InstSimplify: Fold a hasNoSignedWrap() call into a match() expression

No functionality change intended, it's just a little more concise.

llvm-svn: 221281

diff --git a/llvm/lib/Analysis/InstructionSimplify.cpp b/llvm/lib/Analysis/InstructionSimplify.cpp
index 2e591cc..831ff2f 100644 (file)
--- a/llvm/lib/Analysis/InstructionSimplify.cpp
+++ b/llvm/lib/Analysis/InstructionSimplify.cpp
@@ -1408,8 +1408,7 @@ static Value *SimplifyAShrInst(Value *Op0, Value *Op1, bool isExact,
 
   // (X << A) >> A -> X
   Value *X;
-  if (match(Op0, m_Shl(m_Value(X), m_Specific(Op1))) &&
-      cast<OverflowingBinaryOperator>(Op0)->hasNoSignedWrap())
+  if (match(Op0, m_NSWShl(m_Value(X), m_Specific(Op1))))
     return X;
 
   // Arithmetic shifting an all-sign-bit value is a no-op.