commit efb4d34bcf83191cac46e346af323b5a8b21c823
author Benjamin Kramer <benny.kra@googlemail.com> Fri Sep 21 16:26:41 2012 +0000
committer Benjamin Kramer <benny.kra@googlemail.com> Fri Sep 21 16:26:41 2012 +0000
tree ecc83395b99d3d209697ea46a71359b800177e10
parent 29ebecb11ab538cab4247a064fba51e61f0a2b9c

InstCombine: Make sure we use the pre-zext type when creating a constant of a value that is zext'd.

Fixes PR13250.

llvm-svn: 164377

llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp

diff --git a/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp b/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
index 2a7182f..3361a1e 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
@@ -477,7 +477,8 @@
     if (match(Op1, m_Shl(m_Power2(CI), m_Value(N))) ||
         match(Op1, m_ZExt(m_Shl(m_Power2(CI), m_Value(N))))) {
       if (*CI != 1)
-        N = Builder->CreateAdd(N, ConstantInt::get(I.getType(),CI->logBase2()));
+        N = Builder->CreateAdd(N,
+                               ConstantInt::get(N->getType(), CI->logBase2()));
       if (ZExtInst *Z = dyn_cast<ZExtInst>(Op1))
         N = Builder->CreateZExt(N, Z->getDestTy());
       if (I.isExact())