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//===- VE.cpp -------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "ABIInfoImpl.h"
#include "TargetInfo.h"
using namespace clang;
using namespace clang::CodeGen;
//===----------------------------------------------------------------------===//
// VE ABI Implementation.
//
namespace {
class VEABIInfo : public DefaultABIInfo {
public:
VEABIInfo(CodeGenTypes &CGT) : DefaultABIInfo(CGT) {}
private:
ABIArgInfo classifyReturnType(QualType RetTy) const;
ABIArgInfo classifyArgumentType(QualType RetTy) const;
void computeInfo(CGFunctionInfo &FI) const override;
};
} // end anonymous namespace
ABIArgInfo VEABIInfo::classifyReturnType(QualType Ty) const {
if (Ty->isAnyComplexType())
return ABIArgInfo::getDirect();
uint64_t Size = getContext().getTypeSize(Ty);
if (Size < 64 && Ty->isIntegerType())
return ABIArgInfo::getExtend(Ty);
return DefaultABIInfo::classifyReturnType(Ty);
}
ABIArgInfo VEABIInfo::classifyArgumentType(QualType Ty) const {
if (Ty->isAnyComplexType())
return ABIArgInfo::getDirect();
uint64_t Size = getContext().getTypeSize(Ty);
if (Size < 64 && Ty->isIntegerType())
return ABIArgInfo::getExtend(Ty);
return DefaultABIInfo::classifyArgumentType(Ty);
}
void VEABIInfo::computeInfo(CGFunctionInfo &FI) const {
FI.getReturnInfo() = classifyReturnType(FI.getReturnType());
for (auto &Arg : FI.arguments())
Arg.info = classifyArgumentType(Arg.type);
}
namespace {
class VETargetCodeGenInfo : public TargetCodeGenInfo {
public:
VETargetCodeGenInfo(CodeGenTypes &CGT)
: TargetCodeGenInfo(std::make_unique<VEABIInfo>(CGT)) {}
// VE ABI requires the arguments of variadic and prototype-less functions
// are passed in both registers and memory.
bool isNoProtoCallVariadic(const CallArgList &args,
const FunctionNoProtoType *fnType) const override {
return true;
}
};
} // end anonymous namespace
std::unique_ptr<TargetCodeGenInfo>
CodeGen::createVETargetCodeGenInfo(CodeGenModule &CGM) {
return std::make_unique<VETargetCodeGenInfo>(CGM.getTypes());
}
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