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Author SHA1 Message Date
Danial Klimkin
9671ed1afc
Revert "LSV: forbid load-cycles when vectorizing; fix bug (#104815)" (#106245) 
This reverts commit c46b41aaa6eaa787f808738d14c61a2f8b6d839f.

Multiple tests time out, either due to performance hit (see comment) or
a cycle.
 2024-08-27 18:45:22 +02:00
Ramkumar Ramachandra
c46b41aaa6
LSV: forbid load-cycles when vectorizing; fix bug (#104815) 
Forbid load-load cycles which would crash LoadStoreVectorizer when
reordering instructions.

Fixes #37865.
 2024-08-22 11:37:19 +01:00
Ramkumar Ramachandra
199d6f2c0c
LSV: document hang reported in #37865 (#102479) 
LoadStoreVectorizer hangs on certain examples, when its reorder function
goes into a cycle. Detect this cycle and explicitly forbid it, using an
assert, and document the resulting crash in a test-case under AArch64.
 2024-08-09 11:34:09 +01:00