Commit Graph

6 Commits

Author SHA1 Message Date
Dan Gohman d934cb8806 [WebAssembly] Basic support for Wasm object file encoding.
With the "wasm32-unknown-unknown-wasm" triple, this allows writing out
simple wasm object files, and is another step in a larger series toward
migrating from ELF to general wasm object support. Note that this code
and the binary format itself is still experimental.

llvm-svn: 296190
2017-02-24 23:18:00 +00:00
Heejin Ahn c0f18172f5 [WebAssembly] Add asm.js-style setjmp/longjmp handling for wasm (reland r280302)
Summary: This patch adds asm.js-style setjmp/longjmp handling support for WebAssembly. It also uses JavaScript's try and catch mechanism.

Reviewers: jpp, dschuff

Subscribers: jfb, dschuff

Differential Revision: https://reviews.llvm.org/D24121

llvm-svn: 280415
2016-09-01 21:05:15 +00:00
Heejin Ahn 10a7086700 Revert "Add asm.js-style setjmp/longjmp handling for wasm"
This reverts commit r280302, it broke the integration tests.

llvm-svn: 280329
2016-09-01 00:44:37 +00:00
Heejin Ahn 23d57103a4 Add asm.js-style setjmp/longjmp handling for wasm
Summary: This patch adds asm.js-style setjmp/longjmp handling support for WebAssembly. It also uses JavaScript's try and catch mechanism.

Reviewers: jpp, dschuff

Subscribers: jfb, dschuff

Differential Revision: https://reviews.llvm.org/D23928

llvm-svn: 280302
2016-08-31 22:40:34 +00:00
Derek Schuff ccdceda128 [WebAssembly] Refactor WebAssemblyLowerEmscriptenException pass for setjmp/longjmp
This patch changes the code structure of
WebAssemblyLowerEmscriptenException pass to support both exception
handling and setjmp/longjmp. It also changes the name of the pass and
the source file.

1. Change the file/pass name to WebAssemblyLowerEmscriptenExceptions ->
WebAssemblyLowerEmscriptenEHSjLj to make it clear that it supports both
EH and SjLj
2. List function / global variable names at the top so they
can be changed easily
3. Some cosmetic changes

Patch by Heejin Ahn

Differential Revision: https://reviews.llvm.org/D23588

llvm-svn: 279075
2016-08-18 15:27:25 +00:00
Derek Schuff 66641322ce [WebAssembly] Add -emscripten-cxx-exceptions-whitelist option
This patch adds -emscripten-cxx-exceptions-whitelist option to
WebAssemblyLowerEmscriptenExceptions pass. This options is the list of
function names in which Emscripten-style exception handling is enabled.
This is to support emscripten's EXCEPTION_CATCHING_WHITELIST which
exists because of the performance impact of emscripten's non-zero-cost
EH method.

Patch by Heejin Ahn

Differential Revision: https://reviews.llvm.org/D23292

llvm-svn: 278171
2016-08-09 22:37:00 +00:00