[llvm] r364678 - [GVNSink] Add unary FNeg support to GVNSink pass

[Cameron McInally via llvm-commits]

Author: mcinally
Date: Fri Jun 28 12:57:31 2019
New Revision: 364678

URL: http://llvm.org/viewvc/llvm-project?rev=364678&view=rev
Log:
[GVNSink] Add unary FNeg support to GVNSink pass

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

Modified:
    llvm/trunk/lib/Transforms/Scalar/GVNSink.cpp
    llvm/trunk/test/Transforms/GVNSink/fpmath.ll

Modified: llvm/trunk/lib/Transforms/Scalar/GVNSink.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/GVNSink.cpp?rev=364678&r1=364677&r2=364678&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/GVNSink.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/GVNSink.cpp Fri Jun 28 12:57:31 2019
@@ -441,6 +441,7 @@ public:
       break;
     case Instruction::Call:
     case Instruction::Invoke:
+    case Instruction::FNeg:
     case Instruction::Add:
     case Instruction::FAdd:
     case Instruction::Sub:

Modified: llvm/trunk/test/Transforms/GVNSink/fpmath.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/GVNSink/fpmath.ll?rev=364678&r1=364677&r2=364678&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/GVNSink/fpmath.ll (original)
+++ llvm/trunk/test/Transforms/GVNSink/fpmath.ll Fri Jun 28 12:57:31 2019
@@ -1,8 +1,9 @@
 ; RUN: opt -S < %s -gvn-sink | FileCheck %s
 
 ; CHECK-LABEL: sink
-; CHECK: fneg
+; CHECK-NOT: fneg
 ; CHECK: = phi
+; CHECK: fneg
 define float @sink(float %a, float %b, i1 %cmp) {
 entry:
   br i1 %cmp, label %if.then, label %if.else