commit b5ba2eef2db5c9f95bc61331325e019065c0433d
author Benjamin Kramer <benny.kra@googlemail.com> Sun Nov 20 10:24:36 2011 +0000
committer Benjamin Kramer <benny.kra@googlemail.com> Sun Nov 20 10:24:36 2011 +0000
tree 17c3e378cddf17825e58240dc2fe341cbb93d4a9
parent 20df3953d33058b20c93b66d138760c7369123b0

SCEV: Actually set overflow flags on add expressions.

setFlags doesn't modify its arguments.

llvm-svn: 145007

llvm/lib/Analysis/ScalarEvolution.cpp

diff --git a/llvm/lib/Analysis/ScalarEvolution.cpp b/llvm/lib/Analysis/ScalarEvolution.cpp
index 77defa8..622b214 100644
--- a/llvm/lib/Analysis/ScalarEvolution.cpp
+++ b/llvm/lib/Analysis/ScalarEvolution.cpp
@@ -3601,9 +3601,9 @@
     SCEV::NoWrapFlags Flags = SCEV::FlagAnyWrap;
     OverflowingBinaryOperator *OBO = cast<OverflowingBinaryOperator>(V);
     if (OBO->hasNoSignedWrap())
-      setFlags(Flags, SCEV::FlagNSW);
+      Flags = setFlags(Flags, SCEV::FlagNSW);
     if (OBO->hasNoUnsignedWrap())
-      setFlags(Flags, SCEV::FlagNUW);
+      Flags = setFlags(Flags, SCEV::FlagNUW);
     return getAddExpr(AddOps, Flags);
   }
   case Instruction::Mul: {