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
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 namespace
29
30ABIArgInfo 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
39ABIArgInfo 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
48void 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
54namespace {
55class VETargetCodeGenInfo : public TargetCodeGenInfo {
56public:
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
68std::unique_ptr<TargetCodeGenInfo>
69CodeGen::createVETargetCodeGenInfo(CodeGenModule &CGM) {
70 return std::make_unique<VETargetCodeGenInfo>(args&: CGM.getTypes());
71}
72