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Remove the now-dead llvm.eh.exception and llvm.eh.selector intrinsics.

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llvm-svn: 149331
This commit is contained in:
Bill Wendling 2012-01-31 01:58:48 +00:00
parent 0e5559bc4d
commit fadeb75339
4 changed files with 0 additions and 100 deletions
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4
include/llvm/Intrinsics.td
View File

@ -304,10 +304,6 @@ let Properties = [IntrNoMem] in {
//===------------------ Exception Handling Intrinsics----------------------===//
//
def int_eh_exception : Intrinsic<[llvm_ptr_ty], [], [IntrReadMem]>;
def int_eh_selector : Intrinsic<[llvm_i32_ty],
[llvm_ptr_ty, llvm_ptr_ty, llvm_vararg_ty]>;
def int_eh_resume : Intrinsic<[], [llvm_ptr_ty, llvm_i32_ty], [Throws]>;
// The result of eh.typeid.for depends on the enclosing function, but inside a
// given function it is 'const' and may be CSE'd etc.

5
lib/CodeGen/IntrinsicLowering.cpp
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@ -448,11 +448,6 @@ void IntrinsicLowering::LowerIntrinsicCall(CallInst *CI) {
case Intrinsic::dbg_declare:
break; // Simply strip out debugging intrinsics
case Intrinsic::eh_exception:
case Intrinsic::eh_selector:
CI->replaceAllUsesWith(Constant::getNullValue(CI->getType()));
break;
case Intrinsic::eh_typeid_for:
// Return something different to eh_selector.
CI->replaceAllUsesWith(ConstantInt::get(CI->getType(), 1));

54
lib/CodeGen/SelectionDAG/FastISel.cpp
View File

@ -630,60 +630,6 @@ bool FastISel::SelectCall(const User *I) {
}
return true;
}
case Intrinsic::eh_exception: {
EVT VT = TLI.getValueType(Call->getType());
if (TLI.getOperationAction(ISD::EXCEPTIONADDR, VT)!=TargetLowering::Expand)
break;
assert(FuncInfo.MBB->isLandingPad() &&
"Call to eh.exception not in landing pad!");
unsigned Reg = TLI.getExceptionAddressRegister();
const TargetRegisterClass *RC = TLI.getRegClassFor(VT);
unsigned ResultReg = createResultReg(RC);
BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, TII.get(TargetOpcode::COPY),
ResultReg).addReg(Reg);
UpdateValueMap(Call, ResultReg);
return true;
}
case Intrinsic::eh_selector: {
EVT VT = TLI.getValueType(Call->getType());
if (TLI.getOperationAction(ISD::EHSELECTION, VT) != TargetLowering::Expand)
break;
if (FuncInfo.MBB->isLandingPad())
AddCatchInfo(*Call, &FuncInfo.MF->getMMI(), FuncInfo.MBB);
else {
#ifndef NDEBUG
FuncInfo.CatchInfoLost.insert(Call);
#endif
// FIXME: Mark exception selector register as live in. Hack for PR1508.
unsigned Reg = TLI.getExceptionSelectorRegister();
if (Reg) FuncInfo.MBB->addLiveIn(Reg);
}
unsigned Reg = TLI.getExceptionSelectorRegister();
EVT SrcVT = TLI.getPointerTy();
const TargetRegisterClass *RC = TLI.getRegClassFor(SrcVT);
unsigned ResultReg = createResultReg(RC);
BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL, TII.get(TargetOpcode::COPY),
ResultReg).addReg(Reg);
bool ResultRegIsKill = hasTrivialKill(Call);
// Cast the register to the type of the selector.
if (SrcVT.bitsGT(MVT::i32))
ResultReg = FastEmit_r(SrcVT.getSimpleVT(), MVT::i32, ISD::TRUNCATE,
ResultReg, ResultRegIsKill);
else if (SrcVT.bitsLT(MVT::i32))
ResultReg = FastEmit_r(SrcVT.getSimpleVT(), MVT::i32,
ISD::SIGN_EXTEND, ResultReg, ResultRegIsKill);
if (ResultReg == 0)
// Unhandled operand. Halt "fast" selection and bail.
return false;
UpdateValueMap(Call, ResultReg);
return true;
}
case Intrinsic::objectsize: {
ConstantInt *CI = cast<ConstantInt>(Call->getArgOperand(1));
unsigned long long Res = CI->isZero() ? -1ULL : 0;

37
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
View File

@ -4686,43 +4686,6 @@ SelectionDAGBuilder::visitIntrinsicCall(const CallInst &I, unsigned Intrinsic) {
MMI.setVariableDbgInfo(Variable, FI, DI.getDebugLoc());
return 0;
}
case Intrinsic::eh_exception: {
// Insert the EXCEPTIONADDR instruction.
assert(FuncInfo.MBB->isLandingPad() &&
"Call to eh.exception not in landing pad!");
SDVTList VTs = DAG.getVTList(TLI.getPointerTy(), MVT::Other);
SDValue Ops[1];
Ops[0] = DAG.getRoot();
SDValue Op = DAG.getNode(ISD::EXCEPTIONADDR, dl, VTs, Ops, 1);
setValue(&I, Op);
DAG.setRoot(Op.getValue(1));
return 0;
}
case Intrinsic::eh_selector: {
MachineBasicBlock *CallMBB = FuncInfo.MBB;
MachineModuleInfo &MMI = DAG.getMachineFunction().getMMI();
if (CallMBB->isLandingPad())
AddCatchInfo(I, &MMI, CallMBB);
else {
#ifndef NDEBUG
FuncInfo.CatchInfoLost.insert(&I);
#endif
// FIXME: Mark exception selector register as live in. Hack for PR1508.
unsigned Reg = TLI.getExceptionSelectorRegister();
if (Reg) FuncInfo.MBB->addLiveIn(Reg);
}
// Insert the EHSELECTION instruction.
SDVTList VTs = DAG.getVTList(TLI.getPointerTy(), MVT::Other);
SDValue Ops[2];
Ops[0] = getValue(I.getArgOperand(0));
Ops[1] = getRoot();
SDValue Op = DAG.getNode(ISD::EHSELECTION, dl, VTs, Ops, 2);
DAG.setRoot(Op.getValue(1));
setValue(&I, DAG.getSExtOrTrunc(Op, dl, MVT::i32));
return 0;
}
case Intrinsic::eh_typeid_for: {
// Find the type id for the given typeinfo.