[Bug middle-end/58382] [4.9 Regression] unwind.inc:136:1: ICE: in trunc_int_for_mode, at explow.c:55

["danglin at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58382

--- Comment #1 from John David Anglin <danglin at gcc dot gnu.org> ---
Breakpoint 1, trunc_int_for_mode (c=8, mode=DFmode)
    at ../../gcc/gcc/explow.c:55
55        gcc_assert (SCALAR_INT_MODE_P (mode));
(gdb) bt
#0  trunc_int_for_mode (c=8, mode=DFmode) at ../../gcc/gcc/explow.c:55
#1  0x40000000006bb254 in gen_int_mode (c=8, mode=DFmode)
    at ../../gcc/gcc/emit-rtl.c:420
#2  0x400000000110e470 in adjust_mems (loc=0x800003fffd533100, old_rtx=0x0,
    data=0x800003fffdff14b8) at ../../gcc/gcc/var-tracking.c:1058
#3  0x4000000000c36a20 in simplify_replace_fn_rtx (x=0x800003fffd533100,
    old_rtx=0x0, fn=0x40000000002ec440, data=0x800003fffdff14b8)
    at ../../gcc/gcc/simplify-rtx.c:426
#4  0x400000000110e168 in adjust_mems (loc=0x800003fffd5cc558, old_rtx=0x0,
    data=0x800003fffdff14b8) at ../../gcc/gcc/var-tracking.c:1035
#5  0x4000000000c36a20 in simplify_replace_fn_rtx (x=0x800003fffd5cc558,
    old_rtx=0x0, fn=0x40000000002ec440, data=0x800003fffdff14b8)
    at ../../gcc/gcc/simplify-rtx.c:426
#6  0x400000000110eb78 in adjust_mem_stores (loc=0x800003fffd5cc558,
    expr=0x800003fffd5cc570, data=0x800003fffdff14b8)
    at ../../gcc/gcc/var-tracking.c:1157
#7  0x4000000000bc7e98 in note_stores (x=0x800003fffd5cc570,
    fun=0x40000000002ec450, data=0x800003fffdff14b8)
    at ../../gcc/gcc/rtlanal.c:1518
#8  0x400000000110ec64 in adjust_insn (bb=0x800003fffda7eb60,
    insn=0x800003fffdae8798) at ../../gcc/gcc/var-tracking.c:1207
#9  0x4000000001139de8 in vt_initialize ()
    at ../../gcc/gcc/var-tracking.c:9973
---Type <return> to continue, or q <return> to quit---
#10 0x400000000113ad54 in variable_tracking_main_1 ()
    at ../../gcc/gcc/var-tracking.c:10171
#11 0x400000000113b074 in variable_tracking_main ()
    at ../../gcc/gcc/var-tracking.c:10224
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(gdb) frame 8
#8  0x400000000110ec64 in adjust_insn (bb=0x800003fffda7eb60,
    insn=0x800003fffdae8798) at ../../gcc/gcc/var-tracking.c:1207
1207      note_stores (PATTERN (insn), adjust_mem_stores, &amd);
(gdb) p debug_rtx(insn)
(insn/f:TI 248 240 249 2 (set (mem:DF (post_inc:DF (reg:DI 1 %r1)) [0 S8 A64])
        (reg:DF 49 %fr21)) ../../../gcc/libgcc/unwind.inc:83 119 {*pa.md:4025}
     (expr_list:REG_DEAD (reg:DF 49 %fr21)
        (expr_list:REG_FRAME_RELATED_EXPR (set (mem:DF (plus:DI (reg/f:DI 30
%r30)
                        (const_int -200 [0xffffffffffffff38])) [0 S8 A64])
                (reg:DF 49 %fr21))
            (nil))))
$1 = void