[Bug rtl-optimization/47166] [4.5 4.6 Regression] SpecCpu2000 Ammp segfaults for ARM with -O3 -mthumb

[hp at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47166

--- Comment #5 from Hans-Peter Nilsson <hp at gcc dot gnu.org> 2011-01-05 08:21:11 UTC ---
(In reply to comment #4)
> (In reply to comment #0)
> >  (insn 3163 3161 3164 107 rectmm.c:1041 (set (reg:SI 1 r1) 
> >     (plus:SI (reg:SI 1 r1) 
> >        (const_int 280 [0x118]))) 4 {*arm_addsi3} (nil))
> 
> Please consider my request in
> <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45051#c8>.

I mean, the <But r1 is an input as well as an output , i.e. "referred to", so
insn 3163 should have matched without your patch.  I'm missing analysis on why
that didn't happen> part.