On Fri, Oct 10, 2014 at 9:43 AM, Evgeny Stupachenko <evstu...@gmail.com> wrote:
> i386 specific part of the patch:
>
> 2014-10-08  Ilya Enkovich  <ilya.enkov...@intel.com>
>             Vladimir Makarov  <vmaka...@redhat.com>
>         * gcc/config/i386/i386.c (ix86_use_pseudo_pic_reg): New.
>         (ix86_init_pic_reg): New.
>         (ix86_select_alt_pic_regnum): Add check on pseudo register.
>         (ix86_save_reg): Likewise.
>         (ix86_expand_prologue): Remove irrelevant code.

Please mention *which* code you removed here.

>         (ix86_output_function_epilogue): Add check on pseudo register.
>         (set_pic_reg_ever_alive): New.
>         (legitimize_pic_address): Replace df_set_regs_ever_live with new
>         set_pic_reg_ever_alive.
>         (legitimize_tls_address): Likewise.
>         (ix86_pic_register_p): New check.
>         (ix86_delegitimize_address): Add check on pseudo register.
>         (ix86_expand_call): Insert move from pseudo PIC register to ABI
>         defined REAL_PIC_OFFSET_TABLE_REGNUM.
>         (TARGET_INIT_PIC_REG): New.
>         (TARGET_USE_PSEUDO_PIC_REG): New.
>         (PIC_OFFSET_TABLE_REGNUM): New check.

This is not "New check", but changed one. Please mention *what* changed.

-      if (pic_offset_table_rtx)
+      if (pic_offset_table_rtx
+  && (!reload_completed || !ix86_use_pseudo_pic_reg ()))

Hm, can you please add a comment for this change?

Uros.

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