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Re: PING (expand^3, tree-ssa)


On Fri, Jun 26, 2009 at 3:22 PM, Richard
Guenther<richard.guenther@gmail.com> wrote:
> On Fri, Jun 26, 2009 at 11:47 PM, Paolo Bonzini<bonzini@gnu.org> wrote:
>>
>> [PATCH] post-cond-optab improvements
>> http://gcc.gnu.org/ml/gcc-patches/2009-05/msg00815.html
>> http://gcc.gnu.org/ml/gcc-patches/2009-05/msg00734.html
>> http://gcc.gnu.org/ml/gcc-patches/2009-05/msg00733.html
>
> These are all ok if the still bootstrap / regtest ok. ÂI wonder if you could
> add one or two testcases for the specific new optimizations you mention.

One of the above patches causes powerpc-*-* to fail to bootstrap with
an infinite recursive in emit_store_flag between "greater than" and
"less than and equal" expansion with DImode in 32bits while compiling
libgcc.

#214 0x007df98c in emit_store_flag (target=0x0, code=LE,
op0=0x10fd4f0, op1=0x43e0f450, mode=DImode, unsignedp=0, normalizep=1)
at /Users/pinskia/src/trunk/gcc/gcc/expmed.c:5561

(gdb) p debug_rtx(op0)
(reg/v:DI 122 [ w ])
$8 = void
(gdb) p debug_rtx(op1)
(const_int 0 [0x0])

Thanks,
Andrew Pinski


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