[Bug rtl-optimization/70784] Merge multiple short stores of immediates into wider stores

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70784

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Also note that finding the heuristics when to use this (for -Os it is of course
clearer) is hard, if the pointer is sufficiently aligned or if the target is
strict alignment it is of course easier.  And the RTL DSE patch caused some
SPEC regressions on powerpc*.