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| author | David Green <david.green@arm.com> | 2023-06-26 22:41:18 +0100 |
|---|---|---|
| committer | David Green <david.green@arm.com> | 2023-06-26 22:41:18 +0100 |
| commit | aaca8e2c3489652ebdf27712ab396984fa577c1e (patch) | |
| tree | 354f4aff929429fe2f25f9fc4bd82c1d6da4e880 /lldb/packages/Python/lldbsuite/test/lldbtest.py | |
| parent | 939c03512d26b053196b9819bb64830482eab777 (diff) | |
| download | llvm-aaca8e2c3489652ebdf27712ab396984fa577c1e.zip llvm-aaca8e2c3489652ebdf27712ab396984fa577c1e.tar.gz llvm-aaca8e2c3489652ebdf27712ab396984fa577c1e.tar.bz2 | |
[AArch64] Don't recreate nodes in tryCombineLongOpWithDup
If we don't find a node with either operand through
isEssentiallyExtractHighSubvector, there is little point
recreating the node with the same operands. Returning
SDValue better communicates that no changes were made.
This fixes #63491 by not recreating uabd nodes with swapped
operands. As noted in the ticket there are other fixes that
might be useful to make too, but this should prevent the
infinite combine.
Diffstat (limited to 'lldb/packages/Python/lldbsuite/test/lldbtest.py')
0 files changed, 0 insertions, 0 deletions