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Remove unnecessary ISALIST test from sparc versions of freebl DSOs.

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Bug 302658. r=jullien.pierre,wtchang
This commit is contained in:
nelsonb%netscape.com 2006-01-22 08:43:57 +00:00
parent 186da35074
commit 6f9d05f035
1 changed files with 8 additions and 112 deletions
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120
security/nss/lib/freebl/mpi/mpi_sparc.c
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@ -33,7 +33,7 @@
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/* $Id: mpi_sparc.c,v 1.6 2004/04/27 23:04:36 gerv%gerv.net Exp $ */
/* $Id: mpi_sparc.c,v 1.7 2006/01/22 08:43:57 nelsonb%netscape.com Exp $ */
/* Multiplication performance enhancements for sparc v8+vis CPUs. */
@ -177,11 +177,11 @@ v8_mpv_mul_d_add_prop(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
#endif
}
/* vis versions of these functions run only on v8+vis or v9+vis CPUs. */
/* These functions run only on v8plus+vis or v9+vis CPUs. */
/* c = a * b */
static void
vis_mpv_mul_d(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
void
s_mpv_mul_d(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
{
mp_digit d;
mp_digit x[258];
@ -204,8 +204,8 @@ vis_mpv_mul_d(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
}
/* c += a * b, where a is a_len words long. */
static void
vis_mpv_mul_d_add(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
void
s_mpv_mul_d_add(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
{
mp_digit d;
mp_digit x[258];
@ -227,9 +227,8 @@ vis_mpv_mul_d_add(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
}
/* c += a * b, where a is y words long. */
static void
vis_mpv_mul_d_add_prop(const mp_digit *a, mp_size a_len, mp_digit b,
mp_digit *c)
void
s_mpv_mul_d_add_prop(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
{
mp_digit d;
mp_digit x[258];
@ -256,106 +255,3 @@ vis_mpv_mul_d_add_prop(const mp_digit *a, mp_size a_len, mp_digit b,
v8_mpv_mul_d_add_prop(a, a_len, b, c);
}
}
#if defined(SOLARIS2_5)
static int
isSparcV8PlusVis(void)
{
long buflen;
int rv = 0; /* false */
char buf[256];
buflen = sysinfo(SI_MACHINE, buf, sizeof buf);
if (buflen > 0) {
rv = (!strcmp(buf, "sun4u") || !strcmp(buf, "sun4u1"));
}
return rv;
}
#else /* SunOS2.6or higher has SI_ISALIST */
static int
isSparcV8PlusVis(void)
{
long buflen;
int rv = 0; /* false */
char buf[256];
buflen = sysinfo(SI_ISALIST, buf, sizeof buf);
if (buflen > 0) {
#if defined(MP_USE_LONG_DIGIT)
char * found = strstr(buf, "sparcv9+vis");
#else
char * found = strstr(buf, "sparcv8plus+vis");
#endif
rv = (found != 0);
}
return rv;
}
#endif
typedef void MPVmpy(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c);
/* forward static function declarations */
static MPVmpy sp_mpv_mul_d;
static MPVmpy sp_mpv_mul_d_add;
static MPVmpy sp_mpv_mul_d_add_prop;
static MPVmpy *p_mpv_mul_d = &sp_mpv_mul_d;
static MPVmpy *p_mpv_mul_d_add = &sp_mpv_mul_d_add;
static MPVmpy *p_mpv_mul_d_add_prop = &sp_mpv_mul_d_add_prop;
static void
initPtrs(void)
{
if (isSparcV8PlusVis()) {
p_mpv_mul_d = &vis_mpv_mul_d;
p_mpv_mul_d_add = &vis_mpv_mul_d_add;
p_mpv_mul_d_add_prop = &vis_mpv_mul_d_add_prop;
} else {
p_mpv_mul_d = &v8_mpv_mul_d;
p_mpv_mul_d_add = &v8_mpv_mul_d_add;
p_mpv_mul_d_add_prop = &v8_mpv_mul_d_add_prop;
}
}
static void
sp_mpv_mul_d(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
{
initPtrs();
(* p_mpv_mul_d)(a, a_len, b, c);
}
static void
sp_mpv_mul_d_add(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
{
initPtrs();
(* p_mpv_mul_d_add)(a, a_len, b, c);
}
static void
sp_mpv_mul_d_add_prop(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
{
initPtrs();
(* p_mpv_mul_d_add_prop)(a, a_len, b, c);
}
/* This is the external interface */
void
s_mpv_mul_d(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
{
(* p_mpv_mul_d)(a, a_len, b, c);
}
void
s_mpv_mul_d_add(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
{
(* p_mpv_mul_d_add)(a, a_len, b, c);
}
void
s_mpv_mul_d_add_prop(const mp_digit *a, mp_size a_len, mp_digit b, mp_digit *c)
{
(* p_mpv_mul_d_add_prop)(a, a_len, b, c);
}