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| author | Derek Schuff <dschuff@google.com> | 2016-08-01 21:34:04 +0000 |
|---|---|---|
| committer | Derek Schuff <dschuff@google.com> | 2016-08-01 21:34:04 +0000 |
| commit | f41f67d3d91ca7aea611fd6eb4dc11d32ff677d5 (patch) | |
| tree | 415db41f5891d4c73bde4d6a2b89c2e031758676 /llvm/lib/Target/WebAssembly/WebAssembly.h | |
| parent | 4a7130a8fb77e45f3e597a132a539ac323ac6a34 (diff) | |
| download | llvm-f41f67d3d91ca7aea611fd6eb4dc11d32ff677d5.zip llvm-f41f67d3d91ca7aea611fd6eb4dc11d32ff677d5.tar.gz llvm-f41f67d3d91ca7aea611fd6eb4dc11d32ff677d5.tar.bz2 | |
[WebAssembly] Add asm.js-style exception handling support
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
Diffstat (limited to 'llvm/lib/Target/WebAssembly/WebAssembly.h')
| -rw-r--r-- | llvm/lib/Target/WebAssembly/WebAssembly.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Target/WebAssembly/WebAssembly.h b/llvm/lib/Target/WebAssembly/WebAssembly.h index 957f31c..e3c7b42 100644 --- a/llvm/lib/Target/WebAssembly/WebAssembly.h +++ b/llvm/lib/Target/WebAssembly/WebAssembly.h @@ -16,14 +16,18 @@ #ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLY_H #define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLY_H +#include "llvm/PassRegistry.h" #include "llvm/Support/CodeGen.h" namespace llvm { class WebAssemblyTargetMachine; +class ModulePass; class FunctionPass; // LLVM IR passes. +ModulePass *createWebAssemblyLowerEmscriptenExceptions(); +void initializeWebAssemblyLowerEmscriptenExceptionsPass(PassRegistry &); FunctionPass *createWebAssemblyOptimizeReturned(); // ISel and immediate followup passes. |