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Author SHA1 Message Date
Saleem Abdulrasool 905b6d192c ARM: yet another round of ARM test clean ups 
llvm-svn: 205586
 2014-04-03 23:47:24 +00:00
Manman Ren 1047fe452f TBAA: remove !tbaa from testing cases when they are not needed. 
llvm-svn: 191689
 2013-09-30 18:17:35 +00:00
Andrew Trick 3f423dec77 This test may have been sensitive to the ARM ABI... 
llvm-svn: 187442
 2013-07-30 20:34:59 +00:00
Andrew Trick d9761776bc MI Sched fix: assert "Disconnected LRG within the scheduling region." 
llvm-svn: 187435
 2013-07-30 19:59:08 +00:00
Andrew Trick 85a1d4cbc0 MI Sched: eliminate local vreg copies. 
For now, we just reschedule instructions that use the copied vregs and
let regalloc elliminate it. I would really like to eliminate the
copies on-the-fly during scheduling, but we need a complete
implementation of repairIntervalsInRange() first.

The general strategy is for the register coalescer to eliminate as
many global copies as possible and shrink live ranges to be
extended-basic-block local. The coalescer should not have to worry
about resolving local copies (e.g. it shouldn't attemp to reorder
instructions). The scheduler is a much better place to deal with local
interference. The coalescer side of this equation needs work.

llvm-svn: 180193
 2013-04-24 15:54:43 +00:00