diff options
Diffstat (limited to 'lib/CodeGen/TargetInfo.cpp')
| -rw-r--r-- | lib/CodeGen/TargetInfo.cpp | 75 |
1 files changed, 47 insertions, 28 deletions
diff --git a/lib/CodeGen/TargetInfo.cpp b/lib/CodeGen/TargetInfo.cpp index 2f8dd6c32d..ea538e395f 100644 --- a/lib/CodeGen/TargetInfo.cpp +++ b/lib/CodeGen/TargetInfo.cpp @@ -316,6 +316,10 @@ ABIArgInfo DefaultABIInfo::classifyArgumentType(QualType Ty, ABIArgInfo::getExtend() : ABIArgInfo::getDirect()); } +//===----------------------------------------------------------------------===// +// X86-32 ABI Implementation +//===----------------------------------------------------------------------===// + /// X86_32ABIInfo - The X86-32 ABI information. class X86_32ABIInfo : public ABIInfo { ASTContext &Context; @@ -656,6 +660,11 @@ bool X86_32TargetCodeGenInfo::initDwarfEHRegSizeTable( return false; } +//===----------------------------------------------------------------------===// +// X86-64 ABI Implementation +//===----------------------------------------------------------------------===// + + namespace { /// X86_64ABIInfo - The X86_64 ABI information. class X86_64ABIInfo : public ABIInfo { @@ -1427,7 +1436,6 @@ static llvm::Value *EmitVAArgFromMemory(llvm::Value *VAListAddr, llvm::Value *X86_64ABIInfo::EmitVAArg(llvm::Value *VAListAddr, QualType Ty, CodeGenFunction &CGF) const { llvm::LLVMContext &VMContext = CGF.getLLVMContext(); - const llvm::Type *DoubleTy = llvm::Type::getDoubleTy(VMContext); // Assume that va_list type is correct; should be pointer to LLVM type: // struct { @@ -1533,33 +1541,32 @@ llvm::Value *X86_64ABIInfo::EmitVAArg(llvm::Value *VAListAddr, QualType Ty, RegAddr = CGF.Builder.CreateGEP(RegAddr, gp_offset); RegAddr = CGF.Builder.CreateBitCast(RegAddr, llvm::PointerType::getUnqual(LTy)); + } else if (neededSSE == 1) { + RegAddr = CGF.Builder.CreateGEP(RegAddr, fp_offset); + RegAddr = CGF.Builder.CreateBitCast(RegAddr, + llvm::PointerType::getUnqual(LTy)); } else { - if (neededSSE == 1) { - RegAddr = CGF.Builder.CreateGEP(RegAddr, fp_offset); - RegAddr = CGF.Builder.CreateBitCast(RegAddr, - llvm::PointerType::getUnqual(LTy)); - } else { - assert(neededSSE == 2 && "Invalid number of needed registers!"); - // SSE registers are spaced 16 bytes apart in the register save - // area, we need to collect the two eightbytes together. - llvm::Value *RegAddrLo = CGF.Builder.CreateGEP(RegAddr, fp_offset); - llvm::Value *RegAddrHi = - CGF.Builder.CreateGEP(RegAddrLo, - llvm::ConstantInt::get(CGF.Int32Ty, 16)); - const llvm::Type *DblPtrTy = - llvm::PointerType::getUnqual(DoubleTy); - const llvm::StructType *ST = llvm::StructType::get(VMContext, DoubleTy, - DoubleTy, NULL); - llvm::Value *V, *Tmp = CGF.CreateTempAlloca(ST); - V = CGF.Builder.CreateLoad(CGF.Builder.CreateBitCast(RegAddrLo, - DblPtrTy)); - CGF.Builder.CreateStore(V, CGF.Builder.CreateStructGEP(Tmp, 0)); - V = CGF.Builder.CreateLoad(CGF.Builder.CreateBitCast(RegAddrHi, - DblPtrTy)); - CGF.Builder.CreateStore(V, CGF.Builder.CreateStructGEP(Tmp, 1)); - RegAddr = CGF.Builder.CreateBitCast(Tmp, - llvm::PointerType::getUnqual(LTy)); - } + assert(neededSSE == 2 && "Invalid number of needed registers!"); + // SSE registers are spaced 16 bytes apart in the register save + // area, we need to collect the two eightbytes together. + llvm::Value *RegAddrLo = CGF.Builder.CreateGEP(RegAddr, fp_offset); + llvm::Value *RegAddrHi = + CGF.Builder.CreateGEP(RegAddrLo, + llvm::ConstantInt::get(CGF.Int32Ty, 16)); + const llvm::Type *DoubleTy = llvm::Type::getDoubleTy(VMContext); + const llvm::Type *DblPtrTy = + llvm::PointerType::getUnqual(DoubleTy); + const llvm::StructType *ST = llvm::StructType::get(VMContext, DoubleTy, + DoubleTy, NULL); + llvm::Value *V, *Tmp = CGF.CreateTempAlloca(ST); + V = CGF.Builder.CreateLoad(CGF.Builder.CreateBitCast(RegAddrLo, + DblPtrTy)); + CGF.Builder.CreateStore(V, CGF.Builder.CreateStructGEP(Tmp, 0)); + V = CGF.Builder.CreateLoad(CGF.Builder.CreateBitCast(RegAddrHi, + DblPtrTy)); + CGF.Builder.CreateStore(V, CGF.Builder.CreateStructGEP(Tmp, 1)); + RegAddr = CGF.Builder.CreateBitCast(Tmp, + llvm::PointerType::getUnqual(LTy)); } // AMD64-ABI 3.5.7p5: Step 5. Set: @@ -1590,11 +1597,14 @@ llvm::Value *X86_64ABIInfo::EmitVAArg(llvm::Value *VAListAddr, QualType Ty, ResAddr->reserveOperandSpace(2); ResAddr->addIncoming(RegAddr, InRegBlock); ResAddr->addIncoming(MemAddr, InMemBlock); - return ResAddr; } + + +//===----------------------------------------------------------------------===// // PIC16 ABI Implementation +//===----------------------------------------------------------------------===// namespace { @@ -1727,7 +1737,9 @@ PPC32TargetCodeGenInfo::initDwarfEHRegSizeTable(CodeGen::CodeGenFunction &CGF, } +//===----------------------------------------------------------------------===// // ARM ABI Implementation +//===----------------------------------------------------------------------===// namespace { @@ -2043,7 +2055,9 @@ ABIArgInfo DefaultABIInfo::classifyReturnType(QualType RetTy, } } +//===----------------------------------------------------------------------===// // SystemZ ABI Implementation +//===----------------------------------------------------------------------===// namespace { @@ -2127,7 +2141,9 @@ ABIArgInfo SystemZABIInfo::classifyArgumentType(QualType Ty, } } +//===----------------------------------------------------------------------===// // MSP430 ABI Implementation +//===----------------------------------------------------------------------===// namespace { @@ -2164,8 +2180,11 @@ void MSP430TargetCodeGenInfo::SetTargetAttributes(const Decl *D, } } +//===----------------------------------------------------------------------===// // MIPS ABI Implementation. This works for both little-endian and // big-endian variants. +//===----------------------------------------------------------------------===// + namespace { class MIPSTargetCodeGenInfo : public TargetCodeGenInfo { public: |