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Author SHA1 Message Date
Tanya Lattner 48b182c3a4 In r131488 I misunderstood how VREV works. It splits the vector in half and splits each half. Therefore, the real problem was that we were using a VREV64 for a 4xi16, when we should have been using a VREV32. 
Updated test case and reverted change to the PerfectShuffle Table.

llvm-svn: 131529
 2011-05-18 06:42:21 +00:00
Tanya Lattner c7e291b354 vrev is incorrectly defined in the perfect shuffle table. The ordering is backwards (should be 0x3210 versus 0x1032) which exposed a bug when doing a shuffle on a 4xi16. I've attached a test case. 
llvm-svn: 131488
 2011-05-17 20:48:40 +00:00
Jim Grosbach dba47755a0 Teach PerfectShuffle to not generate files with embedded tab characters. 
llvm-svn: 116458
 2010-10-14 00:12:49 +00:00
Anton Korobeynikov 8493c5de0f Provide proper masks for neon perfect shuffle table. 
I definitely need to read documentation better :(

llvm-svn: 82813
 2009-09-25 22:52:29 +00:00
Anton Korobeynikov 9a232f46a8 Add lowering of ARM 4-element shuffles to multiple instructios via perfectshuffle-generated table. 
llvm-svn: 79624
 2009-08-21 12:41:24 +00:00
Anton Korobeynikov 84e24388cd Add simple cost model to perfect shuffle. Currently we're doing just greedy search for cost instead of (proper) dynamic programming approach. 
llvm-svn: 79623
 2009-08-21 12:41:03 +00:00
Anton Korobeynikov b539e06f28 Whitespace cleanup 
llvm-svn: 79618
 2009-08-21 12:39:38 +00:00
Chris Lattner 265fc59cb2 these utils don't need exports. 
llvm-svn: 65559
 2009-02-26 19:02:23 +00:00
Anton Korobeynikov 579f07135a Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings. 
llvm-svn: 47367
 2008-02-20 11:08:44 +00:00
Chris Lattner 8adcd9f32e remove attributions from utils. 
llvm-svn: 45419
 2007-12-29 20:37:13 +00:00
Chris Lattner 8fa21acd25 remove attributions from tools/utils makefiles. 
llvm-svn: 45414
 2007-12-29 20:07:17 +00:00
Reid Spencer 008e65ff96 Set the new NO_INSTALL flag for build-only tools. 
llvm-svn: 33967
 2007-02-06 18:51:28 +00:00
Chris Lattner 16e05c378d silence warning 
llvm-svn: 31402
 2006-11-03 01:45:13 +00:00
Reid Spencer de46e48420 For PR786: 
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.

llvm-svn: 31380
 2006-11-02 20:25:50 +00:00
Chris Lattner aa2372562e Patches to make the LLVM sources more -pedantic clean. Patch provided 
by Anton Korobeynikov!  This is a step towards closing PR786.

llvm-svn: 28447
 2006-05-24 17:04:05 +00:00
Chris Lattner 3db2056315 Fix a build failure on Vladimir's tester. 
llvm-svn: 27785
 2006-04-18 00:21:25 +00:00
Chris Lattner e2e2cc5b28 Encode a cost of zero as a cost of 1. 
llvm-svn: 27745
 2006-04-17 05:25:16 +00:00
Chris Lattner 3dcfef6310 Really, I can count! 
llvm-svn: 27743
 2006-04-17 05:05:52 +00:00
Chris Lattner 895dba9714 assign stable opcodes to the various altivec ops. 
llvm-svn: 27741
 2006-04-17 00:47:18 +00:00
Chris Lattner ac66b4a11d Rename BuildShuffleTable -> PerfectShuffle 
llvm-svn: 27738
 2006-04-17 00:35:34 +00:00
Chris Lattner 156c85ea42 rename the table 
llvm-svn: 27737
 2006-04-17 00:33:35 +00:00
Chris Lattner 2951955da9 Initial checking of a perfect shuffle generation program for 4-element 
Altivec vectors.

llvm-svn: 27736
 2006-04-17 00:30:41 +00:00