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LLVM backend for 6502
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003a09c68d
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John McCall 003a09c68d Substantially optimize APFloat::toString() by doing a single large divide to 
cut the significand down to the desired precision *before* entering the
core divmod loop.  Makes the overall algorithm logarithmic in the exponent.

There's still a lot of room for improvement here, but this gets the
performance back down to acceptable-for-diagnostics levels, even for
long doubles.
negligible, even on long doubles.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92130 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-24 12:16:56 +00:00
autoconf Fix typos. Thanks to John Tytgat for noticing it! 2009-12-07 00:27:35 +00:00
bindings Fix another parallel make race condition. 2009-12-18 20:12:14 +00:00
cmake CMake: Update lib deps. 2009-12-19 21:27:30 +00:00
docs Regenerate. 2009-12-23 12:49:51 +00:00
examples fix PR5649 by making fib use the JIT instead of the interpreter, patch by Perry Lorier! 2009-12-01 01:56:27 +00:00
include Add accessors for the largest-magnitude, smallest-magnitude, and 2009-12-24 08:56:26 +00:00
lib Substantially optimize APFloat::toString() by doing a single large divide to 2009-12-24 12:16:56 +00:00
projects Move DataTypes.h to include/llvm/System, update all users. This breaks the last 2009-10-26 01:35:46 +00:00
runtime OptimalEdgeProfiling: Creation of profiles. 2009-09-01 19:03:44 +00:00
test Testcase for llvm-gcc checkin 92108. 2009-12-24 01:10:43 +00:00
tools Fix another -Wmismatched-tags warning 2009-12-23 18:27:13 +00:00
unittests Add accessors for the largest-magnitude, smallest-magnitude, and 2009-12-24 08:56:26 +00:00
utils Cosmetic issue: more consistent naming. 2009-12-23 12:49:41 +00:00
website
Xcode
build-for-llvm-top.sh
CMakeLists.txt Don't default warnings to ON on MSVC, the spew is enough to triple the build time. :/ 2009-12-01 19:11:36 +00:00
configure Fix typos. Thanks to John Tytgat for noticing it! 2009-12-07 00:27:35 +00:00
CREDITS.TXT Add myself to the blame list. 2009-08-20 15:20:15 +00:00
LICENSE.TXT Add regular expression matching support, based on OpenBSD regexec()/regcomp() 2009-08-30 08:24:09 +00:00
llvm.spec.in
Makefile Update install-clang target for clang-cc removal. 2009-12-12 21:17:54 +00:00
Makefile.common
Makefile.config.in Fix typos. Thanks to John Tytgat for noticing it! 2009-12-07 00:27:35 +00:00
Makefile.rules Add the rest of the build system logic for optional target disassemblers 2009-11-25 04:46:58 +00:00
ModuleInfo.txt
README.txt First test commit 2009-10-05 22:29:11 +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.