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LLVM backend for 6502
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f2369f2042
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Chris Lattner f2369f2042 when we see a unaligned load from an insufficiently aligned global or 
alloca, increase the alignment of the load, turning it into an aligned load.

This allows us to compile:

#include <xmmintrin.h>
__m128i foo(__m128i x){
 static const unsigned int c_0[4] = { 0, 0, 0, 0 };
	  __m128i v_Zero = _mm_loadu_si128((__m128i*)c_0);
  x  = _mm_unpacklo_epi8(x,  v_Zero);
  return x;
}

into:

_foo:
	punpcklbw	_c_0.5944, %xmm0
	ret
	.data
	.lcomm	_c_0.5944,16,4		# c_0.5944

instead of:

_foo:
	movdqu	_c_0.5944, %xmm1
	punpcklbw	%xmm1, %xmm0
	ret
	.data
	.lcomm	_c_0.5944,16,2		# c_0.5944



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40971 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-09 19:05:49 +00:00
autoconf Add detection of __dso_handle presence during configure. Use this information in the 2007-07-30 20:02:02 +00:00
docs Who thought up this crazy formatting scheme? 2007-08-07 17:57:36 +00:00
examples Here is the bulk of the sanitizing. 2007-07-05 17:07:56 +00:00
include Update per review comments. 2007-08-09 17:27:48 +00:00
lib when we see a unaligned load from an insufficiently aligned global or 2007-08-09 19:05:49 +00:00
projects Convert .cvsignore files 2007-06-29 16:35:07 +00:00
runtime crtend is only for llvm-gcc3, remove it. 2007-02-23 19:34:09 +00:00
test when we see a unaligned load from an insufficiently aligned global or 2007-08-09 19:05:49 +00:00
tools Separate program name from error message with a : 2007-08-08 21:19:01 +00:00
utils This resolves a regression of BasicAA which failed to find any memory information for overloaded intrinsics (PR1600). This resolves that issue, and improves the matching scheme to use a BitVector rather than a binary search. 2007-08-06 20:57:16 +00:00
website Prepare for "core" website. 2007-08-03 05:43:35 +00:00
win32 Updates to the VStudio project files: 2007-07-27 18:20:11 +00:00
Xcode Update project 2007-01-29 18:45:08 +00:00
build-for-llvm-top.sh Update for changes in library.sh 2007-07-21 09:33:41 +00:00
configure Regenerate for __dso_handle, per Anton's request. 2007-07-30 20:13:24 +00:00
CREDITS.TXT Record my recent work. 2007-07-05 16:56:24 +00:00
LICENSE.TXT bzip2 is gone 2007-05-06 23:18:44 +00:00
llvm.spec.in * llvm.spec.in: update blurb 2007-07-13 09:48:29 +00:00
Makefile Get rid of annoying spaces. 2007-07-11 23:44:08 +00:00
Makefile.common Update comments to reflect new variable names. Patch contributed by 2005-02-14 16:02:19 +00:00
Makefile.config.in Change the place where man pages are installed to ${prefix}/share/man1. This 2007-07-03 23:04:11 +00:00
Makefile.rules Restore ability to build archives (oops) 2007-07-23 08:20:46 +00:00
ModuleInfo.txt Update to include clean and install commands. 2007-07-20 20:54:41 +00:00
README.txt test 2007-04-20 20:49:25 +00:00

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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