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/*
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* Copyright (c) 2009 - 2013 Monoidics ltd.
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* Copyright (c) 2013 - present Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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// builtins to be used to model library functions
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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// model returning an arbitrary (nondeterministic) short
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short __infer_nondet_short();
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// model returning an arbitrary (nondeterministic) int
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int __infer_nondet_int();
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// model returning an arbitrary (nondeterministic) long int
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long int __infer_nondet_long_int();
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// model returning an arbitrary (nondeterministic) long long int
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long long int __infer_nondet_long_long_int();
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// model returning an arbitrary (nondeterministic) unsigned long int
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unsigned long int __infer_nondet_unsigned_long_int();
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// model returning an arbitrary (nondeterministic) pointer
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void* __infer_nondet_ptr();
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// model returning an arbitrary (nondeterministic) float
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float __infer_nondet_float();
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// model returning an arbitrary (nondeterministic) double
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double __infer_nondet_double();
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// model returning an arbitrary (nondeterministic) long double
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long double __infer_nondet_long_double();
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// model returning an arbitrary (nondeterministic) size_t
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size_t __infer_nondet_size_t();
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// model returning an arbitrary (nondeterministic) time_t
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time_t __infer_nondet_time_t();
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// model returning an arbitrary (nondeterministic) clock_t
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clock_t __infer_nondet_clock_t();
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// assume that the cond is false
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// and add any constraints to the precondition so that cond is false, if
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// possible
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#define INFER_EXCLUDE_CONDITION(cond) \
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if (cond) \
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while (1)
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// builtin: force arr to be an array
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extern void __require_allocated_array(const void* arr);
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// builtin: return the size of arr
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Optimize normalization, substitution, renaming of array types
Summary:
Array types where the length is not statically known were represented
using fresh variables. This diff:
- Makes array type length optional, reducing the amount of work needed
for renaming, substitution, and normalization.
- Revises uses of array length so that the length component of a
Tarray type represents only the statically determined constant
length of an array type, and the length component of a Sizeof
expression represents the dynamically determined length of an array
value.
- Restricts the type of static lengths from a general expression
(Sil.exp) to an integer (Sil.Int.t), enforcing that static types are
constant. This in particular ensures that types contain no
variables, and so are invariant under operations such as renaming
and substitution.
- Removes the type substitution and renaming functions typ_sub,
typ_normalize, and typ_captured_ren. Now that array type lengths
are constant integers, all of these functions are the identity.
Reviewed By: cristianoc
Differential Revision: D3387343
fbshipit-source-id: b5db768
9 years ago
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extern size_t __get_array_length(const void* arr);
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// builtin: change the attribute of ret to a file attribute
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extern void __set_file_attribute(void* ret);
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// builtin: change the size of the array to size
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Optimize normalization, substitution, renaming of array types
Summary:
Array types where the length is not statically known were represented
using fresh variables. This diff:
- Makes array type length optional, reducing the amount of work needed
for renaming, substitution, and normalization.
- Revises uses of array length so that the length component of a
Tarray type represents only the statically determined constant
length of an array type, and the length component of a Sizeof
expression represents the dynamically determined length of an array
value.
- Restricts the type of static lengths from a general expression
(Sil.exp) to an integer (Sil.Int.t), enforcing that static types are
constant. This in particular ensures that types contain no
variables, and so are invariant under operations such as renaming
and substitution.
- Removes the type substitution and renaming functions typ_sub,
typ_normalize, and typ_captured_ren. Now that array type lengths
are constant integers, all of these functions are the identity.
Reviewed By: cristianoc
Differential Revision: D3387343
fbshipit-source-id: b5db768
9 years ago
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extern void __set_array_length(void* ptr, size_t size);
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// builtin: set the flag to the given value for the procedure where this call
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// appears
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extern void __infer_set_flag(char* flag, char* value);
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