[Bug middle-end/115863] [15 Regression] zlib-1.3.1 miscompilation since r15-1936-g80e446e829d818

[liuhongt at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115863

Hongtao Liu <liuhongt at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |lin1.hu at intel dot com

--- Comment #16 from Hongtao Liu <liuhongt at gcc dot gnu.org> ---

> Unfortunately, x86 has no vector mode .SAT_TRUNC instruction.
No, AVX512 supports both signed and unsigned saturation
vpmovsdb:vpmovusdb
vpmovsdw:vpmovusdw
vpmovsqb:vpmovusqb
vpmovsqd:vpmovusqd
vpmovsqw:vpmovusqw
vpmovswb:vpmovuswb
vpmovsdb:vpmovusdb

and we're working on a patch to support that.