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[PATCH, i386]: Merge ftest insn patterns with FP compare insn patterns

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: Fri, 5 Oct 2018 19:11:11 +0200
Subject: [PATCH, i386]: Merge ftest insn patterns with FP compare insn patterns

Now that we have universal "C" constraint, we can use it in FP compare
insn patterns to merge ftest insn patterns.

2018-10-05  Uros Bizjak  <ubizjak@gmail.com>

    * config/i386/i386.md (*cmpxf_i387): Change operand 2 predicate
    to reg_or_0_operand.  Add "C" constraint.
    (*cmpxf_cc_i387): Ditto.
    (*cmp<mode>_i387): Change operand 2 predicate
    to nonimm_or_0_operand.  Add "C" constraint.
    (*cmp<mode>_cc_i387): Ditto.
    (*cmp<mode>_0_i387): Remove insn pattern.
    (*cmp<mode>_0_cc_i387): Ditto.

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

Committed to mainline SVN.

Uros.

Attachment: p.diff.txt
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