Add definition of function MipsTargetLowering::passArgOnStack which emits nodes
for passing a function call argument on a stack.
llvm-svn: 167041
diff --git a/llvm/lib/Target/Mips/MipsISelLowering.cpp b/llvm/lib/Target/Mips/MipsISelLowering.cpp
index 4479c48..77f1bac 100644
--- a/llvm/lib/Target/Mips/MipsISelLowering.cpp
+++ b/llvm/lib/Target/Mips/MipsISelLowering.cpp
@@ -2676,6 +2676,24 @@
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/llvm/lib/Target/Mips/MipsISelLowering.h b/llvm/lib/Target/Mips/MipsISelLowering.h
index 9e8c659..4f1ce0c 100644
--- a/llvm/lib/Target/Mips/MipsISelLowering.h
+++ b/llvm/lib/Target/Mips/MipsISelLowering.h
@@ -309,6 +309,10 @@
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;