Uyiosa Iyekekpolor 994a6a39e1

[VectorCombine] Fix scalarizeExtExtract for big-endian (#157962) ...

The scalarizeExtExtract transform assumed little-endian lane ordering,
causing miscompiles on big-endian targets such as AIX/PowerPC under -O3
-flto.

This patch updates the shift calculation to handle endianness correctly
for big-endian targets. No functional change
for little-endian targets.

Fixes #158197.

---------

Co-authored-by: Simon Pilgrim <llvm-dev@redking.me.uk>

2025-09-15 10:08:16 +00:00

..

lit.local.cfg

…

scalarize-ext-extract.ll

…