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[RFT PATCH, AVX512]: Implement scalar unsigned int->float conversions with AVX512F

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>
Cc: "Peryt, Sebastian" <sebastian dot peryt at intel dot com>, Jakub Jelinek <jakub at redhat dot com>
Date: Tue, 22 May 2018 20:43:25 +0200
Subject: [RFT PATCH, AVX512]: Implement scalar unsigned int->float conversions with AVX512F

Hello!

Attached patch implements scalar unsigned int->float conversions with AVX512F.

2018-05-22  Uros Bizjak  <ubizjak@gmail.com>

    * config/i386/i386.md (*floatuns<SWI48:mode><MODEF:mode>2_avx512):
    New insn pattern.
    (floatunssi<mode>2): Also enable for AVX512F and TARGET_SSE_MATH.
    Rewrite expander pattern.  Emit gen_floatunssi<mode>2_i387_with_xmm
    for non-SSE modes.
    (floatunsdisf2): Rewrite expander pattern.  Hanlde TARGET_AVX512F.
    (floatunsdidf2): Ditto.

testsuite/ChangeLog:

2018-05-22  Uros Bizjak  <ubizjak@gmail.com>

    * gcc.target/i386/cvt-3.c: New test.

Patch was bootstrapped and regression tested on x86_64-linux-gnu
{,-m32}., but not tested on AVX512 target.

Uros.

Attachment: ufloat.diff.txt
Description: Text document

Follow-Ups:
- RE: [RFT PATCH, AVX512]: Implement scalar unsigned int->float conversions with AVX512F
  - From: Peryt, Sebastian

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