[Bug middle-end/47735] [4.7/4.8/4.9 Regression] Unnecessary adjustments to stack pointer

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47735

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Jan  9 20:12:36 2014
New Revision: 206493

URL: http://gcc.gnu.org/viewcvs?rev=206493&root=gcc&view=rev
Log:
    PR middle-end/47735
    * cfgexpand.c (expand_one_var): For SSA_NAMEs, if the underlying
    var satisfies use_register_for_decl, just take into account type
    alignment, rather than decl alignment.

    * gcc.target/i386/pr47735.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr47735.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cfgexpand.c
    trunk/gcc/testsuite/ChangeLog