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[PATCH 2/2, i386]: Implement TARGET_EXPAND_DIVMOD_LIBFUNC

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: Mon, 31 Oct 2016 15:52:14 +0100
Subject: [PATCH 2/2, i386]: Implement TARGET_EXPAND_DIVMOD_LIBFUNC
Authentication-results: sourceware.org; auth=none

Attached patch builds on previous libgcc patch and implements
TARGET_EXPAND_DIVMOD_LIBFUNC target hook.

The same approach can also be used on other targets without hardware
divmod insn.

Patch also fixes several gcc.dg/divmod-?.c testsuite failures for
x86_64 multilibs.

2016-10-31  Uros Bizjak  <ubizjak@gmail.com>

    * config/i386/i386.c (ix86_init_libfuncs): New.  Call
    darwin_rename_builtins here.
    (ix86_expand_divmod_libfunc): New.
    (TARGET_INIT_LIBFUNCS): Unconditionally define to ix86_init_libfuncs.
    (TARGET_EXPAND_DIVMOD_LIBFUNC): Define.

testsuite/Changelog:

2016-10-31  Uros Bizjak  <ubizjak@gmail.com>

    * lib/target-supports.exp (check_effective_target_divmod):
    Add i?86-*-*.

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

Uros.

Attachment: p.diff.txt
Description: Text document

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