Add support for removing invoke instructions
llvm-svn: 12858
diff --git a/llvm/lib/Transforms/Scalar/GCSE.cpp b/llvm/lib/Transforms/Scalar/GCSE.cpp
index bbefe81..7db7d4d 100644
--- a/llvm/lib/Transforms/Scalar/GCSE.cpp
+++ b/llvm/lib/Transforms/Scalar/GCSE.cpp
@@ -167,6 +167,13 @@
// anything special.
if (!isa<Constant>(V)) {
I->replaceAllUsesWith(V);
+
+ if (InvokeInst *II = dyn_cast<InvokeInst>(I)) {
+ // Removing an invoke instruction requires adding a branch to the normal
+ // destination and removing PHI node entries in the exception destination.
+ new BranchInst(II->getNormalDest(), II);
+ II->getUnwindDest()->removePredecessor(II->getParent());
+ }
// Erase the instruction from the program.
I->getParent()->getInstList().erase(I);
@@ -179,6 +186,13 @@
// Perform the replacement.
I->replaceAllUsesWith(C);
+ if (InvokeInst *II = dyn_cast<InvokeInst>(I)) {
+ // Removing an invoke instruction requires adding a branch to the normal
+ // destination and removing PHI node entries in the exception destination.
+ new BranchInst(II->getNormalDest(), II);
+ II->getUnwindDest()->removePredecessor(II->getParent());
+ }
+
// Erase the instruction from the program.
I->getParent()->getInstList().erase(I);