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To: Kenneth Zadeck <zadeck@naturalbridge.com>
Cc: gcc-patches <gcc-patches@gcc.gnu.org>,         "Park, Seongbae" <seongbae.park@gmail.com>,         "Bonzini, Paolo" <bonzini@gnu.org>,         Steven Bosscher <stevenb.gcc@gmail.com>,         Richard Sandiford <rsandifo@nildram.co.uk>
Subject: Re: [trunk] first of three patches to get rid of no conflict blocks.
References: <47CDB6AF.9090707@naturalbridge.com> 	<47CDB78B.1020100@naturalbridge.com>
From: Ian Lance Taylor <iant@google.com>
Date: Wed, 05 Mar 2008 21:24:00 -0000
In-Reply-To: <47CDB78B.1020100@naturalbridge.com>
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Kenneth Zadeck <zadeck@naturalbridge.com> writes:

> 2008-03-04  Kenneth Zadeck <zadeck@naturalbridge.com>
>
>     * fwprop.c (update_df): Support width and offset parameters of
>     df_ref_create.
>     * ra-conflict.c (mark_reg_store, clear_reg_in_live,
>     global_conflicts): Change DF_REF_EXTRACT to either
>     DF_REF_ZERO_EXTRACT or DF_REF_SIGN_EXTRACT.  Change
>     DF_REF_STRICT_LOWER_PART to DF_REF_STRICT_LOW_PART.
>     * df-scan.c (df_ref_record, df_defs_record,
>     df_ref_create_structure, df_def_record_1, df_uses_record,
>     df_get_conditional_uses, df_get_call_refs, df_insn_refs_collect,
>     df_bb_refs_collect, df_entry_block_defs_collect,
>     df_exit_block_uses_collect): Support new width and offset fields.
>     (ref_extract_pool): New storage pool.
>     (df_free_ref): New function.
>     (df_reg_chain_unlink, df_free_collection_rec,
>     df_sort_and_compress_refs): Call df_free_ref.
>     (df_ref_equal_p, df_ref_compare): Compare offset and width fields
>     of df_ref_extract.
>     (df_ref_create_structure): Allocate df_ref_extract if offset and
>     width fields are used.
>     (df_def_record_1): Get offset and width from ZERO_EXTRACT.
>     (df_uses_record): Get offset and width from ZERO_EXTRACT
>     and SIGN_EXTRACT.
>     * global.c (build_insn_chain): Change DF_REF_EXTRACT to either
>     DF_REF_ZERO_EXTRACT or DF_REF_SIGN_EXTRACT.  Change
>     DF_REF_STRICT_LOWER_PART to DF_REF_STRICT_LOW_PART.
>     * df.h (df_ref_flags): Change DF_REF_EXTRACT to either
>     DF_REF_ZERO_EXTRACT or DF_REF_SIGN_EXTRACT.  Change
>     DF_REF_STRICT_LOWER_PART to DF_REF_STRICT_LOW_PART.
>     (df_ref_extract): New structure.
>     (DF_REF_WIDTH, DF_REF_OFFSET): New macros.
>     (df_ref_create): Add width and offset parameters.

This looks OK to me.

Thanks.

Ian