diff options
Diffstat (limited to 'lib/Target/X86/X86InstrInfo.cpp')
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.cpp | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp index 75c6c2a755..2351cffdaa 100644 --- a/lib/Target/X86/X86InstrInfo.cpp +++ b/lib/Target/X86/X86InstrInfo.cpp @@ -4206,12 +4206,18 @@ static MachineInstr* foldPatchpoint(MachineFunction &MF, MF.CreateMachineInstr(TII.get(MI->getOpcode()), MI->getDebugLoc(), true); MachineInstrBuilder MIB(MF, NewMI); - bool isPatchPoint = MI->getOpcode() == TargetOpcode::PATCHPOINT; - // For PatchPoint, the call args are not foldable. - unsigned NumCallArgs = MI->getOperand(StartIdx+3).getImm(); - StartIdx = isPatchPoint ? - StartIdx + NumCallArgs + 5 : - StartIdx + 2; + switch (MI->getOpcode()) { + case TargetOpcode::STACKMAP: + StartIdx += 2; // Skip ID, nShadowBytes. + break; + case TargetOpcode::PATCHPOINT: + // Skip ID, numBytes, Target, numArgs. + // For PatchPoint, the call args are not foldable. + StartIdx += MI->getOperand(StartIdx+3).getImm() + 4; + break; + default: + llvm_unreachable("unexpected stackmap opcode"); + } // Return false if any operands requested for folding are not foldable (not // part of the stackmap's live values). |