[llvm-commits] [llvm] r136663 - /llvm/trunk/lib/Target/X86/X86FastISel.cpp

[Nick Lewycky]

Author: nicholas
Date: Mon Aug  1 19:40:16 2011
New Revision: 136663

URL: http://llvm.org/viewvc/llvm-project?rev=136663&view=rev
Log:
Bail from FastISel when we encounter a volatile memset intrinsic. Patch by Ivan
Krasin!

Modified:
    llvm/trunk/lib/Target/X86/X86FastISel.cpp

Modified: llvm/trunk/lib/Target/X86/X86FastISel.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86FastISel.cpp?rev=136663&r1=136662&r2=136663&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86FastISel.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86FastISel.cpp Mon Aug  1 19:40:16 2011
@@ -1365,6 +1365,9 @@
   case Intrinsic::memset: {
     const MemSetInst &MSI = cast<MemSetInst>(I);
 
+    if (MSI.isVolatile())
+      return false;
+
     unsigned SizeWidth = Subtarget->is64Bit() ? 64 : 32;
     if (!MSI.getLength()->getType()->isIntegerTy(SizeWidth))
       return false;