commit 9adea01c9fb4838b042273dae7104441ceff1570
author Sanjay Patel <spatel@rotateright.com> Tue Jun 26 16:39:29 2018 +0000
committer Sanjay Patel <spatel@rotateright.com> Tue Jun 26 16:39:29 2018 +0000
tree 96fd5e564e7f2778db4d24d52bb8fb061a88f6c9
parent 3575f0c0b3787b97084c0e25c6d8fcb31e99ea62

[InstCombine] simplify code for urem fold; NFCI

llvm-svn: 335623

llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp

diff --git a/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp b/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
index 9833bbc..65046f2 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
@@ -1303,11 +1303,8 @@
   }
 
   // 1 urem X -> zext(X != 1)
-  if (match(Op0, m_One())) {
-    Value *Cmp = Builder.CreateICmpNE(Op1, Op0);
-    Value *Ext = Builder.CreateZExt(Cmp, Ty);
-    return replaceInstUsesWith(I, Ext);
-  }
+  if (match(Op0, m_One()))
+    return CastInst::CreateZExtOrBitCast(Builder.CreateICmpNE(Op1, Op0), Ty);
 
   // X urem C -> X < C ? X : X - C, where C >= signbit.
   if (match(Op1, m_Negative())) {