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//===--- Disasm.cpp - Disassembler for bytecode functions -------*- 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
//
//===----------------------------------------------------------------------===//
//
// Dump method for Function which disassembles the bytecode.
//
//===----------------------------------------------------------------------===//
#include "Floating.h"
#include "Function.h"
#include "Opcode.h"
#include "PrimType.h"
#include "Program.h"
#include "clang/AST/DeclCXX.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Format.h"
using namespace clang;
using namespace clang::interp;
template <typename T> inline T ReadArg(Program &P, CodePtr &OpPC) {
if constexpr (std::is_pointer_v<T>) {
uint32_t ID = OpPC.read<uint32_t>();
return reinterpret_cast<T>(P.getNativePointer(ID));
} else {
return OpPC.read<T>();
}
}
template <> inline Floating ReadArg<Floating>(Program &P, CodePtr &OpPC) {
Floating F = Floating::deserialize(*OpPC);
OpPC += align(F.bytesToSerialize());
return F;
}
LLVM_DUMP_METHOD void Function::dump() const { dump(llvm::errs()); }
LLVM_DUMP_METHOD void Function::dump(llvm::raw_ostream &OS) const {
OS << getName() << " " << (const void *)this << "\n";
OS << "frame size: " << getFrameSize() << "\n";
OS << "arg size: " << getArgSize() << "\n";
OS << "rvo: " << hasRVO() << "\n";
OS << "this arg: " << hasThisPointer() << "\n";
auto PrintName = [&OS](const char *Name) {
OS << Name;
long N = 30 - strlen(Name);
if (N > 0)
OS.indent(N);
};
for (CodePtr Start = getCodeBegin(), PC = Start; PC != getCodeEnd();) {
size_t Addr = PC - Start;
auto Op = PC.read<Opcode>();
OS << llvm::format("%8d", Addr) << " ";
switch (Op) {
#define GET_DISASM
#include "Opcodes.inc"
#undef GET_DISASM
}
}
}
LLVM_DUMP_METHOD void Program::dump() const { dump(llvm::errs()); }
LLVM_DUMP_METHOD void Program::dump(llvm::raw_ostream &OS) const {
OS << ":: Program\n";
OS << "Global Variables: " << Globals.size() << "\n";
OS << "Functions: " << Funcs.size() << "\n";
OS << "\n";
for (auto &Func : Funcs) {
Func.second->dump();
}
for (auto &Anon : AnonFuncs) {
Anon->dump();
}
}
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