[Bug middle-end/55487] ICE in mark_jump_label_1, at jump.c:1134 compiling gcc.c-torture/execute/pr51447.c at -O2 and above

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55487



--- Comment #5 from John David Anglin <danglin at gcc dot gnu.org> 2013-04-03 
21:00:49 UTC ---

In reload_as_needed, the reload processing for the following insn the

note:



(gdb) p debug_rtx (insn)

(jump_insn 25 22 26 3 (set (pc)

        (if_then_else (eq (reg/f:DI 28 %r28 [orig:74 ptr ] [74])

                (reg/f:DI 80))

            (label_ref 30)

            (pc)))

/test/gnu/gcc/gcc/gcc/testsuite/gcc.c-torture/execute/pr51447.c:24 49

{*pa.md:1495}

     (expr_list:REG_DEAD (reg/f:DI 28 %r28 [orig:74 ptr ] [74])

        (expr_list:REG_EQUAL (if_then_else (eq (reg/f:DI 28 %r28 [orig:74 ptr ]

[74])

                    (label_ref:DI [18 deleted]))

                (label_ref 30)

                (pc))

            (expr_list:REG_BR_PROB (const_int 9996 [0x270c])

                (nil))))

 -> 30)

(gdb) p insn

$120 = (rtx) 0x4023b3f0