LLVM backend for 6502
Go to file
Bob Wilson fe61fb1e10 Add a new pass on machine instructions to optimize away PHI cycles that
reduce down to a single value.  InstCombine already does this transformation
but DAG legalization may introduce new opportunities.  This has turned out to
be important for ARM where 64-bit values are split up during type legalization:
InstCombine is not able to remove the PHI cycles on the 64-bit values but
the separate 32-bit values can be optimized.  I measured the compile time 
impact of this (running llc on 176.gcc) and it was not significant.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95951 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-12 01:30:21 +00:00
autoconf Make --disable-libffi work on systems with libffi installed. Also 2010-02-09 23:03:44 +00:00
bindings fix llvm_build_struct_gep for PR6167, patch by 2010-02-09 01:39:46 +00:00
cmake Update CMake LibDeps 2010-01-22 18:14:14 +00:00
docs Add a new function attribute, 'alignstack'. It will indicate (when the backends 2010-02-12 00:31:15 +00:00
examples Make Kaleidoscope not link against the interpreter, since that didn't 2010-02-11 19:15:20 +00:00
include Add a new pass on machine instructions to optimize away PHI cycles that 2010-02-12 01:30:21 +00:00
lib Add a new pass on machine instructions to optimize away PHI cycles that 2010-02-12 01:30:21 +00:00
projects Oops. 2010-02-09 17:24:21 +00:00
runtime remove the random sampling framework, which is not maintained anymore. 2010-01-02 20:07:03 +00:00
test Add a new pass on machine instructions to optimize away PHI cycles that 2010-02-12 01:30:21 +00:00
tools Add support to llvm-extract for extracting multiple functions and/or 2010-02-10 23:58:53 +00:00
unittests Fix (harmless) memory leak found by memcheck. 2010-02-11 07:16:13 +00:00
utils enhance llvm-mc -show-inst to print the enum of an instruction, like so: 2010-02-11 22:57:32 +00:00
website
Xcode
build-for-llvm-top.sh
CMakeLists.txt CMake: Add MCParser directory. 2010-01-22 02:04:33 +00:00
configure Make --disable-libffi work on systems with libffi installed. Also 2010-02-09 23:03:44 +00:00
CREDITS.TXT
LICENSE.TXT 2010 is upon us. 2010-01-09 18:40:31 +00:00
llvm.spec.in
Makefile For 'install-clang' target, also traverse tools/clang/lib/Runtime. 2010-01-20 00:43:07 +00:00
Makefile.common
Makefile.config.in
Makefile.rules Added a custom TableGen backend to support the 2010-01-29 00:21:04 +00:00
ModuleInfo.txt
README.txt test commit. 2010-01-26 19:45:17 +00:00

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.