[Bug middle-end/52353] -ftrapv -fnon-call-exceptions does not work

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52353

--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-02-23 
13:05:30 UTC ---
Created attachment 26732
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26732
patch

Patch that fixes my issue and works until rtl_dce, which still removes the
call,
even though it throws internally

(call_insn/u 15 13 36 3 (set (reg:DI 0 ax)
        (call (mem:QI (symbol_ref:DI ("__addvdi3") [flags 0x41]) [0 S1 A8])
            (const_int 0 [0])))
/space/rguenther/src/svn/trunk/gcc/testsuite/gcc.dg/pr47086.c:11 636
{*call_value}
     (expr_list:REG_DEAD (reg:DI 5 di)
        (expr_list:REG_DEAD (reg:DI 4 si)
            (expr_list:REG_UNUSED (reg:DI 0 ax)
                (expr_list:REG_EH_REGION (const_int 1 [0x1])
                    (nil)))))
    (expr_list:REG_DEP_TRUE (use (reg:DI 4 si))
        (expr_list:REG_DEP_TRUE (use (reg:DI 5 di))
            (nil))))

;; Successors:  5 (ab,abcall,eh,loop_exit) 4 [100.0%]  (fallthru)
;; lr  out       3 [bx] 6 [bp] 7 [sp] 16 [argp] 20 [frame] 41 [r12]