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33eb3028f5
tests/accumulator/*.m:
tests/analysis_*/*.m:
tests/benchmarks*/*.m:
tests/debugger*/*.{m,exp,inp}:
tests/declarative_debugger*/*.{m,exp,inp}:
tests/dppd*/*.m:
tests/exceptions*/*.m:
tests/general*/*.m:
tests/grade_subdirs*/*.m:
tests/hard_coded*/*.m:
Make these tests use four-space indentation, and ensure that
each module is imported on its own line. (I intend to use the latter
to figure out which subdirectories' tests can be executed in parallel.)
These changes usually move code to different lines. For the debugger tests,
specify the new line numbers in .inp files and expect them in .exp files.
47 lines
1.5 KiB
Mathematica
47 lines
1.5 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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% This is a regression test for a bug reported by Ian on 14 Nov 2006.
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% The bug manifests itself only if all three of --optimize-dups,
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% --optimize-frames and --optimize-peep are turned on, as they are
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% at the default optimization level. The bug was actually in peephole
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% optimization; the other two optimizations just created the circumstances
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% that tickled the bug. The bug is shown in this diff, created using
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% --debug-opt:
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%
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% - mkframe(pred opt_dup_bug.t/2-0, 0, no, do_fail)
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% + mkframe(pred opt_dup_bug.t/2-0, 0, no, local_8)
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% late setup
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% local_14:
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% - redoip_slot(maxfr) := code_addr_const(opt_dup_bug_t_2_0_i8)
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% - hijack redoip to effect resume point
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%
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% The transformation is correct for code that enters the code above at the top,
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% but for code that enters by jumping to local_14, it changes the semantics of
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% the program, yielding an infinite loop.
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:- module opt_dup_bug.
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:- interface.
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:- import_module io.
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:- pred main(io::di, io::uo) is det.
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:- implementation.
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:- import_module solutions.
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main(!IO) :-
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solutions(t("2"), Solutions),
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io.write_list(Solutions, "\n", io.write, !IO),
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io.nl(!IO).
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:- pred t(string, string).
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:- mode t(in, out) is nondet.
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t("2", "a").
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t("2", "b").
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t("2", "c").
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t("3", "b").
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t("3", "c").
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t("4", "c").
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