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[Bug bootstrap/77359] [7 Regression] AIX bootstrap failure due to alignment of stack pointer + STACK_DYNAMIC_OFFSET
- From: "vogt at linux dot vnet.ibm.com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 07 Sep 2016 10:59:20 +0000
- Subject: [Bug bootstrap/77359] [7 Regression] AIX bootstrap failure due to alignment of stack pointer + STACK_DYNAMIC_OFFSET
- Auto-submitted: auto-generated
- References: <bug-77359-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77359
--- Comment #14 from Dominik Vogt <vogt at linux dot vnet.ibm.com> ---
Okay, it looks like outgoing_args_size is rounded up to a multiple of
preferred_stack_boundary, so there's no problem on s390 or other targets with a
stack allocation size smaller than STACK_BOUNDARY. So, what needs to be done
to get the patch back in?
1. Test and apply a patch with the change suggersted in comment 10. (I can do
a quick test of the patch on AIX, but someone else should test AIX/Darwin/Linux
on Power with the patch)
2. Reapply the backed out patch.
3. Create a bug report for the not matching conditions in STACK_DYNAMIC_OFFSET
and STACK_BOUNDARY in rs6000.h and let the maintainers of that code clean it
up.
Opinions?