[i386,AVX512,52/n] Add convert ps2pd and ps2dq.

Hello,
Patch in the bottom adds support for ps2dq and ps2pd
conversions.

Bootstrapped.
AVX-512* tests on top of patch-set all pass
under simulator.

Is it ok for trunk?

gcc/
	* config/i386/sse.md
	(define_c_enum "unspec"): Add UNSPEC_CVTINT2MASK.
	(define_insn
	"<fixsuffix>fix_trunc<mode><sselongvecmodelower>2<mask_name><round_saeonly_name>"):
	New.
	(define_insn "<fixsuffix>fix_truncv2sfv2di2<mask_name>"): Ditto.
	(define_insn "ufix_trunc<mode><sseintvecmodelower>2<mask_name>"): Ditto.
	(define_insn "sse2_cvtss2sd<round_saeonly_name>"): Change
	"nonimmediate_operand" to "<round_saeonly_nimm_predicate>".
	(define_insn "avx_cvtpd2ps256<mask_name>"): Add masking.
	(define_expand "sse2_cvtpd2ps_mask): New.
	(define_insn "*sse2_cvtpd2ps<mask_name>"): Add masking.
	(define_insn "<avx512>_cvt<ssemodesuffix>2mask<mode>"): New.
	(define_insn "<avx512>_cvtmask2<ssemodesuffix><mode>"): Ditto.
	(define_insn "sse2_cvtps2pd<mask_name>"): Add masking.

--
Thanks, K

On Wed, Sep 24, 2014 at 10:54 AM, Kirill Yukhin <kirill.yukhin@gmail.com> wrote:
> Hello,
> Patch in the bottom adds support for ps2dq and ps2pd
> conversions.
>
> Bootstrapped.
> AVX-512* tests on top of patch-set all pass
> under simulator.
>
> Is it ok for trunk?
>
> gcc/
>         * config/i386/sse.md
>         (define_c_enum "unspec"): Add UNSPEC_CVTINT2MASK.
>         (define_insn
>         "<fixsuffix>fix_trunc<mode><sselongvecmodelower>2<mask_name><round_saeonly_name>"):
>         New.
>         (define_insn "<fixsuffix>fix_truncv2sfv2di2<mask_name>"): Ditto.
>         (define_insn "ufix_trunc<mode><sseintvecmodelower>2<mask_name>"): Ditto.
>         (define_insn "sse2_cvtss2sd<round_saeonly_name>"): Change
>         "nonimmediate_operand" to "<round_saeonly_nimm_predicate>".
>         (define_insn "avx_cvtpd2ps256<mask_name>"): Add masking.
>         (define_expand "sse2_cvtpd2ps_mask): New.
>         (define_insn "*sse2_cvtpd2ps<mask_name>"): Add masking.
>         (define_insn "<avx512>_cvt<ssemodesuffix>2mask<mode>"): New.
>         (define_insn "<avx512>_cvtmask2<ssemodesuffix><mode>"): Ditto.
>         (define_insn "sse2_cvtps2pd<mask_name>"): Add masking.

OK, modulo UNSPEC_CVTINT2MASK stuff. Please split out and repost
UNSPEC_CVTINT2MASK part of the patch, as it doesn't belong in this
one. Also, please see the question in the patch.

Thanks,
Uros.

>
> --
> Thanks, K
>
> diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
> index b2e1d4f..c9d6e00 100644
> --- a/gcc/config/i386/sse.md
> +++ b/gcc/config/i386/sse.md
> @@ -132,6 +132,7 @@
>    ;; For AVX512BW support
>    UNSPEC_PSHUFHW
>    UNSPEC_PSHUFLW
> +  UNSPEC_CVTINT2MASK

What was the reason to go with an unspec? The pattern that uses
generic vector RTX is preferred, unless that kind of pattern is too
complex.

>    ;; For AVX512DQ support
>    UNSPEC_REDUCE
> @@ -4659,6 +4660,38 @@
>     (set_attr "prefix" "evex")
>     (set_attr "mode" "<sseintvecmode2>")])
>
> +(define_insn "<fixsuffix>fix_trunc<mode><sselongvecmodelower>2<mask_name><round_saeonly_name>"
> +  [(set (match_operand:<sselongvecmode> 0 "register_operand" "=v")
> +       (any_fix:<sselongvecmode>
> +         (match_operand:VF1_128_256VL 1 "<round_saeonly_nimm_predicate>" "<round_saeonly_constraint>")))]
> +  "TARGET_AVX512DQ && <round_saeonly_modev8sf_condition>"
> +  "vcvttps2<fixsuffix>qq\t{<round_saeonly_mask_op2>%1, %0<mask_operand2>|%0<mask_operand2>, %1<round_saeonly_mask_op2>}"
> +  [(set_attr "type" "ssecvt")
> +   (set_attr "prefix" "evex")
> +   (set_attr "mode" "<sseintvecmode3>")])
> +
> +(define_insn "<fixsuffix>fix_truncv2sfv2di2<mask_name>"
> +  [(set (match_operand:V2DI 0 "register_operand" "=v")
> +       (any_fix:V2DI
> +         (vec_select:V2SF
> +           (match_operand:V4SF 1 "nonimmediate_operand" "vm")
> +           (parallel [(const_int 0) (const_int 1)]))))]
> +  "TARGET_AVX512DQ && TARGET_AVX512VL"
> +  "vcvttps2<fixsuffix>qq\t{%1, %0<mask_operand2>|%0<mask_operand2>, %1}"
> +  [(set_attr "type" "ssecvt")
> +   (set_attr "prefix" "evex")
> +   (set_attr "mode" "TI")])
> +
> +(define_insn "ufix_trunc<mode><sseintvecmodelower>2<mask_name>"
> +  [(set (match_operand:<sseintvecmode> 0 "register_operand" "=v")
> +       (unsigned_fix:<sseintvecmode>
> +         (match_operand:VF1_128_256VL 1 "nonimmediate_operand" "vm")))]
> +  "TARGET_AVX512VL"
> +  "vcvttps2udq\t{%1, %0<mask_operand2>|%0<mask_operand2>, %1}"
> +  [(set_attr "type" "ssecvt")
> +   (set_attr "prefix" "evex")
> +   (set_attr "mode" "<sseintvecmode2>")])
> +
>  (define_expand "avx_cvttpd2dq256_2"
>    [(set (match_operand:V8SI 0 "register_operand")
>         (vec_concat:V8SI
> @@ -4713,7 +4746,7 @@
>         (vec_merge:V2DF
>           (float_extend:V2DF
>             (vec_select:V2SF
> -             (match_operand:V4SF 2 "nonimmediate_operand" "x,m,<round_saeonly_constraint>")
> +             (match_operand:V4SF 2 "<round_saeonly_nimm_predicate>" "x,m,<round_saeonly_constraint>")
>               (parallel [(const_int 0) (const_int 1)])))
>           (match_operand:V2DF 1 "register_operand" "0,0,v")
>           (const_int 1)))]
> @@ -4741,14 +4774,14 @@
>     (set_attr "prefix" "evex")
>     (set_attr "mode" "V8SF")])
>
> -(define_insn "avx_cvtpd2ps256"
> -  [(set (match_operand:V4SF 0 "register_operand" "=x")
> +(define_insn "avx_cvtpd2ps256<mask_name>"
> +  [(set (match_operand:V4SF 0 "register_operand" "=v")
>         (float_truncate:V4SF
> -         (match_operand:V4DF 1 "nonimmediate_operand" "xm")))]
> -  "TARGET_AVX"
> -  "vcvtpd2ps{y}\t{%1, %0|%0, %1}"
> +         (match_operand:V4DF 1 "nonimmediate_operand" "vm")))]
> +  "TARGET_AVX && <mask_avx512vl_condition>"
> +  "vcvtpd2ps{y}\t{%1, %0<mask_operand2>|%0<mask_operand2>, %1}"
>    [(set_attr "type" "ssecvt")
> -   (set_attr "prefix" "vex")
> +   (set_attr "prefix" "maybe_evex")
>     (set_attr "btver2_decode" "vector")
>     (set_attr "mode" "V4SF")])
>
> @@ -4761,16 +4794,28 @@
>    "TARGET_SSE2"
>    "operands[2] = CONST0_RTX (V2SFmode);")
>
> -(define_insn "*sse2_cvtpd2ps"
> -  [(set (match_operand:V4SF 0 "register_operand" "=x")
> +(define_expand "sse2_cvtpd2ps_mask"
> +  [(set (match_operand:V4SF 0 "register_operand")
> +       (vec_merge:V4SF
> +         (vec_concat:V4SF
> +           (float_truncate:V2SF
> +             (match_operand:V2DF 1 "nonimmediate_operand"))
> +           (match_dup 4))
> +         (match_operand:V4SF 2 "register_operand")
> +         (match_operand:QI 3 "register_operand")))]
> +  "TARGET_SSE2"
> +  "operands[4] = CONST0_RTX (V2SFmode);")
> +
> +(define_insn "*sse2_cvtpd2ps<mask_name>"
> +  [(set (match_operand:V4SF 0 "register_operand" "=v")
>         (vec_concat:V4SF
>           (float_truncate:V2SF
> -           (match_operand:V2DF 1 "nonimmediate_operand" "xm"))
> +           (match_operand:V2DF 1 "nonimmediate_operand" "vm"))
>           (match_operand:V2SF 2 "const0_operand")))]
> -  "TARGET_SSE2"
> +  "TARGET_SSE2 && <mask_avx512vl_condition>"
>  {
>    if (TARGET_AVX)
> -    return "vcvtpd2ps{x}\t{%1, %0|%0, %1}";
> +    return "vcvtpd2ps{x}\t{%1, %0<mask_operand3>|%0<mask_operand3>, %1}";
>    else
>      return "cvtpd2ps\t{%1, %0|%0, %1}";
>  }
> @@ -4824,14 +4869,54 @@
>     (set_attr "prefix" "evex")
>     (set_attr "mode" "V8DF")])
>
> -(define_insn "sse2_cvtps2pd"
> -  [(set (match_operand:V2DF 0 "register_operand" "=x")
> +(define_insn "<avx512>_cvt<ssemodesuffix>2mask<mode>"
> +  [(set (match_operand:<avx512fmaskmode> 0 "register_operand" "=Yk")
> +       (unspec:<avx512fmaskmode>
> +        [(match_operand:VI12_AVX512VL 1 "register_operand" "v")]
> +        UNSPEC_CVTINT2MASK))]
> +  "TARGET_AVX512BW"
> +  "vpmov<ssemodesuffix>2m\t{%1, %0|%0, %1}"
> +  [(set_attr "prefix" "evex")
> +   (set_attr "mode" "<sseinsnmode>")])
> +
> +(define_insn "<avx512>_cvt<ssemodesuffix>2mask<mode>"
> +  [(set (match_operand:<avx512fmaskmode> 0 "register_operand" "=Yk")
> +       (unspec:<avx512fmaskmode>
> +        [(match_operand:VI48_AVX512VL 1 "register_operand" "v")]
> +        UNSPEC_CVTINT2MASK))]
> +  "TARGET_AVX512DQ"
> +  "vpmov<ssemodesuffix>2m\t{%1, %0|%0, %1}"
> +  [(set_attr "prefix" "evex")
> +   (set_attr "mode" "<sseinsnmode>")])
> +
> +(define_insn "<avx512>_cvtmask2<ssemodesuffix><mode>"
> +  [(set (match_operand:VI12_AVX512VL 0 "register_operand" "=v")
> +       (unspec:VI12_AVX512VL
> +        [(match_operand:<avx512fmaskmode> 1 "register_operand" "Yk")]
> +        UNSPEC_CVTINT2MASK))]
> +  "TARGET_AVX512BW"
> +  "vpmovm2<ssemodesuffix>\t{%1, %0|%0, %1}"
> +  [(set_attr "prefix" "evex")
> +   (set_attr "mode" "<sseinsnmode>")])
> +
> +(define_insn "<avx512>_cvtmask2<ssemodesuffix><mode>"
> +  [(set (match_operand:VI48_AVX512VL 0 "register_operand" "=v")
> +       (unspec:VI48_AVX512VL
> +        [(match_operand:<avx512fmaskmode> 1 "register_operand" "Yk")]
> +        UNSPEC_CVTINT2MASK))]
> +  "TARGET_AVX512DQ"
> +  "vpmovm2<ssemodesuffix>\t{%1, %0|%0, %1}"
> +  [(set_attr "prefix" "evex")
> +   (set_attr "mode" "<sseinsnmode>")])
> +
> +(define_insn "sse2_cvtps2pd<mask_name>"
> +  [(set (match_operand:V2DF 0 "register_operand" "=v")
>         (float_extend:V2DF
>           (vec_select:V2SF
> -           (match_operand:V4SF 1 "nonimmediate_operand" "xm")
> +           (match_operand:V4SF 1 "nonimmediate_operand" "vm")
>             (parallel [(const_int 0) (const_int 1)]))))]
> -  "TARGET_SSE2"
> -  "%vcvtps2pd\t{%1, %0|%0, %q1}"
> +  "TARGET_SSE2 && <mask_avx512vl_condition>"
> +  "%vcvtps2pd\t{%1, %0<mask_operand2>|%0<mask_operand2>, %q1}"
>    [(set_attr "type" "ssecvt")
>     (set_attr "amdfam10_decode" "direct")
>     (set_attr "athlon_decode" "double")