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311077c483
Consider the following innocuous-looking code: pan_merge(packed, vtx->attributes[i], ATTRIBUTE); Under the current implementation, this code is completely broken. Why? The current implemention is a macro which hardcodes the loop index i, which shadows the i used to index attributes. Pull out a helper method so we do the right thing without resulting to further preprocessor abuse (__COUNTER__). While making things more robust, assert the crucial pan_merge invariant that the total size is a multiple of 4; if this fails, the routine risks memory corruption. Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14119> |
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