------- Additional Comments From steven at gcc dot gnu dot org 2005-04-10
16:08 -------
Double *sigh*.
The old loop optimizer introduces the offending insn. From the .loop dump:
Insn 26: regno 70 (life 1), move-insn forces 25 savings 1 moved to 56
Hoisted regno 74 r/o from (mem/u/c:DI (const:DI (unspec:DI [
(symbol_ref:DI ("symbol_tab_data") [flags 0x40] <var_decl
0x2a95a36270 symbol_tab_data>)
] 2)) [0 S8 A8])
...
(insn 56 55 51 0 (set (reg/f:DI 70)
(plus:DI (reg:DI 73)
(const_int 1125899906842624 [0x4000000000000]))) -1 (nil)
(expr_list:REG_EQUAL (const:DI (plus:DI (symbol_ref:DI ("symbol_tab_data")
[flags 0x40] <var_decl 0x2a95a36270 symbol_tab_data>)
(const_int 1125899906842624 [0x4000000000000])))
(nil)))
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20928
