From 7d71209912bb55856f34df7013382e6dd310983b Mon Sep 17 00:00:00 2001 From: Akira Hatanaka Date: Tue, 30 Oct 2012 19:23:25 +0000 Subject: [PATCH] Add definition of function MipsTargetLowering::passArgOnStack which emits nodes for passing a function call argument on a stack. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167041 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/Mips/MipsISelLowering.cpp | 18 ++++++++++++++++++ lib/Target/Mips/MipsISelLowering.h | 4 ++++ 2 files changed, 22 insertions(+) diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp index 4479c48a915..77f1bac8776 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 9e8c659829f..4f1ce0cd1c6 100644 --- a/lib/Target/Mips/MipsISelLowering.h +++ b/lib/Target/Mips/MipsISelLowering.h @@ -309,6 +309,10 @@ namespace llvm { DebugLoc dl, SelectionDAG &DAG, SmallVectorImpl &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 &InVals) const; -- 2.34.1