llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-09 10:31:14 +00:00

LLVM backend for 6502

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Chris Lattner 998ef4a92d switch the second scalarrepl pass to use SSAUpdater. We run two scalarrepl passes: one early in the cleanup code and one late interlaced with the inliner. The second one is important because inlining and other scalar optzns can unpin allocas, allowing them to be split up and promoted. While important for performance, this is also relatively rare, and we would previously force a (non-lazy) computation of DomFrontiers, which happened even if nothing became unpinned. With this patch, the first pass of scalarrepl still promotes the vast bulk of allocas in programs, but hte second pass has changed to use SSAUpdater, which is more "sparse" and lazy. This speeds up opt -O3 time on kimwitu++ (a c++ app) by about 1%. The numbers are interesting: the first pass promotes ~17500 allocas. The second pass promotes about 1600. For non-C++ codes, the compile time win should be greater, because the second pass of scalarrepl does less. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123437 91177308-0d34-0410-b5e6-96231b3b80d8		2011-01-14 08:21:08 +00:00
autoconf	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
bindings	Fix OCaml bindings crash, PR8847.	2010-12-23 15:49:26 +00:00
cmake	Add some platform tests.	2011-01-13 19:17:28 +00:00
docs	Don't document exactly how virtual registers are represented as integers. Code	2011-01-08 23:10:59 +00:00
examples	Do not re-test for the existence of pthread.h.	2010-12-23 21:27:22 +00:00
include	switch the second scalarrepl pass to use SSAUpdater. We run two scalarrepl passes: one	2011-01-14 08:21:08 +00:00
lib	split SROA into two passes: one that uses DomFrontiers (-scalarrepl)	2011-01-14 08:13:00 +00:00
projects	Regen configure	2010-12-12 21:42:01 +00:00
runtime
test	relax testcase a bit.	2011-01-14 07:46:33 +00:00
tools	Little help to debug the bugpoint itself.	2011-01-13 19:48:54 +00:00
unittests	Disable RTTI when building unit tests. This avoids errors at link time.	2011-01-13 15:31:45 +00:00
utils	Add support to the ARM MC infrastructure to support mcr and friends. This requires supporting	2011-01-13 21:46:02 +00:00
website
.gitignore	Cleanup and document .gitignore.	2010-12-17 17:22:50 +00:00
build-for-llvm-top.sh
CMakeLists.txt	Add to the CMake build some options and platform tests supported by	2011-01-11 12:31:54 +00:00
configure	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
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	build: Shared libraries shouldn't used RPATH on Darwin, only main executables	2010-12-08 02:29:26 +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	Undoing test commit blank space.	2010-09-29 17:39:29 +00:00

README.txt

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