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David Majnemer 7f4aa70ca5 Revert "[X86] Use push-pop for materializing small constants under 'minsize'"
The red zone consists of 128 bytes beyond the stack pointer so that the
allocation of objects in leaf functions doesn't require decrementing
rsp.  In r255656, we introduced an optimization that would cheaply
materialize certain constants via push/pop.  Push decrements the stack
pointer and stores it's result at what is now the top of the stack.
However, this means that using push/pop would encroach on the red zone.
PR26023 gives an example where this corrupts an object in the red zone.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256808 91177308-0d34-0410-b5e6-96231b3b80d8
2016-01-05 02:32:06 +00:00
autoconf [OPENMP] Make -fopenmp to turn on OpenMP support by default. 2015-12-10 05:45:58 +00:00
bindings Deprecate a few C APIs. 2015-12-18 23:46:42 +00:00
cmake win: Pass /W4 in front of all the -wd flags. 2015-12-23 02:38:31 +00:00
docs Update docs to recommend CMake >= v3.2. 2016-01-04 23:22:43 +00:00
examples [Orc] Fix Kaleidoscope example for change in r254693. 2015-12-04 02:32:32 +00:00
include Fix typo in comment 2016-01-05 00:45:31 +00:00
lib Revert "[X86] Use push-pop for materializing small constants under 'minsize'" 2016-01-05 02:32:06 +00:00
projects [CMake] Disable adding the test suite as a projects subdirectory 2015-10-28 18:36:56 +00:00
resources
test Revert "[X86] Use push-pop for materializing small constants under 'minsize'" 2016-01-05 02:32:06 +00:00
tools [llvm-objdump] Mark noreturn function as such. 2015-12-29 13:41:02 +00:00
unittests Add explicit string checks in test 2016-01-04 23:59:14 +00:00
utils [TableGen] Call llvm_shutdown on exit so that all the ManagedStatic objects in the support library will be deleted. 2016-01-04 04:51:51 +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 Generate a clang CompilationDatabase when running CMake 2015-12-16 18:17:45 +00:00
CODE_OWNERS.TXT The PS4 baton passes. 2015-12-19 20:04:03 +00:00
configure [OPENMP] Make -fopenmp to turn on OpenMP support by default. 2015-12-10 05:45:58 +00:00
CREDITS.TXT
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
Makefile
Makefile.common
Makefile.config.in We're actually -Wmissing-field-initializers clean thanks to the cmake 2015-08-07 16:44:47 +00:00
Makefile.rules Create Makefile variables for 'share' and 'libexec' 2015-11-09 16:10:00 +00:00
README.txt Revert previous test commit. 2016-01-04 19:13:29 +00:00

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.