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-rw-r--r--lib/AST/Interp/Disasm.cpp69
1 files changed, 69 insertions, 0 deletions
diff --git a/lib/AST/Interp/Disasm.cpp b/lib/AST/Interp/Disasm.cpp
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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 "Function.h"
+#include "Opcode.h"
+#include "PrimType.h"
+#include "Program.h"
+#include "clang/AST/DeclCXX.h"
+#include "llvm/Support/Compiler.h"
+
+using namespace clang;
+using namespace clang::interp;
+
+LLVM_DUMP_METHOD void Function::dump() const { dump(llvm::errs()); }
+
+LLVM_DUMP_METHOD void Function::dump(llvm::raw_ostream &OS) const {
+ if (F) {
+ if (auto *Cons = dyn_cast<CXXConstructorDecl>(F)) {
+ const std::string &Name = Cons->getParent()->getNameAsString();
+ OS << Name << "::" << Name << ":\n";
+ } else {
+ OS << F->getNameAsString() << ":\n";
+ }
+ } else {
+ OS << "<<expr>>\n";
+ }
+
+ OS << "frame size: " << getFrameSize() << "\n";
+ OS << "arg size: " << getArgSize() << "\n";
+ OS << "rvo: " << hasRVO() << "\n";
+
+ auto PrintName = [&OS](const char *Name) {
+ OS << Name;
+ for (long I = 0, N = strlen(Name); I < 30 - N; ++I) {
+ OS << ' ';
+ }
+ };
+
+ 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 {
+ for (auto &Func : Funcs) {
+ Func.second->dump();
+ }
+ for (auto &Anon : AnonFuncs) {
+ Anon->dump();
+ }
+}