RPCS3/llvm: Old fork of llvm-mirror, used on older RPCS3 builds - llvm

RPCS3/llvm

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Old fork of llvm-mirror, used on older RPCS3 builds

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Keno Fischer cc80af1b4f [FastIsel][X86] Fix invalid register replacement for bool args Summary: Consider the following IR: %3 = load i8* undef %4 = trunc i8 %3 to i1 %5 = call %jl_value_t.0* @foo(..., i1 %4, ...) ret %jl_value_t.0* %5 Bools (that are the result of direct truncs) are lowered as whatever the argument to the trunc was and a "and 1", causing the part of the MBB responsible for this argument to look something like this: %vreg8<def,tied1> = AND8ri %vreg7<kill,tied0>, 1, %EFLAGS<imp-def>; GR8:%vreg8,%vreg7 Later, when the load is lowered, it will insert %vreg15<def> = MOV8rm %vreg14, 1, %noreg, 0, %noreg; mem:LD1[undef] GR8:%vreg15 GR64:%vreg14 but remember to (at the end of isel) replace vreg7 by vreg15. Now for the bug. In fast isel lowering, we mistakenly mark vreg8 as the result of the load instead of the trunc. This adds a fixup to have vreg8 replaced by whatever the result of the load is as well, so we end up with %vreg15<def,tied1> = AND8ri %vreg15<kill,tied0>, 1, %EFLAGS<imp-def>; GR8:%vreg15 which is an SSA violation and causes problems later down the road. This fixes PR21557. Test Plan: Test test case from PR21557 is added to the test suite. Reviewers: ributzka Reviewed By: ributzka Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D6245 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224884 91177308-0d34-0410-b5e6-96231b3b80d8		2014-12-27 13:10:15 +00:00
autoconf	Require python 2.7.	2014-12-12 15:29:31 +00:00
bindings	[OCaml] Expose Llvm_executionengine.get_{global_value,function}_address.	2014-12-24 01:52:51 +00:00
cmake	[cmake] Unbreak LLVM-Config.cmake / llvm_expand_dependencies.	2014-12-18 23:56:52 +00:00
docs	Documentation for Masked Load and Store intrinsics.	2014-12-25 09:29:13 +00:00
examples	Once more on the cmake build. nativecodegen->native on the dependencies.	2014-12-08 18:24:06 +00:00
include	Masked Load/Store - Changed the order of parameters in intrinsics.	2014-12-25 07:49:20 +00:00
lib	[FastIsel][X86] Fix invalid register replacement for bool args	2014-12-27 13:10:15 +00:00
projects
test	[FastIsel][X86] Fix invalid register replacement for bool args	2014-12-27 13:10:15 +00:00
tools	Another attempt to fix the LLVM Windows build bot lld-x86_64-win7, one last place to fix I think.	2014-12-24 00:16:51 +00:00
unittests	Fix a leak found by asan.	2014-12-23 17:20:23 +00:00
utils	Masked Load/Store - Changed the order of parameters in intrinsics.	2014-12-25 07:49:20 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore
CMakeLists.txt	Adding a new option to CMake to disable C++ atexit on llvm-shlib.	2014-12-09 18:49:55 +00:00
CODE_OWNERS.TXT	Add myself as SystemZ code owner	2014-12-18 19:27:50 +00:00
configure	Require python 2.7.	2014-12-12 15:29:31 +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	[TEST-COMMIT] As per Developer Policy, Added a blank line.	2014-12-06 00:38:39 +00:00

README.txt

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

This directory and its subdirectories contain source code for the Low Level
Virtual Machine, 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.