https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119958
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to fail| |3.4.6
--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
```
Trying 13 -> 14:
13: {r102:DI=r100:DI+[const(unspec[`f'] 7)];clobber flags:CC;}
REG_EQUAL `f'
REG_UNUSED flags:CC
REG_DEAD r100:DI
14: flags:CCZ=cmp(r102:DI,0)
Successfully matched this instruction:
(parallel [
(set (reg:CCZ 17 flags)
(compare:CCZ (plus:DI (reg:DI 100)
(mem/u/c:DI (const:DI (unspec:DI [
(symbol_ref/i:DI ("f") [flags 0x60]
<var_decl 0x7ed8f91b41c8 f>)
] UNSPEC_GOTNTPOFF)) [2 S8 A8]))
(const_int 0 [0])))
(set (reg/f:DI 102)
(plus:DI (reg:DI 100)
(mem/u/c:DI (const:DI (unspec:DI [
(symbol_ref/i:DI ("f") [flags 0x60] <var_decl
0x7ed8f91b41c8 f>)
] UNSPEC_GOTNTPOFF)) [2 S8 A8])))
])
allowing combination of insns 13 and 14
original costs 9 + 4 = 13
replacement cost 9
deferring deletion of insn with uid = 13.
modifying insn i3 14: {flags:CCZ=cmp(r100:DI+[const(unspec[`f']
7)],0);r102:DI=r100:DI+[const(unspec[`f'] 7)];}
REG_DEAD r100:DI
deferring rescan insn with uid = 14.
```
