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

[Kyrill Tkachov]

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