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[PATCH, i386]: Simplify emission of SSE constant (-1) load.

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, 25 Apr 2016 21:16:47 +0200
Subject: [PATCH, i386]: Simplify emission of SSE constant (-1) load.
Authentication-results: sourceware.org; auth=none

2016-04-25  Uros Bizjak  <ubizjak@gmail.com>

    * config/i386/i386.md (*movoi_internal_avx): Set mode attribute to XI
    for SSE constm1 operands and TARGET_AVX512VL.
    (*movti_internal): Ditto.
    (*mov<mode>_or): Use constm1_operand predicate.
    * config/i386/sse.md (*mov<mode>_internal): Set mode attribute to XI
    for SSE vector_all_ones operands and TARGET_AVX512VL.
    * config/i386/predicates.md (constm1_operand): New predicate.
    * config/i386/i386.c (standard_sse_constant_opcode): Simplify
    emission of constant -1 load.

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

Committed to mainline SVN.

Uros.

Attachment: p.diff.txt
Description: Text document

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