[Bug target/55448] using const-reference SSE or AVX types leads to unnecessary unaligned loads

[jakub at gcc dot gnu.org]

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.