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refactor some code to cut down on redundancy, no functionality change.

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llvm-svn: 112683
This commit is contained in:
Chris Lattner
2010-09-01 00:20:33 +00:00
parent 63dfb27647
commit 52b3c13149
1 changed files with 19 additions and 22 deletions
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41
clang/lib/CodeGen/TargetInfo.cpp
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@@ -1500,6 +1500,7 @@ classifyReturnType(QualType RetTy) const {
break;
}
const llvm::Type *HighPart = 0;
switch (Hi) {
// Memory was handled previously and X87 should
// never occur as a hi class.
@@ -1511,24 +1512,17 @@ classifyReturnType(QualType RetTy) const {
case NoClass:
break;
case Integer: {
const llvm::Type *HiType =
GetINTEGERTypeAtOffset(CGT.ConvertTypeRecursive(RetTy), 8, RetTy, 8);
if (Lo == NoClass) // Return HiType at offset 8 in memory.
return ABIArgInfo::getDirect(HiType, 8);
ResType = llvm::StructType::get(getVMContext(), ResType, HiType, NULL);
case Integer:
HighPart = GetINTEGERTypeAtOffset(CGT.ConvertTypeRecursive(RetTy),
8, RetTy, 8);
if (Lo == NoClass) // Return HighPart at offset 8 in memory.
return ABIArgInfo::getDirect(HighPart, 8);
break;
}
case SSE: {
const llvm::Type *HiType =
GetSSETypeAtOffset(CGT.ConvertTypeRecursive(RetTy), 8, RetTy, 8);
if (Lo == NoClass) // Return HiType at offset 8 in memory.
return ABIArgInfo::getDirect(HiType, 8);
ResType = llvm::StructType::get(getVMContext(), ResType, HiType,NULL);
case SSE:
HighPart = GetSSETypeAtOffset(CGT.ConvertTypeRecursive(RetTy), 8, RetTy, 8);
if (Lo == NoClass) // Return HighPart at offset 8 in memory.
return ABIArgInfo::getDirect(HighPart, 8);
break;
}
// AMD64-ABI 3.2.3p4: Rule 5. If the class is SSEUP, the eightbyte
// is passed in the upper half of the last used SSE register.
@@ -1547,15 +1541,18 @@ classifyReturnType(QualType RetTy) const {
// preceeded by X87. In such situations we follow gcc and pass the
// extra bits in an SSE reg.
if (Lo != X87) {
const llvm::Type *HiType =
GetSSETypeAtOffset(CGT.ConvertTypeRecursive(RetTy), 8, RetTy, 8);
if (Lo == NoClass) // Return HiType at offset 8 in memory.
return ABIArgInfo::getDirect(HiType, 8);
ResType = llvm::StructType::get(getVMContext(), ResType, HiType, NULL);
HighPart = GetSSETypeAtOffset(CGT.ConvertTypeRecursive(RetTy),
8, RetTy, 8);
if (Lo == NoClass) // Return HighPart at offset 8 in memory.
return ABIArgInfo::getDirect(HighPart, 8);
}
break;
}
// If a high part was specified, merge it together with the low part. It is
// known to pass in the high eightbyte of the result.
if (HighPart)
ResType = llvm::StructType::get(getVMContext(), ResType, HighPart, NULL);
return ABIArgInfo::getDirect(ResType);
}