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use ArgOperand accessors

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and CallInst for getting hold
of the intrinsic's arguments

simplify along the way (at least for me this is much more legible now)
Bill, Baldrick or Anton, please review\!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106838 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Gabor Greif 2010-06-25 11:25:30 +00:00
parent c13055db26
commit 2bf4b3be5c
1 changed files with 14 additions and 9 deletions
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23
lib/CodeGen/DwarfEHPrepare.cpp
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@ -22,6 +22,7 @@
#include "llvm/Analysis/Dominators.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/Support/CallSite.h"
#include "llvm/Target/TargetLowering.h"
#include "llvm/Transforms/Utils/BasicBlockUtils.h"
#include "llvm/Transforms/Utils/PromoteMemToReg.h"
@ -193,8 +194,8 @@ FunctionPass *llvm::createDwarfEHPass(const TargetMachine *tm, bool fast) {
bool DwarfEHPrepare::HasCatchAllInSelector(IntrinsicInst *II) {
if (!EHCatchAllValue) return false;
unsigned OpIdx = II->getNumOperands() - 1;
GlobalVariable *GV = dyn_cast<GlobalVariable>(II->getOperand(OpIdx));
unsigned ArgIdx = II->getNumArgOperands() - 1;
GlobalVariable *GV = dyn_cast<GlobalVariable>(II->getArgOperand(ArgIdx));
return GV == EHCatchAllValue;
}
@ -386,16 +387,20 @@ bool DwarfEHPrepare::HandleURoRInvokes() {
// Use the exception object pointer and the personality function
// from the original selector.
Args.push_back(II->getArgOperand(0)); // Exception object pointer.
Args.push_back(II->getArgOperand(1)); // Personality function.
CallSite CS(II);
IntrinsicInst::op_iterator I = CS.arg_begin();
Args.push_back(*I++); // Exception object pointer.
Args.push_back(*I++); // Personality function.
unsigned I = 3;
unsigned E = II->getNumOperands() -
(isa<ConstantInt>(II->getOperand(II->getNumOperands() - 1)) ? 1 : 0);
IntrinsicInst::op_iterator E = CS.arg_end();
IntrinsicInst::op_iterator B = prior(E);
// Exclude last argument if it is an integer.
if (isa<ConstantInt>(B)) E = B;
// Add in any filter IDs.
for (; I < E; ++I)
Args.push_back(II->getOperand(I));
for (; I != E; ++I)
Args.push_back(*I);
Args.push_back(EHCatchAllValue->getInitializer()); // Catch-all indicator.