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Michael Kuperstein 72400f8d50 [X86] Fix emitPrologue() to make less assumptions about pushes
When X86FrameLowering::emitPrologue() looks for where to insert the %esp subtraction
to allocate stack space for local allocations, it assumes that any sequence of push
instructions that starts at function entry consists purely of spills of callee-save
registers.
This may be false, since from some point forward, the pushes may pushing arguments
to a subsequent function call.

This caused a miscompile that was exposed by r240257, and is not easily testable
since r240257 was reverted. A test will be committed separately after r240257 is
reapplied.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242395 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-16 12:27:59 +00:00
autoconf Update the trunk version to 3.8.0svn. 2015-07-14 22:35:57 +00:00
bindings Revert "Update LLVM bindings after r239940. ..." 2015-07-16 01:16:39 +00:00
cmake [CMake] Unbreak add_llvm_external_project when external projects are specified. 2015-07-14 05:12:53 +00:00
docs Fix Sphinx error about duplicate label in CommandLine.rst:1560 and CoverageMappingFormat.rst 2015-07-14 23:29:53 +00:00
examples Simplify the Mangler interface now that DataLayout is mandatory. 2015-06-23 13:59:29 +00:00
include Revert "Make ExecutionEngine owning a DataLayout" 2015-07-16 12:20:31 +00:00
lib [X86] Fix emitPrologue() to make less assumptions about pushes 2015-07-16 12:27:59 +00:00
projects build: make libunwind a proper project 2015-04-25 01:47:39 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
test Revert "[X86] Allow more call sequences to use push instructions for argument passing" 2015-07-16 01:30:00 +00:00
tools For new archive member we only need to store the full path. 2015-07-15 22:46:53 +00:00
unittests [ExecutionEngine] Re-apply r241962 with fixes for ARM. 2015-07-14 22:11:10 +00:00
utils Move most user of TargetMachine::getDataLayout to the Module one 2015-07-16 06:11:10 +00:00
.arcconfig Updated phabricator server. 2014-04-07 03:57:04 +00:00
.clang-format
.clang-tidy Enable display of compiler diagnostics in clang-tidy by default. 2014-10-29 17:29:38 +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 Update the trunk version to 3.8.0svn. 2015-07-14 22:35:57 +00:00
CODE_OWNERS.TXT [WebAssembly] Initial WebAssembly backend 2015-06-29 23:51:55 +00:00
configure Update the trunk version to 3.8.0svn. 2015-07-14 22:35:57 +00:00
CREDITS.TXT [WebAssembly] Initial WebAssembly backend 2015-06-29 23:51:55 +00:00
LICENSE.TXT Update for a new year. 2015-03-12 01:25:29 +00:00
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in Disallow in-source builds (as we already do for the cmake build). 2015-07-01 18:09:21 +00:00
Makefile.rules Add support for SunOS function/data sections and associated 2015-03-03 20:54:29 +00:00
README.txt Revert test commit at revision 233535. 2015-03-30 12:39:03 +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're writing a package for LLVM, see docs/Packaging.rst for our
suggestions.