unary-constant-fold ( insn -- insn' )

Vocabulary

compiler.cfg.value-numbering.folding

Inputs

insn

an object

Outputs

insn'

an object

Definition

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

IN: compiler.cfg.value-numbering.folding

: unary-constant-fold ( insn -- insn' )
    [ dst>> ]
    [ [ src>> vreg>integer ] [ ] bi unary-constant-fold* ] bi
    dup float?
    [ ##load-reference new-insn ]
    [ cell-bits >signed ##load-integer new-insn ] if ; inline