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[PATCH, i386]: Merge 64-bit and 32-bit gotoff_operand code paths in legitimize_pic_address

From: Uros Bizjak <ubizjak at gmail dot com>
To: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
Date: Tue, 10 May 2016 19:16:08 +0200
Subject: [PATCH, i386]: Merge 64-bit and 32-bit gotoff_operand code paths in legitimize_pic_address
Authentication-results: sourceware.org; auth=none

Hello!

This patch merges 64-bit and 32-bit gotoff_operand code paths in
legitimize_pic_address. Also, the patch uses copy_to_suggested_reg,
which seems to be invented just for this purpose. Also,
expand_simple_binop will ouput to suggested target reg by itself, so
there is no need to emit separate move insn.

2016-05-10  Uros Bizjak  <ubizjak@gmail.com>

    * config/i386/i386.c (legitimize_pic_address): Merge 64-bit and 32-bit
    gotoff_operand code paths.  Use copy_to_suggested_regs and
    expand_simple_binop where appropriate.  Cleanup.

Patch was bootstrapped and regression tested on x86_64-linux-gnu {,-m32}.

Committed to mainline SVN.

Uros.

Attachment: p.diff.txt
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