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Mirror of https://github.com/RPCS3/llvm-mirror
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Chris Lattner 5ce3e42d80 Make simplifycfg reprocess newly formed "br (cond1 | cond2)" conditions 
when simplifying, allowing them to be eagerly turned into switches.  This
is the last step required to get "Example 7" from this blog post:
http://blog.regehr.org/archives/320

On X86, we now generate this machine code, which (to my eye) seems better
than the ICC generated code:

_crud:                                  ## @crud
## BB#0:                                ## %entry
	cmpb	$33, %dil
	jb	LBB0_4
## BB#1:                                ## %switch.early.test
	addb	$-34, %dil
	cmpb	$58, %dil
	ja	LBB0_3
## BB#2:                                ## %switch.early.test
	movzbl	%dil, %eax
	movabsq	$288230376537592865, %rcx ## imm = 0x400000017001421
	btq	%rax, %rcx
	jb	LBB0_4
LBB0_3:                                 ## %lor.rhs
	xorl	%eax, %eax
	ret
LBB0_4:                                 ## %lor.end
	movl	$1, %eax
	ret

llvm-svn: 121690
2010-12-13 07:00:06 +00:00
autoconf Use GZIPBIN instead of GZIP. Apparently gzip uses GZIP as an environment 2010-12-10 01:31:51 +00:00
bindings Try to fix ocaml bindings. 2010-10-08 00:36:21 +00:00
cmake Reverting commit to LLVMLibDeps that was inadvertently done in 121649. 2010-12-12 22:28:51 +00:00
docs further fixes. 2010-12-13 00:17:12 +00:00
examples Fix missing includes of "llvm/Analysis/Passes.h" in the tutorials. Thanks 2010-11-16 17:28:22 +00:00
include Introduce a new PartialAlias response for AliasAnalysis. For most 2010-12-10 19:38:58 +00:00
lib Make simplifycfg reprocess newly formed "br (cond1 | cond2)" conditions 2010-12-13 07:00:06 +00:00
projects Regen configure 2010-12-12 21:42:01 +00:00
runtime Rename 'libprofile/exported_symbols.lst' to 'libprofile/libprofile.exports'. 2010-09-03 15:42:45 +00:00
test Make simplifycfg reprocess newly formed "br (cond1 | cond2)" conditions 2010-12-13 07:00:06 +00:00
tools macho-dump: Fix CMake build, following up to r121466. 2010-12-10 09:18:26 +00:00
unittests Support/PathV2: Change most functions in the path namespace to return their work 2010-12-07 17:04:04 +00:00
utils Add support for using the `!if' operator when initializing variables: 2010-12-13 01:46:19 +00:00
website
build-for-llvm-top.sh
CMakeLists.txt CMake: Add FileUpdate to the build. 2010-12-09 17:54:44 +00:00
configure Use GZIPBIN instead of GZIP. Apparently gzip uses GZIP as an environment 2010-12-10 01:31:51 +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 Use GZIPBIN instead of GZIP. Apparently gzip uses GZIP as an environment 2010-12-10 01:31:51 +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 

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

This directory and its subdirectories contain source code for the Low Level
Virtual Machine, a toolkit for the construction of highly optimized compilers,
optimizers, and runtime environments.

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

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

If you're writing a package for LLVM, see docs/Packaging.html for our
suggestions.