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[FastISel] Fix patchpoint lowering to set the result register.

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Always update the value map with the result register (if there is one), for the
patchpoint instruction we created to replace the target-specific call
instruction.

llvm-svn: 213033
This commit is contained in:
Juergen Ributzka 2014-07-15 02:22:43 +00:00
parent 211ccabffb
commit 23901e5103
1 changed files with 6 additions and 5 deletions
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11
lib/CodeGen/SelectionDAG/FastISel.cpp
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@ -748,10 +748,11 @@ bool FastISel::SelectPatchpoint(const CallInst *I) {
SmallVector<MachineOperand, 32> Ops;
// Add an explicit result reg if we use the anyreg calling convention.
unsigned ResultReg = 0;
if (IsAnyRegCC && HasDef) {
ResultReg = createResultReg(TLI.getRegClassFor(MVT::i64));
Ops.push_back(MachineOperand::CreateReg(ResultReg, /*IsDef=*/true));
assert(CLI.NumResultRegs == 0 && "Unexpected result register.");
CLI.ResultReg = createResultReg(TLI.getRegClassFor(MVT::i64));
CLI.NumResultRegs = 1;
Ops.push_back(MachineOperand::CreateReg(CLI.ResultReg, /*IsDef=*/true));
}
// Add the <id> and <numBytes> constants.
@ -839,8 +840,8 @@ bool FastISel::SelectPatchpoint(const CallInst *I) {
// Inform the Frame Information that we have a patchpoint in this function.
FuncInfo.MF->getFrameInfo()->setHasPatchPoint();
if (ResultReg)
UpdateValueMap(I, ResultReg);
if (CLI.NumResultRegs)
UpdateValueMap(I, CLI.ResultReg, CLI.NumResultRegs);
return true;
}