llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-13 04:30:23 +00:00

LLVM backend for 6502

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Jakob Stoklund Olesen 22a1df6bf2 Keep track of which stage produced a live range, and bypass earlier stages when revisiting. This effectively disables the 'turbo' functionality of the greedy register allocator where all new live ranges created by splitting would be reconsidered as if they were originals. There are two reasons for doing this, 1. It guarantees that the algorithm terminates. Early versions were prone to infinite looping in certain corner cases. 2. It is a 2x speedup. We can skip a lot of unnecessary interference checks that won't lead to good splitting anyway. The problem is that region splitting only gets one shot, so it should probably be changed to target multiple physical registers at once. Local live range splitting is still 'turbo' enabled. It only accounts for a small fraction of compile time, so it is probably not necessary to do anything about that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126781 91177308-0d34-0410-b5e6-96231b3b80d8		2011-03-01 21:10:07 +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	Added missing va_end().	2011-03-01 18:00:49 +00:00
docs	Update the documentation on "How to Release LLVM". It lays out a new way of	2011-02-28 01:10:44 +00:00
examples	Fix compiling the ocaml kaleidoscope tutorials	2011-02-09 18:32:02 +00:00
include	Revert PathV2 changes, as sys::fs::unique_file is not finished yet.	2011-03-01 19:50:55 +00:00
lib	Keep track of which stage produced a live range, and bypass earlier stages when revisiting.	2011-03-01 21:10:07 +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	Make InstCombiner::FoldAndOfICmps create a ConstantRange that's the	2011-03-01 15:05:01 +00:00
tools	Gold now rescans archives as needed, so the pass-through options are not	2011-02-27 20:30:22 +00:00
unittests	Simplify RecursivelyDeleteDeadPHINode. The only functionality change	2011-02-21 16:27:36 +00:00
utils	trailing whitespace.	2011-03-01 01:39:05 +00:00
website
.gitignore	Cleanup and document .gitignore.	2010-12-17 17:22:50 +00:00
build-for-llvm-top.sh
CMakeLists.txt	Install include/llvm/Support/LICENSE.TXT. PR9321.	2011-02-27 13:32:50 +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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