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Estimated hours taken: 1.5 Branches: main, release compiler/stack_opt.m: Run a simplication pass on procedures before doing liveness computation. This avoids the compiler throwing an exception for the test case below. tests/valid/stack_opt_simplify.m: tests/valid/Mmakefile: Add a test case.
23 lines
725 B
Mathematica
23 lines
725 B
Mathematica
% Regression test. `stack_opt_cell' used to call `detect_liveness_proc'
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% without doing a simplification on the procedure beforehand:
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%
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% % mmc --optimize-saved-vars -C stack_opt_simplify.m
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% stack_opt_simplify.m:023: In `bar':
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% stack_opt_simplify.m:023: warning: determinism declaration could be tighter.
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% stack_opt_simplify.m:023: Declared `semidet', inferred `erroneous'.
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% Uncaught Mercury exception:
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% Software Error: goal_info_get_post_births: no code_gen_info
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:- module stack_opt_simplify.
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:- interface.
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:- pred foo is det.
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:- implementation.
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:- import_module require.
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foo :- ( bar -> true ; true ).
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% If declared as `is erroneous' then the abort doesn't occur.
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:- pred bar is semidet.
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bar :- error("bar").
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