[Bug middle-end/52306] ICE in CSE

["mikpe at it dot uu.se" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52306

--- Comment #8 from Mikael Pettersson <mikpe at it dot uu.se> 2012-12-04 22:05:19 UTC ---
The new test case from kde4libs ICEs g++ 4.8-20121202 and 4.6-20121130, but not
4.7-20121201, when targeting x86-linux.  The 4.8 ICE looks as follows:

../../kdeui/notifications/kstatusnotifieritem.cpp: In member function
'KDbusImageVector KStatusNotifierItemPrivate::iconToVector(const QIcon&)':
../../kdeui/notifications/kstatusnotifieritem.cpp:1037:1: internal compiler
error: in cselib_record_set, at cselib.c:2375
0x59fcc7 cselib_record_set
        /tmp/gcc-4.8-20121202/gcc/cselib.c:2375
0x59fcc7 cselib_record_sets
        /tmp/gcc-4.8-20121202/gcc/cselib.c:2592
0x5a005b cselib_process_insn(rtx_def*)
        /tmp/gcc-4.8-20121202/gcc/cselib.c:2667
0x7327f7 reload_cse_regs_1
        /tmp/gcc-4.8-20121202/gcc/postreload.c:224
0x734263 reload_cse_regs
        /tmp/gcc-4.8-20121202/gcc/postreload.c:70
0x734263 rest_of_handle_postreload
        /tmp/gcc-4.8-20121202/gcc/postreload.c:2289
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.

The older xslt test case ICEs all three of 4.8/4.7/4.6, all in
cselib_record_set.

The reduced test case from PR43437 only ICEs 4.6, not 4.7 or 4.8.

I'll do some bisecting with the new kde4libs test case next.