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ecb5e4a9e6
tests/declarative_debugger/*.m:
tests/exceptions/*.m:
tests/general/*.m:
tests/grade_subdirs/*.m:
tests/purity/*.m:
tests/submodules/*.m:
tests/typeclasses/*.m:
Update programming style.
tests/declarative_debugger/*.inp:
Update line numbers in breakpoint commands.
tests/declarative_debugger/*.exp:
Update expected line numbers.
tests/exceptions/Mercury.options:
tests/general/Mercury.options:
Disable some warnings that are irrelevant to the test.
52 lines
1.2 KiB
Mathematica
52 lines
1.2 KiB
Mathematica
%---------------------------------------------------------------------------%
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% vim: ts=4 sw=4 et ft=mercury
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%---------------------------------------------------------------------------%
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%
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% The Mercury compiler of Monday November 25, 1996 (13:00) produced
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% incorrect code for this.
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%
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% Suspected liveness bug, basically the compiler picks the value of
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% the result variable (Num) up from the wrong register - containing
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% Test not NumLast as it should.
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%
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% The switch must be in the condition of the if-then-else, and the
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% test unification must follow it.
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:- module liveness2.
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:- interface.
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:- import_module bool.
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:- import_module int.
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:- import_module io.
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:- import_module std_util.
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:- pred main(io, io).
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:- mode main(di, uo) is det.
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:- pred gather(bool::in, int::in, int::in, int::out) is det.
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:- implementation.
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main(!IO) :-
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gather(yes, 0, 7, Num),
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( if Num = 0 then
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io.write_string("Num is correct: ", !IO)
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else
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io.write_string("Num is incorrect: ", !IO)
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),
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io.write_int(Num, !IO),
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io.nl(!IO).
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gather(P, NumLast, Test, Num) :-
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( if
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( P = yes, Test1 = 1, NumThis = 10
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; P = no, Test1 = 2, NumThis = 20
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),
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Test = Test1
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then
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Num = NumThis
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else
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Num = NumLast
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).
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