72 lines · cpp
1//===- VE.cpp -------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "ABIInfoImpl.h"10#include "TargetInfo.h"11 12using namespace clang;13using namespace clang::CodeGen;14 15//===----------------------------------------------------------------------===//16// VE ABI Implementation.17//18namespace {19class VEABIInfo : public DefaultABIInfo {20public:21 VEABIInfo(CodeGenTypes &CGT) : DefaultABIInfo(CGT) {}22 23private:24 ABIArgInfo classifyReturnType(QualType RetTy) const;25 ABIArgInfo classifyArgumentType(QualType RetTy) const;26 void computeInfo(CGFunctionInfo &FI) const override;27};28} // end anonymous namespace29 30ABIArgInfo VEABIInfo::classifyReturnType(QualType Ty) const {31 if (Ty->isAnyComplexType())32 return ABIArgInfo::getDirect();33 uint64_t Size = getContext().getTypeSize(Ty);34 if (Size < 64 && Ty->isIntegerType())35 return ABIArgInfo::getExtend(Ty);36 return DefaultABIInfo::classifyReturnType(Ty);37}38 39ABIArgInfo VEABIInfo::classifyArgumentType(QualType Ty) const {40 if (Ty->isAnyComplexType())41 return ABIArgInfo::getDirect();42 uint64_t Size = getContext().getTypeSize(Ty);43 if (Size < 64 && Ty->isIntegerType())44 return ABIArgInfo::getExtend(Ty);45 return DefaultABIInfo::classifyArgumentType(Ty);46}47 48void VEABIInfo::computeInfo(CGFunctionInfo &FI) const {49 FI.getReturnInfo() = classifyReturnType(FI.getReturnType());50 for (auto &Arg : FI.arguments())51 Arg.info = classifyArgumentType(Arg.type);52}53 54namespace {55class VETargetCodeGenInfo : public TargetCodeGenInfo {56public:57 VETargetCodeGenInfo(CodeGenTypes &CGT)58 : TargetCodeGenInfo(std::make_unique<VEABIInfo>(CGT)) {}59 // VE ABI requires the arguments of variadic and prototype-less functions60 // are passed in both registers and memory.61 bool isNoProtoCallVariadic(const CallArgList &args,62 const FunctionNoProtoType *fnType) const override {63 return true;64 }65};66} // end anonymous namespace67 68std::unique_ptr<TargetCodeGenInfo>69CodeGen::createVETargetCodeGenInfo(CodeGenModule &CGM) {70 return std::make_unique<VETargetCodeGenInfo>(CGM.getTypes());71}72