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improve EH global handling, patch by Duncan Sands. 

llvm-svn: 36499
This commit is contained in:
Chris Lattner 2007-04-27 01:20:11 +00:00
parent 2c1bba0c0c
commit 784fe9dbbb
1 changed files with 10 additions and 6 deletions
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16
llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
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@ -2610,14 +2610,18 @@ SelectionDAGLowering::visitIntrinsicCall(CallInst &I, unsigned Intrinsic) {
// MachineModuleInfo.
std::vector<GlobalVariable *> TyInfo;
for (unsigned i = 3, N = I.getNumOperands(); i < N; ++i) {
ConstantExpr *CE = dyn_cast<ConstantExpr>(I.getOperand(i));
if (CE && CE->getOpcode() == Instruction::BitCast &&
isa<GlobalVariable>(CE->getOperand(0))) {
Constant *C = cast<Constant>(I.getOperand(i));
if (GlobalVariable *GV = dyn_cast<GlobalVariable>(C)) {
TyInfo.push_back(GV);
} else if (ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) {
assert(CE->getOpcode() == Instruction::BitCast &&
isa<GlobalVariable>(CE->getOperand(0))
&& "TypeInfo must be a global variable or NULL");
TyInfo.push_back(cast<GlobalVariable>(CE->getOperand(0)));
} else {
ConstantInt *CI = dyn_cast<ConstantInt>(I.getOperand(i));
assert(CI && CI->getZExtValue() == 0 &&
"TypeInfo must be a global variable typeinfo or NULL");
ConstantInt *CI = dyn_cast<ConstantInt>(C);
assert(CI && CI->isNullValue() &&
"TypeInfo must be a global variable or NULL");
TyInfo.push_back(NULL);
}
}