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3dc20a0272
This is actually a deficiency in ValueTracking's matchSelectPattern(), but a codegen test is the simplest way to expose the bug. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@285429 91177308-0d34-0410-b5e6-96231b3b80d8
60 lines
2.2 KiB
LLVM
60 lines
2.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s
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; FIXME: These are unsigned min/max ops.
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define <4 x i32> @umax_vec1(<4 x i32> %x) {
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; CHECK-LABEL: umax_vec1:
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; CHECK: # BB#0:
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; CHECK-NEXT: vpxor %xmm1, %xmm1, %xmm1
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; CHECK-NEXT: vpcmpgtd %xmm0, %xmm1, %xmm1
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; CHECK-NEXT: vmovaps {{.*#+}} xmm2 = [2147483647,2147483647,2147483647,2147483647]
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; CHECK-NEXT: vblendvps %xmm1, %xmm0, %xmm2, %xmm0
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; CHECK-NEXT: retq
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;
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%cmp = icmp slt <4 x i32> %x, zeroinitializer
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%sel = select <4 x i1> %cmp, <4 x i32> %x, <4 x i32> <i32 2147483647, i32 2147483647, i32 2147483647, i32 2147483647>
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ret <4 x i32> %sel
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}
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define <4 x i32> @umax_vec2(<4 x i32> %x) {
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; CHECK-LABEL: umax_vec2:
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; CHECK: # BB#0:
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; CHECK-NEXT: vpcmpeqd %xmm1, %xmm1, %xmm1
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; CHECK-NEXT: vpcmpgtd %xmm1, %xmm0, %xmm1
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; CHECK-NEXT: vblendvps %xmm1, {{.*}}(%rip), %xmm0, %xmm0
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; CHECK-NEXT: retq
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;
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%cmp = icmp sgt <4 x i32> %x, <i32 -1, i32 -1, i32 -1, i32 -1>
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%sel = select <4 x i1> %cmp, <4 x i32> <i32 2147483648, i32 2147483648, i32 2147483648, i32 2147483648>, <4 x i32> %x
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ret <4 x i32> %sel
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}
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define <4 x i32> @umin_vec1(<4 x i32> %x) {
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; CHECK-LABEL: umin_vec1:
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; CHECK: # BB#0:
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; CHECK-NEXT: vpxor %xmm1, %xmm1, %xmm1
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; CHECK-NEXT: vpcmpgtd %xmm0, %xmm1, %xmm1
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; CHECK-NEXT: vblendvps %xmm1, {{.*}}(%rip), %xmm0, %xmm0
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; CHECK-NEXT: retq
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;
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%cmp = icmp slt <4 x i32> %x, zeroinitializer
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%sel = select <4 x i1> %cmp, <4 x i32> <i32 2147483647, i32 2147483647, i32 2147483647, i32 2147483647>, <4 x i32> %x
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ret <4 x i32> %sel
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}
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define <4 x i32> @umin_vec2(<4 x i32> %x) {
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; CHECK-LABEL: umin_vec2:
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; CHECK: # BB#0:
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; CHECK-NEXT: vpcmpeqd %xmm1, %xmm1, %xmm1
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; CHECK-NEXT: vpcmpgtd %xmm1, %xmm0, %xmm1
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; CHECK-NEXT: vmovaps {{.*#+}} xmm2 = [2147483648,2147483648,2147483648,2147483648]
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; CHECK-NEXT: vblendvps %xmm1, %xmm0, %xmm2, %xmm0
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; CHECK-NEXT: retq
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;
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%cmp = icmp sgt <4 x i32> %x, <i32 -1, i32 -1, i32 -1, i32 -1>
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%sel = select <4 x i1> %cmp, <4 x i32> %x, <4 x i32> <i32 2147483648, i32 2147483648, i32 2147483648, i32 2147483648>
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ret <4 x i32> %sel
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}
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