emit-branch ( bb successor -- )

Vocabulary

compiler.codegen

Inputs

bb	a basic-block
successor	a basic-block

Outputs

None

Word description

Emits a branching instruction for jumping from one block to the next. If the blocks are next to each other, then no jump is needed.

See also

%jump-label

Definition

USING: cpu.architecture kernel ;

IN: compiler.codegen

: emit-branch ( bb successor -- )
    2dup useless-branch?
    [ 2drop ] [ nip lookup-label %jump-label ] if ;