re PR middle-end/32374 (internal compiler error: in reload_cse_simplify_operands, at postreload.c:396)

        PR middle-end/32374
        * expr.c (store_constructor): Do not clobber non-zeroed memory. 

testsuite/ChangeLog:

        PR middle-end/32374
        * gcc.dg/pr32374.c: New test.

From-SVN: r125955