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-rw-r--r--lib/compiler/src/sys_core_fold.erl9
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/compiler/src/sys_core_fold.erl b/lib/compiler/src/sys_core_fold.erl
index f3f315935a..df880ff784 100644
--- a/lib/compiler/src/sys_core_fold.erl
+++ b/lib/compiler/src/sys_core_fold.erl
@@ -418,6 +418,15 @@ expr(#c_call{module=M0,name=N0}=Call0, Ctxt, Sub) ->
expr(#c_primop{args=As0}=Prim, _, Sub) ->
As1 = expr_list(As0, value, Sub),
Prim#c_primop{args=As1};
+expr(#c_catch{anno=Anno,body=B}, effect, Sub) ->
+ %% When the return value of the 'catch' is ignored, we can replace it
+ %% with a try/catch to avoid building a stack trace when an exception
+ %% occurs.
+ Var = #c_var{name='catch_value'},
+ Evs = [#c_var{name='Class'},#c_var{name='Reason'},#c_var{name='Stk'}],
+ Try = #c_try{anno=Anno,arg=B,vars=[Var],body=Var,
+ evars=Evs,handler=void()},
+ expr(Try, effect, Sub);
expr(#c_catch{body=B0}=Catch, _, Sub) ->
%% We can remove catch if the value is simple
B1 = body(B0, value, Sub),