[Bug target/25967] Add attribute naked for x86

[aldyh at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25967

--- Comment #23 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
Author: aldyh
Date: Wed Sep 13 16:08:15 2017
New Revision: 252195

URL: https://gcc.gnu.org/viewcvs?rev=252195&root=gcc&view=rev
Log:
        PR target/25967
        * config/i386/i386.c (ix86_allocate_stack_slots_for_args):
        New function.
        (TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS): Define.

testsuite/ChangeLog:

        PR target/25967
        * gcc.target/i386/naked-3.c (dg-options): Use -O0.
        (naked): Add attribute regparm(1) for x86_32 targets.
        Add integer argument.  Remove global "data" variable.
        (main): Pass integer argument to naked function.
        * gcc.target/i386/naked-4.c: New test.

Added:
    branches/range-gen2/gcc/testsuite/gcc.target/i386/naked-4.c
Modified:
    branches/range-gen2/gcc/ChangeLog
    branches/range-gen2/gcc/config/i386/i386.c
    branches/range-gen2/gcc/testsuite/ChangeLog
    branches/range-gen2/gcc/testsuite/gcc.target/i386/naked-3.c