Add basic ability to setup call frame, and make procedure calls.
Hello world will compile and execute with this patch.
Patch by Reed Kotler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160651 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp
index 6b80e3f..7741f9f 100644
--- a/lib/Target/Mips/MipsISelLowering.cpp
+++ b/lib/Target/Mips/MipsISelLowering.cpp
@@ -2645,6 +2645,7 @@
SmallVector<ISD::InputArg, 32> &Ins = CLI.Ins;
SDValue InChain = CLI.Chain;
SDValue Callee = CLI.Callee;
+ SDValue CalleeSave = CLI.Callee;
bool &isTailCall = CLI.IsTailCall;
CallingConv::ID CallConv = CLI.CallConv;
bool isVarArg = CLI.IsVarArg;
@@ -2901,7 +2902,7 @@
SDVTList NodeTys = DAG.getVTList(MVT::Other, MVT::Glue);
SmallVector<SDValue, 8> Ops;
Ops.push_back(Chain);
- Ops.push_back(Callee);
+ Ops.push_back(Subtarget->inMips16Mode()? CalleeSave: Callee);
// Add argument registers to the end of the list so that they are
// known live into the call.
@@ -2909,6 +2910,8 @@
Ops.push_back(DAG.getRegister(RegsToPass[i].first,
RegsToPass[i].second.getValueType()));
+ if (Subtarget->inMips16Mode())
+ Ops.push_back(Callee);
// Add a register mask operand representing the call-preserved registers.
const TargetRegisterInfo *TRI = getTargetMachine().getRegisterInfo();
const uint32_t *Mask = TRI->getCallPreservedMask(CallConv);