derek.holloway
7502bf64a4
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37 lines
1.2 KiB
LLVM
37 lines
1.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -S -passes=early-cse -earlycse-debug-hash | FileCheck %s
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; RUN: opt < %s -S -passes='early-cse<memssa>' | FileCheck %s
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; Ensure we don't simplify away additions vectors of +0.0's (same as scalars).
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define <4 x float> @fV( <4 x float> %a) {
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; CHECK-LABEL: @fV(
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; CHECK-NEXT: [[B:%.*]] = fadd <4 x float> [[A:%.*]], zeroinitializer
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; CHECK-NEXT: ret <4 x float> [[B]]
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;
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%b = fadd <4 x float> %a, <float 0.0,float 0.0,float 0.0,float 0.0>
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ret <4 x float> %b
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}
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define <4 x float> @fW( <4 x float> %a) {
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; CHECK-LABEL: @fW(
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; CHECK-NEXT: ret <4 x float> [[A:%.*]]
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;
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%b = fadd <4 x float> %a, <float -0.0,float -0.0,float -0.0,float -0.0>
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ret <4 x float> %b
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}
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; CSE unary fnegs.
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define void @fX(ptr%p, <4 x float> %a) {
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; CHECK-LABEL: @fX(
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; CHECK-NEXT: [[X:%.*]] = fneg <4 x float> [[A:%.*]]
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; CHECK-NEXT: store volatile <4 x float> [[X]], ptr [[P:%.*]], align 16
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; CHECK-NEXT: store volatile <4 x float> [[X]], ptr [[P]], align 16
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; CHECK-NEXT: ret void
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;
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%x = fneg <4 x float> %a
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%y = fneg <4 x float> %a
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store volatile <4 x float> %x, ptr %p
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store volatile <4 x float> %y, ptr %p
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ret void
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}
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