[Bug target/120888] [16 regression] promotion of unsigned char and short function arguments sign extends them since r16-170-ga670ebde3995

[hjl.tools at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120888

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
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  Attachment #61769|0                           |1
        is obsolete|                            |

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
Created attachment 61770
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61770&action=edit
An updated patch

This patch also promotes 8/16-bit return values.  Please check if it follows
xtensa ABI.