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[inline asm] Fix a crasher for an invalid value type/register class.

Browse Source 
rdar://13731657

llvm-svn: 180226
This commit is contained in:
Chad Rosier 2013-04-24 22:53:10 +00:00
parent 4911adbdfd
commit f4418505b3
1 changed files with 11 additions and 4 deletions
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15
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
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@ -6171,10 +6171,17 @@ void SelectionDAGBuilder::visitInlineAsm(ImmutableCallSite CS) {
MatchedRegs.RegVTs.push_back(RegVT);
MachineRegisterInfo &RegInfo = DAG.getMachineFunction().getRegInfo();
for (unsigned i = 0, e = InlineAsm::getNumOperandRegisters(OpFlag);
i != e; ++i)
MatchedRegs.Regs.push_back
(RegInfo.createVirtualRegister(TLI.getRegClassFor(RegVT)));
i != e; ++i) {
if (const TargetRegisterClass *RC = TLI.getRegClassFor(RegVT))
MatchedRegs.Regs.push_back(RegInfo.createVirtualRegister(RC));
else {
LLVMContext &Ctx = *DAG.getContext();
Ctx.emitError(CS.getInstruction(), "inline asm error: This value"
" type register class is not natively supported!");
report_fatal_error("inline asm error: This value type register "
"class is not natively supported!");
}
}
// Use the produced MatchedRegs object to
MatchedRegs.getCopyToRegs(InOperandVal, DAG, getCurDebugLoc(),
Chain, &Flag, CS.getInstruction());