forked from OSchip/llvm-project
30 lines
1.6 KiB
LLVM
30 lines
1.6 KiB
LLVM
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; RUN: opt %s -gvn -S -enable-gvn-memdep=false | FileCheck %s
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; RUN: opt %s -gvn -S -enable-gvn-memdep=true | FileCheck %s
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; Check that llvm.x86.avx2.gather.d.ps.256 intrinsic is not eliminated by GVN
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; with and without memory dependence info.
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; Function Attrs: nounwind readonly
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declare <8 x float> @llvm.x86.avx2.gather.d.ps.256(<8 x float>, i8*, <8 x i32>, <8 x float>, i8) #0
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; Function Attrs: nounwind
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define <8 x float> @foo1(i8* noalias readonly %arr.ptr, <8 x i32>* noalias readonly %vix.ptr, i8* noalias %t2.ptr) #1 {
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allocas:
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%vix = load <8 x i32>, <8 x i32>* %vix.ptr, align 4
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%t1.ptr = getelementptr i8, i8* %arr.ptr, i8 4
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%v1 = tail call <8 x float> @llvm.x86.avx2.gather.d.ps.256(<8 x float> undef, i8* %arr.ptr, <8 x i32> %vix, <8 x float> <float 0xFFFFFFFFE0000000, float 0xFFFFFFFFE0000000, float 0xFFFFFFFFE0000000, float 0xFFFFFFFFE0000000, float 0xFFFFFFFFE0000000, float 0xFFFFFFFFE0000000, float 0xFFFFFFFFE0000000, float 0xFFFFFFFFE0000000>, i8 1) #2
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store i8 1, i8* %t1.ptr, align 4
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%v2 = tail call <8 x float> @llvm.x86.avx2.gather.d.ps.256(<8 x float> undef, i8* %arr.ptr, <8 x i32> %vix, <8 x float> <float 0xFFFFFFFFE0000000, float 0xFFFFFFFFE0000000, float 0xFFFFFFFFE0000000, float 0xFFFFFFFFE0000000, float 0xFFFFFFFFE0000000, float 0xFFFFFFFFE0000000, float 0xFFFFFFFFE0000000, float 0xFFFFFFFFE0000000>, i8 1) #2
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%res = fadd <8 x float> %v1, %v2
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ret <8 x float> %res
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}
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; CHECK: foo1
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; CHECK: llvm.x86.avx2.gather.d.ps.256
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; CHECK: store
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; CHECK: llvm.x86.avx2.gather.d.ps.256
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