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OutputArg: added an index of the original argument to match the change to

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InputArg in r165616.

This will enable us to get the actual type for both InputArg and OutputArg.

rdar://9932559


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167265 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Manman Ren
2012-11-01 23:49:58 +00:00
parent 4ac300dfac
commit 0a1544d2fd
3 changed files with 16 additions and 5 deletions
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14
include/llvm/Target/TargetCallingConv.h
View File

@@ -140,9 +140,19 @@ namespace ISD {
/// IsFixed - Is this a "fixed" value, ie not passed through a vararg "...".
bool IsFixed;
/// Index original Function's argument.
unsigned OrigArgIndex;
/// Offset in bytes of current output value relative to the beginning of
/// original argument. E.g. if argument was splitted into four 32 bit
/// registers, we got 4 OutputArgs with PartOffsets 0, 4, 8 and 12.
unsigned PartOffset;
OutputArg() : IsFixed(false) {}
OutputArg(ArgFlagsTy flags, EVT vt, bool isfixed)
: Flags(flags), IsFixed(isfixed) {
OutputArg(ArgFlagsTy flags, EVT vt, bool isfixed,
unsigned origIdx, unsigned partOffs)
: Flags(flags), IsFixed(isfixed), OrigArgIndex(origIdx),
PartOffset(partOffs) {
VT = vt.getSimpleVT();
}
};

5
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
View File

@@ -1255,7 +1255,7 @@ void SelectionDAGBuilder::visitRet(const ReturnInst &I) {
for (unsigned i = 0; i < NumParts; ++i) {
Outs.push_back(ISD::OutputArg(Flags, Parts[i].getValueType(),
/*isfixed=*/true));
/*isfixed=*/true, 0, 0));
OutVals.push_back(Parts[i]);
}
}
@@ -6540,7 +6540,8 @@ TargetLowering::LowerCallTo(TargetLowering::CallLoweringInfo &CLI) const {
for (unsigned j = 0; j != NumParts; ++j) {
// if it isn't first piece, alignment must be 1
ISD::OutputArg MyFlags(Flags, Parts[j].getValueType(),
i < CLI.NumFixedArgs);
i < CLI.NumFixedArgs,
i, j*Parts[j].getValueType().getStoreSize());
if (NumParts > 1 && j == 0)
MyFlags.Flags.setSplit();
else if (j != 0)

2
lib/CodeGen/SelectionDAG/TargetLowering.cpp
View File

@@ -1032,7 +1032,7 @@ void llvm::GetReturnInfo(Type* ReturnType, Attributes attr,
Flags.setZExt();
for (unsigned i = 0; i < NumParts; ++i)
Outs.push_back(ISD::OutputArg(Flags, PartVT, /*isFixed=*/true));
Outs.push_back(ISD::OutputArg(Flags, PartVT, /*isFixed=*/true, 0, 0));
}
}