| commit | 992b451f0837b08961b4aa5dab5e90bc2443b482 | [log] [tgz] |
|---|---|---|
| author | Johannes Doerfert <johannes@jdoerfert.de> | Fri Feb 28 10:14:31 2025 -0800 |
| committer | GitHub <noreply@github.com> | Fri Feb 28 10:14:31 2025 -0800 |
| tree | 0dd8692a6a8f8b0228d6bcab68814ed7532dbe19 | |
| parent | 926600a8051882a2895b98a635aaa41f13c7c4ff [diff] |
[Utils][UnifyLoopExits] Avoid costly updates if nothing changed (#129179) If the ControlFlowHub did not perform any change to the control flow, there is no need to repair SSA, update the loop structure, and verify a bunch of things. This is not completely NFC though, repairSSA introduced PHI nodes with a single entry that are now missing. My code went from 400+ seconds to 1 second, since no loop required the exits to be unified, but there were many "complex" loops.
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