6 Commits

Author	SHA1	Message	Date
Bob Wilson	f6a4d3c2f3	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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129772 91177308-0d34-0410-b5e6-96231b3b80d8	2011-04-19 18:11:45 +00:00
Jim Grosbach	7ec7a0e96b	switch the flag for using NEON for SP floating point to a subtarget 'feature'. ... Re-commit. This time complete with testsuite updates. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99570 91177308-0d34-0410-b5e6-96231b3b80d8	2010-03-25 23:47:34 +00:00
Jim Grosbach	e5165490b7	Use Unified Assembly Syntax for the ARM backend. ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86494 91177308-0d34-0410-b5e6-96231b3b80d8	2009-11-09 00:11:35 +00:00
David Goodwin	9843a93e83	Remove neonfp attribute and instead set default based on CPU string. Add -arm-use-neon-fp to override the default. ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83218 91177308-0d34-0410-b5e6-96231b3b80d8	2009-10-01 22:19:57 +00:00
Dan Gohman	fce288fc91	Eliminate more uses of llvm-as and llvm-dis. ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81293 91177308-0d34-0410-b5e6-96231b3b80d8	2009-09-09 00:09:15 +00:00
Chris Lattner	d3fe75e2bf	now that these are in file-check format, we can merge them together ... into one bigger test (which runs faster) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78672 91177308-0d34-0410-b5e6-96231b3b80d8	2009-08-11 15:54:17 +00:00