------- Comment #15 from jakub at gcc dot gnu dot org 2010-06-16 14:57 ------- 1) all the world isn't ix86/x86_64, this is generic code, so MAX_SUPPORTED_STACK_ALIGNMENT is small on many targets 2) even when get_decl_align_unit returns something small, the decl might still get a nicely aligned slot (say offset 64). If it is known at this point that virtual_stack_vars_rtx will be at least 32 byte aligned, we shouldn't hide that fact from the expanders.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44542
