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Eliminated the old MS-Bignum interface because it stood in the way of progress.

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Signed-off-by: Christoph M. Wintersteiger <cwinter@microsoft.com>
This commit is contained in:
Christoph M. Wintersteiger 2015-02-07 19:39:15 +00:00
parent da01f237fd
commit 7e579604e1
8 changed files with 95 additions and 183 deletions
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88
src/util/mpn.h
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@ -22,13 +22,15 @@ Revision History:
#include<ostream>
#include"util.h"
#include"buffer.h"
// we supply a definition of a basic max because mpz relies on it.
#define max(a,b) (((a) > (b)) ? (a) : (b))
#include"z3_omp.h"
typedef unsigned int mpn_digit;
class mpn_manager {
omp_nest_lock_t m_lock;
#define MPN_BEGIN_CRITICAL() omp_set_nest_lock(&const_cast<omp_nest_lock_t>(m_lock));
#define MPN_END_CRITICAL() omp_unset_nest_lock(&const_cast<omp_nest_lock_t>(m_lock));
public:
mpn_manager();
~mpn_manager();
@ -56,7 +58,6 @@ public:
char * to_string(mpn_digit const * a, size_t const lng,
char * buf, size_t const lbuf) const;
private:
#ifdef _AMD64_
class mpn_sbuffer : public sbuffer<mpn_digit> {
@ -112,85 +113,6 @@ private:
void trace(mpn_digit const * a, size_t const lnga) const;
void trace_nl(mpn_digit const * a, size_t const lnga) const;
public:
// This function is needed because of the static_mpn_manager global variable.
// It must be invoked by the memory_manager during finalization.
// After we remove MSBignum from the code base, the global variable will
// not be needed anymore, and we will be able to eliminate this function.
void finalize() {
u.finalize();
v.finalize();
t_ms.finalize();
t_ab.finalize();
}
};
// MSBignum compatible interface
// Note: The `owner' parameter is ignored. We use separate mpn_manager objects for the
// same purpose. Multiple owners are not supported in these compatibility functions,
// instead a static mpn_manager is used.
extern mpn_manager static_mpn_manager;
typedef unsigned int digit_t;
typedef struct {
mpn_digit multiplier;
size_t shiftamt;
} reciprocal_1_t;
#define reciprocal_1_NULL ((reciprocal_1_t*)0)
inline int compare_diff(digit_t const * a, size_t const lnga,
digit_t const * b, size_t const lngb)
{
return static_mpn_manager.compare(a, lnga, b, lngb);
}
inline char * mp_decimal(digit_t const * a, size_t const lng, // Number to be converted and its length
char * buf, size_t const lbuf, // output buffer and its length
int owner)
{
return static_mpn_manager.to_string(a, lng, buf, lbuf);
}
inline bool add_full(digit_t const * a, size_t const lnga,
digit_t const * b, size_t const lngb,
digit_t *c, size_t const lngc_alloc,
size_t * plngc,
int owner)
{
return static_mpn_manager.add(a, lnga, b, lngb, c, lngc_alloc, plngc);
}
inline bool sub_diff(digit_t const * a, size_t const lnga,
digit_t const * b, size_t const lngb,
digit_t * c, digit_t * pborrow,
int owner)
{
return static_mpn_manager.sub(a, lnga, b, lngb, c, pborrow);
}
inline bool multiply(digit_t const * a, size_t const lnga,
digit_t const * b, size_t const lngb,
digit_t * c,
int owner)
{
return static_mpn_manager.mul(a, lnga, b, lngb, c);
}
inline bool divide(digit_t const * numer, size_t const lnum,
digit_t const * denom, size_t const lden,
reciprocal_1_t const * supplied_reciprocal, /* reciprocal_t struct for this denominator,
or reciprocal_1_NULL
if not previously precomputed */
digit_t * quot, /* Quotient -- length MAX(lnum - lden + 1, 0) */
digit_t * rem, /* Remainder -- length lden */
int owner)
{
return static_mpn_manager.div(numer, lnum, denom, lden, quot, rem);
}
#endif