http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43655
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
Known to work| |
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> 2010-12-10
19:21:02 UTC ---
The problem is that since 4.5, the:
/* There must be no VDEFs. */
if (gimple_vdef (stmt))
return false;
/* Without alias info we can't move around loads. */
if (gimple_references_memory_p (stmt) && !optimize)
return false;
never return false if !optimize (in 4.4 gimple_references_memory_p was just
checking a bit in gimple stmt).
We know at this point that is_gimple_assign (stmt), what's the best way to
replace the latter check to rule out all memory loads and stores if !optimize?
