Files
mercury/tests/debugger/user_event_shallow.m
Zoltan Somogyi aed31c7eda Fix several test case failures.
tests/debugger/user_event_shallow.{m,exp}:
    Mark a predicate with no_inline to prevent -O5 from optimizing
    away an event that the .inp of this case depends on.

tests/invalid/Mmakefile:
    Make the test cases in this directory work even if code generation
    requires reading in the module's own .int file.

tests/invalid/bad_item_in_interface.err_exp2:
    Add an expected output file for grades that do not support memoisation.

tests/invalid/bad_item_in_interface.m:
    Document the reason for the existence of the .err_exp2 file.

tests/options_file/Mmakefile:
    Make the test cases in this directory work even if code generation
    requires reading in the module's own .int file.

    Conform to the changes below.

compiler/options.m:
doc/user_guide.texi:
    Make the --dump-options-file file take an argument that specifies
    the file to which the contents of the options file should be dumped.

compiler/mercury_compile_main.m:
compiler/options_file.m:
    Dump the options file to the specified file, if the filename is not "".
2021-07-30 01:43:59 +10:00

107 lines
2.2 KiB
Mathematica

%---------------------------------------------------------------------------%
% vim: ts=4 sw=4 et ft=mercury
%---------------------------------------------------------------------------%
:- module user_event_shallow.
:- interface.
:- import_module io.
:- pred main(io::di, io::uo) is cc_multi.
:- implementation.
:- import_module list.
:- import_module int.
:- type listint == list(int).
main(!IO) :-
data(Data),
( if queen(Data, Out) then
print_list(Out, !IO)
else
io.write_string("No solution\n", !IO)
).
:- pred data(list(int)::out) is det.
data([1, 2, 3, 4, 5]).
:- pred queen(list(int)::in, list(int)::out) is nondet.
queen(Data, Out) :-
qperm(Data, Out),
event safe_test(Out),
safe(Out).
:- pred qperm(list(T)::in, list(T)::out) is nondet.
:- pragma no_inline(pred(qperm/2)).
% This should prevent the elimination of the safe_test event in our caller
% at high optimization levels.
qperm([], []).
qperm(L, K) :-
L = [_ | _],
qdelete(U, L, Z),
K = [U | V],
qperm(Z, V).
:- pred qdelete(T::out, list(T)::in, list(T)::out) is nondet.
qdelete(A, [A | L], L).
qdelete(X, [A | Z], [A | R]) :-
qdelete(X, Z, R).
:- pred safe(list(int)::in) is semidet.
safe([]).
safe([N | L]) :-
nodiag(N, 1, L),
safe(L).
:- pred nodiag(int::in, int::in, list(int)::in) is semidet.
nodiag(_, _, []).
nodiag(B, D, [N | L]) :-
NmB = N - B,
BmN = B - N,
( if D = NmB then
event nodiag_fail("N - B", B, N, [N | L]),
fail
else if D = BmN then
event nodiag_fail("B - N", B, N, [N | L]),
fail
else
true
),
D1 = D + 1,
nodiag(B, D1, L).
:- pred print_list(list(int)::in, io::di, io::uo) is det.
print_list(Xs, !IO) :-
(
Xs = [],
io.write_string("[]\n", !IO)
;
Xs = [_ | _],
io.write_string("[", !IO),
print_list_2(Xs, !IO),
io.write_string("]\n", !IO)
).
:- pred print_list_2(list(int)::in, io::di, io::uo) is det.
print_list_2([], !IO).
print_list_2([X | Xs], !IO) :-
io.write_int(X, !IO),
(
Xs = []
;
Xs = [_ | _],
io.write_string(", ", !IO),
print_list_2(Xs, !IO)
).