------- Comment #12 from rguenther at suse dot de 2008-03-27 09:52 ------- Subject: Re: [4.3/4.4 Regression] Symbol address check eliminated by C frontend.
On Thu, 27 Mar 2008, jakub at gcc dot gnu dot org wrote: > ------- Comment #11 from jakub at gcc dot gnu dot org 2008-03-27 09:42 > ------- > That will unnecessarily punish the majority of targets which use simple > pointers. > I thought you can align functions more than FUNCTION_BOUNDARY by > ASM_OUTPUT_MAX_SKIP_ALIGN, but apparently that's not unconditional. > In that case, we should have a target macro or target hook, which will tell us > alignment of ADDR_EXPR <FUNCTION_DECL>, defaulting to DECL_ALIGN_UNIT of the > FUNCTION_DECL, and get_pointer_modulus_and_residue should use that. I don't think alignment checks on function pointers are common (nor portable, a function "pointer" is an opaque object). So a new target hook is overkill IMHO. Richard. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35705
