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-rw-r--r--lib/compiler/doc/src/compile.xml26
-rw-r--r--lib/compiler/src/sys_core_fold.erl112
-rw-r--r--lib/compiler/test/inline_SUITE.erl43
3 files changed, 145 insertions, 36 deletions
diff --git a/lib/compiler/doc/src/compile.xml b/lib/compiler/doc/src/compile.xml
index 27d750f929..ddaae2655d 100644
--- a/lib/compiler/doc/src/compile.xml
+++ b/lib/compiler/doc/src/compile.xml
@@ -816,6 +816,32 @@ pi() -> 3.1416.
</section>
<section>
+ <title>Inlining of list functions</title>
+ <p>The compiler can also inline a variety of list manipulation functions
+ from the stdlib's lists module.</p>
+
+ <p>This feature must be explicitly enabled with a compiler option or a
+ <c>-compile()</c> attribute in the source module.</p>
+
+ <p>To enable inlining of list functions, use the <c>inline_list_funcs</c>
+ option.</p>
+
+ <p>The following functions are inlined:</p>
+ <list type="bulleted">
+ <item><seealso marker="stdlib:lists#all/2">lists:all/2</seealso></item>
+ <item><seealso marker="stdlib:lists#any/2">lists:any/2</seealso></item>
+ <item><seealso marker="stdlib:lists#foreach/2">lists:foreach/2</seealso></item>
+ <item><seealso marker="stdlib:lists#map/2">lists:map/2</seealso></item>
+ <item><seealso marker="stdlib:lists#flatmap/2">lists:flatmap/2</seealso></item>
+ <item><seealso marker="stdlib:lists#filter/2">lists:filter/2</seealso></item>
+ <item><seealso marker="stdlib:lists#foldl/3">lists:foldl/3</seealso></item>
+ <item><seealso marker="stdlib:lists#foldr/3">lists:foldr/3</seealso></item>
+ <item><seealso marker="stdlib:lists#mapfoldl/3">lists:mapfoldl/3</seealso></item>
+ <item><seealso marker="stdlib:lists#mapfoldr/3">lists:mapfoldr/3</seealso></item>
+ </list>
+ </section>
+
+ <section>
<title>Parse Transformations</title>
<p>Parse transformations are used when a programmer wants to use
diff --git a/lib/compiler/src/sys_core_fold.erl b/lib/compiler/src/sys_core_fold.erl
index 18fba7962b..f17b0bd130 100644
--- a/lib/compiler/src/sys_core_fold.erl
+++ b/lib/compiler/src/sys_core_fold.erl
@@ -686,11 +686,14 @@ call_1(#c_call{anno=Anno}, lists, all, [Arg1,Arg2], Sub) ->
C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
body=#c_case{arg=#c_apply{anno=Anno, op=F, args=[X]},
clauses = [CC1, CC2, CC3]}},
- C2 = #c_clause{pats=[#c_literal{val=[]}], guard=#c_literal{val=true},
+ C2 = #c_clause{pats=[#c_literal{val=[]}],
+ guard=#c_call{module=#c_literal{val=erlang},
+ name=#c_literal{val=is_function},
+ args=[F, #c_literal{val=1}]},
body=#c_literal{val=true}},
- Err2 = #c_tuple{es=[#c_literal{val='function_clause'}, Xs]},
+ Err2 = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]},
C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
- body=match_fail(Anno, Err2)},
+ body=match_fail([{function_name,{'lists^all',1}}|Anno], Err2)},
Fun = #c_fun{vars=[Xs],
body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
L = #c_var{name='L'},
@@ -713,11 +716,14 @@ call_1(#c_call{anno=Anno}, lists, any, [Arg1,Arg2], Sub) ->
C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
body=#c_case{arg=#c_apply{anno=Anno, op=F, args=[X]},
clauses = [CC1, CC2, CC3]}},
- C2 = #c_clause{pats=[#c_literal{val=[]}], guard=#c_literal{val=true},
+ C2 = #c_clause{pats=[#c_literal{val=[]}],
+ guard=#c_call{module=#c_literal{val=erlang},
+ name=#c_literal{val=is_function},
+ args=[F, #c_literal{val=1}]},
body=#c_literal{val=false}},
- Err2 = #c_tuple{es=[#c_literal{val='function_clause'}, Xs]},
+ Err2 = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]},
C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
- body=match_fail(Anno, Err2)},
+ body=match_fail([{function_name,{'lists^any',1}}|Anno], Err2)},
Fun = #c_fun{vars=[Xs],
body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
L = #c_var{name='L'},
@@ -733,11 +739,14 @@ call_1(#c_call{anno=Anno}, lists, foreach, [Arg1,Arg2], Sub) ->
C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
body=#c_seq{arg=#c_apply{anno=Anno, op=F, args=[X]},
body=#c_apply{anno=Anno, op=Loop, args=[Xs]}}},
- C2 = #c_clause{pats=[#c_literal{val=[]}], guard=#c_literal{val=true},
+ C2 = #c_clause{pats=[#c_literal{val=[]}],
+ guard=#c_call{module=#c_literal{val=erlang},
+ name=#c_literal{val=is_function},
+ args=[F, #c_literal{val=1}]},
body=#c_literal{val=ok}},
- Err = #c_tuple{es=[#c_literal{val='function_clause'}, Xs]},
+ Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]},
C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
- body=match_fail(Anno, Err)},
+ body=match_fail([{function_name,{'lists^foreach',1}}|Anno], Err)},
Fun = #c_fun{vars=[Xs],
body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
L = #c_var{name='L'},
@@ -756,14 +765,18 @@ call_1(#c_call{anno=Anno}, lists, map, [Arg1,Arg2], Sub) ->
op=F,
args=[X]},
body=#c_cons{hd=H,
+ anno=[compiler_generated],
tl=#c_apply{anno=Anno,
op=Loop,
args=[Xs]}}}},
- C2 = #c_clause{pats=[#c_literal{val=[]}], guard=#c_literal{val=true},
+ C2 = #c_clause{pats=[#c_literal{val=[]}],
+ guard=#c_call{module=#c_literal{val=erlang},
+ name=#c_literal{val=is_function},
+ args=[F, #c_literal{val=1}]},
body=#c_literal{val=[]}},
- Err = #c_tuple{es=[#c_literal{val='function_clause'}, Xs]},
+ Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]},
C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
- body=match_fail(Anno, Err)},
+ body=match_fail([{function_name,{'lists^map',1}}|Anno], Err)},
Fun = #c_fun{vars=[Xs],
body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
L = #c_var{name='L'},
@@ -780,18 +793,21 @@ call_1(#c_call{anno=Anno}, lists, flatmap, [Arg1,Arg2], Sub) ->
C1 = #c_clause{pats=[#c_cons{hd=X, tl=Xs}], guard=#c_literal{val=true},
body=#c_let{vars=[H],
arg=#c_apply{anno=Anno, op=F, args=[X]},
- body=#c_call{anno=Anno,
+ body=#c_call{anno=[compiler_generated|Anno],
module=#c_literal{val=erlang},
name=#c_literal{val='++'},
args=[H,
#c_apply{anno=Anno,
op=Loop,
args=[Xs]}]}}},
- C2 = #c_clause{pats=[#c_literal{val=[]}], guard=#c_literal{val=true},
+ C2 = #c_clause{pats=[#c_literal{val=[]}],
+ guard=#c_call{module=#c_literal{val=erlang},
+ name=#c_literal{val=is_function},
+ args=[F, #c_literal{val=1}]},
body=#c_literal{val=[]}},
- Err = #c_tuple{es=[#c_literal{val='function_clause'}, Xs]},
+ Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]},
C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
- body=match_fail(Anno, Err)},
+ body=match_fail([{function_name,{'lists^flatmap',1}}|Anno], Err)},
Fun = #c_fun{vars=[Xs],
body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
L = #c_var{name='L'},
@@ -807,7 +823,7 @@ call_1(#c_call{anno=Anno}, lists, filter, [Arg1,Arg2], Sub) ->
B = #c_var{name='B'},
Err1 = #c_tuple{es=[#c_literal{val='case_clause'}, X]},
CC1 = #c_clause{pats=[#c_literal{val=true}], guard=#c_literal{val=true},
- body=#c_cons{hd=X, tl=Xs}},
+ body=#c_cons{anno=[compiler_generated], hd=X, tl=Xs}},
CC2 = #c_clause{pats=[#c_literal{val=false}], guard=#c_literal{val=true},
body=Xs},
CC3 = #c_clause{pats=[X], guard=#c_literal{val=true},
@@ -821,11 +837,14 @@ call_1(#c_call{anno=Anno}, lists, filter, [Arg1,Arg2], Sub) ->
op=Loop,
args=[Xs]},
body=Case}}},
- C2 = #c_clause{pats=[#c_literal{val=[]}], guard=#c_literal{val=true},
+ C2 = #c_clause{pats=[#c_literal{val=[]}],
+ guard=#c_call{module=#c_literal{val=erlang},
+ name=#c_literal{val=is_function},
+ args=[F, #c_literal{val=1}]},
body=#c_literal{val=[]}},
- Err2 = #c_tuple{es=[#c_literal{val='function_clause'}, Xs]},
+ Err2 = #c_tuple{es=[#c_literal{val='function_clause'}, F, Xs]},
C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
- body=match_fail(Anno, Err2)},
+ body=match_fail([{function_name,{'lists^filter',1}}|Anno], Err2)},
Fun = #c_fun{vars=[Xs],
body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
L = #c_var{name='L'},
@@ -845,10 +864,14 @@ call_1(#c_call{anno=Anno}, lists, foldl, [Arg1,Arg2,Arg3], Sub) ->
args=[Xs, #c_apply{anno=Anno,
op=F,
args=[X, A]}]}},
- C2 = #c_clause{pats=[#c_literal{val=[]}], guard=#c_literal{val=true}, body=A},
- Err = #c_tuple{es=[#c_literal{val='function_clause'}, Xs]},
+ C2 = #c_clause{pats=[#c_literal{val=[]}],
+ guard=#c_call{module=#c_literal{val=erlang},
+ name=#c_literal{val=is_function},
+ args=[F, #c_literal{val=2}]},
+ body=A},
+ Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, A, Xs]},
C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
- body=match_fail(Anno, Err)},
+ body=match_fail([{function_name,{'lists^foldl',2}}|Anno], Err)},
Fun = #c_fun{vars=[Xs, A],
body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
L = #c_var{name='L'},
@@ -868,10 +891,14 @@ call_1(#c_call{anno=Anno}, lists, foldr, [Arg1,Arg2,Arg3], Sub) ->
args=[X, #c_apply{anno=Anno,
op=Loop,
args=[Xs, A]}]}},
- C2 = #c_clause{pats=[#c_literal{val=[]}], guard=#c_literal{val=true}, body=A},
- Err = #c_tuple{es=[#c_literal{val='function_clause'}, Xs]},
+ C2 = #c_clause{pats=[#c_literal{val=[]}],
+ guard=#c_call{module=#c_literal{val=erlang},
+ name=#c_literal{val=is_function},
+ args=[F, #c_literal{val=2}]},
+ body=A},
+ Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, A, Xs]},
C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
- body=match_fail(Anno, Err)},
+ body=match_fail([{function_name,{'lists^foldr',2}}|Anno], Err)},
Fun = #c_fun{vars=[Xs, A],
body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
L = #c_var{name='L'},
@@ -901,7 +928,10 @@ call_1(#c_call{anno=Anno}, lists, mapfoldl, [Arg1,Arg2,Arg3], Sub) ->
op=Loop,
args=[Xs, Avar]},
#c_tuple{es=[Xs, Avar]},
- #c_tuple{es=[#c_cons{hd=X, tl=Xs}, Avar]})
+ #c_tuple{anno=[compiler_generated],
+ es=[#c_cons{anno=[compiler_generated],
+ hd=X, tl=Xs},
+ Avar]})
%%% Multiple-value version
%%% #c_let{vars=[Xs,A],
%%% %% The tuple here will be optimised
@@ -910,14 +940,18 @@ call_1(#c_call{anno=Anno}, lists, mapfoldl, [Arg1,Arg2,Arg3], Sub) ->
%%% body=#c_values{es=[#c_cons{hd=X, tl=Xs},
%%% A]}}
)},
- C2 = #c_clause{pats=[#c_literal{val=[]}], guard=#c_literal{val=true},
+ C2 = #c_clause{pats=[#c_literal{val=[]}],
+ guard=#c_call{module=#c_literal{val=erlang},
+ name=#c_literal{val=is_function},
+ args=[F, #c_literal{val=2}]},
%%% Tuple passing version
- body=#c_tuple{es=[#c_literal{val=[]}, Avar]}},
+ body=#c_tuple{anno=[compiler_generated],
+ es=[#c_literal{val=[]}, Avar]}},
%%% Multiple-value version
%%% body=#c_values{es=[#c_literal{val=[]}, A]}},
- Err = #c_tuple{es=[#c_literal{val='function_clause'}, Xs]},
+ Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Avar, Xs]},
C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
- body=match_fail(Anno, Err)},
+ body=match_fail([{function_name,{'lists^mapfoldl',2}}|Anno], Err)},
Fun = #c_fun{vars=[Xs, Avar],
body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
L = #c_var{name='L'},
@@ -955,7 +989,9 @@ call_1(#c_call{anno=Anno}, lists, mapfoldr, [Arg1,Arg2,Arg3], Sub) ->
#c_tuple{es=[Xs, Avar]},
Match(#c_apply{anno=Anno, op=F, args=[X, Avar]},
#c_tuple{es=[X, Avar]},
- #c_tuple{es=[#c_cons{hd=X, tl=Xs}, Avar]}))
+ #c_tuple{anno=[compiler_generated],
+ es=[#c_cons{anno=[compiler_generated],
+ hd=X, tl=Xs}, Avar]}))
%%% Multiple-value version
%%% body=#c_let{vars=[Xs,A],
%%% %% The tuple will be optimised away
@@ -965,14 +1001,18 @@ call_1(#c_call{anno=Anno}, lists, mapfoldr, [Arg1,Arg2,Arg3], Sub) ->
%%% #c_values{es=[#c_cons{hd=X, tl=Xs},
%%% A]})}
},
- C2 = #c_clause{pats=[#c_literal{val=[]}], guard=#c_literal{val=true},
+ C2 = #c_clause{pats=[#c_literal{val=[]}],
+ guard=#c_call{module=#c_literal{val=erlang},
+ name=#c_literal{val=is_function},
+ args=[F, #c_literal{val=2}]},
%%% Tuple passing version
- body=#c_tuple{es=[#c_literal{val=[]}, Avar]}},
+ body=#c_tuple{anno=[compiler_generated],
+ es=[#c_literal{val=[]}, Avar]}},
%%% Multiple-value version
%%% body=#c_values{es=[#c_literal{val=[]}, A]}},
- Err = #c_tuple{es=[#c_literal{val='function_clause'}, Xs]},
+ Err = #c_tuple{es=[#c_literal{val='function_clause'}, F, Avar, Xs]},
C3 = #c_clause{pats=[Xs], guard=#c_literal{val=true},
- body=match_fail(Anno, Err)},
+ body=match_fail([{function_name,{'lists^mapfoldr',2}}|Anno], Err)},
Fun = #c_fun{vars=[Xs, Avar],
body=#c_case{arg=Xs, clauses=[C1, C2, C3]}},
L = #c_var{name='L'},
diff --git a/lib/compiler/test/inline_SUITE.erl b/lib/compiler/test/inline_SUITE.erl
index e2eb6a0dec..6dc7548437 100644
--- a/lib/compiler/test/inline_SUITE.erl
+++ b/lib/compiler/test/inline_SUITE.erl
@@ -258,6 +258,49 @@ lists(Config) when is_list(Config) ->
%% Cleanup.
erase(?MODULE),
+
+ {'EXIT',{function_clause,[{?MODULE,_,[_,not_a_list],_}|_]}} =
+ (catch lists:map(fun (X) -> X end, not_a_list)),
+ {'EXIT',{function_clause,[{?MODULE,_,[_,not_a_list],_}|_]}} =
+ (catch lists:flatmap(fun (X) -> X end, not_a_list)),
+ {'EXIT',{function_clause,[{?MODULE,_,[_,not_a_list],_}|_]}} =
+ (catch lists:foreach(fun (X) -> X end, not_a_list)),
+ {'EXIT',{function_clause,[{?MODULE,_,[_,not_a_list],_}|_]}} =
+ (catch lists:filter(fun (_) -> true end, not_a_list)),
+ {'EXIT',{function_clause,[{?MODULE,_,[_,not_a_list],_}|_]}} =
+ (catch lists:any(fun (_) -> false end, not_a_list)),
+ {'EXIT',{function_clause,[{?MODULE,_,[_,not_a_list],_}|_]}} =
+ (catch lists:all(fun (_) -> true end, not_a_list)),
+ {'EXIT',{function_clause,[{?MODULE,_,[_,acc,not_a_list],_}|_]}} =
+ (catch lists:foldl(fun (X, Acc) -> {X,Acc} end, acc, not_a_list)),
+ {'EXIT',{function_clause,[{?MODULE,_,[_,acc,not_a_list],_}|_]}} =
+ (catch lists:foldr(fun (X, Acc) -> {X,Acc} end, acc, not_a_list)),
+ {'EXIT',{function_clause,[{?MODULE,_,[_,acc,not_a_list],_}|_]}} =
+ (catch lists:mapfoldl(fun (X, Acc) -> {X,Acc} end, acc, not_a_list)),
+ {'EXIT',{function_clause,[{?MODULE,_,[_,acc,not_a_list],_}|_]}} =
+ (catch lists:mapfoldr(fun (X, Acc) -> {X,Acc} end, acc, not_a_list)),
+
+ {'EXIT',{function_clause,[{?MODULE,_,[not_a_function,[]],_}|_]}} =
+ (catch lists:map(not_a_function, [])),
+ {'EXIT',{function_clause,[{?MODULE,_,[not_a_function,[]],_}|_]}} =
+ (catch lists:flatmap(not_a_function, [])),
+ {'EXIT',{function_clause,[{?MODULE,_,[not_a_function,[]],_}|_]}} =
+ (catch lists:foreach(not_a_function, [])),
+ {'EXIT',{function_clause,[{?MODULE,_,[not_a_function,[]],_}|_]}} =
+ (catch lists:filter(not_a_function, [])),
+ {'EXIT',{function_clause,[{?MODULE,_,[not_a_function,[]],_}|_]}} =
+ (catch lists:any(not_a_function, [])),
+ {'EXIT',{function_clause,[{?MODULE,_,[not_a_function,[]],_}|_]}} =
+ (catch lists:all(not_a_function, [])),
+ {'EXIT',{function_clause,[{?MODULE,_,[not_a_function,acc,[]],_}|_]}} =
+ (catch lists:foldl(not_a_function, acc, [])),
+ {'EXIT',{function_clause,[{?MODULE,_,[not_a_function,acc,[]],_}|_]}} =
+ (catch lists:foldr(not_a_function, acc, [])),
+ {'EXIT',{function_clause,[{?MODULE,_,[not_a_function,acc,[]],_}|_]}} =
+ (catch lists:mapfoldl(not_a_function, acc, [])),
+ {'EXIT',{function_clause,[{?MODULE,_,[not_a_function,acc,[]],_}|_]}} =
+ (catch lists:mapfoldr(not_a_function, acc, [])),
+
ok.
my_apply(M, F, A, Init) ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 05:26:04 +0000