[Bug middle-end/24306] [3.4/4.0/4.1 Regression] va_arg gets confused when skipping over certain zero-sized types with -msse

[rguenth at gcc dot gnu dot org]

------- Comment #8 from rguenth at gcc dot gnu dot org  2005-12-20 17:23 -------
Subject: Bug 24306

Author: rguenth
Date: Tue Dec 20 17:23:12 2005
New Revision: 108857

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=108857
Log:
2005-12-20  Richard Guenther  <rguenther@suse.de>

        PR middle-end/24306
        * builtins.c (std_gimplify_va_arg_expr): Do not align
        va frame for zero sized types.
        * config/i386/i386.c (ix86_gimplify_va_arg): Likewise.

        * gcc.target/i386/pr24306.c

Added:
    branches/gcc-4_1-branch/gcc/testsuite/gcc.target/i386/pr24306.c
Modified:
    branches/gcc-4_1-branch/gcc/ChangeLog
    branches/gcc-4_1-branch/gcc/builtins.c
    branches/gcc-4_1-branch/gcc/config/i386/i386.c
    branches/gcc-4_1-branch/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24306