[Bug tree-optimization/59501] [4.9 Regression] Vector Gather with GCC 4.9 2013-12-08 Snapshot

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59501

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Mon Dec 30 08:53:10 2013
New Revision: 206243

URL: http://gcc.gnu.org/viewcvs?rev=206243&root=gcc&view=rev
Log:
    PR target/59501
    * config/i386/i386.c (ix86_save_reg): Don't return true for drap_reg
    if !crtl->stack_realign_needed.
    (ix86_finalize_stack_realign_flags): If drap_reg isn't live on entry
    and stack_realign_needed will be false, clear drap_reg and need_drap.
    Optimize leaf functions that don't need stack frame even if
    crtl->need_drap.

    * gcc.target/i386/pr59501-1.c: New test.
    * gcc.target/i386/pr59501-1a.c: New test.
    * gcc.target/i386/pr59501-2.c: New test.
    * gcc.target/i386/pr59501-2a.c: New test.
    * gcc.target/i386/pr59501-3.c: New test.
    * gcc.target/i386/pr59501-3a.c: New test.
    * gcc.target/i386/pr59501-4.c: New test.
    * gcc.target/i386/pr59501-4a.c: New test.
    * gcc.target/i386/pr59501-5.c: New test.
    * gcc.target/i386/pr59501-6.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr59501-1.c
    trunk/gcc/testsuite/gcc.target/i386/pr59501-1a.c
    trunk/gcc/testsuite/gcc.target/i386/pr59501-2.c
    trunk/gcc/testsuite/gcc.target/i386/pr59501-2a.c
    trunk/gcc/testsuite/gcc.target/i386/pr59501-3.c
    trunk/gcc/testsuite/gcc.target/i386/pr59501-3a.c
    trunk/gcc/testsuite/gcc.target/i386/pr59501-4.c
    trunk/gcc/testsuite/gcc.target/i386/pr59501-4a.c
    trunk/gcc/testsuite/gcc.target/i386/pr59501-5.c
    trunk/gcc/testsuite/gcc.target/i386/pr59501-6.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/testsuite/ChangeLog