llvm-project

Commit Graph

Author	SHA1	Message	Date
Roman Lebedev	7ef6f01909	[SimplifyCFG] FoldTwoEntryPHINode(): bailout on inverted logical and/or (PR51149) The logical (select) form of and/or will now be a source of problems. We don't really account for it's inverted form, yet it exists, and presumably we should treat it just like non-inverted form: https://alive2.llvm.org/ce/z/BU9AXk https://bugs.llvm.org/show_bug.cgi?id=51149 reports a reportedly-serious perf regression that will hopefully be mitigated by this.	2021-07-22 22:19:34 +03:00
Roman Lebedev	952dc2e561	[NFC][SimplifyCFG] Add some more tests w/ two-entry PHI nodes and	2021-07-22 22:19:34 +03:00

Author

SHA1

Message

Date

Roman Lebedev

7ef6f01909

[SimplifyCFG] FoldTwoEntryPHINode(): bailout on inverted logical and/or (PR51149)

The logical (select) form of and/or will now be a source of problems.
We don't really account for it's inverted form, yet it exists,
and presumably we should treat it just like non-inverted form:
https://alive2.llvm.org/ce/z/BU9AXk

https://bugs.llvm.org/show_bug.cgi?id=51149 reports a reportedly-serious
perf regression that will hopefully be mitigated by this.

2021-07-22 22:19:34 +03:00

Roman Lebedev

952dc2e561

[NFC][SimplifyCFG] Add some more tests w/ two-entry PHI nodes and

2021-07-22 22:19:34 +03:00

2 Commits