[Bug target/79793] Incorrect stack alignment for interrupt handler in 64-bit

["hjl at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79793

--- Comment #3 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> ---
Author: hjl
Date: Mon Mar  6 16:08:59 2017
New Revision: 245926

URL: https://gcc.gnu.org/viewcvs?rev=245926&root=gcc&view=rev
Log:
Set incoming stack boundary to 128 for 64-bit targets

For 64-bit targets, the incoming stack of interrupt handler is aligned
to 16 bytes.  Update ix86_minimum_incoming_stack_boundary to set the
incoming stack boundary of interrupt handler to 128 for 64-bit targets.

gcc/

2017-03-06  Julia Koval  <julia.koval@intel.com>

        PR target/79793
        * config/i386/i386.c (ix86_minimum_incoming_stack_boundary): Set
        incoming stack boundary to 128 for 64-bit targets.

gcc/testsuite/

2017-03-06  Julia Koval  <julia.koval@intel.com>

        PR target/79793
         * gcc.target/i386/interrupt-12.c: Update scan-assembler-times
         directives.
         * gcc.target/i386/interrupt-13.c: Ditto.
         * gcc.target/i386/interrupt-14.c: Ditto.
         * gcc.target/i386/interrupt-15.c: Ditto.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.target/i386/interrupt-12.c
    trunk/gcc/testsuite/gcc.target/i386/interrupt-13.c
    trunk/gcc/testsuite/gcc.target/i386/interrupt-14.c
    trunk/gcc/testsuite/gcc.target/i386/interrupt-15.c