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[PATCH, i386]: Add missing *mmx_pinsr{q,d} 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: Tue, 13 Aug 2019 06:47:52 +0200
Subject: [PATCH, i386]: Add missing *mmx_pinsr{q,d} patterns

We can implement these for TARGET_MMX_WITH_SSE and TARGET_SSE4_1.

2019-08-13  Uroš Bizjak  <ubizjak@gmail.com>

    * config/i386/i386.md (ix86_expand_vector_set) <case E_V2SImode>:
    Use vec_merge path for TARGET_MMX_WITH_SSE && TARGET_SSE4_1.
    <case E_V8QImode>: Ditto.
    * config/i386/mmx.md (*mmx_pinsrd): New insn pattern.
    (*mmx_pinsrb): Ditto.

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

Committed to mainline SVN.

Uros.

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