[Bug rtl-optimization/36998] [4.3/4.4 regression] Ada bootstrap broken on i586-*-*

[kkojima at gcc dot gnu dot org]

------- Comment #10 from kkojima at gcc dot gnu dot org  2008-08-02 22:12 -------
(In reply to comment #8)
> If a label is reachable from different args_size levels, that's a severe bug
> and should be fixed wherever that is created, likely expander.

It seems that arg_size is reset with (set (reg sp) (reg fp))
just after label 77 in #7:

(code_label 77 42 76 10 "" [2 uses])

(note 76 77 61 [bb 9] NOTE_INSN_BASIC_BLOCK)

(insn 61 76 100 bas.c:22 (use (reg/i:SI 0 r0)) -1 (nil))

(note 100 61 101 NOTE_INSN_EPILOGUE_BEG)

(insn 101 100 102 bas.c:22 (unspec_volatile [
            (const_int 0 [0x0])
        ] 0) 284 {blockage} (nil))

(insn 102 101 127 bas.c:22 (set (reg/f:SI 15 r15)
        (reg/f:SI 14 r14)) 175 {movsi_ie} (nil))

Does it look a target bug?  If so, should I file a new
PR target to bugzilla?


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36998