mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-19 02:52:53 +02:00
0a94860dda
MCContext does not destroy MCSymbols on shutdown. So, rather than putting SmallVectors (which may heap-allocate) inside MCSymbolWasm, use unowned pointer to a WasmSignature instead. The signatures are now owned by the AsmPrinter. Also uses WasmSignature instead of param and result vectors in TargetStreamer, and leaves some TODOs for further simplification. Differential Revision: https://reviews.llvm.org/D52580 llvm-svn: 343733
82 lines
3.0 KiB
C++
82 lines
3.0 KiB
C++
// WebAssemblyAsmPrinter.h - WebAssembly implementation of AsmPrinter-*- C++ -*-
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYASMPRINTER_H
|
|
#define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYASMPRINTER_H
|
|
|
|
#include "WebAssemblyMachineFunctionInfo.h"
|
|
#include "WebAssemblySubtarget.h"
|
|
#include "llvm/CodeGen/AsmPrinter.h"
|
|
#include "llvm/MC/MCStreamer.h"
|
|
#include "llvm/Target/TargetMachine.h"
|
|
|
|
namespace llvm {
|
|
class MCSymbol;
|
|
class WebAssemblyTargetStreamer;
|
|
class WebAssemblyMCInstLower;
|
|
|
|
class LLVM_LIBRARY_VISIBILITY WebAssemblyAsmPrinter final : public AsmPrinter {
|
|
const WebAssemblySubtarget *Subtarget;
|
|
const MachineRegisterInfo *MRI;
|
|
WebAssemblyFunctionInfo *MFI;
|
|
// TODO: Do the uniquing of Signatures here instead of ObjectFileWriter?
|
|
std::vector<std::unique_ptr<wasm::WasmSignature>> Signatures;
|
|
|
|
public:
|
|
explicit WebAssemblyAsmPrinter(TargetMachine &TM,
|
|
std::unique_ptr<MCStreamer> Streamer)
|
|
: AsmPrinter(TM, std::move(Streamer)), Subtarget(nullptr), MRI(nullptr),
|
|
MFI(nullptr) {}
|
|
|
|
StringRef getPassName() const override {
|
|
return "WebAssembly Assembly Printer";
|
|
}
|
|
|
|
const WebAssemblySubtarget &getSubtarget() const { return *Subtarget; }
|
|
void addSignature(std::unique_ptr<wasm::WasmSignature> &&Sig) {
|
|
Signatures.push_back(std::move(Sig));
|
|
}
|
|
|
|
//===------------------------------------------------------------------===//
|
|
// MachineFunctionPass Implementation.
|
|
//===------------------------------------------------------------------===//
|
|
|
|
bool runOnMachineFunction(MachineFunction &MF) override {
|
|
Subtarget = &MF.getSubtarget<WebAssemblySubtarget>();
|
|
MRI = &MF.getRegInfo();
|
|
MFI = MF.getInfo<WebAssemblyFunctionInfo>();
|
|
return AsmPrinter::runOnMachineFunction(MF);
|
|
}
|
|
|
|
//===------------------------------------------------------------------===//
|
|
// AsmPrinter Implementation.
|
|
//===------------------------------------------------------------------===//
|
|
|
|
void EmitEndOfAsmFile(Module &M) override;
|
|
void EmitJumpTableInfo() override;
|
|
void EmitConstantPool() override;
|
|
void EmitFunctionBodyStart() override;
|
|
void EmitInstruction(const MachineInstr *MI) override;
|
|
const MCExpr *lowerConstant(const Constant *CV) override;
|
|
bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
|
|
unsigned AsmVariant, const char *ExtraCode,
|
|
raw_ostream &OS) override;
|
|
bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
|
|
unsigned AsmVariant, const char *ExtraCode,
|
|
raw_ostream &OS) override;
|
|
|
|
MVT getRegType(unsigned RegNo) const;
|
|
std::string regToString(const MachineOperand &MO);
|
|
WebAssemblyTargetStreamer *getTargetStreamer();
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif
|