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rewriter and value recognition bugfixes for floats

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Signed-off-by: Christoph M. Wintersteiger <cwinter@microsoft.com>
This commit is contained in:
Christoph M. Wintersteiger 2013-10-08 20:01:39 +01:00
parent 3d910028bf
commit 9a9f8bbb34
2 changed files with 23 additions and 2 deletions
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21
src/ast/float_decl_plugin.cpp
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@ -85,6 +85,24 @@ bool float_decl_plugin::is_value(expr * n, mpf & val) {
m_fm.set(val, m_values[to_app(n)->get_decl()->get_parameter(0).get_ext_id()]);
return true;
}
else if (is_app_of(n, m_family_id, OP_FLOAT_MINUS_INF)) {
unsigned ebits = to_app(n)->get_decl()->get_range()->get_parameter(0).get_int();
unsigned sbits = to_app(n)->get_decl()->get_range()->get_parameter(1).get_int();
m_fm.mk_ninf(ebits, sbits, val);
return true;
}
else if (is_app_of(n, m_family_id, OP_FLOAT_PLUS_INF)) {
unsigned ebits = to_app(n)->get_decl()->get_range()->get_parameter(0).get_int();
unsigned sbits = to_app(n)->get_decl()->get_range()->get_parameter(1).get_int();
m_fm.mk_pinf(ebits, sbits, val);
return true;
}
else if (is_app_of(n, m_family_id, OP_FLOAT_NAN)) {
unsigned ebits = to_app(n)->get_decl()->get_range()->get_parameter(0).get_int();
unsigned sbits = to_app(n)->get_decl()->get_range()->get_parameter(1).get_int();
m_fm.mk_nan(ebits, sbits, val);
return true;
}
return false;
}
@ -523,6 +541,9 @@ bool float_decl_plugin::is_value(app * e) const {
case OP_RM_TOWARD_NEGATIVE:
case OP_RM_TOWARD_ZERO:
case OP_FLOAT_VALUE:
case OP_FLOAT_PLUS_INF:
case OP_FLOAT_MINUS_INF:
case OP_FLOAT_NAN:
return true;
case OP_TO_FLOAT:
return m_manager->is_value(e->get_arg(0));