[cfe-commits] r116687 - /cfe/trunk/lib/CodeGen/TargetInfo.cpp
Bill Wendling
isanbard at gmail.com
Sun Oct 17 00:58:46 PDT 2010
Author: void
Date: Sun Oct 17 02:58:46 2010
New Revision: 116687
URL: http://llvm.org/viewvc/llvm-project?rev=116687&view=rev
Log:
Temporarily revert r116684. It was causing failures with
Clang :: CodeGen/x86_32-arguments-darwin.c
Clang :: CodeGen/x86_32-arguments-linux.c
Modified:
cfe/trunk/lib/CodeGen/TargetInfo.cpp
Modified: cfe/trunk/lib/CodeGen/TargetInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/TargetInfo.cpp?rev=116687&r1=116686&r2=116687&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/TargetInfo.cpp (original)
+++ cfe/trunk/lib/CodeGen/TargetInfo.cpp Sun Oct 17 02:58:46 2010
@@ -331,16 +331,6 @@
ABIArgInfo::getExtend() : ABIArgInfo::getDirect());
}
-/// UseX86_MMXType - Return true if this is an MMX type that should use the special
-/// x86_mmx type.
-bool UseX86_MMXType(const llvm::Type *IRType) {
- // If the type is an MMX type <2 x i32>, <4 x i16>, or <8 x i8>, use the
- // special x86_mmx type.
- return IRType->isVectorTy() && IRType->getPrimitiveSizeInBits() == 64 &&
- cast<llvm::VectorType>(IRType)->getElementType()->isIntegerTy() &&
- IRType->getScalarSizeInBits() != 64;
-}
-
//===----------------------------------------------------------------------===//
// X86-32 ABI Implementation
//===----------------------------------------------------------------------===//
@@ -668,13 +658,6 @@
return ABIArgInfo::getDirect(llvm::IntegerType::get(getVMContext(),
Size));
}
-
- const llvm::Type *IRType = CGT.ConvertTypeRecursive(Ty);
- if (UseX86_MMXType(IRType)) {
- ABIArgInfo AAI = ABIArgInfo::getDirect(IRType);
- AAI.setCoerceToType(llvm::Type::getX86_MMXTy(getVMContext()));
- return AAI;
- }
return ABIArgInfo::getDirect();
}
@@ -831,10 +814,8 @@
ABIArgInfo classifyReturnType(QualType RetTy) const;
- ABIArgInfo classifyArgumentType(QualType Ty,
- unsigned &neededInt,
- unsigned &neededSSE,
- unsigned &neededMMX) const;
+ ABIArgInfo classifyArgumentType(QualType Ty, unsigned &neededInt,
+ unsigned &neededSSE) const;
public:
X86_64ABIInfo(CodeGen::CodeGenTypes &CGT) : ABIInfo(CGT) {}
@@ -1681,8 +1662,7 @@
}
ABIArgInfo X86_64ABIInfo::classifyArgumentType(QualType Ty, unsigned &neededInt,
- unsigned &neededSSE,
- unsigned &neededMMX) const {
+ unsigned &neededSSE) const {
X86_64ABIInfo::Class Lo, Hi;
classify(Ty, 0, Lo, Hi);
@@ -1693,7 +1673,6 @@
neededInt = 0;
neededSSE = 0;
- neededMMX = 0;
const llvm::Type *ResType = 0;
switch (Lo) {
case NoClass:
@@ -1745,20 +1724,11 @@
// AMD64-ABI 3.2.3p3: Rule 3. If the class is SSE, the next
// available SSE register is used, the registers are taken in the
// order from %xmm0 to %xmm7.
- case SSE: {
- const llvm::Type *IRType = CGT.ConvertTypeRecursive(Ty);
- if (Hi != NoClass || !UseX86_MMXType(IRType)) {
- ResType = GetSSETypeAtOffset(IRType, 0, Ty, 0);
- ++neededSSE;
- } else {
- // This is an MMX type. Treat it as such.
- ResType = llvm::Type::getX86_MMXTy(getVMContext());
- ++neededMMX;
- }
-
+ case SSE:
+ ++neededSSE;
+ ResType = GetSSETypeAtOffset(CGT.ConvertTypeRecursive(Ty), 0, Ty, 0);
break;
}
- }
const llvm::Type *HighPart = 0;
switch (Hi) {
@@ -1817,7 +1787,7 @@
FI.getReturnInfo() = classifyReturnType(FI.getReturnType());
// Keep track of the number of assigned registers.
- unsigned freeIntRegs = 6, freeSSERegs = 8, freeMMXRegs = 8;
+ unsigned freeIntRegs = 6, freeSSERegs = 8;
// If the return value is indirect, then the hidden argument is consuming one
// integer register.
@@ -1828,18 +1798,16 @@
// get assigned (in left-to-right order) for passing as follows...
for (CGFunctionInfo::arg_iterator it = FI.arg_begin(), ie = FI.arg_end();
it != ie; ++it) {
- unsigned neededInt, neededSSE, neededMMX;
- it->info = classifyArgumentType(it->type, neededInt, neededSSE, neededMMX);
+ unsigned neededInt, neededSSE;
+ it->info = classifyArgumentType(it->type, neededInt, neededSSE);
// AMD64-ABI 3.2.3p3: If there are no registers available for any
// eightbyte of an argument, the whole argument is passed on the
// stack. If registers have already been assigned for some
// eightbytes of such an argument, the assignments get reverted.
- if (freeIntRegs >= neededInt && freeSSERegs >= neededSSE &&
- freeMMXRegs >= neededMMX) {
+ if (freeIntRegs >= neededInt && freeSSERegs >= neededSSE) {
freeIntRegs -= neededInt;
freeSSERegs -= neededSSE;
- freeMMXRegs -= neededMMX;
} else {
it->info = getIndirectResult(it->type);
}
@@ -1908,13 +1876,10 @@
// i8* overflow_arg_area;
// i8* reg_save_area;
// };
- unsigned neededInt, neededSSE, neededMMX;
+ unsigned neededInt, neededSSE;
Ty = CGF.getContext().getCanonicalType(Ty);
- ABIArgInfo AI = classifyArgumentType(Ty, neededInt, neededSSE, neededMMX);
-
- // Lump the MMX in with SSE.
- neededSSE += neededMMX;
+ ABIArgInfo AI = classifyArgumentType(Ty, neededInt, neededSSE);
// AMD64-ABI 3.5.7p5: Step 1. Determine whether type may be passed
// in the registers. If not go to step 7.
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