Word description Emits a call to the given word to the cfg being constructed. "height" is the number of items being added to or removed from the data stack.
Side effects of the word is that it modifies the "basic-block" and height-state variables.
Examples In this example, a call to a dummy word is emitted which pushes three items onto the stack.
USING: compiler.cfg.builder compiler.cfg.builder.blocks compiler.cfg.stacks
kernel make prettyprint ;
begin-stack-analysis <basic-block> set-basic-block
\ dummy 3 [ emit-call ] { } make drop
height-state basic-block [ get . ] bi@
{ { 3 0 } { 0 0 } }
T{ basic-block
{ id 1903165 }
{ successors
V{
T{ basic-block
{ id 1903166 }
{ instructions
V{
T{ ##call { word dummy } }
T{ ##branch }
}
}
{ successors
V{ T{ basic-block { id 1903167 } } }
}
{ kill-block? t }
}
}
} }