[ComplexDeinterleaving] Propagate fast math flags to symmetric operations.

This is a simple patch to make sure fast math flags are propagated through to
the newly created symmetric operations, which can help with later
simplifications.

Differential Revision: https://reviews.llvm.org/D146409

1 files changed, 4 insertions, 4 deletions

diff --git a/llvm/lib/CodeGen/ComplexDeinterleavingPass.cpp b/llvm/lib/CodeGen/ComplexDeinterleavingPass.cpp
index fcc25d9..36fad9e 100644
--- a/llvm/lib/CodeGen/ComplexDeinterleavingPass.cpp
+++ b/llvm/lib/CodeGen/ComplexDeinterleavingPass.cpp
@@ -918,13 +918,13 @@ static Value *replaceSymmetricNode(ComplexDeinterleavingGraph::RawNodePtr Node,
 
   switch (I->getOpcode()) {
   case Instruction::FNeg:
-    return B.CreateFNeg(InputA);
+    return B.CreateFNegFMF(InputA, I);
   case Instruction::FAdd:
-    return B.CreateFAdd(InputA, InputB);
+    return B.CreateFAddFMF(InputA, InputB, I);
   case Instruction::FSub:
-    return B.CreateFSub(InputA, InputB);
+    return B.CreateFSubFMF(InputA, InputB, I);
   case Instruction::FMul:
-    return B.CreateFMul(InputA, InputB);
+    return B.CreateFMulFMF(InputA, InputB, I);
   }
 
   return nullptr;