diff options
| -rw-r--r-- | lib/Target/Mips/MipsISelLowering.cpp | 18 | ||||
| -rw-r--r-- | lib/Target/Mips/MipsISelLowering.h | 4 |
2 files changed, 22 insertions, 0 deletions
diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp index 4479c48a91..77f1bac877 100644 --- a/lib/Target/Mips/MipsISelLowering.cpp +++ b/lib/Target/Mips/MipsISelLowering.cpp @@ -2676,6 +2676,24 @@ IsEligibleForTailCallOptimization(const MipsCC &MipsCCInfo, bool IsVarArg, return MipsCCInfo.reservedArgArea() == NextStackOffset; } +SDValue +MipsTargetLowering::passArgOnStack(SDValue StackPtr, unsigned Offset, + SDValue Chain, SDValue Arg, DebugLoc DL, + bool IsTailCall, SelectionDAG &DAG) const { + if (!IsTailCall) { + SDValue PtrOff = DAG.getNode(ISD::ADD, DL, getPointerTy(), StackPtr, + DAG.getIntPtrConstant(Offset)); + return DAG.getStore(Chain, DL, Arg, PtrOff, MachinePointerInfo(), false, + false, 0); + } + + MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo(); + int FI = MFI->CreateFixedObject(Arg.getValueSizeInBits() / 8, Offset, false); + SDValue FIN = DAG.getFrameIndex(FI, getPointerTy()); + return DAG.getStore(Chain, DL, Arg, FIN, MachinePointerInfo(), + /*isVolatile=*/ true, false, 0); +} + /// LowerCall - functions arguments are copied from virtual regs to /// (physical regs)/(stack frame), CALLSEQ_START and CALLSEQ_END are emitted. SDValue diff --git a/lib/Target/Mips/MipsISelLowering.h b/lib/Target/Mips/MipsISelLowering.h index 9e8c659829..4f1ce0cd1c 100644 --- a/lib/Target/Mips/MipsISelLowering.h +++ b/lib/Target/Mips/MipsISelLowering.h @@ -309,6 +309,10 @@ namespace llvm { DebugLoc dl, SelectionDAG &DAG, SmallVectorImpl<SDValue> &InVals) const; + SDValue passArgOnStack(SDValue StackPtr, unsigned Offset, SDValue Chain, + SDValue Arg, DebugLoc DL, bool IsTailCall, + SelectionDAG &DAG) const; + virtual SDValue LowerCall(TargetLowering::CallLoweringInfo &CLI, SmallVectorImpl<SDValue> &InVals) const; |