wangtao
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
105,289 Commits 29 Branches 0 Tags 2.2 GiB
Commit Graph

6 Commits

Author SHA1 Message Date
Bob Wilson df612ba006 Avoid write-after-write issue hazards for Cortex-A9. 
Add a avoidWriteAfterWrite() target hook to identify register classes that
suffer from write-after-write hazards. For those register classes, try to avoid
writing the same register in two consecutive instructions.

This is currently disabled by default.  We should not spill to avoid hazards!
The command line flag -avoid-waw-hazard can be used to enable waw avoidance.

llvm-svn: 129772
 2011-04-19 18:11:45 +00:00
Jim Grosbach 71fcb4fedd switch the flag for using NEON for SP floating point to a subtarget 'feature'. 
Re-commit. This time complete with testsuite updates.

llvm-svn: 99570
 2010-03-25 23:47:34 +00:00
Jim Grosbach d7cf55cd0e Use Unified Assembly Syntax for the ARM backend. 
llvm-svn: 86494
 2009-11-09 00:11:35 +00:00
David Goodwin 1cc6dd97da Remove neonfp attribute and instead set default based on CPU string. Add -arm-use-neon-fp to override the default. 
llvm-svn: 83218
 2009-10-01 22:19:57 +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
Chris Lattner 0c533d909a now that these are in file-check format, we can merge them together 
into one bigger test (which runs faster)

llvm-svn: 78672
 2009-08-11 15:54:17 +00:00