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87e99c4f9c
Summary: This patch includes asm.js-style exception handling support for WebAssembly. The WebAssembly MVP does not have any support for unwinding or non-local control flow. In order to support C++ exceptions, emscripten currently uses JavaScript exceptions along with some support code (written in JavaScript) that is bundled by emscripten with the generated code. This scheme lowers exception-related instructions for wasm such that wasm modules can be compatible with emscripten's existing scheme and share the support code. Patch by Heejin Ahn Differential Revision: https://reviews.llvm.org/D22958 llvm-svn: 277391
55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
//===-- WebAssembly.h - Top-level interface for WebAssembly ----*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// \brief This file contains the entry points for global functions defined in
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/// the LLVM WebAssembly back-end.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLY_H
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#define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLY_H
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#include "llvm/PassRegistry.h"
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#include "llvm/Support/CodeGen.h"
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namespace llvm {
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class WebAssemblyTargetMachine;
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class ModulePass;
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class FunctionPass;
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// LLVM IR passes.
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ModulePass *createWebAssemblyLowerEmscriptenExceptions();
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void initializeWebAssemblyLowerEmscriptenExceptionsPass(PassRegistry &);
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FunctionPass *createWebAssemblyOptimizeReturned();
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// ISel and immediate followup passes.
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FunctionPass *createWebAssemblyISelDag(WebAssemblyTargetMachine &TM,
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CodeGenOpt::Level OptLevel);
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FunctionPass *createWebAssemblyArgumentMove();
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FunctionPass *createWebAssemblySetP2AlignOperands();
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// Late passes.
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FunctionPass *createWebAssemblyReplacePhysRegs();
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FunctionPass *createWebAssemblyPrepareForLiveIntervals();
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FunctionPass *createWebAssemblyOptimizeLiveIntervals();
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FunctionPass *createWebAssemblyStoreResults();
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FunctionPass *createWebAssemblyRegStackify();
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FunctionPass *createWebAssemblyRegColoring();
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FunctionPass *createWebAssemblyFixIrreducibleControlFlow();
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FunctionPass *createWebAssemblyCFGStackify();
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FunctionPass *createWebAssemblyLowerBrUnless();
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FunctionPass *createWebAssemblyRegNumbering();
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FunctionPass *createWebAssemblyPeephole();
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} // end namespace llvm
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#endif
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