[llvm-commits] [llvm] r122215 - /llvm/trunk/lib/Transforms/InstCombine/InstCombineCalls.cpp

[Mon P Wang]

Author: wangmp
Date: Sun Dec 19 19:05:30 2010
New Revision: 122215

URL: http://llvm.org/viewvc/llvm-project?rev=122215&view=rev
Log:
Avoid dropping the address space when InstCombine optimizes memset

Modified:
    llvm/trunk/lib/Transforms/InstCombine/InstCombineCalls.cpp

Modified: llvm/trunk/lib/Transforms/InstCombine/InstCombineCalls.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/InstCombine/InstCombineCalls.cpp?rev=122215&r1=122214&r2=122215&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/InstCombine/InstCombineCalls.cpp (original)
+++ llvm/trunk/lib/Transforms/InstCombine/InstCombineCalls.cpp Sun Dec 19 19:05:30 2010
@@ -234,7 +234,9 @@
     const Type *ITy = IntegerType::get(MI->getContext(), Len*8);  // n=1 -> i8.
     
     Value *Dest = MI->getDest();
-    Dest = Builder->CreateBitCast(Dest, PointerType::getUnqual(ITy));
+    unsigned DstAddrSp = cast<PointerType>(Dest->getType())->getAddressSpace();
+    Type *NewDstPtrTy = PointerType::get(ITy, DstAddrSp);
+    Dest = Builder->CreateBitCast(Dest, NewDstPtrTy);
 
     // Alignment 0 is identity for alignment 1 for memset, but not store.
     if (Alignment == 0) Alignment = 1;