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Allow the use of functions as typeinfo in landingpad clauses

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This is one step towards supporting SEH filter functions in LLVM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221954 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Kleckner
2014-11-14 00:35:50 +00:00
parent 0dfb75c92a
commit 98c86d76df
9 changed files with 82 additions and 28 deletions
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13
lib/CodeGen/Analysis.cpp
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@ -109,15 +109,16 @@ void llvm::ComputeValueVTs(const TargetLowering &TLI, Type *Ty,
}
/// ExtractTypeInfo - Returns the type info, possibly bitcast, encoded in V.
GlobalVariable *llvm::ExtractTypeInfo(Value *V) {
GlobalValue *llvm::ExtractTypeInfo(Value *V) {
V = V->stripPointerCasts();
GlobalVariable *GV = dyn_cast<GlobalVariable>(V);
GlobalValue *GV = dyn_cast<GlobalValue>(V);
GlobalVariable *Var = dyn_cast<GlobalVariable>(V);
if (GV && GV->getName() == "llvm.eh.catch.all.value") {
assert(GV->hasInitializer() &&
if (Var && Var->getName() == "llvm.eh.catch.all.value") {
assert(Var->hasInitializer() &&
"The EH catch-all value must have an initializer");
Value *Init = GV->getInitializer();
GV = dyn_cast<GlobalVariable>(Init);
Value *Init = Var->getInitializer();
GV = dyn_cast<GlobalValue>(Init);
if (!GV) V = cast<ConstantPointerNull>(Init);
}