coalesce-cfg ( cfg -- )
Vreg Coalescing

Next:

try-eliminate-copies ( pairs must? -- )

Vocabulary
compiler.cfg.ssa.destruction.coalescing

Inputs

cfg

a cfg

Outputs
None

Word description
In this step, leader-map info is calculated.

Definition

USING: compiler.cfg.linearization kernel make sequences ;

IN: compiler.cfg.ssa.destruction.coalescing

: coalesce-cfg ( cfg -- )
    cfg>insns-rpo dup init-coalescing
    [ [ [ coalesce-now ] [ coalesce-later ] bi ] each ] { } make
    [ first2 eliminatable-copy? ] filter f try-eliminate-copies
    ;