6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-10-01 10:57:21 +00:00
Code Issues Projects Releases Wiki Activity
LLVM backend for 6502
112,605 Commits 39 Branches 0 Tags 277 MiB
C++ 48.7%
LLVM 38.5%
Assembly 10.2%
C 0.9%
Python 0.4%
Other 1.2%
26c81cc870
Go to file
Sanjay Patel 26c81cc870 [GVN] don't propagate equality comparisons of FP zero (PR22376) 
In http://reviews.llvm.org/D6911, we allowed GVN to propagate FP equalities
to allow some simple value range optimizations. But that introduced a bug
when comparing to -0.0 or 0.0: these compare equal even though they are not
bitwise identical.

This patch disallows propagating zero constants in equality comparisons. 
Fixes: http://llvm.org/bugs/show_bug.cgi?id=22376

Differential Revision: http://reviews.llvm.org/D7257



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227491 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-29 20:51:49 +00:00
autoconf Teach the autoconf machinery about the PS4 triple. 2015-01-26 15:25:05 +00:00
bindings IR: Return unique_ptr from MDNode::getTemporary() 2015-01-19 21:30:18 +00:00
cmake Add cmake flag LLVM_USE_SANITIZE_COVERAGE 2015-01-27 17:59:28 +00:00
docs Remove gc.root's performCustomLowering 2015-01-28 19:28:03 +00:00
examples Reorder. 2015-01-19 00:35:33 +00:00
include Compute the ELF SectionKind from the flags. 2015-01-29 17:33:21 +00:00
lib [GVN] don't propagate equality comparisons of FP zero (PR22376) 2015-01-29 20:51:49 +00:00
projects
test [GVN] don't propagate equality comparisons of FP zero (PR22376) 2015-01-29 20:51:49 +00:00
tools Disable compilation of llvm-pdbdump for versions of MSVC < 2013. 2015-01-29 18:44:14 +00:00
unittests Refactoring llvm command line parsing and option registration. 2015-01-28 19:00:25 +00:00
utils [X86] Teach disassembler to handle illegal immediates on AVX512 integer compare instructions. 2015-01-28 10:09:56 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore .gitignore: add some rules for tagging programs 2015-01-10 19:11:29 +00:00
CMakeLists.txt Trunk is now 3.7.0svn 2015-01-14 17:38:03 +00:00
CODE_OWNERS.TXT Assume code ownership for the PS4 to ensure patches get reviewed, per the Developer Policy. 2015-01-28 18:33:39 +00:00
configure Trunk is now 3.7.0svn 2015-01-14 17:38:03 +00:00
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in Add a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +00:00
Makefile.rules Add a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +00:00
README.txt Check commit access 2015-01-16 19:23:34 +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're writing a package for LLVM, see docs/Packaging.rst for our
suggestions.