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LLVM backend for 6502
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9f946a24d9
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Jakob Stoklund Olesen 9f946a24d9 Fix some scavenger performance issues. 
- Don't call malloc+free in the very hot forward().
- Don't call isTiedToDefOperand().
- Don't create BitVector temporaries.
- Merge DeadRegs into KillRegs.
- Eliminate the early clobber checks, they were irrelevant to scavenging.
- Remove unnecessary code from -Asserts builds.

This speeds up ARM PEI by 3.4x and overall llc -O0 codegen time by 11%.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149189 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-29 01:29:28 +00:00
autoconf comment tweaks 2012-01-26 10:28:58 +00:00
bindings Tidy up. s/Low Level Virtual Machine/LLVM/. 2012-01-25 22:00:23 +00:00
cmake -fvisibility-inlines-hidden is a c++ only option. 2012-01-25 03:39:26 +00:00
docs Tidy up. s/Low Level Virtual Machine/LLVM/. 2012-01-25 22:00:23 +00:00
examples
include Fix some scavenger performance issues. 2012-01-29 01:29:28 +00:00
lib Fix some scavenger performance issues. 2012-01-29 01:29:28 +00:00
projects
runtime
test Ensure .AliasedSymbol() is called on all uses of getSymbol(). Affects ARM and MIPS ELF backends. 2012-01-28 15:58:32 +00:00
tools Better diagnostic for malformed .org assembly directive. 2012-01-27 00:37:08 +00:00
unittests Additional methods for SmallString. 2012-01-24 23:43:59 +00:00
utils Remove Deprecated Features 2012-01-27 23:01:35 +00:00
.gitignore
CMakeLists.txt
configure
CREDITS.TXT
LICENSE.TXT
llvm.spec.in Tidy up. s/Low Level Virtual Machine/LLVM/. 2012-01-25 22:00:23 +00:00
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in
Makefile.rules
README.txt

README.txt 

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

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Please see the HTML documentation provided in docs/index.html for further
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