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rewrote rotmg.c instead of modifying very old code

tags/v0.2.9.rc2^2
wernsaar 11 years ago
parent
322a178430
commit
692b14cecd
1 changed files with 198 additions and 175 deletions
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  1. +198
    -175
      interface/rotmg.c

+ 198
- 175
interface/rotmg.c View File

@@ -1,3 +1,37 @@
/***************************************************************************
Copyright (c) 2013, The OpenBLAS Project
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
3. Neither the name of the OpenBLAS project nor the names of
its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/

/**************************************************************************************
* 2014/02/28 Saar
* Test with lapack-3.5.0 : OK
*
**************************************************************************************/


#include "common.h"
#ifdef FUNCTION_PROFILE
#include "functable.h"
@@ -7,6 +41,8 @@
#define GAMSQ 16777216.e0
#define RGAMSQ 5.9604645e-8

#define TWO 2.e0

#ifdef DOUBLE
#define ABS(x) fabs(x)
#else
@@ -25,181 +61,168 @@ void CNAME(FLOAT *dd1, FLOAT *dd2, FLOAT *dx1, FLOAT dy1, FLOAT *dparam){

#endif

FLOAT du, dp1, dp2, dq2, dq1, dh11, dh21, dh12, dh22;
int igo, flag;
FLOAT dtemp;

#ifndef CBLAS
PRINT_DEBUG_NAME;
#else
PRINT_DEBUG_CNAME;
#endif

dh11 = ZERO;
dh12 = ZERO;
dh21 = ZERO;
dh22 = ZERO;

if (*dd1 < ZERO) goto L60;

dp2 = *dd2 * dy1;

if (dp2 == ZERO) {
flag = -2;
goto L260;
}

dp1 = *dd1 * *dx1;
dq2 = dp2 * dy1;
dq1 = dp1 * *dx1;

if (! (ABS(dq1) > ABS(dq2))) goto L40;

dh21 = -(dy1) / *dx1;
dh12 = dp2 / dp1;

du = ONE - dh12 * dh21;

if (du <= ZERO) goto L60;

flag = 0;
*dd1 /= du;
*dd2 /= du;
*dx1 *= du;

goto L100;

L40:
if (dq2 < ZERO) goto L60;

flag = 1;
dh11 = dp1 / dp2;
dh22 = *dx1 / dy1;
du = ONE + dh11 * dh22;
dtemp = *dd2 / du;
*dd2 = *dd1 / du;
*dd1 = dtemp;
*dx1 = dy1 * du;
goto L100;

L60:
flag = -1;
dh11 = ZERO;
dh12 = ZERO;
dh21 = ZERO;
dh22 = ZERO;

*dd1 = ZERO;
*dd2 = ZERO;
*dx1 = ZERO;
goto L220;


L70:
if (flag < 0) goto L90;
if (flag > 0) goto L80;
dh11 = ONE;
dh22 = ONE;
flag = -1;
goto L90;

L80:
dh21 = -ONE;
dh12 = ONE;
flag = -1;

L90:
switch (igo) {
case 0: goto L120;
case 1: goto L150;
case 2: goto L180;
case 3: goto L210;
}

L100:
if (!(*dd1 <= RGAMSQ)) goto L130;
if (*dd1 == ZERO) goto L160;
igo = 0;
goto L70;

L120:
*dd1 *= GAM * GAM;
*dx1 /= GAM;
dh11 /= GAM;
dh12 /= GAM;
goto L100;

L130:
if (! (*dd1 >= GAMSQ)) {
goto L160;
}
igo = 1;
goto L70;

L150:
*dd1 /= GAM * GAM;
*dx1 *= GAM;
dh11 *= GAM;
dh12 *= GAM;
goto L130;

L160:
if (! (ABS(*dd2) <= RGAMSQ)) {
goto L190;
}
if (*dd2 == ZERO) {
goto L220;
}
igo = 2;
goto L70;

L180:
/* Computing 2nd power */
*dd2 *= GAM * GAM;
dh21 /= GAM;
dh22 /= GAM;
goto L160;

L190:
if (! (ABS(*dd2) >= GAMSQ)) {
goto L220;
}
igo = 3;
goto L70;

L210:
/* Computing 2nd power */
*dd2 /= GAM * GAM;
dh21 *= GAM;
dh22 *= GAM;
goto L190;

L220:
if (flag < 0) {
goto L250;
} else if (flag == 0) {
goto L230;
} else {
goto L240;
}
L230:
dparam[2] = dh21;
dparam[3] = dh12;
goto L260;
L240:
dparam[2] = dh11;
dparam[4] = dh22;
goto L260;
L250:
dparam[1] = dh11;
dparam[2] = dh21;
dparam[3] = dh12;
dparam[4] = dh22;
L260:
dparam[0] = (FLOAT) flag;
return;
FLOAT du, dp1, dp2, dq2, dq1, dh11, dh21, dh12, dh22, dflag, dtemp;

if(*dd1 < ZERO)
{
dflag = -ONE;
dh11 = ZERO;
dh12 = ZERO;
dh21 = ZERO;
dh22 = ZERO;

*dd1 = ZERO;
*dd2 = ZERO;
*dx1 = ZERO;
}
else
{
dp2 = *dd2 * dy1;
if(dp2 == ZERO)
{
dflag = -TWO;
dparam[0] = dflag;
return;
}
dp1 = *dd1 * *dx1;
dq2 = dp2 * dy1;
dq1 = dp1 * *dx1;
if(ABS(dq1) > ABS(dq2))
{
dh21 = - dy1 / *dx1;
dh12 = dp2 / dp1;

du = ONE - dh12 * dh21;
if(du > ZERO)
{
dflag = ZERO;
*dd1 = *dd1 / du;
*dd2 = *dd2 / du;
*dx1 = *dx1 * du;

}
}
else
{
if(dq2 < ZERO)
{
dflag = -ONE;
dh11 = ZERO;
dh12 = ZERO;
dh21 = ZERO;
dh22 = ZERO;

*dd1 = ZERO;
*dd2 = ZERO;
*dx1 = ZERO;
}
else
{
dflag = ONE;

dh11 = dp1 / dp2;
dh22 = *dx1 / dy1;
du = ONE + dh11 * dh22;
dtemp = *dd2 / du;

*dd2 = *dd1 / du;
*dd1 = dtemp;
*dx1 = dy1 * du;
}
}


if(*dd1 != ZERO)
{
while( (*dd1 <= RGAMSQ) || (*dd1 >= GAMSQ) )
{
if(dflag == ZERO)
{
dh11 = ONE;
dh22 = ONE;
dflag = -ONE;
}
else
{
dh21 = -ONE;
dh12 = ONE;
dflag = -ONE;
}
if( *dd1 <= RGAMSQ )
{
*dd1 = *dd1 * (GAM * GAM);
*dx1 = *dx1 / GAM;
dh11 = dh11 / GAM;
dh12 = dh12 / GAM;
}
else
{
*dd1 = *dd1 / (GAM * GAM);
*dx1 = *dx1 * GAM;
dh11 = dh11 * GAM;
dh12 = dh12 * GAM;
}
}
}
if(*dd2 != ZERO)
{
while( (ABS(*dd2) <= RGAMSQ) || (ABS(*dd2) >= GAMSQ) )
{
if(dflag == ZERO)
{
dh11 = ONE;
dh22 = ONE;
dflag = -ONE;
}
else
{
dh21 = -ONE;
dh12 = ONE;
dflag = -ONE;
}
if( ABS(*dd2) <= RGAMSQ )
{
*dd2 = *dd2 * (GAM * GAM);
dh21 = dh21 / GAM;
dh22 = dh22 / GAM;
}
else
{
*dd2 = *dd2 / (GAM * GAM);
dh21 = dh21 * GAM;
dh22 = dh22 * GAM;
}
}
}
}

if(dflag < ZERO)
{
dparam[1] = dh11;
dparam[2] = dh21;
dparam[3] = dh12;
dparam[4] = dh22;
}
else
{
if(dflag == ZERO)
{
dparam[2] = dh21;
dparam[3] = dh12;
}
else
{
dparam[1] = dh11;
dparam[4] = dh22;
}
}


dparam[0] = dflag;
return;
}



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