[llvm-commits] [llvm] r160757 - /llvm/trunk/lib/Transforms/IPO/GlobalOpt.cpp

[Nick Lewycky]

Author: nicholas
Date: Wed Jul 25 16:19:40 2012
New Revision: 160757

URL: http://llvm.org/viewvc/llvm-project?rev=160757&view=rev
Log:
It's not safe to blindly remove invoke instructions. This happens when we
encounter an invoke of an allocation function. This should fix the dragonegg
bootstrap. Testcase to follow, later.

Modified:
    llvm/trunk/lib/Transforms/IPO/GlobalOpt.cpp

Modified: llvm/trunk/lib/Transforms/IPO/GlobalOpt.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/IPO/GlobalOpt.cpp?rev=160757&r1=160756&r2=160757&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/IPO/GlobalOpt.cpp (original)
+++ llvm/trunk/lib/Transforms/IPO/GlobalOpt.cpp Wed Jul 25 16:19:40 2012
@@ -352,7 +352,8 @@
       return true;
     if (!V->hasOneUse())
       return false;
-    if (isa<LoadInst>(V) || isa<Argument>(V) || isa<GlobalValue>(V))
+    if (isa<LoadInst>(V) || isa<InvokeInst>(V) || isa<Argument>(V) ||
+        isa<GlobalValue>(V))
       return false;
     if (isAllocationFn(V))
       return true;