commit e5bd3cf0006b7f5ec79533a827f5645197d75d2c
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 e9ab76aa7953eb7d3b1fd79ba88b125b63059bef
parent 30b483c94001927b3593ed200e823104bab51660

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

Fixes PR13250.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164377 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/InstCombine/InstCombineMulDivRem.cpp

diff --git a/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp b/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
index 2a7182f..3361a1e 100644
--- a/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
+++ b/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())