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LLVM backend for 6502
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a88d974ce2
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Jakob Stoklund Olesen a88d974ce2 Speed up Value::isUsedInBasicBlock() for long use lists. 
This is expanding Ben's original heuristic for short basic blocks to
also work for longer basic blocks and huge use lists.

Scan the basic block and the use list in parallel, terminating the
search when the shorter list ends. In almost all cases, either the basic
block or the use list is short, and the function returns quickly.

In one crazy test case with very long use chains, CodeGenPrepare runs
400x faster. When compiling ARMDisassembler.cpp it is 5x faster.

<rdar://problem/13840497>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181851 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-14 23:45:56 +00:00
autoconf We're in 3.4 land now. 2013-05-07 20:31:28 +00:00
bindings We're in 3.4 land now. 2013-05-07 20:31:28 +00:00
cmake [SystemZ] Add configure bits 2013-05-06 16:22:34 +00:00
docs Add 'CHECK-DAG' support 2013-05-14 20:34:12 +00:00
examples ExceptionDemo: Corresponding to r181820, SectionMemoryManager should belong to RTDyldMemoryManager. 2013-05-14 23:05:00 +00:00
include SectionMemoryManager shouldn't be a JITMemoryManager. Previously, the 2013-05-14 19:29:00 +00:00
lib Speed up Value::isUsedInBasicBlock() for long use lists. 2013-05-14 23:45:56 +00:00
projects [SystemZ] Add to --enable-targets=all 2013-05-06 16:23:07 +00:00
runtime Remove GCDAProfiling.c. This copy is old, the copy in compiler-rt is newer and 2013-03-07 02:03:08 +00:00
test Object: Fix Mach-O relocation printing. 2013-05-14 22:41:29 +00:00
tools SectionMemoryManager shouldn't be a JITMemoryManager. Previously, the 2013-05-14 19:29:00 +00:00
unittests SectionMemoryManager shouldn't be a JITMemoryManager. Previously, the 2013-05-14 19:29:00 +00:00
utils Add 'CHECK-DAG' support 2013-05-14 20:34:12 +00:00
.arcconfig
.gitignore
CMakeLists.txt Change version to 3.4 in the cmake build too. 2013-05-07 20:44:22 +00:00
CODE_OWNERS.TXT Add myself as SystemZ code owner 2013-05-08 14:41:29 +00:00
configure We're in 3.4 land now. 2013-05-07 20:31:28 +00:00
CREDITS.TXT Test commit. 2013-05-09 12:32:36 +00:00
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
Makefile Improved svn repo searching for 'make update' 2013-01-28 03:19:57 +00:00
Makefile.common
Makefile.config.in Add basic zlib support to LLVM. This would allow to use compression/uncompression in selected LLVM tools. 2013-04-23 08:28:39 +00:00
Makefile.rules Revert previous patch, it's actually on under Wall. 2013-05-14 21:52:01 +00:00
README.txt test 2013-04-17 05:34:03 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
================================

This directory and its subdirectories contain source code for the Low Level
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LLVM is open source software. You may freely distribute it under the terms of
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Please see the documentation provided in docs/ for further
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If you're writing a package for LLVM, see docs/Packaging.rst for our
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