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12 Commits

Author SHA1 Message Date
Manman Ren e0763c7472 ARM: optimization for sub+abs. 
This patch will optimize abs(x-y)
FROM
sub, movs, rsbmi
TO
subs, rsbmi

For abs, we will use cmp instead of movs. This is necessary because we already
have an existing peephole pass which optimizes away cmp following sub.

rdar: 11633193
llvm-svn: 158551
 2012-06-15 21:32:12 +00:00
Manman Ren 2764301a77 Revert: test/CodeGen/ARM/iabs.ll in r158441 
Sorry that I accidently checked in this file with my previous commit.

llvm-svn: 158442
 2012-06-14 06:04:02 +00:00
Manman Ren c2bc2d106b InstCombine: fix a bug when combining (fcmp cc0 x, y) && (fcmp cc1 x, y). 
uno && ueq was converted to ueq, it should be converted to uno.

llvm-svn: 158441
 2012-06-14 05:57:42 +00:00
Bill Wendling a7d697e4a6 Reapply r141365 now that PR11107 is fixed. 
llvm-svn: 141591
 2011-10-10 22:59:55 +00:00
Bill Wendling 47aac51043 Revert r141365. It was causing MultiSource/Benchmarks/MiBench/consumer-lame to 
hang, and possibly SPEC/CINT2006/464_h264ref.

llvm-svn: 141560
 2011-10-10 18:27:30 +00:00
Anton Korobeynikov 318d6bae80 Peephole optimization for ABS on ARM. 
Patch by Ana Pazos!

llvm-svn: 141365
 2011-10-07 16:15:08 +00:00
Evan Cheng 8b2bda09a5 Change some ARM subtarget features to be single bit yes/no in order to sink them down to MC layer. Also fix tests. 
llvm-svn: 134590
 2011-07-07 03:55:05 +00:00
Chris Lattner ae67ca33ed convert to filecheck. 
llvm-svn: 95608
 2010-02-08 23:47:34 +00:00
Dan Gohman c8054d90fb Eliminate more uses of llvm-as and llvm-dis. 
llvm-svn: 81293
 2009-09-09 00:09:15 +00:00
Evan Cheng d76d0aa68a Move thumb and thumb2 tests into separate directories. 
llvm-svn: 74068
 2009-06-24 06:36:07 +00:00
Reid Spencer 86f337eeda For PR1319: 
Fix test syntax per new rules.

llvm-svn: 36133
 2007-04-16 15:15:52 +00:00
Chris Lattner 9f780e339e new testcases for integer abs function 
llvm-svn: 35880
 2007-04-11 05:02:57 +00:00