[Bug bootstrap/77359] [7 Regression] AIX bootstrap failure due to alignment of stack pointer + STACK_DYNAMIC_OFFSET

[krebbel at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77359

--- Comment #23 from Andreas Krebbel <krebbel at gcc dot gnu.org> ---
Author: krebbel
Date: Fri Nov 18 14:44:54 2016
New Revision: 242590

URL: https://gcc.gnu.org/viewcvs?rev=242590&root=gcc&view=rev
Log:
Re-apply: Drop excess size used for run time allocated stack variables.

The patch got reverted after hitting PR77359 which turned out to be a
rs6000 backend problem.  Reapplying after the PR got fixed.

gcc/ChangeLog:

2016-11-18  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        Re-apply after PR bootstrap/77359 is fixed:
        2016-08-23  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * explow.c (get_dynamic_stack_size): Take known alignment of stack
        pointer + STACK_DYNAMIC_OFFSET into account when calculating the
        size needed.

--This line, and those below, will be
ignored--

M    gcc/ChangeLog
M    gcc/explow.c

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/explow.c