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9f4841260d
Summary: this patch makes tablegen generate llvm attributes in a more generic and simpler (at least to me). changes: make tablegen generate ... ATTRIBUTE_ENUM(Alignment,align) ATTRIBUTE_ENUM(AllocSize,allocsize) ... which can be used to generate most of what was previously used and more. Tablegen was also generating attributes from 2 identical files leading to identical output. so I removed one of them and made user use the other. Reviewers: jdoerfert, thakis, aaron.ballman Reviewed By: aaron.ballman Subscribers: mgorny, hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D72455
111 lines
3.0 KiB
C++
111 lines
3.0 KiB
C++
//===- Attributes.cpp - Generate attributes -------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/TableGen/Record.h"
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#include <algorithm>
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#include <string>
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#include <vector>
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using namespace llvm;
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#define DEBUG_TYPE "attr-enum"
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namespace {
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class Attributes {
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public:
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Attributes(RecordKeeper &R) : Records(R) {}
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void emit(raw_ostream &OS);
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private:
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void emitTargetIndependentNames(raw_ostream &OS);
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void emitFnAttrCompatCheck(raw_ostream &OS, bool IsStringAttr);
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RecordKeeper &Records;
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};
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} // End anonymous namespace.
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void Attributes::emitTargetIndependentNames(raw_ostream &OS) {
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OS << "#ifdef GET_ATTR_NAMES\n";
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OS << "#undef GET_ATTR_NAMES\n";
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OS << "#ifndef ATTRIBUTE_ALL\n";
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OS << "#define ATTRIBUTE_ALL(FIRST, SECOND)\n";
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OS << "#endif\n\n";
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auto Emiter = [&](StringRef KindName, StringRef MacroName) {
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std::vector<Record *> Attrs = Records.getAllDerivedDefinitions(KindName);
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OS << "#ifndef " << MacroName << "\n";
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OS << "#define " << MacroName << "(FIRST, SECOND) ATTRIBUTE_ALL(FIRST, "
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"SECOND)\n";
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OS << "#endif\n\n";
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for (auto A : Attrs) {
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OS << "" << MacroName << "(" << A->getName() << ","
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<< A->getValueAsString("AttrString") << ")\n";
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}
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OS << "#undef " << MacroName << "\n\n";
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};
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Emiter("EnumAttr", "ATTRIBUTE_ENUM");
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Emiter("StrBoolAttr", "ATTRIBUTE_STRBOOL");
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OS << "#undef ATTRIBUTE_ALL\n";
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OS << "#endif\n";
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}
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void Attributes::emitFnAttrCompatCheck(raw_ostream &OS, bool IsStringAttr) {
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OS << "#ifdef GET_ATTR_COMPAT_FUNC\n";
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OS << "#undef GET_ATTR_COMPAT_FUNC\n";
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OS << "static inline bool hasCompatibleFnAttrs(const Function &Caller,\n"
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<< " const Function &Callee) {\n";
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OS << " bool Ret = true;\n\n";
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std::vector<Record *> CompatRules =
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Records.getAllDerivedDefinitions("CompatRule");
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for (auto *Rule : CompatRules) {
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StringRef FuncName = Rule->getValueAsString("CompatFunc");
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OS << " Ret &= " << FuncName << "(Caller, Callee);\n";
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}
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OS << "\n";
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OS << " return Ret;\n";
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OS << "}\n\n";
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std::vector<Record *> MergeRules =
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Records.getAllDerivedDefinitions("MergeRule");
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OS << "static inline void mergeFnAttrs(Function &Caller,\n"
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<< " const Function &Callee) {\n";
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for (auto *Rule : MergeRules) {
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StringRef FuncName = Rule->getValueAsString("MergeFunc");
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OS << " " << FuncName << "(Caller, Callee);\n";
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}
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OS << "}\n\n";
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OS << "#endif\n";
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}
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void Attributes::emit(raw_ostream &OS) {
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emitTargetIndependentNames(OS);
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emitFnAttrCompatCheck(OS, false);
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}
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namespace llvm {
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void EmitAttributes(RecordKeeper &RK, raw_ostream &OS) {
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Attributes(RK).emit(OS);
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}
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} // End llvm namespace.
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