pcmpgtd_256(<8 x i32> %x) {
; SSE-LABEL: test_pcmpgtd_256:
; SSE: # %bb.0:
; SSE-NEXT: pcmpeqd %xmm2, %xmm2
; SSE-NEXT: pcmpgtd %xmm2, %xmm0
; SSE-NEXT: pcmpgtd %xmm2, %xmm1
; SSE-NEXT: retq
;
; AVX1-LABEL: test_pcmpgtd_256:
; AVX1: # %bb.0:
; AVX1-NEXT: vpsrad $31, %xmm0, %xmm1
; AVX1-NEXT: vextractf128 $1, %ymm0, %xmm0
; AVX1-NEXT: vpsrad $31, %xmm0, %xmm0
; AVX1-NEXT: vinsertf128 $1, %xmm0, %ymm1, %ymm0
; AVX1-NEXT: vpxor %xmm1, %xmm1, %xmm1
; AVX1-NEXT: vcmptrueps %ymm1, %ymm1, %ymm1
; AVX1-NEXT: vxorps %ymm1, %ymm0, %ymm0
; AVX1-NEXT: retq
;
; AVX2-LABEL: test_pcmpgtd_256:
; AVX2: # %bb.0:
; AVX2-NEXT: vpcmpeqd %ymm1, %ymm1, %ymm1
; AVX2-NEXT: vpcmpgtd %ymm1, %ymm0, %ymm0
; AVX2-NEXT: retq
%sign = ashr <8 x i32> %x, <i32 31, i32 31, i32 31, i32 31, i32 31, i32 31, i32 31, i32 31>
%not = xor <8 x i32> %sign, <i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1, i32 -1>
ret <8 x i32> %not
}
define <4 x i64> @test_pcmpgtq_256(<4 x i64> %x) {
; SSE2-LABEL: test_pcmpgtq_256:
; SSE2: # %bb.0:
; SSE2-NEXT: pcmpeqd %xmm2, %xmm2
; SSE2-NEXT: pcmpgtd %xmm2, %xmm0
; SSE2-NEXT: pshufd {{.*#+}} xmm0 = xmm0[1,1,3,3]
; SSE2-NEXT: pcmpgtd %xmm2, %xmm1
; SSE2-NEXT: pshufd {{.*#+}} xmm1 = xmm1[1,1,3,3]
; SSE2-NEXT: retq
;
; SSE42-LABEL: test_pcmpgtq_256:
; SSE42: # %bb.0:
; SSE42-NEXT: pcmpeqd %xmm2, %xmm2
; SSE42-NEXT: pcmpgtq %xmm2, %xmm0
; SSE42-NEXT: pcmpgtq %xmm2, %xmm1
; SSE42-NEXT: retq
;
; AVX1-LABEL: test_pcmpgtq_256:
; AVX1: # %bb.0:
; AVX1-NEXT: vextractf128 $1, %ymm0, %xmm1
; AVX1-NEXT: vpxor %xmm2, %xmm2, %xmm2
; AVX1-NEXT: vpcmpgtq %xmm1, %xmm2, %xmm1
; AVX1-NEXT: vpcmpgtq %xmm0, %xmm2, %xmm0
; AVX1-NEXT: vinsertf128 $1, %xmm1, %ymm0, %ymm0
; AVX1-NEXT: vpxor %xmm1, %xmm1, %xmm1
; AVX1-NEXT: vcmptrueps %ymm1, %ymm1, %ymm1
; AVX1-NEXT: vxorps %ymm1, %ymm0, %ymm0
; AVX1-NEXT: retq
;
; AVX2-LABEL: test_pcmpgtq_256:
; AVX2: # %bb.0:
; AVX2-NEXT: vpcmpeqd %ymm1, %ymm1, %ymm1
; AVX2-NEXT: vpcmpgtq %ymm1, %ymm0, %ymm0
; AVX2-NEXT: retq
%sign = ashr <4 x i64> %x, <i64 63, i64 63, i64 63, i64 63>
%not = xor <4 x i64> %sign, <i64 -1, i64 -1, i64 -1, i64 -1>
ret <4 x i64> %not
}
define <16 x i8> @cmpeq_zext_v16i8(<16 x i8> %a, <16 x i8> %b) {
; SSE-LABEL: cmpeq_zext_v16i8:
; SSE: # %bb.0:
; SSE-NEXT: pcmpeqb %xmm1, %xmm0
; SSE-NEXT: pand {{.*}}(%rip), %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: cmpeq_zext_v16i8:
; AVX: # %bb.0:
; AVX-NEXT: vpcmpeqb %xmm1, %xmm0, %xmm0
; AVX-NEXT: vpand {{.*}}(%rip), %xmm0, %xmm0
; AVX-NEXT: retq
%cmp = icmp eq <16 x i8> %a, %b
%zext = zext <16 x i1> %cmp to <16 x i8>
ret <16 x i8> %zext
}
define <16 x i16> @cmpeq_zext_v16i16(<16 x i16> %a, <16 x i16> %b) {
; SSE-LABEL: cmpeq_zext_v16i16:
; SSE: # %bb.0:
; SSE-NEXT: pcmpeqw %xmm2, %xmm0
; SSE-NEXT: psrlw $15, %xmm0
; SSE-NEXT: pcmpeqw %xmm3, %xmm1
; SSE-NEXT: psrlw $15, %xmm1
; SSE-NEXT: retq
;
; AVX1-LABEL: cmpeq_zext_v16i16:
; AVX1: # %bb.0:
; AVX1-NEXT: vextractf128 $1, %ymm1, %xmm2
; AVX1-NEXT: vextractf128 $1, %ymm0, %xmm3
; AVX1-NEXT: vpcmpeqw %xmm2, %xmm3, %xmm2
; AVX1-NEXT: vpcmpeqw %xmm1, %xmm0, %xmm0
; AVX1-NEXT: vinsertf128 $1, %xmm2, %ymm0, %ymm0
; AVX1-NEXT: vandps {{.*}}(%rip), %ymm0, %ymm0
; AVX1-NEXT: retq
;
; AVX2-LABEL: cmpeq_zext_v16i16:
; AVX2: # %bb.0:
; AVX2-NEXT: vpcmpeqw %ymm1, %ymm0, %ymm0
; AVX2-NEXT: vpsrlw $15, %ymm0, %ymm0
; AVX2-NEXT: retq
%cmp = icmp eq <16 x i16> %a, %b
%zext = zext <16 x i1> %cmp to <16 x i16>
ret <16 x i16> %zext
}
define <4 x i32> @cmpeq_zext_v4i32(<4 x i32> %a, <4 x i32> %b) {
; SSE-LABEL: cmpeq_zext_v4i32:
; SSE: # %bb.0:
; SSE-NEXT: pcmpeqd %xmm1, %xmm0
; SSE-NEXT: psrld $31, %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: cmpeq_zext_v4i32:
; AVX: # %bb.0:
; AVX-NEXT: vpcmpeqd %xmm1, %xmm0, %xmm0
; AVX-NEXT: vpsrld $31, %xmm0, %xmm0
; AVX-NEXT: retq
%cmp = icmp eq <4 x i32> %a, %b
%zext = zext <4 x i1> %cmp to <4 x i32>
ret <4 x i32> %zext
}
define <4 x i64> @cmpeq_zext_v4i64(<4 x i64> %a, <4 x i64> %b) {
; SSE2-LABEL: cmpeq_zext_v4i64:
; SSE2: # %bb.0:
; SSE2-NEXT: pcmpeqd %xmm2, %xmm0
; SSE2-NEXT: pshufd {{.*#+}} xmm2 = xmm0[1,0,3,2]
; SSE2-NEXT: movdqa {{.*#+}} xmm4 = [1,1]
; SSE2-NEXT: pand %xmm4, %xmm2
; SSE2-NEXT: pand %xmm2, %xmm0
; SSE2-NEXT: pcmpeqd %xmm3, %xmm1
; SSE2-NEXT: pshufd {{.*#+}} xmm2 = xmm1[1,0,3,2]
; SSE2-NEXT: pand %xmm4, %xmm2
; SSE2-NEXT: pand %xmm2, %xmm1
; SSE2-NEXT: retq
;
; SSE42-LABEL: cmpeq_zext_v4i64:
; SSE42: # %bb.0:
; SSE42-NEXT: pcmpeqq %xmm2, %xmm0
; SSE42-NEXT: psrlq $63, %xmm0
; SSE42-NEXT: pcmpeqq %xmm3, %xmm1
; SSE42-NEXT: psrlq $63, %xmm1
; SSE42-NEXT: retq
;
; AVX1-LABEL: cmpeq_zext_v4i64:
; AVX1: # %bb.0:
; AVX1-NEXT: vextractf128 $1, %ymm1, %xmm2
; AVX1-NEXT: vextractf128 $1, %ymm0, %xmm3
; AVX1-NEXT: vpcmpeqq %xmm2, %xmm3, %xmm2
; AVX1-NEXT: vpcmpeqq %xmm1, %xmm0, %xmm0
; AVX1-NEXT: vinsertf128 $1, %xmm2, %ymm0, %ymm0
; AVX1-NEXT: vandps {{.*}}(%rip), %ymm0, %ymm0
; AVX1-NEXT: retq
;
; AVX2-LABEL: cmpeq_zext_v4i64:
; AVX2: # %bb.0:
; AVX2-NEXT: vpcmpeqq %ymm1, %ymm0, %ymm0
; AVX2-NEXT: vpsrlq $63, %ymm0, %ymm0
; AVX2-NEXT: retq
%cmp = icmp eq <4 x i64> %a, %b
%zext = zext <4 x i1> %cmp to <4 x i64>
ret <4 x i64> %zext
}
define <32 x i8> @cmpgt_zext_v32i8(<32 x i8> %a, <32 x i8> %b) {
; SSE-LABEL: cmpgt_zext_v32i8:
; SSE: # %bb.0:
; SSE-NEXT: pcmpgtb %xmm2, %xmm0
; SSE-NEXT: movdqa {{.*#+}} xmm2 = [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1]
; SSE-NEXT: pand %xmm2, %xmm0
; SSE-NEXT: pcmpgtb %xmm3, %xmm1
; SSE-NEXT: pand %xmm2, %xmm1
; SSE-NEXT: retq
;
; AVX1-LABEL: cmpgt_zext_v32i8:
; AVX1: # %bb.0:
; AVX1-NEXT: vextractf128 $1, %ymm1, %xmm2
; AVX1-NEXT: vextractf128 $1, %ymm0, %xmm3
; AVX1-NEXT: vpcmpgtb %xmm2, %xmm3, %xmm2
; AVX1-NEXT: vpcmpgtb %xmm1, %xmm0, %xmm0
; AVX1-NEXT: vinsertf128 $1, %xmm2, %ymm0, %ymm0
; AVX1-NEXT: vandps {{.*}}(%rip), %ymm0, %ymm0
; AVX1-NEXT: retq
;
; AVX2-LABEL: cmpgt_zext_v32i8:
; AVX2: # %bb.0:
; AVX2-NEXT: vpcmpgtb %ymm1, %ymm0, %ymm0
; AVX2-NEXT: vpand {{.*}}(%rip), %ymm0, %ymm0
; AVX2-NEXT: retq
%cmp = icmp sgt <32 x i8> %a, %b
%zext = zext <32 x i1> %cmp to <32 x i8>
ret <32 x i8> %zext
}
define <8 x i16> @cmpgt_zext_v8i16(<8 x i16> %a, <8 x i16> %b) {
; SSE-LABEL: cmpgt_zext_v8i16:
; SSE: # %bb.0:
; SSE-NEXT: pcmpgtw %xmm1, %xmm0
; SSE-NEXT: psrlw $15, %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: cmpgt_zext_v8i16:
; AVX: # %bb.0:
; AVX-NEXT: vpcmpgtw %xmm1, %xmm0, %xmm0
; AVX-NEXT: vpsrlw $15, %xmm0, %xmm0
; AVX-NEXT: retq
%cmp = icmp sgt <8 x i16> %a, %b
%zext = zext <8 x i1> %cmp to <8 x i16>
ret <8 x i16> %zext
}
define <8 x i32> @cmpgt_zext_v8i32(<8 x i32> %a, <8 x i32> %b) {
; SSE-LABEL: cmpgt_zext_v8i32:
; SSE: # %bb.0:
; SSE-NEXT: pcmpgtd %xmm2, %xmm0
; SSE-NEXT: psrld $31, %xmm0
; SSE-NEXT: pcmpgtd %xmm3, %xmm1
; SSE-NEXT: psrld $31, %xmm1
; SSE-NEXT: retq
;
; AVX1-LABEL: cmpgt_zext_v8i32:
; AVX1: # %bb.0:
; AVX1-NEXT: vextractf128 $1, %ymm1, %xmm2
; AVX1-NEXT: vextractf128 $1, %ymm0, %xmm3
; AVX1-NEXT: vpcmpgtd %xmm2, %xmm3, %xmm2
; AVX1-NEXT: vpcmpgtd %xmm1, %xmm0, %xmm0
; AVX1-NEXT: vinsertf128 $1, %xmm2, %ymm0, %ymm0
; AVX1-NEXT: vandps {{.*}}(%rip), %ymm0, %ymm0
; AVX1-NEXT: retq
;
; AVX2-LABEL: cmpgt_zext_v8i32:
; AVX2: # %bb.0:
; AVX2-NEXT: vpcmpgtd %ymm1, %ymm0, %ymm0
; AVX2-NEXT: vpsrld $31, %ymm0, %ymm0
; AVX2-NEXT: retq
%cmp = icmp sgt <8 x i32> %a, %b
%zext = zext <8 x i1> %cmp to <8 x i32>
ret <8 x i32> %zext
}
define <2 x i64> @cmpgt_zext_v2i64(<2 x i64> %a, <2 x i64> %b) {
; SSE2-LABEL: cmpgt_zext_v2i64:
; SSE2: # %bb.0:
[X86] When lowering unsigned v2i64 setcc without SSE42, flip the sign bits in the v2i64 type then bitcast to v4i32. This may give slightly better opportunities for DAG combine to simplify with the operations before the setcc. It also matches the type the xors will eventually be promoted to anyway so it saves a legalization step. Almost all of the test changes are because our constant pool entry is now v2i64 instead of v4i32 on 64-bit targets. On 32-bit targets getConstant should be emitting a v4i32 build_vector and a v4i32->v2i64 bitcast. There are a couple test cases where it appears we now combine a bitwise not with one of these xors which caused a new constant vector to be generated. This prevented a constant pool entry from being shared. But if that's an issue we're concerned about, it seems we need to address it another way that just relying a bitcast to hide it. This came about from experiments I've been trying with pushing the promotion of and/or/xor to vXi64 later than LegalizeVectorOps where it is today. We run LegalizeVectorOps in a bottom up order. So the and/or/xor are promoted before their users are legalized. The bitcasts added for the promotion act as a barrier to computeKnownBits if we try to use it during vector legalization of a later operation. So by moving the promotion out we can hopefully get better results from computeKnownBits/computeNumSignBits like in LowerTruncate on AVX512. I've also looked at running LegalizeVectorOps in a top down order like LegalizeDAG, but thats showing some other issues. llvm-svn: 344071
2018-10-10 03:05:50 +08:00
; SSE2-NEXT: movdqa {{.*#+}} xmm2 = [2147483648,2147483648]
; SSE2-NEXT: pxor %xmm2, %xmm1
; SSE2-NEXT: pxor %xmm2, %xmm0
; SSE2-NEXT: movdqa %xmm0, %xmm2
; SSE2-NEXT: pcmpgtd %xmm1, %xmm2
; SSE2-NEXT: pcmpeqd %xmm1, %xmm0
; SSE2-NEXT: pshufd {{.*#+}} xmm1 = xmm0[1,1,3,3]
; SSE2-NEXT: pand %xmm2, %xmm1
; SSE2-NEXT: pshufd {{.*#+}} xmm0 = xmm2[1,1,3,3]
; SSE2-NEXT: por %xmm1, %xmm0
; SSE2-NEXT: pand {{.*}}(%rip), %xmm0
; SSE2-NEXT: retq
;
; SSE42-LABEL: cmpgt_zext_v2i64:
; SSE42: # %bb.0:
; SSE42-NEXT: pcmpgtq %xmm1, %xmm0
; SSE42-NEXT: psrlq $63, %xmm0
; SSE42-NEXT: retq
;
; AVX-LABEL: cmpgt_zext_v2i64:
; AVX: # %bb.0:
; AVX-NEXT: vpcmpgtq %xmm1, %xmm0, %xmm0
; AVX-NEXT: vpsrlq $63, %xmm0, %xmm0
; AVX-NEXT: retq
%cmp = icmp sgt <2 x i64> %a, %b
%zext = zext <2 x i1> %cmp to <2 x i64>
ret <2 x i64> %zext
}
; Test that we optimize a zext of a vector setcc ne zero where all bits but the
; lsb are known to be zero.
define <8 x i32> @cmpne_knownzeros_zext_v8i16_v8i32(<8 x i16> %x) {
; SSE2-LABEL: cmpne_knownzeros_zext_v8i16_v8i32:
; SSE2: # %bb.0:
; SSE2-NEXT: movdqa %xmm0, %xmm1
; SSE2-NEXT: psrlw $15, %xmm1
; SSE2-NEXT: pxor %xmm2, %xmm2
; SSE2-NEXT: movdqa %xmm1, %xmm0
; SSE2-NEXT: punpcklwd {{.*#+}} xmm0 = xmm0[0],xmm2[0],xmm0[1],xmm2[1],xmm0[2],xmm2[2],xmm0[3],xmm2[3]
; SSE2-NEXT: punpckhwd {{.*#+}} xmm1 = xmm1[4],xmm2[4],xmm1[5],xmm2[5],xmm1[6],xmm2[6],xmm1[7],xmm2[7]
; SSE2-NEXT: retq
;
; SSE42-LABEL: cmpne_knownzeros_zext_v8i16_v8i32:
; SSE42: # %bb.0:
; SSE42-NEXT: movdqa %xmm0, %xmm1
; SSE42-NEXT: psrlw $15, %xmm1
; SSE42-NEXT: pxor %xmm2, %xmm2
; SSE42-NEXT: pmovzxwd {{.*#+}} xmm0 = xmm1[0],zero,xmm1[1],zero,xmm1[2],zero,xmm1[3],zero
; SSE42-NEXT: punpckhwd {{.*#+}} xmm1 = xmm1[4],xmm2[4],xmm1[5],xmm2[5],xmm1[6],xmm2[6],xmm1[7],xmm2[7]
; SSE42-NEXT: retq
;
; AVX1-LABEL: cmpne_knownzeros_zext_v8i16_v8i32:
; AVX1: # %bb.0:
; AVX1-NEXT: vpsrlw $15, %xmm0, %xmm0
; AVX1-NEXT: vpxor %xmm1, %xmm1, %xmm1
; AVX1-NEXT: vpunpckhwd {{.*#+}} xmm1 = xmm0[4],xmm1[4],xmm0[5],xmm1[5],xmm0[6],xmm1[6],xmm0[7],xmm1[7]
; AVX1-NEXT: vpmovzxwd {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero
; AVX1-NEXT: vinsertf128 $1, %xmm1, %ymm0, %ymm0
; AVX1-NEXT: retq
;
; AVX2-LABEL: cmpne_knownzeros_zext_v8i16_v8i32:
; AVX2: # %bb.0:
; AVX2-NEXT: vpsrlw $15, %xmm0, %xmm0
; AVX2-NEXT: vpmovzxwd {{.*#+}} ymm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
; AVX2-NEXT: retq
%a = lshr <8 x i16> %x, <i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15, i16 15>
%b = icmp ne <8 x i16> %a, zeroinitializer
%c = zext <8 x i1> %b to <8 x i32>
ret <8 x i32> %c
}
define <8 x i32> @cmpne_knownzeros_zext_v8i32_v8i32(<8 x i32> %x) {
; SSE-LABEL: cmpne_knownzeros_zext_v8i32_v8i32:
; SSE: # %bb.0:
; SSE-NEXT: psrld $31, %xmm0
; SSE-NEXT: psrld $31, %xmm1
; SSE-NEXT: retq
;
; AVX1-LABEL: cmpne_knownzeros_zext_v8i32_v8i32:
; AVX1: # %bb.0:
; AVX1-NEXT: vpsrld $31, %xmm0, %xmm1
; AVX1-NEXT: vextractf128 $1, %ymm0, %xmm0
; AVX1-NEXT: vpsrld $31, %xmm0, %xmm0
; AVX1-NEXT: vinsertf128 $1, %xmm0, %ymm1, %ymm0
; AVX1-NEXT: retq
;
; AVX2-LABEL: cmpne_knownzeros_zext_v8i32_v8i32:
; AVX2: # %bb.0:
; AVX2-NEXT: vpsrld $31, %ymm0, %ymm0
; AVX2-NEXT: retq
%a = lshr <8 x i32> %x, <i32 31, i32 31, i32 31, i32 31, i32 31, i32 31, i32 31, i32 31>
%b = icmp ne <8 x i32> %a, zeroinitializer
%c = zext <8 x i1> %b to <8 x i32>
ret <8 x i32> %c
}
define <8 x i16> @cmpne_knownzeros_zext_v8i32_v8i16(<8 x i32> %x) {
; SSE2-LABEL: cmpne_knownzeros_zext_v8i32_v8i16:
; SSE2: # %bb.0:
; SSE2-NEXT: psrld $31, %xmm1
; SSE2-NEXT: psrld $31, %xmm0
; SSE2-NEXT: packuswb %xmm1, %xmm0
; SSE2-NEXT: retq
;
; SSE42-LABEL: cmpne_knownzeros_zext_v8i32_v8i16:
; SSE42: # %bb.0:
; SSE42-NEXT: psrld $31, %xmm1
; SSE42-NEXT: psrld $31, %xmm0
; SSE42-NEXT: packusdw %xmm1, %xmm0
; SSE42-NEXT: retq
;
; AVX1-LABEL: cmpne_knownzeros_zext_v8i32_v8i16:
; AVX1: # %bb.0:
; AVX1-NEXT: vextractf128 $1, %ymm0, %xmm1
; AVX1-NEXT: vpsrld $31, %xmm1, %xmm1
; AVX1-NEXT: vpsrld $31, %xmm0, %xmm0
; AVX1-NEXT: vpackusdw %xmm1, %xmm0, %xmm0
; AVX1-NEXT: vzeroupper
; AVX1-NEXT: retq
;
; AVX2-LABEL: cmpne_knownzeros_zext_v8i32_v8i16:
; AVX2: # %bb.0:
; AVX2-NEXT: vpsrld $31, %ymm0, %ymm0
; AVX2-NEXT: vextracti128 $1, %ymm0, %xmm1
; AVX2-NEXT: vpackusdw %xmm1, %xmm0, %xmm0
; AVX2-NEXT: vzeroupper
; AVX2-NEXT: retq
%a = lshr <8 x i32> %x, <i32 31, i32 31, i32 31, i32 31, i32 31, i32 31, i32 31, i32 31>
%b = icmp ne <8 x i32> %a, zeroinitializer
%c = zext <8 x i1> %b to <8 x i16>
ret <8 x i16> %c
}
; PR26697
define <4 x i32> @cmpeq_one_mask_bit(<4 x i32> %mask) {
; SSE-LABEL: cmpeq_one_mask_bit:
; SSE: # %bb.0:
; SSE-NEXT: psrad $31, %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: cmpeq_one_mask_bit:
; AVX: # %bb.0:
; AVX-NEXT: vpsrad $31, %xmm0, %xmm0
; AVX-NEXT: retq
%mask_signbit = and <4 x i32> %mask, <i32 2147483648, i32 2147483648, i32 2147483648, i32 2147483648>
%mask_bool = icmp ne <4 x i32> %mask_signbit, zeroinitializer
%mask_bool_ext = sext <4 x i1> %mask_bool to <4 x i32>
ret <4 x i32> %mask_bool_ext
}