RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-21 18:22:53 +01:00
Code Issues Projects Releases Wiki Activity
Mirror of https://github.com/RPCS3/llvm-mirror
219,212 Commits 4 Branches 5 Tags 704 MiB
C++ 96.9%
C 1%
Python 1%
CMake 0.6%
OCaml 0.2%
Other 0.1%
9b48b7e7be
Go to file
Heejin Ahn 9b48b7e7be [WebAssembly] Make Emscripten EH work with Emscripten SjLj 
When Emscripten EH mixes with Emscripten SjLj, we are not currently
handling some of them correctly. There are three cases:
1. The current function calls `setjmp` and there is an `invoke` to a
   function that can either throw or longjmp. In this case, we have to
   check both for exception and longjmp. We are currently handling this
   case correctly:
   0c0eb76782/llvm/lib/Target/WebAssembly/WebAssemblyLowerEmscriptenEHSjLj.cpp (L1058-L1090)
   When inserting routines for functions that can longjmp, which we do
   only for setjmp-calling functions, we check if the function was
   previously an `invoke` and handle it correctly.

2. The current function does NOT call `setjmp` and there is an `invoke`
   to a function that can either throw or longjmp. Because there is no
   `setjmp` call, we haven't been doing any check for functions that can
   longjmp. But in that case, for `invoke`, we only check for an
   exception and if it is not an exception we reset `__THREW__` to 0,
   which can silently swallow the longjmp:
   0c0eb76782/llvm/lib/Target/WebAssembly/WebAssemblyLowerEmscriptenEHSjLj.cpp (L70-L80)
   This CL fixes this.

3. The current function calls `setjmp` and there is no `invoke`. Because
   it is not an `invoke`, we haven't been doing any check for functions
   that can throw, and only insert longjmp-checking routines for
   functions that can longjmp. But in that case, if a longjmpable
   function throws, we only check for a longjmp so if it is not a
   longjmp we reset `__THREW__` to 0, which can silently swallow the
   exception:
   0c0eb76782/llvm/lib/Target/WebAssembly/WebAssemblyLowerEmscriptenEHSjLj.cpp (L156-L169)
   This CL fixes this.

To do that, this moves around some code, so we register necessary
functions for both EH and SjLj and precompute some data (the set of
functions that contains `setjmp`) before doing actual EH or SjLj
transformation.

This CL makes 2nd and 3rd tests in
https://github.com/emscripten-core/emscripten/pull/14732 work.

Reviewed By: dschuff

Differential Revision: https://reviews.llvm.org/D106525
2021-07-26 13:48:31 -07:00
benchmarks
bindings [IR] Rename comdat noduplicates to comdat nodeduplicate 2021-07-20 12:47:10 -07:00
cmake [CMake] Add LIBXML2_DEFINITIONS when testing for symbol existance 2021-07-24 09:55:14 +02:00
docs [LLVM IR] Allow volatile stores to trap. 2021-07-26 10:51:00 -07:00
examples Opaque pointer GEP fixes for BrainF example 2021-07-18 18:25:54 -07:00
include [CodeView] Saturate values bigger than supported by APInt. 2021-07-26 22:15:26 +02:00
lib [WebAssembly] Make Emscripten EH work with Emscripten SjLj 2021-07-26 13:48:31 -07:00
projects [RFC][debuginfo-test] Rename debug-info lit tests for general purposes 2021-06-28 11:31:40 +01:00
resources
runtimes [runtimes] Fix umbrella component targets 2021-06-12 19:49:44 -07:00
test [WebAssembly] Make Emscripten EH work with Emscripten SjLj 2021-07-26 13:48:31 -07:00
tools [llvm-objcopy] Drop GRP_COMDAT if the group signature is localized 2021-07-26 09:05:18 -07:00
unittests [SystemZ] Add support for new cpu architecture - arch14 2021-07-26 16:57:28 +02:00
utils [gn build] Port 6aa9e746ebde 2021-07-24 12:03:50 +00:00
.clang-format
.clang-tidy NFC: .clang-tidy: Inherit configs from parents to improve maintainability 2021-06-08 08:25:59 -07:00
.gitattributes Fix the "git modified" issue on the preserve-comments-crlf.s. 2019-09-10 12:17:49 +00:00
.gitignore Remove .gitignore entries not relevant in the monorepo. 2021-04-07 12:25:02 -07:00
CMakeLists.txt [MLGO] Strip TF_PIP cmake variable 2021-07-22 16:28:13 -07:00
CODE_OWNERS.TXT [NFC] Update code owners file 2021-07-20 11:29:10 -07:00
configure
CREDITS.TXT Update personal info in CREDITS.TXT 2021-04-11 19:25:02 +08:00
LICENSE.TXT Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
llvm.spec.in Update structured references to the license to the new license. 2019-01-19 11:30:51 +00:00
README.txt Test commit. 2020-03-14 18:08:26 -07:00
RELEASE_TESTERS.TXT Update the list of platforms & archs 2018-12-16 14:47:16 +00:00

README.txt 

The LLVM Compiler Infrastructure
================================

This directory and its subdirectories contain source code for LLVM,
a toolkit for the construction of highly optimized compilers,
optimizers, and runtime environments.

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the documentation provided in docs/ for further
assistance with LLVM, and in particular docs/GettingStarted.rst for getting
started with LLVM and docs/README.txt for an overview of LLVM's
documentation setup.

If you are writing a package for LLVM, see docs/Packaging.rst for our
suggestions.