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

Prev:	coalesce-cfg ( cfg -- )
Next:	try-eliminate-copy ( follower leader must? -- )

Vocabulary
compiler.cfg.ssa.destruction.coalescing

Inputs

pairs	a sequence of vreg pairs
must?	a boolean

Outputs
None

Word description
Tries to eliminate the vreg copies in the sequence 'pairs'. If 'must?' is t then a vregs-shouldn't-interfere error is thrown if any of the vregs interfere.

See also
try-eliminate-copy

Definition

USING: kernel sequences ;

IN: compiler.cfg.ssa.destruction.coalescing

: try-eliminate-copies ( pairs must? -- )
    [ [ first2 ] ] dip [ try-eliminate-copy ] curry compose each
    ;