Andrew Trick 7155e98904 Convert -enable-sched-cycles and -enable-sched-hazard to -disable
flags. They are still not enable in this revision.

Added TargetInstrInfo::isZeroCost() to fix a fundamental problem with
the scheduler's model of operand latency in the selection DAG.

Generalized unit tests to work with sched-cycles.

llvm-svn: 123969
2011-01-21 05:51:33 +00:00
..
2011-01-17 16:43:30 +00:00
2010-11-15 03:21:41 +00:00