[Bug c++/54038] [4.7/4.8 Regression] finalize_type_size enters infinite loop becasue TYPE_NEXT_VARIANT (variant) == variant

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54038

--- Comment #8 from Jason Merrill <jason at gcc dot gnu.org> 2012-07-20 
16:12:05 UTC ---
Author: jason
Date: Fri Jul 20 16:11:58 2012
New Revision: 189720

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=189720
Log:
    PR c++/54038
    * tree.c (build_cplus_array_type): Use build_cplus_array_type to build
    canonical array type rather than mess with its TYPE_*_VARIANT.

Added:
    branches/gcc-4_7-branch/gcc/testsuite/g++.dg/other/array7.C
Modified:
    branches/gcc-4_7-branch/gcc/cp/ChangeLog
    branches/gcc-4_7-branch/gcc/cp/tree.c
    branches/gcc-4_7-branch/gcc/testsuite/ChangeLog