diff options
| -rw-r--r-- | llvm/lib/Target/X86/InstSelectSimple.cpp | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/llvm/lib/Target/X86/InstSelectSimple.cpp b/llvm/lib/Target/X86/InstSelectSimple.cpp index 9306b2c3e0b..e0e641e1ac9 100644 --- a/llvm/lib/Target/X86/InstSelectSimple.cpp +++ b/llvm/lib/Target/X86/InstSelectSimple.cpp @@ -1500,6 +1500,9 @@ void ISel::doCall(const ValueRecord &Ret, MachineInstr *CallMI, unsigned Val = cast<ConstantInt>(Args[i].Val)->getRawValue(); addRegOffset(BuildMI(BB, X86::MOV32mi, 5), X86::ESP, ArgOffset).addImm(Val); + } else if (Args[i].Val && isa<ConstantPointerNull>(Args[i].Val)) { + addRegOffset(BuildMI(BB, X86::MOV32mi, 5), + X86::ESP, ArgOffset).addImm(0); } else { ArgReg = Args[i].Val ? getReg(Args[i].Val) : Args[i].Reg; addRegOffset(BuildMI(BB, X86::MOV32mr, 5), @@ -2984,13 +2987,19 @@ void ISel::visitStoreInst(StoreInst &I) { X86::MOV8mi, X86::MOV16mi, X86::MOV32mi }; unsigned Opcode = Opcodes[Class]; - if (AllocaFrameIdx != ~0U) { + if (AllocaFrameIdx != ~0U) addFrameReference(BuildMI(BB, Opcode, 5), AllocaFrameIdx).addImm(Val); - } else { + else addFullAddress(BuildMI(BB, Opcode, 5), BaseReg, Scale, IndexReg, Disp).addImm(Val); - } } + } else if (isa<ConstantPointerNull>(I.getOperand(0))) { + if (AllocaFrameIdx != ~0U) + addFrameReference(BuildMI(BB, X86::MOV32mi, 5), AllocaFrameIdx).addImm(0); + else + addFullAddress(BuildMI(BB, X86::MOV32mi, 5), + BaseReg, Scale, IndexReg, Disp).addImm(0); + } else if (ConstantBool *CB = dyn_cast<ConstantBool>(I.getOperand(0))) { if (AllocaFrameIdx != ~0U) addFrameReference(BuildMI(BB, X86::MOV8mi, 5), |
