##shr-imm
Basic block instructions

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Next:	##sub

Vocabulary
compiler.cfg.instructions

Definition

IN: compiler.cfg.instructions

TUPLE: ##shr-imm < foldable-insn dst src1 src2 insn# ;

Methods

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

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


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

M: ##shr-imm >avail-insn-uses
    [ dup >avail-vreg swap or ] change-src1 drop ;


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

M: ##shr-imm >expr
    \ ##shr-imm swap [ src1>> vreg>vn ] keep [ src2>> ] keep
    drop 3 f <array> 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: ##shr-imm >expr
    \ ##shr-imm swap [ src1>> vreg>vn ] keep [ src2>> ] keep
    drop 3 f <array> 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: ##shr-imm assign-insn-defs [ vreg>reg ] change-dst drop ;


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

M: ##shr-imm assign-insn-uses [ vreg>reg ] change-src1 drop ;


USING: compiler.cfg.instructions
compiler.cfg.value-numbering.folding kernel layouts math
math.bitwise ;

M: ##shr-imm binary-constant-fold*
    drop [ cell-bits 2^ wrap ] dip neg shift ;


USING: compiler.cfg.gvn.folding compiler.cfg.instructions kernel
layouts math math.bitwise ;

M: ##shr-imm binary-constant-fold*
    drop [ cell-bits 2^ wrap ] dip neg shift ;


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

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


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

M: ##shr-imm convert-insn-uses
    [ converted-value ] change-src1 drop ;


USING: compiler.cfg.instructions
compiler.cfg.representations.preferred cpu.architecture kernel ;

M: ##shr-imm defs-vreg-reps drop { int-rep } ;


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

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


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

M: ##shr-imm generate-insn
    [ dst>> ] keep [ src1>> ] keep [ src2>> ] keep drop %shr-imm
    ;


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

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


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

M: ##shr-imm rename-insn-uses
    [ rename-value ] change-src1 drop ;


USING: accessors combinators compiler.cfg.gvn.avail
compiler.cfg.gvn.folding compiler.cfg.gvn.graph
compiler.cfg.gvn.math compiler.cfg.gvn.rewrite
compiler.cfg.instructions kernel ;

M: ##shr-imm rewrite
    {
        { [ dup src2>> 0 = ] [ identity ] }
        {
            [ dup binary-constant-fold? ]
            [ binary-constant-fold ]
        }
        {
            [
                dup src1>> vreg>insn
                [ ##shr-imm? ] with-available-uses?
            ]
            [ ##shr-imm reassociate-shift ]
        }
        [ drop f ]
    } cond ;


USING: accessors combinators compiler.cfg.instructions
compiler.cfg.value-numbering.folding
compiler.cfg.value-numbering.graph
compiler.cfg.value-numbering.math
compiler.cfg.value-numbering.rewrite kernel ;

M: ##shr-imm rewrite
    {
        { [ dup src2>> 0 = ] [ identity ] }
        {
            [ dup binary-constant-fold? ]
            [ binary-constant-fold ]
        }
        {
            [ dup src1>> vreg>insn ##shr-imm? ]
            [ ##shr-imm reassociate-shift ]
        }
        [ drop f ]
    } cond ;


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

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


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

M: ##shr-imm ssa-rename-insn-uses
    [ top-name ] change-src1 drop ;


USING: compiler.cfg.instructions
compiler.cfg.representations.preferred cpu.architecture kernel ;

M: ##shr-imm uses-vreg-reps drop { int-rep } ;


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

M: ##shr-imm uses-vregs src1>> 1array ;