##compare-imm-branch
Basic block instructions

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Vocabulary
compiler.cfg.instructions

Class description
The instruction used to implement branching for the if word.

Definition

IN: compiler.cfg.instructions

TUPLE: ##compare-imm-branch < vreg-insn src1 src2 cc insn# ;

Methods

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

M: ##compare-imm-branch >avail-insn-uses
    [ dup >avail-vreg or* ] change-src1 drop ;


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

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


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

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


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

M: ##compare-imm-branch generate-conditional-insn
    [ src1>> ] keep [ src2>> ] keep [ cc>> ] keep drop
    %compare-imm-branch ;


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

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


USING: combinators compiler.cfg.gvn.comparisons
compiler.cfg.gvn.rewrite compiler.cfg.instructions kernel ;

M: ##compare-imm-branch rewrite
    {
        {
            [ dup rewrite-boolean-comparison? ]
            [ rewrite-boolean-comparison ]
        }
        {
            [ dup fold-compare-imm? ]
            [ fold-compare-imm-branch ]
        }
        [ drop f ]
    } cond ;


USING: combinators compiler.cfg.instructions
compiler.cfg.value-numbering.comparisons
compiler.cfg.value-numbering.rewrite kernel ;

M: ##compare-imm-branch rewrite
    {
        {
            [ dup rewrite-boolean-comparison? ]
            [ rewrite-boolean-comparison ]
        }
        {
            [ dup fold-compare-imm? ]
            [ fold-compare-imm-branch ]
        }
        [ drop f ]
    } cond ;


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

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


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

M: ##compare-imm-branch uses-vreg-reps drop { tagged-rep } ;


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

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