Re: [PATCH][RTL-ifcvt] PR rtl-optimization/67465: Handle pairs of complex+simple blocks and empty blocks more gracefully

[Kyrill Tkachov <kyrylo.tkachov@arm.com>]

Hi Rainer,

On 10/09/15 12:43, Rainer Orth wrote:
> Hi Kyrill,
>
>> Rainer, could you please check that this patch still fixes the SPARC
>> regressions?
> unfortunately, it breaks sparc-sun-solaris2.10 bootstrap: compiling
> stage2 libiberty/regex.c FAILs:

Thanks for trying it out.
I'll try reproducing with a stage-1 cross-compiler.
Any change you could send me the preprocessed regex.i?

Thanks,
Kyrill


> In file included from /vol/gcc/src/hg/trunk/local/libiberty/regex.c:640:0:
> /vol/gcc/src/hg/trunk/local/libiberty/regex.c: In function 'byte_regex_compile':
> /vol/gcc/src/hg/trunk/local/libiberty/regex.c:4223:1: internal compiler error: in emit_move_insn, at expr.c:3552
>   } /* regex_compile */
>   ^
> 0x6f1893 emit_move_insn(rtx_def*, rtx_def*)
>          /vol/gcc/src/hg/trunk/local/gcc/expr.c:3551
> 0x13c524f noce_emit_move_insn
>          /vol/gcc/src/hg/trunk/local/gcc/ifcvt.c:927
> 0x13c8d93 noce_try_cmove_arith
>          /vol/gcc/src/hg/trunk/local/gcc/ifcvt.c:2026
> 0x13cd40b noce_process_if_block
>          /vol/gcc/src/hg/trunk/local/gcc/ifcvt.c:3229
> 0x13ceeb7 noce_find_if_block
>          /vol/gcc/src/hg/trunk/local/gcc/ifcvt.c:3678
> 0x13cf8fb find_if_header
>          /vol/gcc/src/hg/trunk/local/gcc/ifcvt.c:3883
> 0x13d39df if_convert
>          /vol/gcc/src/hg/trunk/local/gcc/ifcvt.c:5030
> 0x13d3f13 execute
>          /vol/gcc/src/hg/trunk/local/gcc/ifcvt.c:5176
>
> 	Rainer
>