[Bug middle-end/53790] [4.6/4.7/4.8 Regression] ICE on dereferencing a extern union in asm statement

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53790

--- Comment #8 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-06-28 
12:01:22 UTC ---
Author: rguenth
Date: Thu Jun 28 12:01:16 2012
New Revision: 189048

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=189048
Log:
2012-06-28  Richard Guenther  <rguent...@suse.de>

    PR middle-end/53790
    * expr.c (expand_expr_real_1): Verify if the type is complete
    before inspecting its size.

    * gcc.dg/torture/pr53790.c: New testcase.

Added:
    branches/gcc-4_6-branch/gcc/testsuite/gcc.dg/torture/pr53790.c
Modified:
    branches/gcc-4_6-branch/gcc/ChangeLog
    branches/gcc-4_6-branch/gcc/expr.c
    branches/gcc-4_6-branch/gcc/testsuite/ChangeLog