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llvm-mirror/unittests/CodeGen/TestAsmPrinter.h
Jameson Nash 11a667f122 make the AsmPrinterHandler array public
This lets external consumers customize the output, similar to how
AssemblyAnnotationWriter lets the caller define callbacks when printing
IR. The array of handlers already existed, this just cleans up the code
so that it can be exposed publically.

Replaces https://reviews.llvm.org/D74158

Differential Revision: https://reviews.llvm.org/D89613
2020-11-03 10:02:09 -05:00

84 lines
2.8 KiB
C++

//===--- unittests/CodeGen/TestAsmPrinter.h ---------------------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_UNITTESTS_CODEGEN_TESTASMPRINTER_H
#define LLVM_UNITTESTS_CODEGEN_TESTASMPRINTER_H
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/MC/MCStreamer.h"
#include "gmock/gmock.h"
#include <memory>
namespace llvm {
class AsmPrinter;
class MCContext;
class Target;
class TargetMachine;
class MockMCStreamer : public MCStreamer {
public:
explicit MockMCStreamer(MCContext *Ctx);
~MockMCStreamer();
// These methods are pure virtual in MCStreamer, thus, have to be overridden:
MOCK_METHOD2(emitSymbolAttribute,
bool(MCSymbol *Symbol, MCSymbolAttr Attribute));
MOCK_METHOD3(emitCommonSymbol,
void(MCSymbol *Symbol, uint64_t Size, unsigned ByteAlignment));
MOCK_METHOD5(emitZerofill,
void(MCSection *Section, MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlignment, SMLoc Loc));
// The following are mock methods to be used in tests.
MOCK_METHOD2(emitIntValue, void(uint64_t Value, unsigned Size));
MOCK_METHOD3(emitValueImpl,
void(const MCExpr *Value, unsigned Size, SMLoc Loc));
MOCK_METHOD3(emitAbsoluteSymbolDiff,
void(const MCSymbol *Hi, const MCSymbol *Lo, unsigned Size));
MOCK_METHOD2(EmitCOFFSecRel32, void(MCSymbol const *Symbol, uint64_t Offset));
};
class TestAsmPrinter {
std::unique_ptr<MCContext> MC;
MockMCStreamer *MS = nullptr; // Owned by AsmPrinter
std::unique_ptr<TargetMachine> TM;
std::unique_ptr<AsmPrinter> Asm;
/// Private constructor; call TestAsmPrinter::create(...)
/// to create an instance.
TestAsmPrinter();
/// Initialize an AsmPrinter instance with a mocked MCStreamer.
llvm::Error init(const Target *TheTarget, StringRef TripleStr,
uint16_t DwarfVersion, dwarf::DwarfFormat DwarfFormat);
public:
/// Create an AsmPrinter and accompanied objects.
/// Returns ErrorSuccess() with an empty value if the requested target is not
/// supported so that the corresponding test can be gracefully skipped.
static llvm::Expected<std::unique_ptr<TestAsmPrinter>>
create(const std::string &TripleStr, uint16_t DwarfVersion,
dwarf::DwarfFormat DwarfFormat);
~TestAsmPrinter();
void setDwarfUsesRelocationsAcrossSections(bool Enable);
AsmPrinter *getAP() const { return Asm.get(); }
AsmPrinter *releaseAP() { return Asm.release(); }
MCContext &getCtx() const { return *MC; }
MockMCStreamer &getMS() const { return *MS; }
};
} // end namespace llvm
#endif // LLVM_UNITTESTS_CODEGEN_TESTASMPRINTER_H