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d883fb772e
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Fix a bug in the following optimisation of model_non lambdas:
% Optimize a special case: replace
% `(pred(Y1, Y2, ...) is Detism :-
% p(X1, X2, ..., Y1, Y2, ...))'
% where `p' has determinism `Detism' with
% `p(X1, X2, ...)'
%
For the LLDS back-end the optimisation was also applied when `p' is model_det
but the lambda is model_non. However it was incorrectly applied for the
erlang grade as well.
compiler/lambda.m:
Don't apply the optimisation in the case above.
tests/hard_coded/Mmakefile:
tests/hard_coded/nondet_lambda.exp:
tests/hard_coded/nondet_lambda.m:
Add a test case.
24 lines
409 B
Mathematica
24 lines
409 B
Mathematica
:- module nondet_lambda.
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:- interface.
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:- import_module io.
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:- pred main(io::di, io::uo) is cc_multi.
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:- implementation.
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main(!IO) :-
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% The compiler was incorrectly simplifying this to `F = bar' in the erlang
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% grade.
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F = (pred(X::out) is nondet :- bar(X)),
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( F(Y) ->
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io__write(Y, !IO),
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io__write_string("\n", !IO)
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;
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true
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).
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:- pred bar(int).
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:- mode bar(out) is det.
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bar(42).
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