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4a45626e2f
Summary: Use MemorySSA, if requested, to do less conservative memory dependency checking. This change doesn't enable the MemorySSA enhanced EarlyCSE in the default pipelines, so should be NFC. Reviewers: dberlin, sanjoy, reames, majnemer Subscribers: mcrosier, llvm-commits Differential Revision: http://reviews.llvm.org/D19821 llvm-svn: 280279
20 lines
502 B
LLVM
20 lines
502 B
LLVM
; RUN: opt -early-cse -S < %s | FileCheck %s
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; RUN: opt -basicaa -early-cse-memssa -S < %s | FileCheck %s
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declare void @use(i1)
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define void @test1(float %x, float %y) {
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entry:
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%cmp1 = fcmp nnan oeq float %y, %x
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%cmp2 = fcmp oeq float %x, %y
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call void @use(i1 %cmp1)
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call void @use(i1 %cmp2)
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ret void
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}
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; CHECK-LABEL: define void @test1(
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; CHECK: %[[cmp:.*]] = fcmp oeq float %y, %x
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; CHECK-NEXT: call void @use(i1 %[[cmp]])
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; CHECK-NEXT: call void @use(i1 %[[cmp]])
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; CHECK-NEXT: ret void
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