[Bug middle-end/41360] [4.5 regression] Revision 151696 breaks gcc.c-torture/compile/builtin_unreachable-1.c

[matz at gcc dot gnu dot org]

------- Comment #3 from matz at gcc dot gnu dot org  2009-09-15 15:53 -------
Problem is a barrier inside a basic block:

(gdb) debug_bb(bb)
...
(call_insn 7 6 8 3 builtin_unreachable-1.c:4 (call (mem:QI (symbol_ref:SI
("bar") [flags 0x41] <function_decl 0x7ffff7f8cd00 bar>) [0 S1 A8])
        (const_int 16 [0x10])) -1 (nil)
    (nil))
(barrier 8 7 9)
(insn 9 8 10 3 builtin_unreachable-1.c:5 (parallel [
            (set (reg/f:SI 7 sp)
                (plus:SI (reg/f:SI 7 sp)
                    (const_int 16 [0x10])))
            (clobber (reg:CC 17 flags))
        ]) -1 (nil))


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41360