[Bug middle-end/71269] [7 Regression] segfault while compiling sqlite

[rogero at howzatt dot demon.co.uk]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71269

--- Comment #7 from Roger Orr <rogero at howzatt dot demon.co.uk> ---
I've got a very similar problem, building valgrind with trunk revision 236644:

m_mallocfree.c: In function 'sanity_check_malloc_arena':
m_mallocfree.c:1055:13: internal compiler error: Segmentation fault
 static void sanity_check_malloc_arena ( ArenaId aid )
             ^~~~~~~~~~~~~~~~~~~~~~~~~
0xbac3df crash_signal
        ../../gcc/toplev.c:333
0xd46249 sort_by_operand_rank
        ../../gcc/tree-ssa-reassoc.c:530
0xd52d83 reassociate_bb
        ../../gcc/tree-ssa-reassoc.c:5268
0xd51027 reassociate_bb
        ../../gcc/tree-ssa-reassoc.c:5389
0xd53f7a do_reassoc
        ../../gcc/tree-ssa-reassoc.c:5503
0xd53f7a execute_reassoc
        ../../gcc/tree-ssa-reassoc.c:5590
0xd53f7a execute
        ../../gcc/tree-ssa-reassoc.c:5629
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.

I've uploaded the preprocessed input and compiler output.