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I'm trying to fix a patch to allow #pixman's #ARM #NEON #assembly code to build with clang. They perform a lot of mechanical changes to switch to the "unified" ARM assembly syntax (`.syntax unified`), supported by both #gcc and #clang.

With clang the code builds but fails 3 of the tests in the test suite with what appear to be unaligned accesses. With gcc, the test suite passes before and after the patches.

I've muddled through as much debugging as I can. Any ideas? https://gitlab.freedesktop.org/pixman/pixman/-/merge_requests/78#note_2078065