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LLVM backend for 6502
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ebed6de7b1
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Cameron Zwarich ebed6de7b1 Eliminate the use of dominance frontiers in PromoteMemToReg. In addition to 
eliminating a potentially quadratic data structure, this also gives a 17%
speedup when running -scalarrepl on test-suite + SPEC2000 + SPEC2006. My initial
experiment gave a greater speedup around 25%, but I moved the dominator tree
level computation from dominator tree construction to PromoteMemToReg.

Since this approach to computing IDFs has a much lower overhead than the old
code using precomputed DFs, it is worth looking at using this new code for the
second scalarrepl pass as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123609 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-17 01:08:59 +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 Make config.h.cmake similar to config.h.in 2011-01-15 13:35:37 +00:00
docs Add a clarification about merging constants with and without unnamed_addr. 2011-01-15 08:20:57 +00:00
examples Do not re-test for the existence of pthread.h. 2010-12-23 21:27:22 +00:00
include Eliminate the use of dominance frontiers in PromoteMemToReg. In addition to 2011-01-17 01:08:59 +00:00
lib Eliminate the use of dominance frontiers in PromoteMemToReg. In addition to 2011-01-17 01:08:59 +00:00
projects Regen configure 2010-12-12 21:42:01 +00:00
runtime
test Test for lazy value info's ability to prove the absense of NULLs in pointers. 2011-01-16 21:57:20 +00:00
tools Fix memory leak found by clang static analyzer. 2011-01-14 22:34:17 +00:00
unittests Unittests/Support/Path: Tweak test. 2011-01-15 18:52:49 +00:00
utils Fix some tablegen issues to allow using zero_reg for InstAlias definitions. 2011-01-14 22:58:09 +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
README.txt

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