https://gcc.gnu.org/bugzilla/show_bug.cgi?id=29970
Martin Uecker <muecker at gwdg dot de> changed:
What |Removed |Added
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CC| |muecker at gwdg dot de
--- Comment #8 from Martin Uecker <muecker at gwdg dot de> ---
So according to my amateurish analysis, there seem to be at least three
underlying issues:
- gimplify_compound_lval size expressions are gimplified too early. This
patch attempts to address this:
https://gcc.gnu.org/pipermail/gcc-patches/2021-August/576484.html
- inside sizeof, this seems to be a FE problem as the information from the
statement expression is lost.
- and then there is another issue, when a variably-sized object (but not a
pointer to it) is returned from the statement expression
