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[GVNSink] Add unary FNeg support to GVNSink pass

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Differential Revision: https://reviews.llvm.org/D63900

llvm-svn: 364678
This commit is contained in:
Cameron McInally 2019-06-28 19:57:31 +00:00
parent e48e888008
commit f51987bd8e
2 changed files with 3 additions and 1 deletions
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1
lib/Transforms/Scalar/GVNSink.cpp
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@ -441,6 +441,7 @@ public:
break; break;
case Instruction::Call: case Instruction::Call:
case Instruction::Invoke: case Instruction::Invoke:
case Instruction::FNeg:
case Instruction::Add: case Instruction::Add:
case Instruction::FAdd: case Instruction::FAdd:
case Instruction::Sub: case Instruction::Sub:

3
test/Transforms/GVNSink/fpmath.ll
View File

@ -1,8 +1,9 @@
; RUN: opt -S < %s -gvn-sink | FileCheck %s ; RUN: opt -S < %s -gvn-sink | FileCheck %s
; CHECK-LABEL: sink ; CHECK-LABEL: sink
; CHECK: fneg ; CHECK-NOT: fneg
; CHECK: = phi ; CHECK: = phi
; CHECK: fneg
define float @sink(float %a, float %b, i1 %cmp) { define float @sink(float %a, float %b, i1 %cmp) {
entry: entry:
br i1 %cmp, label %if.then, label %if.else br i1 %cmp, label %if.then, label %if.else