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[mips] Removed MipsISelLowering::analyzeFormalArguments() in favour of CCState::AnalyzeFormalArguments()

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Summary:
As with returns, we must be able to identify f128 arguments despite them
being lowered away. We do this with a pre-analyze step that builds a
vector and then we use this vector from the tablegen-erated code.

Reviewers: vmedic

Reviewed By: vmedic

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6081

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221461 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Sanders 2014-11-06 16:36:30 +00:00
parent 4396b44b9a
commit 20e3be7972
2 changed files with 8 additions and 33 deletions
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38
lib/Target/Mips/MipsISelLowering.cpp
View File

@ -140,12 +140,6 @@ public:
PreAnalyzeCallOperandsForF128(Outs, FuncArgs, CallNode);
}
// FIXME: Remove this from a public inteface ASAP. It's a temporary trap door
// to allow analyzeFormalArguments to be removed incrementally.
void
PreAnalyzeFormalArgumentsForF128_(const SmallVectorImpl<ISD::InputArg> &Ins) {
PreAnalyzeFormalArgumentsForF128(Ins);
}
// FIXME: Remove this from a public inteface ASAP. It's a temporary trap door
// to clean up after the above functions.
void ClearOriginalArgWasF128() { OriginalArgWasF128.clear(); }
@ -153,6 +147,13 @@ public:
SmallVectorImpl<CCValAssign> &locs, LLVMContext &C)
: CCState(CC, isVarArg, MF, locs, C) {}
void AnalyzeFormalArguments(const SmallVectorImpl<ISD::InputArg> &Ins,
CCAssignFn Fn) {
PreAnalyzeFormalArgumentsForF128(Ins);
CCState::AnalyzeFormalArguments(Ins, Fn);
OriginalArgWasF128.clear();
}
void AnalyzeCallResult(const SmallVectorImpl<ISD::InputArg> &Ins,
CCAssignFn Fn,
const TargetLowering::CallLoweringInfo &CLI) {
@ -2885,11 +2886,8 @@ MipsTargetLowering::LowerFormalArguments(SDValue Chain,
MipsCC MipsCCInfo(CallConv, Subtarget, CCInfo);
Function::const_arg_iterator FuncArg =
DAG.getMachineFunction().getFunction()->arg_begin();
bool UseSoftFloat = Subtarget.abiUsesSoftFloat();
CCInfo.PreAnalyzeFormalArgumentsForF128_(Ins);
MipsCCInfo.analyzeFormalArguments(Ins, UseSoftFloat, CCInfo);
CCInfo.ClearOriginalArgWasF128();
CCInfo.AnalyzeFormalArguments(Ins, CC_Mips_FixedArg);
MipsFI->setFormalArgInfo(CCInfo.getNextStackOffset(),
CCInfo.getInRegsParamsCount() > 0);
@ -3635,26 +3633,6 @@ void MipsTargetLowering::MipsCC::analyzeCallOperands(
}
}
void MipsTargetLowering::MipsCC::analyzeFormalArguments(
const SmallVectorImpl<ISD::InputArg> &Args, bool IsSoftFloat,
CCState &State) {
unsigned NumArgs = Args.size();
for (unsigned I = 0; I != NumArgs; ++I) {
MVT ArgVT = Args[I].VT;
ISD::ArgFlagsTy ArgFlags = Args[I].Flags;
if (!CC_Mips_FixedArg(I, ArgVT, ArgVT, CCValAssign::Full, ArgFlags, State))
continue;
#ifndef NDEBUG
dbgs() << "Formal Arg #" << I << " has unhandled type "
<< EVT(ArgVT).getEVTString();
#endif
llvm_unreachable(nullptr);
}
}
unsigned MipsTargetLowering::MipsCC::reservedArgArea() const {
return (Subtarget.isABI_O32() && (CallConv != CallingConv::Fast)) ? 16 : 0;
}

3
lib/Target/Mips/MipsISelLowering.h
View File

@ -372,9 +372,6 @@ namespace llvm {
const SDNode *CallNode,
std::vector<ArgListEntry> &FuncArgs,
CCState &State);
void analyzeFormalArguments(const SmallVectorImpl<ISD::InputArg> &Ins,
bool IsSoftFloat,
CCState &State);
/// reservedArgArea - The size of the area the caller reserves for
/// register arguments. This is 16-byte if ABI is O32.