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compiler.cfg.write-barrier: more use of hash-sets.

db4
John Benediktsson 2013-03-08 12:30:37 -08:00
parent 88626d38ca
commit 9d43e21563
1 changed files with 7 additions and 7 deletions
basis/compiler/cfg/write-barrier

14
basis/compiler/cfg/write-barrier/write-barrier.factor
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@ -20,13 +20,13 @@ SYMBOL: copies
GENERIC: eliminate-write-barrier ( insn -- ? )
: fresh-allocation ( vreg -- )
fresh-allocations get conjoin ;
fresh-allocations get adjoin ;
M: ##allot eliminate-write-barrier
dst>> fresh-allocation t ;
: mutated-object ( vreg -- )
resolve-copy mutated-objects get conjoin ;
resolve-copy mutated-objects get adjoin ;
M: ##set-slot eliminate-write-barrier
obj>> mutated-object t ;
@ -36,8 +36,8 @@ M: ##set-slot-imm eliminate-write-barrier
: needs-write-barrier? ( insn -- ? )
resolve-copy {
[ fresh-allocations get key? not ]
[ mutated-objects get key? ]
[ fresh-allocations get in? not ]
[ mutated-objects get in? ]
} 1&& ;
M: ##write-barrier eliminate-write-barrier
@ -47,7 +47,7 @@ M: ##write-barrier-imm eliminate-write-barrier
src>> needs-write-barrier? ;
M: gc-map-insn eliminate-write-barrier
fresh-allocations get clear-assoc ;
fresh-allocations get clear-set ;
M: ##copy eliminate-write-barrier
[ src>> resolve-copy ] [ dst>> ] bi copies get set-at t ;
@ -55,8 +55,8 @@ M: ##copy eliminate-write-barrier
M: insn eliminate-write-barrier drop t ;
: write-barriers-step ( insns -- insns' )
H{ } clone fresh-allocations set
H{ } clone mutated-objects set
HS{ } clone fresh-allocations set
HS{ } clone mutated-objects set
H{ } clone copies set
[ eliminate-write-barrier ] filter! ;