Cameron Zwarich 84986b298a Make more passes preserve dominators (or state that they preserve dominators if ...

they all ready do). This removes two dominator recomputations prior to isel,
which is a 1% improvement in total llc time for 403.gcc.

The only potentially suspect thing is making GCStrategy recompute dominators if
it used a custom lowering strategy.

llvm-svn: 123064

2011-01-08 17:01:52 +00:00

7.1 KiB

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