[PATCH] D65908: Support unary FNeg in LICM

Phabricator via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Aug 8 14:39:25 PDT 2019


This revision was automatically updated to reflect the committed changes.
Closed by commit rL368350: [LICM] Support unary FNeg in LICM (authored by mcinally, committed by ).

Changed prior to commit:
  https://reviews.llvm.org/D65908?vs=214007&id=214238#toc

Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D65908/new/

https://reviews.llvm.org/D65908

Files:
  llvm/trunk/lib/Transforms/Scalar/LICM.cpp
  llvm/trunk/test/Transforms/LICM/hoisting.ll


Index: llvm/trunk/test/Transforms/LICM/hoisting.ll
===================================================================
--- llvm/trunk/test/Transforms/LICM/hoisting.ll
+++ llvm/trunk/test/Transforms/LICM/hoisting.ll
@@ -127,9 +127,8 @@
 }
 
 ; CHECK: define void @test6(float %f)
-; CHECK: call
 ; CHECK: fneg
-; CHECK: call
+; CHECK: br label %for.body
 define void @test6(float %f) #2 {
 entry:
   br label %for.body
Index: llvm/trunk/lib/Transforms/Scalar/LICM.cpp
===================================================================
--- llvm/trunk/lib/Transforms/Scalar/LICM.cpp
+++ llvm/trunk/lib/Transforms/Scalar/LICM.cpp
@@ -1032,7 +1032,8 @@
 bool isHoistableAndSinkableInst(Instruction &I) {
   // Only these instructions are hoistable/sinkable.
   return (isa<LoadInst>(I) || isa<StoreInst>(I) || isa<CallInst>(I) ||
-          isa<FenceInst>(I) || isa<BinaryOperator>(I) || isa<CastInst>(I) ||
+          isa<FenceInst>(I) || isa<CastInst>(I) ||
+          isa<UnaryOperator>(I) || isa<BinaryOperator>(I) ||
           isa<SelectInst>(I) || isa<GetElementPtrInst>(I) || isa<CmpInst>(I) ||
           isa<InsertElementInst>(I) || isa<ExtractElementInst>(I) ||
           isa<ShuffleVectorInst>(I) || isa<ExtractValueInst>(I) ||


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