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Jakob Stoklund Olesen 320db3f805 Avoid rematerializing a redef immediately after the old def. 
PR14098 contains an example where we would rematerialize a MOV8ri
immediately after the original instruction:

  %vreg7:sub_8bit<def> = MOV8ri 9; GR32_ABCD:%vreg7
  %vreg22:sub_8bit<def> = MOV8ri 9; GR32_ABCD:%vreg7

Besides being pointless, it is also wrong since the original instruction
only redefines part of the register, and the value read by the new
instruction is wrong.

The problem was the LiveRangeEdit::allUsesAvailableAt() didn't
special-case OrigIdx == UseIdx and found the wrong SSA value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166068 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-16 22:51:58 +00:00
autoconf Re-enable support for --program-prefix. 2012-10-01 18:40:32 +00:00
bindings Fix the ocaml binding breakage from TargetData -> DataLayout changes. 2012-10-08 17:06:25 +00:00
cmake [CMake] add_lit_testsuite: EXCLUDE_FROM_ALL excludes the test ${target} out of check-all. 2012-10-10 13:32:55 +00:00
docs Fix a typo in bitcode docs, from 165814. 2012-10-15 16:47:58 +00:00
examples ExceptionDemo.cpp: Use Function::setDoesNotReturn(). Attributes stuff was updated. 2012-10-12 14:11:48 +00:00
include [ms-inline asm] Add the helper function, isParseringInlineAsm(). To be used in a future commit. 2012-10-16 20:16:20 +00:00
lib Avoid rematerializing a redef immediately after the old def. 2012-10-16 22:51:58 +00:00
projects Re-enable support for --program-prefix. 2012-10-01 18:40:32 +00:00
runtime Place temporary LTO files into their own subdirectory. 2012-10-10 05:29:15 +00:00
test Avoid rematerializing a redef immediately after the old def. 2012-10-16 22:51:58 +00:00
tools LTO also needs to initialize the TargetTransform infrastructure. 2012-10-15 22:50:02 +00:00
unittests Fix a bug in the set(I,E)/reset(I,E) methods that I recently added. The boundary condition for checking if I and E were in the same word were incorrect, and, beyond that, the mask computation was not using a wide enough constant. 2012-10-16 06:04:27 +00:00
utils Add an enum for the return and function indexes into the AttrListPtr object. This gets rid of some magic numbers. 2012-10-15 07:29:08 +00:00
.gitignore Add extra vim swap file pattern 2012-10-09 23:48:34 +00:00
CMakeLists.txt Removing dependency on third party library for Intel JIT event support. 2012-09-28 17:35:20 +00:00
CODE_OWNERS.TXT Add the list of code owners to the top level of the LLVM source tree to 2012-07-26 08:04:09 +00:00
configure Re-enable support for --program-prefix. 2012-10-01 18:40:32 +00:00
CREDITS.TXT Move TargetData to DataLayout. 2012-10-08 16:40:38 +00:00
LICENSE.TXT Add YAML parser to Support. 2012-04-03 23:09:22 +00:00
llvm.spec.in Tidy up. s/Low Level Virtual Machine/LLVM/. 2012-01-25 22:00:23 +00:00
LLVMBuild.txt LLVMBuild: Introduce a common section which currently has a list of the 2011-12-12 22:45:54 +00:00
Makefile Remove dead variable. 2012-10-10 18:20:49 +00:00
Makefile.common [docs] Remove unsupported references to ExtraSource variable. 2012-05-15 21:32:27 +00:00
Makefile.config.in Re-enable support for --program-prefix. 2012-10-01 18:40:32 +00:00
Makefile.rules Use MACOSX_DEPLOYMENT_TARGET when it is set. <rdar://problem/12433905> 2012-10-12 21:48:14 +00:00
README.txt test commit 2012-07-11 17:34:12 +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 HTML documentation provided in docs/index.html for further
assistance with LLVM.

If you're writing a package for LLVM, see docs/Packaging.html for our
suggestions.