llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-08-26 23:29:22 +00:00

LLVM backend for 6502

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Andrew Trick e0ef509aeb Increased the register pressure limit on x86_64 from 8 to 12 regs. This is the only change in this checkin that may affects the default scheduler. With better register tracking and heuristics, it doesn't make sense to artificially lower the register limit so much. Added -sched-high-latency-cycles and X86InstrInfo::isHighLatencyDef to give the scheduler a way to account for div and sqrt on targets that don't have an itinerary. It is currently defaults to 10 (the actual number doesn't matter much), but only takes effect on non-default schedulers: list-hybrid and list-ilp. Added several heuristics that can be individually disabled for the non-default sched=list-ilp mode. This helps us determine how much better we can do on a given benchmark than the default scheduler. Certain compute intensive loops run much faster in this mode with the right set of heuristics, and it doesn't seem to have much negative impact elsewhere. Not all of the heuristics are needed, but we still need to experiment to decide which should be disabled by default for sched=list-ilp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127067 91177308-0d34-0410-b5e6-96231b3b80d8		2011-03-05 08:00:22 +00:00
autoconf	lib/Support/Errno.cpp: Check strerror_s() with HAVE_DECL_STRERROR_S in config.h.*.	2011-02-09 04:18:48 +00:00
bindings	Fix compiling the ocaml kaleidoscope tutorials	2011-02-09 18:32:02 +00:00
cmake	Support for parallel compilation (/MP) when using the VS IDE.	2011-03-02 17:47:37 +00:00
docs	remove jeff's name (by his request)	2011-03-05 07:23:02 +00:00
examples	Fix compiling the ocaml kaleidoscope tutorials	2011-02-09 18:32:02 +00:00
include	Increased the register pressure limit on x86_64 from 8 to 12	2011-03-05 08:00:22 +00:00
lib	Increased the register pressure limit on x86_64 from 8 to 12	2011-03-05 08:00:22 +00:00
projects	Regen configure	2010-12-12 21:42:01 +00:00
runtime	Implementation of path profiling.	2011-01-29 01:09:53 +00:00
test	Thread comparisons over udiv/sdiv/ashr/lshr exact and lshr nuw/nsw whenever	2011-03-05 05:19:11 +00:00
tools	Add a special streamer to libLTO that just records symbols definitions and	2011-03-02 04:14:42 +00:00
unittests	Fixes warnings emitted by Visual Studio 2010 compiler.	2011-03-01 23:11:57 +00:00
utils	Fix the case where the number of jobs is less than the	2011-03-04 23:02:52 +00:00
website
.gitignore	Cleanup and document .gitignore.	2010-12-17 17:22:50 +00:00
build-for-llvm-top.sh
CMakeLists.txt	Cmake fix for option defaults not being set correctly on first run	2011-03-01 22:31:19 +00:00
configure	lib/Support/Errno.cpp: Check strerror_s() with HAVE_DECL_STRERROR_S in config.h.*.	2011-02-09 04:18:48 +00:00
CREDITS.TXT	Another git svn dcommit test. This time let's hope it doesn't kill my repo.	2010-12-10 14:45:10 +00:00
LICENSE.TXT
llvm.spec.in
Makefile	Merge System into Support.	2010-11-29 18:16:10 +00:00
Makefile.common
Makefile.config.in	autoconf: Add --disable-embed-stdcxx to suppress linking libstdc++.a into llvm.dll with --enable-shared on Cygming.	2010-12-29 03:59:14 +00:00
Makefile.rules	Better OpenBSD support, patch by Amit Kulkarni. I have no way to test	2011-02-21 18:38:56 +00:00
ModuleInfo.txt	Remove trailing space. This is just an excuse to poke the	2010-10-05 20:32:15 +00:00
README.txt	Test commit.	2011-02-11 19:11:57 +00:00

README.txt

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