| commit | 16bb45c5c8e918efa732fd7d0b31c0f31dc2a979 | [log] [tgz] |
|---|---|---|
| author | Andrew Trick <atrick@apple.com> | Wed Sep 04 21:00:11 2013 +0000 |
| committer | Andrew Trick <atrick@apple.com> | Wed Sep 04 21:00:11 2013 +0000 |
| tree | 0f6895cd75b8fcf0653b00ede2da3171b8db98e4 | |
| parent | d1d0d37a198df718b0fd1f838b7d9593b1636299 [diff] |
mi-sched: Suppress register pressure tracking when the scheduling window is too small. If the instruction window is < NumRegs/2, pressure tracking is not likely to be effective. The scheduler has to process a very large number of tiny blocks. We want this to be fast. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189991 91177308-0d34-0410-b5e6-96231b3b80d8