| 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-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #include "ABIInfoImpl.h" |
| 10 | #include "TargetInfo.h" |
| 11 | |
| 12 | using namespace clang; |
| 13 | using namespace clang::CodeGen; |
| 14 | |
| 15 | //===----------------------------------------------------------------------===// |
| 16 | // VE ABI Implementation. |
| 17 | // |
| 18 | namespace { |
| 19 | class VEABIInfo : public DefaultABIInfo { |
| 20 | public: |
| 21 | VEABIInfo(CodeGenTypes &CGT) : DefaultABIInfo(CGT) {} |
| 22 | |
| 23 | private: |
| 24 | ABIArgInfo classifyReturnType(QualType RetTy) const; |
| 25 | ABIArgInfo classifyArgumentType(QualType RetTy) const; |
| 26 | void computeInfo(CGFunctionInfo &FI) const override; |
| 27 | }; |
| 28 | } // end anonymous namespace |
| 29 | |
| 30 | ABIArgInfo VEABIInfo::classifyReturnType(QualType Ty) const { |
| 31 | if (Ty->isAnyComplexType()) |
| 32 | return ABIArgInfo::getDirect(); |
| 33 | uint64_t Size = getContext().getTypeSize(T: Ty); |
| 34 | if (Size < 64 && Ty->isIntegerType()) |
| 35 | return ABIArgInfo::getExtend(Ty); |
| 36 | return DefaultABIInfo::classifyReturnType(RetTy: Ty); |
| 37 | } |
| 38 | |
| 39 | ABIArgInfo VEABIInfo::classifyArgumentType(QualType Ty) const { |
| 40 | if (Ty->isAnyComplexType()) |
| 41 | return ABIArgInfo::getDirect(); |
| 42 | uint64_t Size = getContext().getTypeSize(T: Ty); |
| 43 | if (Size < 64 && Ty->isIntegerType()) |
| 44 | return ABIArgInfo::getExtend(Ty); |
| 45 | return DefaultABIInfo::classifyArgumentType(RetTy: Ty); |
| 46 | } |
| 47 | |
| 48 | void VEABIInfo::computeInfo(CGFunctionInfo &FI) const { |
| 49 | FI.getReturnInfo() = classifyReturnType(Ty: FI.getReturnType()); |
| 50 | for (auto &Arg : FI.arguments()) |
| 51 | Arg.info = classifyArgumentType(Ty: Arg.type); |
| 52 | } |
| 53 | |
| 54 | namespace { |
| 55 | class VETargetCodeGenInfo : public TargetCodeGenInfo { |
| 56 | public: |
| 57 | VETargetCodeGenInfo(CodeGenTypes &CGT) |
| 58 | : TargetCodeGenInfo(std::make_unique<VEABIInfo>(args&: CGT)) {} |
| 59 | // VE ABI requires the arguments of variadic and prototype-less functions |
| 60 | // 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 namespace |
| 67 | |
| 68 | std::unique_ptr<TargetCodeGenInfo> |
| 69 | CodeGen::createVETargetCodeGenInfo(CodeGenModule &CGM) { |
| 70 | return std::make_unique<VETargetCodeGenInfo>(args&: CGM.getTypes()); |
| 71 | } |
| 72 |