http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55448
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2012-11-23 CC| |jakub at gcc dot gnu.org, | |jamborm at gcc dot gnu.org Ever Confirmed|0 |1 --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-11-23 17:28:01 UTC --- The low alignment originates from eipa_sra, foo isn't still in SSA form, and ipa_modify_call_arguments computes align and misalign of base, which is PARM_DECL (of REFERENCE_TYPE, referencing __m256 with 256-bit alignment). But get_pointer_alignment_1 for PARM_DECLs always returns 8-bit alignment.