https://bugs.kde.org/show_bug.cgi?id=430354
Mark Wielaard <m...@klomp.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REPORTED |RESOLVED
Resolution|--- |FIXED
--- Comment #3 from Mark Wielaard <m...@klomp.org> ---
commit ab257bc49a6c8beefa794470446f917ec441f718
Author: Mark Wielaard <m...@klomp.org>
Date: Tue Dec 15 11:49:58 2020 +0100
ppc stxsibx and stxsihx instructions write too much data
stxsibx (Store VSX Scalar as Integer Byte Indexed X-form) is implemented
by first reading a whole word, merging in the new byte, and then writing
out the whole word. Causing memcheck to warn when the destination might
have room for less than 8 bytes.
The stxsihx (Store VSX Scalar as Integer Halfword Indexed X-form)
instruction does something similar reading and then writing a full
word instead of a half word.
The code can be simplified (and made more correct) by storing the byte
(or half-word) directly, IRStmt_Store seems fine to store byte or half
word sized data, and so seems the ppc backend.
https://bugs.kde.org/show_bug.cgi?id=430354
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