##shuffle-vector-imm
Basic block instructions

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Vocabulary
compiler.cfg.instructions

Class description
Shuffles the vector in a SSE register according to the given shuffle pattern. It is used to extract a given element of the vector.

dst	Destination register to shuffle the vector to.
src	Source register.
shuffle	Shuffling pattern.

See also
%shuffle-vector-imm

Definition

IN: compiler.cfg.instructions

TUPLE: ##shuffle-vector-imm < foldable-insn
    dst src shuffle rep insn# ;

Methods

USING: accessors compiler.cfg.gvn.avail
compiler.cfg.instructions kernel ;

M: ##shuffle-vector-imm >avail-insn-defs [ ] change-dst drop ;


USING: accessors compiler.cfg.gvn.avail
compiler.cfg.instructions kernel ;

M: ##shuffle-vector-imm >avail-insn-uses
    [ dup >avail-vreg or* ] change-src drop ;


USING: accessors arrays compiler.cfg.gvn.expressions
compiler.cfg.gvn.graph compiler.cfg.instructions kernel
sequences.private ;

M: ##shuffle-vector-imm >expr
    \ ##shuffle-vector-imm swap [ src>> vreg>vn ] keep
    [ shuffle>> ] keep [ rep>> ] keep drop 4 f <array> 3 swap
    [ set-array-nth ] keep 2 swap [ set-array-nth ] keep 1 swap
    [ set-array-nth ] keep 0 swap [ set-array-nth ] keep ;


USING: accessors arrays compiler.cfg.instructions
compiler.cfg.value-numbering.expressions
compiler.cfg.value-numbering.graph kernel sequences.private ;

M: ##shuffle-vector-imm >expr
    \ ##shuffle-vector-imm swap [ src>> vreg>vn ] keep
    [ shuffle>> ] keep [ rep>> ] keep drop 4 f <array> 3 swap
    [ set-array-nth ] keep 2 swap [ set-array-nth ] keep 1 swap
    [ set-array-nth ] keep 0 swap [ set-array-nth ] keep ;


USING: accessors compiler.cfg.instructions
compiler.cfg.linear-scan.assignment kernel ;

M: ##shuffle-vector-imm assign-insn-defs
    [ vreg>reg ] change-dst drop ;


USING: accessors compiler.cfg.instructions
compiler.cfg.linear-scan.assignment kernel ;

M: ##shuffle-vector-imm assign-insn-uses
    [ vreg>reg ] change-src drop ;


USING: accessors compiler.cfg.instructions
compiler.cfg.representations.rewrite kernel ;

M: ##shuffle-vector-imm convert-insn-defs
    [ converted-value ] change-dst drop ;


USING: accessors compiler.cfg.instructions
compiler.cfg.representations.rewrite kernel ;

M: ##shuffle-vector-imm convert-insn-uses
    [ converted-value ] change-src drop ;


USING: accessors arrays compiler.cfg.instructions
compiler.cfg.representations.preferred ;

M: ##shuffle-vector-imm defs-vreg-reps rep>> 1array ;


USING: accessors arrays compiler.cfg.def-use
compiler.cfg.instructions ;

M: ##shuffle-vector-imm defs-vregs dst>> 1array ;


USING: accessors compiler.cfg.instructions compiler.codegen
cpu.architecture kernel ;

M: ##shuffle-vector-imm generate-insn
    [ dst>> ] keep [ src>> ] keep [ shuffle>> ] keep
    [ rep>> ] keep drop %shuffle-vector-imm ;


USING: accessors compiler.cfg.instructions
compiler.cfg.intrinsics.simd.backend cpu.architecture sequences
;

M: ##shuffle-vector-imm insn-available?
    rep>> %shuffle-vector-imm-reps member? ;


USING: accessors compiler.cfg.instructions compiler.cfg.renaming
kernel ;

M: ##shuffle-vector-imm rename-insn-defs
    [ rename-value ] change-dst drop ;


USING: accessors compiler.cfg.instructions compiler.cfg.renaming
kernel ;

M: ##shuffle-vector-imm rename-insn-uses
    [ rename-value ] change-src drop ;


USING: accessors combinators compiler.cfg.gvn.avail
compiler.cfg.gvn.graph compiler.cfg.gvn.rewrite
compiler.cfg.gvn.simd compiler.cfg.instructions
compiler.cfg.utilities kernel ;

M: ##shuffle-vector-imm rewrite
    dup src>> vreg>insn {
        {
            [ over useless-shuffle-vector-imm? ]
            [ drop [ dst>> ] [ src>> ] bi <copy> ]
        }
        {
            [
                dup
                [ ##shuffle-vector-imm? ] with-available-uses?
            ]
            [ compose-shuffle-vector-imm ]
        }
        {
            [ dup ##load-reference? ]
            [ fold-shuffle-vector-imm ]
        }
        [ 2drop f ]
    } cond ;


USING: accessors combinators compiler.cfg.instructions
compiler.cfg.utilities compiler.cfg.value-numbering.graph
compiler.cfg.value-numbering.rewrite
compiler.cfg.value-numbering.simd kernel ;

M: ##shuffle-vector-imm rewrite
    dup src>> vreg>insn {
        {
            [ over useless-shuffle-vector-imm? ]
            [ drop [ dst>> ] [ src>> ] bi <copy> ]
        }
        {
            [ dup ##shuffle-vector-imm? ]
            [ compose-shuffle-vector-imm ]
        }
        {
            [ dup ##load-reference? ]
            [ fold-shuffle-vector-imm ]
        }
        [ 2drop f ]
    } cond ;


USING: accessors compiler.cfg.instructions
compiler.cfg.ssa.construction.private kernel ;

M: ##shuffle-vector-imm ssa-rename-insn-defs
    [ gen-name ] change-dst drop ;


USING: accessors compiler.cfg.instructions
compiler.cfg.ssa.construction.private kernel ;

M: ##shuffle-vector-imm ssa-rename-insn-uses
    [ top-name ] change-src drop ;


USING: accessors arrays compiler.cfg.instructions
compiler.cfg.representations.preferred ;

M: ##shuffle-vector-imm uses-vreg-reps rep>> 1array ;


USING: accessors arrays compiler.cfg.def-use
compiler.cfg.instructions ;

M: ##shuffle-vector-imm uses-vregs src>> 1array ;