[llvm-commits] [llvm] r85495 - /llvm/trunk/lib/Transforms/IPO/GlobalOpt.cpp

[Chris Lattner]

Author: lattner
Date: Thu Oct 29 00:51:50 2009
New Revision: 85495

URL: http://llvm.org/viewvc/llvm-project?rev=85495&view=rev
Log:
just for the hell of it, allow globalopt to statically evaluate 
static constructors with indirect gotos :)

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=85495&r1=85494&r2=85495&view=diff

==============================================================================
--- llvm/trunk/lib/Transforms/IPO/GlobalOpt.cpp (original)
+++ llvm/trunk/lib/Transforms/IPO/GlobalOpt.cpp Thu Oct 29 00:51:50 2009
@@ -2341,6 +2341,12 @@
           dyn_cast<ConstantInt>(getVal(Values, SI->getCondition()));
         if (!Val) return false;  // Cannot determine.
         NewBB = SI->getSuccessor(SI->findCaseValue(Val));
+      } else if (IndirectBrInst *IBI = dyn_cast<IndirectBrInst>(CurInst)) {
+        Value *Val = getVal(Values, IBI->getAddress())->stripPointerCasts();
+        if (BlockAddress *BA = dyn_cast<BlockAddress>(Val))
+          NewBB = BA->getBasicBlock();
+        else
+          return false;  // Cannot determine.
       } else if (ReturnInst *RI = dyn_cast<ReturnInst>(CurInst)) {
         if (RI->getNumOperands())
           RetVal = getVal(Values, RI->getOperand(0));