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Nate Begeman 068e932975 ~40% faster vector shl <4 x i32> on SSE 4.1 Larger improvements for smaller types coming in future patches. For: define <2 x i64> @shl(<4 x i32> %r, <4 x i32> %a) nounwind readnone ssp { entry: %shl = shl <4 x i32> %r, %a ; <<4 x i32>> [#uses=1] %tmp2 = bitcast <4 x i32> %shl to <2 x i64> ; <<2 x i64>> [#uses=1] ret <2 x i64> %tmp2 } We get: _shl: ## @shl pslld $23, %xmm1 paddd LCPI0_0, %xmm1 cvttps2dq %xmm1, %xmm1 pmulld %xmm1, %xmm0 ret Instead of: _shl: ## @shl pshufd $3, %xmm0, %xmm2 movd %xmm2, %eax pshufd $3, %xmm1, %xmm2 movd %xmm2, %ecx shll %cl, %eax movd %eax, %xmm2 pshufd $1, %xmm0, %xmm3 movd %xmm3, %eax pshufd $1, %xmm1, %xmm3 movd %xmm3, %ecx shll %cl, %eax movd %eax, %xmm3 punpckldq %xmm2, %xmm3 movd %xmm0, %eax movd %xmm1, %ecx shll %cl, %eax movd %eax, %xmm2 movhlps %xmm0, %xmm0 movd %xmm0, %eax movhlps %xmm1, %xmm1 movd %xmm1, %ecx shll %cl, %eax movd %eax, %xmm0 punpckldq %xmm0, %xmm2 movdqa %xmm2, %xmm0 punpckldq %xmm3, %xmm0 ret llvm-svn: 109549		2010-07-27 22:37:06 +00:00
autoconf	Try to work around the relative install-sh path problem.	2010-07-22 21:13:40 +00:00
bindings	Implement the "linker_private_weak" linkage type. This will be used for	2010-07-01 21:55:59 +00:00
cmake	Don't link against libm and libpthread which don't exist in BeOS/Haiku. Also,	2010-06-23 06:48:34 +00:00
docs	re-commit r109220, the compile error has already been fixed	2010-07-26 18:48:07 +00:00
examples	Convert some tab stops into spaces.	2010-07-12 08:16:59 +00:00
include	remove bogus assert, use static_cast for additional checking	2010-07-27 21:46:11 +00:00
lib	~40% faster vector shl <4 x i32> on SSE 4.1 Larger improvements for smaller types coming in future patches.	2010-07-27 22:37:06 +00:00
projects	Remove bogus link.	2010-07-16 06:33:36 +00:00
runtime	Delete a blank line.	2010-04-16 13:32:55 +00:00
test	~40% faster vector shl <4 x i32> on SSE 4.1 Larger improvements for smaller types coming in future patches.	2010-07-27 22:37:06 +00:00
tools	Clone and restore the module being reduced in	2010-07-26 00:07:51 +00:00
unittests	missed a use of SizeRequired.	2010-07-22 21:34:55 +00:00
utils	Return -1 only on failure to execute a program.	2010-07-27 11:19:36 +00:00
website
build-for-llvm-top.sh	Patch to build llvm with srcdir != objdir from	2009-01-23 08:42:38 +00:00
CMakeLists.txt	start straightening out libedis's dependencies and make it fit	2010-07-20 18:25:19 +00:00
configure	Regenerate.	2010-07-22 21:13:48 +00:00
CREDITS.TXT	long past time I added myself to this, I suppose.	2010-07-19 22:04:28 +00:00
LICENSE.TXT	2010 is upon us.	2010-01-09 18:40:31 +00:00
llvm.spec.in
Makefile	Add support for a new Apple-style build target, EmbeddedSim, that builds	2010-07-20 20:44:02 +00:00
Makefile.common	Removed trailing whitespace from Makefiles.	2009-01-09 16:44:42 +00:00
Makefile.config.in	typo in comment, regeneration not necessary	2010-07-07 13:58:46 +00:00
Makefile.rules	Fix library build messages.	2010-07-26 20:15:47 +00:00
ModuleInfo.txt	Patch to build llvm with srcdir != objdir from	2009-01-23 08:42:38 +00:00
README.txt	(Hopefully) One last test.	2010-07-27 00:04:55 +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.