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LLVM backend for 6502
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11b4505899
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Benjamin Kramer 11b4505899 LiveVariables: Compute a set of defs and kills to speed up updating LV during critical edge splitting. 
Previously we checked if the register is def'd in a block via the def/use list a
nd walked the list of kills to check if the register is killed in a block. Both
of these checks can be made much cheaper by walking the block first and
recording all defs and kills.

This reduces the compile time of the test case from PR13651 from 40s to 15s at
-O2. The compile time is still dominated by LV updating but now the main culprit
is SparseBitVector's slowness.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163478 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-09 11:56:14 +00:00
autoconf Temporarily revert this to bring back the bots. 2012-08-28 01:17:46 +00:00
bindings add support for ocaml 3.12 2012-09-02 14:42:56 +00:00
cmake Fix Android build of gtest and lib/Support. 2012-09-04 09:14:45 +00:00
docs Add a new optimization pass: Stack Coloring, that merges disjoint static allocations (allocas). Allocas are known to be 2012-09-06 09:17:37 +00:00
examples
include Add operator< for FoldingSetNodeID. 2012-09-08 04:25:29 +00:00
lib LiveVariables: Compute a set of defs and kills to speed up updating LV during critical edge splitting. 2012-09-09 11:56:14 +00:00
projects Enable recursing into the compiler-rt projcet with the CMake build. 2012-08-29 00:38:02 +00:00
runtime libprofile: [CMake] Let libprofile_rt be not loadable_module but shared library. Autoconf's one does so. 2012-08-29 00:37:51 +00:00
test Add instruction selection for ffloor of vectors when SSE4.1 or AVX is enabled. 2012-09-08 17:42:27 +00:00
tools Don't include stdint.h directly. 2012-09-06 22:55:11 +00:00
unittests ADTTests: [CMake] Exclude DenseMapTest.cpp and SmallVectorTest.cpp on MSVC9 due to its bug. 2012-08-30 16:22:32 +00:00
utils lit: Util.which(): Use os.path.isfile() instead of os.path.exists(), or it hits to the directory. 2012-09-08 12:07:24 +00:00
.gitignore Ignore the documentation-suggested location for compile_commands.json 2012-08-21 19:23:30 +00:00
CMakeLists.txt enable cross compilation with cmake 2012-08-20 19:56:52 +00:00
CODE_OWNERS.TXT
configure Temporarily revert this to bring back the bots. 2012-08-28 01:17:46 +00:00
CREDITS.TXT Add IRC handle entry to CREDITS.TXT as a test commit. 2012-09-07 21:34:50 +00:00
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile darwin/cross-build: Unset SDKROOT when building BuildTools. 2012-08-22 22:01:01 +00:00
Makefile.common
Makefile.config.in Temporarily revert this to bring back the bots. 2012-08-28 01:17:46 +00:00
Makefile.rules Temporarily revert this to bring back the bots. 2012-08-28 01:17:46 +00:00
README.txt test commit 2012-07-11 17:34:12 +00:00

README.txt 

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

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