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[mips] Fix MipsTargetLowering::LowerCall to pass fp128 arguments in floating

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point registers.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176521 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka 2013-03-05 22:20:28 +00:00
parent 5fdee6d2b5
commit cb2eafdfa3
3 changed files with 28 additions and 6 deletions
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17
lib/Target/Mips/MipsISelLowering.cpp
View File

@ -3362,7 +3362,9 @@ MipsTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
getTargetMachine(), ArgLocs, *DAG.getContext());
MipsCC MipsCCInfo(CallConv, IsO32, CCInfo);
MipsCCInfo.analyzeCallOperands(Outs, isVarArg);
MipsCCInfo.analyzeCallOperands(Outs, isVarArg,
getTargetMachine().Options.UseSoftFloat,
Callee.getNode(), CLI.Args);
// Get a count of how many bytes are to be pushed on the stack.
unsigned NextStackOffset = CCInfo.getNextStackOffset();
@ -3421,7 +3423,8 @@ MipsTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
case CCValAssign::Full:
if (VA.isRegLoc()) {
if ((ValVT == MVT::f32 && LocVT == MVT::i32) ||
(ValVT == MVT::f64 && LocVT == MVT::i64))
(ValVT == MVT::f64 && LocVT == MVT::i64) ||
(ValVT == MVT::i64 && LocVT == MVT::f64))
Arg = DAG.getNode(ISD::BITCAST, dl, LocVT, Arg);
else if (ValVT == MVT::f64 && LocVT == MVT::i32) {
SDValue Lo = DAG.getNode(MipsISD::ExtractElementF64, dl, MVT::i32,
@ -4144,7 +4147,8 @@ MipsTargetLowering::MipsCC::MipsCC(CallingConv::ID CC, bool IsO32_,
void MipsTargetLowering::MipsCC::
analyzeCallOperands(const SmallVectorImpl<ISD::OutputArg> &Args,
bool IsVarArg) {
bool IsVarArg, bool IsSoftFloat, const SDNode *CallNode,
std::vector<ArgListEntry> &FuncArgs) {
assert((CallConv != CallingConv::Fast || !IsVarArg) &&
"CallingConv::Fast shouldn't be used for vararg functions.");
@ -4163,8 +4167,11 @@ analyzeCallOperands(const SmallVectorImpl<ISD::OutputArg> &Args,
if (IsVarArg && !Args[I].IsFixed)
R = VarFn(I, ArgVT, ArgVT, CCValAssign::Full, ArgFlags, CCInfo);
else
R = FixedFn(I, ArgVT, ArgVT, CCValAssign::Full, ArgFlags, CCInfo);
else {
MVT RegVT = getRegVT(ArgVT, FuncArgs[Args[I].OrigArgIndex].Ty, CallNode,
IsSoftFloat);
R = FixedFn(I, ArgVT, RegVT, CCValAssign::Full, ArgFlags, CCInfo);
}
if (R) {
#ifndef NDEBUG

4
lib/Target/Mips/MipsISelLowering.h
View File

@ -205,7 +205,9 @@ namespace llvm {
MipsCC(CallingConv::ID CallConv, bool IsO32, CCState &Info);
void analyzeCallOperands(const SmallVectorImpl<ISD::OutputArg> &Outs,
bool IsVarArg);
bool IsVarArg, bool IsSoftFloat,
const SDNode *CallNode,
std::vector<ArgListEntry> &FuncArgs);
void analyzeFormalArguments(const SmallVectorImpl<ISD::InputArg> &Ins,
bool IsSoftFloat,
Function::const_arg_iterator FuncArg);

13
test/CodeGen/Mips/mips64-call.ll
View File

@ -11,3 +11,16 @@ entry:
store fp128 %a0, fp128* @gld0, align 16
ret void
}
; CHECK: foo1
; CHECK: ldc1 $f13, 8(${{[0-9]+}})
; CHECK: ldc1 $f12, 0(${{[0-9]+}})
define void @foo1() {
entry:
%0 = load fp128* @gld0, align 16
tail call void @foo2(fp128 %0)
ret void
}
declare void @foo2(fp128)