mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-23 09:05:31 +00:00
Code Activity

FPA: added rewriting and fpa2bv conversion rules for new operations.

Browse source 
Signed-off-by: Christoph M. Wintersteiger <cwinter@microsoft.com>
This commit is contained in:
Christoph M. Wintersteiger 2013-06-07 18:03:46 +01:00
parent 123d3ec3a7
commit d7639557d2
5 changed files with 57 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

33
src/ast/rewriter/float_rewriter.cpp
View file

@ -58,6 +58,9 @@ br_status float_rewriter::mk_app_core(func_decl * f, unsigned num_args, expr * c
case OP_FLOAT_IS_ZERO: SASSERT(num_args == 1); st = mk_is_zero(args[0], result); break;
case OP_FLOAT_IS_NZERO: SASSERT(num_args == 1); st = mk_is_nzero(args[0], result); break;
case OP_FLOAT_IS_PZERO: SASSERT(num_args == 1); st = mk_is_pzero(args[0], result); break;
case OP_FLOAT_IS_INF: SASSERT(num_args == 1); st = mk_is_inf(args[0], result); break;
case OP_FLOAT_IS_NORMAL: SASSERT(num_args == 1); st = mk_is_normal(args[0], result); break;
case OP_FLOAT_IS_SUBNORMAL: SASSERT(num_args == 1); st = mk_is_subnormal(args[0], result); break;
case OP_FLOAT_IS_SIGN_MINUS: SASSERT(num_args == 1); st = mk_is_sign_minus(args[0], result); break;
case OP_TO_IEEE_BV: SASSERT(num_args == 1); st = mk_to_ieee_bv(args[0], result); break;
}
@ -428,6 +431,36 @@ br_status float_rewriter::mk_is_pzero(expr * arg1, expr_ref & result) {
return BR_FAILED;
}
br_status float_rewriter::mk_is_inf(expr * arg1, expr_ref & result) {
scoped_mpf v(m_util.fm());
if (m_util.is_value(arg1, v)) {
result = (m_util.fm().is_inf(v)) ? m().mk_true() : m().mk_false();
return BR_DONE;
}
return BR_FAILED;
}
br_status float_rewriter::mk_is_normal(expr * arg1, expr_ref & result) {
scoped_mpf v(m_util.fm());
if (m_util.is_value(arg1, v)) {
result = (m_util.fm().is_normal(v)) ? m().mk_true() : m().mk_false();
return BR_DONE;
}
return BR_FAILED;
}
br_status float_rewriter::mk_is_subnormal(expr * arg1, expr_ref & result) {
scoped_mpf v(m_util.fm());
if (m_util.is_value(arg1, v)) {
result = (m_util.fm().is_denormal(v)) ? m().mk_true() : m().mk_false();
return BR_DONE;
}
return BR_FAILED;
}
br_status float_rewriter::mk_is_sign_minus(expr * arg1, expr_ref & result) {
scoped_mpf v(m_util.fm());
if (m_util.is_value(arg1, v)) {

3
src/ast/rewriter/float_rewriter.h
View file

@ -66,6 +66,9 @@ public:
br_status mk_is_zero(expr * arg1, expr_ref & result);
br_status mk_is_nzero(expr * arg1, expr_ref & result);
br_status mk_is_pzero(expr * arg1, expr_ref & result);
br_status mk_is_inf(expr * arg1, expr_ref & result);
br_status mk_is_normal(expr * arg1, expr_ref & result);
br_status mk_is_subnormal(expr * arg1, expr_ref & result);
br_status mk_is_sign_minus(expr * arg1, expr_ref & result);
br_status mk_to_ieee_bv(expr * arg1, expr_ref & result);