On 2/10/19, H.J. Lu <hjl.to...@gmail.com> wrote:
> Emulate MMX ashr<mode>3/<shift_insn><mode>3 with SSE. Only SSE register
> source operand is allowed.
>
> PR target/89021
> * config/i386/mmx.md (mmx_ashr<mode>3): Disallow with
> TARGET_MMX_WITH_SSE.
> (mmx_<shift_insn><mode>3): Likewise.
> (ashr<mode>3): New.
> (<shift_insn><mode>3): Likewise.
Please merge patterns use mmx_isa attribute.
Uros.
> ---
> gcc/config/i386/mmx.md | 38 ++++++++++++++++++++++++++++++++++++--
> 1 file changed, 36 insertions(+), 2 deletions(-)
>
> diff --git a/gcc/config/i386/mmx.md b/gcc/config/i386/mmx.md
> index 2024c75fa78..9e07bf31f81 100644
> --- a/gcc/config/i386/mmx.md
> +++ b/gcc/config/i386/mmx.md
> @@ -995,7 +995,7 @@
> (ashiftrt:MMXMODE24
> (match_operand:MMXMODE24 1 "register_operand" "0")
> (match_operand:DI 2 "nonmemory_operand" "yN")))]
> - "TARGET_MMX"
> + "TARGET_MMX && !TARGET_MMX_WITH_SSE"
> "psra<mmxvecsize>\t{%2, %0|%0, %2}"
> [(set_attr "type" "mmxshft")
> (set (attr "length_immediate")
> @@ -1009,7 +1009,7 @@
> (any_lshift:MMXMODE248
> (match_operand:MMXMODE248 1 "register_operand" "0")
> (match_operand:DI 2 "nonmemory_operand" "yN")))]
> - "TARGET_MMX"
> + "TARGET_MMX && !TARGET_MMX_WITH_SSE"
> "p<vshift><mmxvecsize>\t{%2, %0|%0, %2}"
> [(set_attr "type" "mmxshft")
> (set (attr "length_immediate")
> @@ -1018,6 +1018,40 @@
> (const_string "0")))
> (set_attr "mode" "DI")])
>
> +(define_insn "ashr<mode>3"
> + [(set (match_operand:MMXMODE24 0 "register_operand" "=x,Yv")
> + (ashiftrt:MMXMODE24
> + (match_operand:MMXMODE24 1 "register_operand" "0,Yv")
> + (match_operand:DI 2 "nonmemory_operand" "xN,YvN")))]
> + "TARGET_MMX_WITH_SSE"
> + "@
> + psra<mmxvecsize>\t{%2, %0|%0, %2}
> + vpsra<mmxvecsize>\t{%2, %1, %0|%0, %1, %2}"
> + [(set_attr "isa" "noavx,avx")
> + (set_attr "type" "sseishft,sseishft")
> + (set (attr "length_immediate")
> + (if_then_else (match_operand 2 "const_int_operand")
> + (const_string "1")
> + (const_string "0")))
> + (set_attr "mode" "TI")])
> +
> +(define_insn "<shift_insn><mode>3"
> + [(set (match_operand:MMXMODE248 0 "register_operand" "=x,Yv")
> + (any_lshift:MMXMODE248
> + (match_operand:MMXMODE248 1 "register_operand" "0,Yv")
> + (match_operand:DI 2 "nonmemory_operand" "xN,YvN")))]
> + "TARGET_MMX_WITH_SSE"
> + "@
> + p<vshift><mmxvecsize>\t{%2, %0|%0, %2}
> + vp<vshift><mmxvecsize>\t{%2, %1, %0|%0, %1, %2}"
> + [(set_attr "isa" "noavx,avx")
> + (set_attr "type" "sseishft,sseishft")
> + (set (attr "length_immediate")
> + (if_then_else (match_operand 2 "const_int_operand")
> + (const_string "1")
> + (const_string "0")))
> + (set_attr "mode" "TI")])
> +
> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
> ;;
> ;; Parallel integral comparisons
> --
> 2.20.1
>
>
