From 46cad6ef63c4b9adc7b9fd795e8484c03e73dce5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn-Egil=20Dahlberg?= Date: Fri, 7 Feb 2014 18:28:07 +0100 Subject: compiler: Add debug listing after sys_core_fold --- lib/compiler/src/compile.erl | 1 + 1 file changed, 1 insertion(+) (limited to 'lib') diff --git a/lib/compiler/src/compile.erl b/lib/compiler/src/compile.erl index 0bb4de6f17..5588f1fbe5 100644 --- a/lib/compiler/src/compile.erl +++ b/lib/compiler/src/compile.erl @@ -623,6 +623,7 @@ core_passes() -> [{core_old_inliner,fun test_old_inliner/1,fun core_old_inliner/1}, {iff,doldinline,{listing,"oldinline"}}, ?pass(core_fold_module), + {iff,dcorefold,{listing,"corefold"}}, {core_inline_module,fun test_core_inliner/1,fun core_inline_module/1}, {iff,dinline,{listing,"inline"}}, {core_fold_after_inlining,fun test_core_inliner/1,fun core_fold_module_after_inlining/1}, -- cgit v1.2.3 From 67663e057a35dfee45bf802539738b8ef107bd32 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn-Egil=20Dahlberg?= Date: Fri, 7 Feb 2014 18:28:29 +0100 Subject: compiler: Fix sys_core_fold let optimization Map variable was not covered and faulty optimization could occur. Ex. t() -> M0 = id(#{ "a" => 1 }), #{ "a" := _ } = M0, M0#{ "a" := b }. M0 was lost in let expression optimization. --- lib/compiler/src/core_lib.erl | 4 ++-- lib/compiler/test/map_SUITE.erl | 11 +++++++++++ 2 files changed, 13 insertions(+), 2 deletions(-) (limited to 'lib') diff --git a/lib/compiler/src/core_lib.erl b/lib/compiler/src/core_lib.erl index f506901099..ed181e3baa 100644 --- a/lib/compiler/src/core_lib.erl +++ b/lib/compiler/src/core_lib.erl @@ -105,8 +105,8 @@ vu_expr(V, #c_cons{hd=H,tl=T}) -> vu_expr(V, H) orelse vu_expr(V, T); vu_expr(V, #c_tuple{es=Es}) -> vu_expr_list(V, Es); -vu_expr(V, #c_map{es=Es}) -> - vu_expr_list(V, Es); +vu_expr(V, #c_map{var=M,es=Es}) -> + vu_expr(V, M) orelse vu_expr_list(V, Es); vu_expr(V, #c_map_pair{key=Key,val=Val}) -> vu_expr_list(V, [Key,Val]); vu_expr(V, #c_binary{segments=Ss}) -> diff --git a/lib/compiler/test/map_SUITE.erl b/lib/compiler/test/map_SUITE.erl index dc880a7a9d..cad6ac6887 100644 --- a/lib/compiler/test/map_SUITE.erl +++ b/lib/compiler/test/map_SUITE.erl @@ -179,6 +179,17 @@ t_update_map_expressions(Config) when is_list(Config) -> #{ a :=42, b:=42, c:=42 } = (maps:from_list([{a,1},{b,2},{c,3}]))#{ a := 42, b := 42, c := 42 }, #{ "a" :=1, "b":=42, "c":=42 } = (maps:from_list([{"a",1},{"b",2}]))#{ "b" := 42, "c" => 42 }, + %% Test need to be in a fun. + %% This tests that let expr optimisation in sys_core_fold + %% covers maps correctly. + F = fun() -> + M0 = id(#{ "a" => [1,2,3] }), + #{ "a" := _ } = M0, + M0#{ "a" := b } + end, + + #{ "a" := b } = F(), + %% Error cases, FIXME: should be 'badmap'? {'EXIT',{badarg,_}} = (catch (id(<<>>))#{ a := 42, b => 2 }), {'EXIT',{badarg,_}} = (catch (id([]))#{ a := 42, b => 2 }), -- cgit v1.2.3