diff options
Diffstat (limited to 'lib/compiler/src/sys_core_fold.erl')
| -rw-r--r-- | lib/compiler/src/sys_core_fold.erl | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/lib/compiler/src/sys_core_fold.erl b/lib/compiler/src/sys_core_fold.erl index a9bd363ee1..395b6bd677 100644 --- a/lib/compiler/src/sys_core_fold.erl +++ b/lib/compiler/src/sys_core_fold.erl @@ -108,17 +108,29 @@ module(#c_module{defs=Ds0}=Mod, Opts) -> put(no_inline_list_funcs, not member(inline_list_funcs, Opts)), - case get(new_var_num) of - undefined -> put(new_var_num, 0); - _ -> ok - end, init_warnings(), Ds1 = [function_1(D) || D <- Ds0], + erase(new_var_num), erase(no_inline_list_funcs), {ok,Mod#c_module{defs=Ds1},get_warnings()}. function_1({#c_var{name={F,Arity}}=Name,B0}) -> + %% Find a suitable starting value for the variable counter. Note + %% that this pass assumes that new_var_name/1 returns a variable + %% name distinct from any variable used in the entire body of + %% the function. We use integers as variable names to avoid + %% filling up the atom table when compiling huge functions. + Count = cerl_trees:next_free_variable_name(B0), + put(new_var_num, Count), try + %% Find a suitable starting value for the variable + %% counter. Note that this pass assumes that new_var_name/1 + %% returns a variable name distinct from any variable used in + %% the entire body of the function. We use integers as + %% variable names to avoid filling up the atom table when + %% compiling huge functions. + Count = cerl_trees:next_free_variable_name(B0), + put(new_var_num, Count), B = find_fixpoint(fun(Core) -> %% This must be a fun! expr(Core, value, sub_new()) @@ -2154,7 +2166,7 @@ make_var(A) -> make_var_name() -> N = get(new_var_num), put(new_var_num, N+1), - list_to_atom("@f"++integer_to_list(N)). + N. letify(Bs, Body) -> Ann = cerl:get_ann(Body), |