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[PATCH, i386]: Use REGNO instead of true_regnum in print_reg

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: Sat, 28 Jan 2017 19:48:22 +0100
Subject: [PATCH, i386]: Use REGNO instead of true_regnum in print_reg
Authentication-results: sourceware.org; auth=none

Using true_regnum to determine register number at insn output time is
just giant waste of cycles. For sure, we have only hard regs here.

2017-01-27  Uros Bizjak  <ubizjak@gmail.com>

    * config/i386/i386.c (print_reg): Use REGNO instead of true_regnum.

Bootstrapped and regression tested on x86_64-linux-gnu {,-m32}.

Committed to mainline SVN as obvious one-liner.

Uros.

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