------- Comment #10 from hjl dot tools at gmail dot com 2008-08-04 12:26 ------- (In reply to comment #8) > Root cause is that outgoing parameter frame is aligned based on stack pointer. > Namely, address_of_stack_param = SP + offset + fixed_padding. > > With -mpreferred-stack-boundary=2, alignment of SP is only 4 bytes. Outgoing > frame won't be possibly aligned with 16 bytes without additional 'and $-16, > sp'.
Did you mean we needed 2 "additional 'and $-16, sp" insns to align the stack? I don't think so. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37010
