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Author SHA1 Message Date
Leonardo de Moura
46d6c41835 Fix bug in the type checker (when type checking terms with meta-variables). 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-22 19:12:19 -07:00
Leonardo de Moura
2f29ff70d7 Implement higher-order unification 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-18 20:46:00 -07:00
Leonardo de Moura
3df6149daa Add support for metavariables in the type checker. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-17 11:09:59 -07:00
Leonardo de Moura
30b19c314a Add basic support for metavariables at is_convertible. Swap is_convertible arguments to make it more intuitive. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-17 07:15:47 -07:00
Leonardo de Moura
a26c7d47f2 Add simplification to add_lift 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-17 03:14:02 -07:00
Leonardo de Moura
99e8d2feae Add simplification rule to add_inst 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-17 02:57:28 -07:00
Leonardo de Moura
21c7a45f67 Relax definition of identity_stack. Fix printer for metavariable contexts. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-17 02:09:45 -07:00
Leonardo de Moura
d3bce584f4 Add support for new metavariable representation in the normalizer. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-17 01:57:21 -07:00
Leonardo de Moura
99a163f11d Simplify metavariable context. Now, we have only 'lift' and 'inst' instead of 'subst', 'lift' and 'lower' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-16 19:32:28 -07:00
Leonardo de Moura
cad562a448 Add support for metavariables in the normalizer. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-16 19:32:28 -07:00
Leonardo de Moura
f79f046294 Add partial support for metavariables in the normalizer 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-15 21:23:50 -07:00
Leonardo de Moura
2800292947 Add timestamp to metavar_env 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-15 19:50:48 -07:00
Leonardo de Moura
5a4bc331d2 Make unification_problems a virtual class. Associate a 'standard' context with each metavariable in metavar_env 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-15 19:38:36 -07:00
Leonardo de Moura
63e102055e Move metavariables to the kernel. This is the first step for implementing the new elaborator. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-15 12:09:01 -07:00
Soonho Kong
bc60b47295 Apply coding style 2013-09-13 18:48:09 -07:00
Leonardo de Moura
8c735f1daa Use consistent coding style for spaces after ',' 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-13 12:49:03 -07:00
Leonardo de Moura
573ec5ccc2 Rename import_all. The idea is to use consistent name for library files. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-13 09:06:46 -07:00
Leonardo de Moura
070c87bef0 Rename arith library files 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-13 08:55:09 -07:00
Leonardo de Moura
26097475fd Use fullpath in #include directives. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-12 20:04:10 -07:00
Soonho Kong
3505ed8adb Use suppressions file to ignore certain valgrind warnings 2013-09-10 15:37:09 -07:00
Leonardo de Moura
6fe86ffefd Fix initialized memory error reported by Valgrind. Disable 2 tests that produce memory leaks due to a bug in g++. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-10 13:51:02 -07:00
Leonardo de Moura
33c4b44b2b Encapsulate context implementation. The current implementantion based on lists may be a performance problem in the future, and we should be able to change it without affecting the whole code base. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-07 11:15:11 -07:00
Leonardo de Moura
c674bb3790 Add castlib as an independent library 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-06 23:40:47 -07:00
Leonardo de Moura
7a9d53d0d7 Refactor arith libraries 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-06 23:19:47 -07:00
Leonardo de Moura
2459c4ae7c Add (optional) type to let declarations 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-06 10:06:26 -07:00
Leonardo de Moura
e955c054ca Modify type checker. Now, it only accepts builtin values that have been declared in the environment. The idea is to be able to track which classes of builtin values have been used in a given environment. We want to be able to quantify the size of the trusted code base for a particular development. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-04 08:30:04 -07:00
Leonardo de Moura
9f64e2b14b Fix another cdash warning 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-04 04:43:55 -07:00
Leonardo de Moura
6f3fa63ccb Add missing test 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-03 14:51:34 -07:00
Leonardo de Moura
b483d0dc45 Replace Int::sub and Real::sub with definitions 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-02 16:31:30 -07:00
Leonardo de Moura
db88920f81 Rename normalize and type_check to normalizer and type_checker (using a consistent naming convention) 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-09-02 08:43:38 -07:00
Leonardo de Moura
682df7699d Fix is_convertible propositions => type 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-30 01:24:06 -07:00
Leonardo de Moura
01e4b4b7fe Add postprocessor functional object to the replace_fn template. Add unit-test that demonstrates how to build a replacer that builds a trace. The trace associates new expressions with the old ones that were used to create it. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-28 10:47:19 -07:00
Leonardo de Moura
670dc5ad55 Add option to control maximum recursion depth in the expression normalizer 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>

Conflicts:
	src/tests/kernel/normalize.cpp
 2013-08-23 09:42:49 -07:00
Leonardo de Moura
0ffa76aa5e Fix unused variable warnings 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-21 17:02:09 -07:00
Leonardo de Moura
d82c60a314 Add test normalizer interrupt 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-20 20:16:02 -07:00
Leonardo de Moura
88cc3dc20d Add interrupt to normalizer. Fix tests (they were not using the basic printer). 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-19 20:05:56 -07:00
Leonardo de Moura
b964edfb3e Add interrupt method to type checker. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-19 20:05:56 -07:00
Leonardo de Moura
676ebcca3d Add parse_arrow 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-18 15:44:39 -07:00
Leonardo de Moura
a6f36ba546 Improve formatter usage. Fix bug in object printer. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-17 11:29:43 -07:00
Leonardo de Moura
0fbfef8eb0 Remove sanitize_names from kernel 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-16 20:40:39 -07:00
Leonardo de Moura
111cdd4e62 Remove pretty printer from kernel. Add basic printing capability to exprlib module. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-16 20:40:39 -07:00
Leonardo de Moura
519a290f32 Refactor kernel objects 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-16 20:40:39 -07:00
Leonardo de Moura
c41b3dc4d8 Add kernel_exceptions. The idea is to avoid expression formatting in the kernel. It also allows different frontends to display the error messages is a different way. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-16 12:51:12 -07:00
Leonardo de Moura
790d4a4447 Move pretty printer to frontend. Add support for mixfix pretty printing 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-15 19:02:28 -07:00
Leonardo de Moura
e9106f7512 Delete obsolete function continue_on_violation 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-15 19:02:28 -07:00
Leonardo de Moura
99219f998b Rename files sets.h and maps.h to expr_sets.h and expr_maps.h 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-15 19:02:28 -07:00
Leonardo de Moura
013fa866fa Add iterator for traversing local objects (i.e., ignores objects defined in ancestor environments) 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-15 19:02:28 -07:00
Leonardo de Moura
2d74ff5fe0 Cache results of the normalizer. Add example that demonstrates the exponential performance improvement. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-14 23:18:50 -07:00
Leonardo de Moura
984c4149fa Add helper functions for creating Let expressions. Add simple type checking test for Let expressions. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-14 22:30:12 -07:00
Leonardo de Moura
285c8dafdc Display context_entry body when pretty printing contexts. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-14 18:17:18 -07:00
Leonardo de Moura
d71c36ed60 Improve sanitizer test 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-14 18:17:18 -07:00
Leonardo de Moura
23d245bb2e Sanitize context names before generating error messages. Add [[ noreturn ]] attribute to functions that always throw exceptions. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-14 18:17:18 -07:00
Leonardo de Moura
a6f0a69186 Avoid head and tail when manipulating contexts 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-14 18:17:18 -07:00
Leonardo de Moura
56305e4672 Add sanitize_names for (local) contexts 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-14 18:17:17 -07:00
Leonardo de Moura
338ce88ea0 Add occurs function 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-14 18:17:17 -07:00
Soonho Kong
5a38480cf7 Remove "continue_on_violation(true);" from tests 2013-08-14 13:24:18 -07:00
Leonardo de Moura
2dad1e0e33 Fix type mismatch error message 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-13 19:24:11 -07:00
Leonardo de Moura
392b347f53 Add expr_formatter and expr_locator. Add better error messages. Improve simple printer. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-13 19:16:40 -07:00
Leonardo de Moura
11a9cac5d6 Refactor kernel objects 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-13 15:13:54 -07:00
Soonho Kong
916e348dec Disable thread-related tests on OSX due to the bug on gcc-4.8.1 2013-08-12 14:58:18 -07:00
Leonardo de Moura
4eeb72b0ee Fix performance problem in has_free_var. Add new test at src/tests/kernel/free_vars.cpp that exposes the problem. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-11 11:19:59 -07:00
Leonardo de Moura
6d9a342f17 Add regression test to expose bug fixed in previous commit. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-10 22:14:27 -07:00
Leonardo de Moura
5c6ee647a9 Fix bug in has_free_vars_fn. Add optimization to type_checker. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-10 22:05:04 -07:00
Leonardo de Moura
7ebaac62a8 Add scoped_map. Cache type checker results. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-10 19:27:56 -07:00
Leonardo de Moura
9fbe99bf58 Rename define_uv -> add_uvar 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-10 14:21:13 -07:00
Leonardo de Moura
ecf9506abe Add object iterator for environment objects 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-08 18:38:18 -07:00
Leonardo de Moura
2670e94398 Add pretty printer for Lean environment 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-07 19:10:12 -07:00
Leonardo de Moura
5acedcddbb Remove useless is_* functions. We can use equality for that (more readable and similar performance). 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-07 08:34:50 -07:00
Leonardo de Moura
84f4a32c0e Change name convention for creating Lean expressions 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-06 11:27:14 -07:00
Leonardo de Moura
30513398bb Add basic definitions and axioms 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-05 20:06:42 -07:00
Leonardo de Moura
8aee11e538 Fix test failure when using clang++ and release mode 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-05 20:06:42 -07:00
Leonardo de Moura
f6057e2b28 Add more environment tests 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-05 20:06:42 -07:00
Leonardo de Moura
0c610e0a77 Fix bug in type checker 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-05 20:06:42 -07:00
Leonardo de Moura
70de591934 Add definitions and facts 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-04 20:52:14 -07:00
Leonardo de Moura
5f77a2367f Allow Boolean expressions (aka propositions) to be used as types. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-04 18:26:01 -07:00
Leonardo de Moura
4b5d60f2b2 Add get_uvar method 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-04 17:47:54 -07:00
Leonardo de Moura
c97db1f0cf Add children environments 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-04 16:07:37 -07:00
Leonardo de Moura
95447deea3 Add normalization a = b for values (aka semantic attachments) 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-04 14:54:33 -07:00
Leonardo de Moura
f0ccb2a03e Rename eqp --> is_eqp. The name is too similar to heterogeneous equality constructor eq. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-04 09:41:49 -07:00
Leonardo de Moura
3f789ce2b7 Add let and heterogeneous equality. Add bool_type and bool_value. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-04 09:37:52 -07:00
Leonardo de Moura
b979436c40 Add basic semantic attachments for arithmetic 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-03 19:57:06 -07:00
Leonardo de Moura
0a679074f0 Add support for semantic attachments. Remove expr_numeral 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-03 16:12:15 -07:00
Leonardo de Moura
cce469119f Flip order of the arguments for instance and abstract. Simplify type_checker. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-03 16:12:15 -07:00
Leonardo de Moura
190855ad1b Add (relaxed) version of instantiate that can substitute terms containing free variables 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-03 16:12:15 -07:00
Leonardo de Moura
2972bdfec3 Rename abst_type to abst_domain 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-03 16:12:12 -07:00
Leonardo de Moura
e1e3e6b2d6 Add instantiate tests 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-03 16:10:20 -07:00
Soonho Kong
cda969187a Add one small test to expr 2013-08-02 10:34:46 -07:00
Leonardo de Moura
3ef9d21875 Fix bugs in type checker 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-01 21:40:39 -07:00
Leonardo de Moura
7b00561a94 Normalize level expressions 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-01 21:40:39 -07:00
Leonardo de Moura
e220d7c525 Add type checker. Fix normalization with non-empty context 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-01 21:40:36 -07:00
Leonardo de Moura
bed5f09907 Rename normalize context to local_context. Create context. Fix bug in name.cpp 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-08-01 21:39:02 -07:00
Soonho Kong
322c2b472d Add more to expr pretty-print 2013-08-01 18:54:06 -07:00
Soonho Kong
5a89bffe83 Add pp to expr 2013-08-01 15:42:06 -07:00
Leonardo de Moura
4efa9a92df Fix performance issue 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-29 21:33:43 -07:00
Leonardo de Moura
08b750c825 Remove Prop from kernel 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-29 19:49:34 -07:00
Leonardo de Moura
6452c69b96 Use level at kernel expressions 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-29 19:44:26 -07:00
Leonardo de Moura
537e2c101c Add more tests. Fix bug in universe implication test. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-29 19:05:43 -07:00
Leonardo de Moura
a4f456c99e Universe levels 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-28 22:34:39 -07:00
Leonardo de Moura
13bce7bb6f checkpoint 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-26 14:16:29 -07:00
Leonardo de Moura
ed13132c12 Add has_free_var, lower_free_vars 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-26 12:27:55 -07:00
Leonardo de Moura
bf0cca3805 Add multi-thread tests 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-25 22:33:13 -07:00
Leonardo de Moura
b6236130f9 Fix stack overflow at travis when using clang++ 3.3 in debug mode 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-25 22:05:09 -07:00
Leonardo de Moura
f7138b6ecf Fix normalize 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-25 19:13:45 -07:00
Leonardo de Moura
14c899e7ca Add normalize 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-24 19:36:54 -07:00
Leonardo de Moura
c2ebe42ca8 Move numerics and sexpr to util 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-24 14:57:51 -07:00
Leonardo de Moura
0fb93ad6ef Expose max_sharing_fn object 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-24 14:56:32 -07:00
Leonardo de Moura
59592ed36b Add deep copy for kernel expressions 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-24 14:56:32 -07:00
Leonardo de Moura
ceb6537e3a Fix race condition when updating expression flags: max_shared and closed 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-24 14:56:32 -07:00
Leonardo de Moura
9b3c47a521 Refactor instantiate/abstract code 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-24 14:56:32 -07:00
Leonardo de Moura
c7b12a2815 Add abstract/instantiate for kernel expressions 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-24 14:56:32 -07:00
Leonardo de Moura
ed6d6483fe Rename abst_expr -> abst_body 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-24 14:56:32 -07:00
Leonardo de Moura
9fd88e6e27 Add small demo 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-24 14:56:32 -07:00
Leonardo de Moura
576726bf58 Use operator() for creating applications 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-24 14:56:31 -07:00
Leonardo de Moura
54a02b4fc7 Simplify expr accessor names 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-24 14:56:31 -07:00
Leonardo de Moura
2c3fc09e3c Add has_free_vars/closed function 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-24 14:56:31 -07:00
Leonardo de Moura
6a2c9ef076 Rename/Reorg some kernel files 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-24 14:56:31 -07:00
Leonardo de Moura
90f498994a Add some overloads 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-24 14:56:31 -07:00
Leonardo de Moura
f00d8c4683 Fix bug in max_sharing 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-23 09:18:18 -07:00
Leonardo de Moura
79d00f4d78 Rename max_sharing files 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-23 09:01:54 -07:00
Leonardo de Moura
5aa25a635f Add max_shared flag to expr_cell. Improve app constructor. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-23 08:59:39 -07:00
Leonardo de Moura
2a9d0de57b Add max_shared: function for computing maximally shared expressions. 2013-07-22 19:31:27 -07:00
Leonardo de Moura
aed8a07c1b Add sexpr test 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-22 19:02:11 -07:00
Leonardo de Moura
e6a694ebcc Add expr test 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-22 17:58:35 -07:00
Leonardo de Moura
06320c8615 Replace expr == with recursive function. Add goodies for traversing expressions. 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-22 16:40:17 -07:00
Leonardo de Moura
c4cd6c4f84 Add tests for kernel expression 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2013-07-22 13:04:27 -07:00