RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-25 20:23:11 +01:00
Code Issues Projects Releases Wiki Activity
Mirror of https://github.com/RPCS3/llvm-mirror
128,840 Commits 4 Branches 5 Tags 704 MiB
C++ 96.9%
C 1%
Python 1%
CMake 0.6%
OCaml 0.2%
Other 0.1%
7184969f04
Go to file
Silviu Baranga 7184969f04 [DAGCombine] Catch the case where extract_vector_elt can cause an any_ext while processing AND SDNodes 
Summary:
extract_vector_elt can cause an implicit any_ext if the types don't
match. When processing the following pattern:

  (and (extract_vector_elt (load ([non_ext|any_ext|zero_ext] V))), c)

DAGCombine was ignoring the possible extend, and sometimes removing
the AND even though it was required to maintain some of the bits
in the result to 0, resulting in a miscompile.

This change fixes the issue by limiting the transformation only to
cases where the extract_vector_elt doesn't perform the implicit
extend.

Reviewers: t.p.northover, jmolloy

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D18247

llvm-svn: 263935
2016-03-21 11:43:46 +00:00
bindings bindings/go: reinstate TargetMachine.TargetData 2016-03-15 05:04:06 +00:00
cmake cmake: include what you use 2016-03-08 18:56:00 +00:00
docs [libFuzzer] one more trophie 2016-03-19 01:05:33 +00:00
examples [PM] Update Kaleidoscope with the new header file. 2016-03-11 12:10:15 +00:00
include [ELF] Update x86_64 relocations to 0.99.8 ABI 2016-03-20 09:45:08 +00:00
lib [DAGCombine] Catch the case where extract_vector_elt can cause an any_ext while processing AND SDNodes 2016-03-21 11:43:46 +00:00
projects Remove autoconf support 2016-01-26 21:29:08 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
test [DAGCombine] Catch the case where extract_vector_elt can cause an any_ext while processing AND SDNodes 2016-03-21 11:43:46 +00:00
tools [gold] Emit a diagnostic in case we fail to remove a file. 2016-03-20 20:12:33 +00:00
unittests Interface to get/set profile summary metadata to module 2016-03-18 21:29:30 +00:00
utils Typesafe visualization of PointerIntPairs in Visual Studio 2016-03-18 20:06:16 +00:00
.arcconfig
.clang-format
.clang-tidy adding readability-identifier-naming to llvm clang-tidy configuration. 2015-12-08 17:44:51 +00:00
.gitignore Minor updates to gitignore so that symlinks are ignored in the projects dir. 2015-07-07 20:24:58 +00:00
CMakeLists.txt llvm-shlib: Remove the option to override __cxa_atexit 2016-03-14 21:54:45 +00:00
CODE_OWNERS.TXT Add self to CODE_OWNERS 2016-03-08 19:01:15 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT [WebAssembly] Initial WebAssembly backend 2015-06-29 23:51:55 +00:00
LICENSE.TXT
llvm.spec.in [Sparc] Implement i64 load/store support for 32-bit sparc. 2015-08-10 19:11:39 +00:00
LLVMBuild.txt
README.txt Revert previous test commit. 2016-01-04 19:13:29 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
================================

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.