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Get rid of unnecessary return instruction after tail-call

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This commit is contained in:
Ulf Norell 2019-09-30 11:59:27 +02:00
parent bb1a45c557
commit 46a30b118f
1 changed files with 2 additions and 2 deletions
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4
src/aeso_fcode_to_fate.erl
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@ -1582,6 +1582,7 @@ tweak_returns(['RETURN', {'PUSH', A} | Code]) -> [{'RETURNR', A} | Code
tweak_returns(['RETURN' | Code = [{'CALL_T', _} | _]]) -> Code;
tweak_returns(['RETURN' | Code = [{'ABORT', _} | _]]) -> Code;
tweak_returns(['RETURN' | Code = [{'EXIT', _} | _]]) -> Code;
tweak_returns(['RETURN' | Code = [loop | _]]) -> Code;
tweak_returns(Code) -> Code.
%% -- Split basic blocks at CALL instructions --
@ -1595,8 +1596,7 @@ split_calls(Ref, [], Acc, Blocks) ->
split_calls(Ref, [I | Code], Acc, Blocks) when element(1, I) == 'CALL';
element(1, I) == 'CALL_R';
element(1, I) == 'CALL_GR';
element(1, I) == 'jumpif';
I == loop ->
element(1, I) == 'jumpif' ->
split_calls(make_ref(), Code, [], [{Ref, lists:reverse([I | Acc])} | Blocks]);
split_calls(Ref, [{'ABORT', _} = I | _Code], Acc, Blocks) ->
lists:reverse([{Ref, lists:reverse([I | Acc])} | Blocks]);