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Mirror of https://github.com/RPCS3/llvm-mirror
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Eli Friedman 5c366741bf [ARM] Fix CPSR liveness in tMOVCCr_pseudo lowering. 
The lowering was missing live-ins in certain cases, like a sequence of
multiple tMOVCCr_pseudo instructions.  This would lead to a verifier
failure, and on pre-v6 Thumb CPSR would be incorrectly clobbered.

For reasons I don't completely understand, it's hard to get a sequence
of multiple tMOVCCr_pseudo instructions; the issue only seems to show up
with 64-bit comparisons where the result is zero-extended. I added some
extra testcases in case that changes in the future. Probably some
optimization opportunities here if anyone is interested. (@test_slt_not
is the case that was getting miscompiled.)

The code to check the liveness of CPSR was stolen from
X86ISelLowering.cpp; maybe it could be refactored into common helper,
but I have no idea where to put it.

Differential Revision: https://reviews.llvm.org/D54192

llvm-svn: 346355
2018-11-07 21:08:13 +00:00
benchmarks Pull google/benchmark library to the LLVM tree 2018-08-28 09:42:41 +00:00
bindings [TI removal] Remove TerminatorInst references from bindings. 2018-10-18 07:40:03 +00:00
cmake [CMake] Expose opt-remark tooling through libOptRemarks.dylib 2018-11-05 11:57:44 +00:00
docs AMDGPU/Docs: Add product names for Vega20 2018-11-07 20:54:16 +00:00
examples [BuildingAJIT] Update the Ch1 KaleidoscopeJIT class to expose errors to clients. 2018-10-18 00:51:38 +00:00
include Allow subclassing ExternalAA 2018-11-07 20:26:42 +00:00
lib [ARM] Fix CPSR liveness in tMOVCCr_pseudo lowering. 2018-11-07 21:08:13 +00:00
projects [cmake] Support moving debuginfo-tests to llvm/projects 2017-12-12 17:06:08 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
runtimes Revert "[CMake] Pass Clang defaults to runtimes builds" 2018-07-13 20:01:55 +00:00
test [ARM] Fix CPSR liveness in tMOVCCr_pseudo lowering. 2018-11-07 21:08:13 +00:00
tools [llvm-mca] Move the AssembleInput logic into its own class. 2018-11-07 19:20:04 +00:00
unittests Fix unit tests after patch https://reviews.llvm.org/rL346313 2018-11-07 14:46:26 +00:00
utils [FileCheck] Parse command-line options from FILECHECK_OPTS 2018-11-06 22:07:03 +00:00
.arcconfig [llvm] Set up .arcconfig to point to Diffusion L repository 2018-01-12 15:37:41 +00:00
.clang-format
.clang-tidy .clang-tidy: correct style name is 'camelBack' not 'lowerCase'. 2016-09-13 19:04:26 +00:00
.gitattributes [DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. 2018-05-09 02:40:45 +00:00
.gitignore [git/svn] Ignore Visual Studio's CMakeSettings.json. 2018-10-29 14:51:02 +00:00
CMakeLists.txt [cmake] Fix typo. NFC 2018-11-07 02:22:59 +00:00
CODE_OWNERS.TXT Add owner for llvm-objcopy 2018-08-09 22:05:19 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT It's a test commit, which is my first commit and also add my name to CREDITS.TXT 2018-11-06 03:07:03 +00:00
LICENSE.TXT Update copyright year to 2018. 2018-06-18 12:22:17 +00:00
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 Test commit. 2018-09-22 01:01:03 +00:00
RELEASE_TESTERS.TXT Remove myself from the release testers list. (NFC) 2018-06-20 21:25:50 +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.