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Elliot Saba a967752a95 [X86] Don't clobber EBX in stackprobes 
On X86, the stackprobe emission code chooses the `R11D` register, which
is illegal on i686.  This ends up wrapping around to `EBX`, which does
not get properly callee-saved within the stack probing prologue,
clobbering the register for the callers.

We fix this by explicitly using `EAX` as the stack probe register.

Reviewed By: pengfei

Differential Revision: https://reviews.llvm.org/D109203

(cherry picked from commit ae8507b0df738205a6b9e3795ad34672b7499381)
2021-09-10 09:30:52 -07:00
benchmarks
bindings [IR] Rename comdat noduplicates to comdat nodeduplicate 2021-07-20 12:47:10 -07:00
cmake Add llvm-ml to LLVM_TOOLCHAIN_TOOLS (PR50536) 2021-09-08 08:44:45 -07:00
docs [docs] Update release notes with items related to Flang 2021-09-06 14:48:43 +01:00
examples [ORC] Require ExecutorProcessControl when constructing an ExecutionSession. 2021-07-27 16:53:49 +10:00
include [MemCpyOpt] Fix a variety of scalable-type crashes 2021-09-09 16:21:27 -07:00
lib [X86] Don't clobber EBX in stackprobes 2021-09-10 09:30:52 -07:00
projects [RFC][debuginfo-test] Rename debug-info lit tests for general purposes 2021-06-28 11:31:40 +01:00
resources
runtimes [libomptarget][amdcgn] Only add opt/llvm-link dependency if TARGET is available 2021-09-03 15:49:42 -07:00
test [X86] Don't clobber EBX in stackprobes 2021-09-10 09:30:52 -07:00
tools [llvm-objdump] Fix 'llvm-objdump -dr' for executables with relocations 2021-09-08 08:45:39 -07:00
unittests [mlir][openacc] Initial translation for DataOp to LLVM IR 2021-07-27 22:04:04 -04:00
utils [llvm] [lit] Fix inconsistent test order in shtest-keyword-parse-errors 2021-08-06 12:50:56 -07:00
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.clang-tidy NFC: .clang-tidy: Inherit configs from parents to improve maintainability 2021-06-08 08:25:59 -07:00
.gitattributes Fix the "git modified" issue on the preserve-comments-crlf.s. 2019-09-10 12:17:49 +00:00
.gitignore Remove .gitignore entries not relevant in the monorepo. 2021-04-07 12:25:02 -07:00
CMakeLists.txt [CMake] Change -DENABLE_EXPERIMENTAL_NEW_PASS_MANAGER=off to -DLLVM_ENABLE_NEW_PASS_MANAGER=off 2021-08-26 16:40:38 -07:00
CODE_OWNERS.TXT [NFC] Update code owners file 2021-07-20 11:29:10 -07:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT Update personal info in CREDITS.TXT 2021-04-11 19:25:02 +08:00
LICENSE.TXT Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
llvm.spec.in Update structured references to the license to the new license. 2019-01-19 11:30:51 +00:00
README.txt Test commit. 2020-03-14 18:08:26 -07:00
RELEASE_TESTERS.TXT Update the list of platforms & archs 2018-12-16 14:47:16 +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.