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authorBjörn-Egil Dahlberg <[email protected]>2014-10-07 18:04:45 +0200
committerBjörn-Egil Dahlberg <[email protected]>2014-10-07 18:29:39 +0200
commit891a1ed42acf41fc855f6cb5db9c122a28078c8b (patch)
tree4547c6ad7bfc9845dda49839df6c03eb5f5dad62 /lib/compiler/src
parent610c746c0795ec9a96f960ea6461ef56d6d2ee24 (diff)
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compiler: Type map optimization
Diffstat (limited to 'lib/compiler/src')
-rw-r--r--lib/compiler/src/beam_type.erl10
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/compiler/src/beam_type.erl b/lib/compiler/src/beam_type.erl
index 58c0f765ae..4459c92df5 100644
--- a/lib/compiler/src/beam_type.erl
+++ b/lib/compiler/src/beam_type.erl
@@ -106,6 +106,13 @@ simplify_basic_1([{test,test_arity,_,[R,Arity]}=I|Is], Ts0, Acc) ->
Ts = update(I, Ts0),
simplify_basic_1(Is, Ts, [I|Acc])
end;
+simplify_basic_1([{test,is_map,_,[R]}=I|Is], Ts0, Acc) ->
+ case tdb_find(R, Ts0) of
+ map -> simplify_basic_1(Is, Ts0, Acc);
+ _Other ->
+ Ts = update(I, Ts0),
+ simplify_basic_1(Is, Ts, [I|Acc])
+ end;
simplify_basic_1([{test,is_eq_exact,Fail,[R,{atom,_}=Atom]}=I|Is0], Ts0, Acc0) ->
Acc = case tdb_find(R, Ts0) of
{atom,_}=Atom -> Acc0;
@@ -402,6 +409,8 @@ update({test,is_float,_Fail,[Src]}, Ts0) ->
tdb_update([{Src,float}], Ts0);
update({test,test_arity,_Fail,[Src,Arity]}, Ts0) ->
tdb_update([{Src,{tuple,Arity,[]}}], Ts0);
+update({test,is_map,_Fail,[Src]}, Ts0) ->
+ tdb_update([{Src,map}], Ts0);
update({test,is_eq_exact,_,[Reg,{atom,_}=Atom]}, Ts) ->
case tdb_find(Reg, Ts) of
error ->
@@ -710,6 +719,7 @@ merge_type_info(NewType, _) ->
verify_type(NewType),
NewType.
+verify_type(map) -> ok;
verify_type({tuple,Sz,[]}) when is_integer(Sz) -> ok;
verify_type({tuple,Sz,[_]}) when is_integer(Sz) -> ok;
verify_type({tuple_element,_,_}) -> ok;