/*

   BLIS
   An object-based framework for developing high-performance BLAS-like
   libraries.

   Copyright (C) 2014, The University of Texas at Austin

   Redistribution and use in source and binary forms, with or without
   modification, are permitted provided that the following conditions are
   met:
    - Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    - 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.
    - Neither the name(s) of the copyright holder(s) 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 COPYRIGHT
   HOLDER 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.

*/

#include "blis.h"

#ifdef BLIS_ENABLE_BLAS

/* srotm.f -- translated by f2c (version 19991025).
   You must link the resulting object file with the libraries:
	-lf2c -lm   (in that order)
*/

/* Subroutine */ int PASTEF77(s,rotm)(const bla_integer *n, bla_real *sx, const bla_integer *incx, bla_real *sy, const bla_integer *incy, const bla_real *sparam)
{
    /* Initialized data */

    static bla_real zero = 0.f;
    static bla_real two = 2.f;

    /* System generated locals */
    bla_integer i__1, i__2;

    /* Local variables */
    bla_integer i__;
    bla_real w, z__, sflag;
    bla_integer kx, ky, nsteps;
    bla_real sh11, sh12, sh21, sh22;


/*     APPLY THE MODIFIED GIVENS TRANSFORMATION, H, TO THE 2 BY N MATRIX */

/*     (SX**T) , WHERE **T INDICATES TRANSPOSE. THE ELEMENTS OF SX ARE IN */
/*     (DX**T) */

/*     SX(LX+I*INCX), I = 0 TO N-1, WHERE LX = 1 IF INCX .GE. 0, ELSE */
/*     LX = (-INCX)*N, AND SIMILARLY FOR SY USING USING LY AND INCY. */
/*     WITH SPARAM(1)=SFLAG, H HAS ONE OF THE FOLLOWING FORMS.. */

/*     SFLAG=-1.E0     SFLAG=0.E0        SFLAG=1.E0     SFLAG=-2.E0 */

/*       (SH11  SH12)    (1.E0  SH12)    (SH11  1.E0)    (1.E0  0.E0) */
/*     H=(          )    (          )    (          )    (          ) */
/*       (SH21  SH22),   (SH21  1.E0),   (-1.E0 SH22),   (0.E0  1.E0). */
/*     SEE  SROTMG FOR A DESCRIPTION OF DATA STORAGE IN SPARAM. */

    /* Parameter adjustments */
    --sparam;
    --sy;
    --sx;

    /* Function Body */

    sflag = sparam[1];
    if (*n <= 0 || sflag + two == zero) {
	goto L140;
    }
    if (! (*incx == *incy && *incx > 0)) {
	goto L70;
    }

    nsteps = *n * *incx;
    if (sflag < 0.f) {
	goto L50;
    } else if (sflag == 0) {
	goto L10;
    } else {
	goto L30;
    }
L10:
    sh12 = sparam[4];
    sh21 = sparam[3];
    i__1 = nsteps;
    i__2 = *incx;
    for (i__ = 1; i__2 < 0 ? i__ >= i__1 : i__ <= i__1; i__ += i__2) {
	w = sx[i__];
	z__ = sy[i__];
	sx[i__] = w + z__ * sh12;
	sy[i__] = w * sh21 + z__;
/* L20: */
    }
    goto L140;
L30:
    sh11 = sparam[2];
    sh22 = sparam[5];
    i__2 = nsteps;
    i__1 = *incx;
    for (i__ = 1; i__1 < 0 ? i__ >= i__2 : i__ <= i__2; i__ += i__1) {
	w = sx[i__];
	z__ = sy[i__];
	sx[i__] = w * sh11 + z__;
	sy[i__] = -w + sh22 * z__;
/* L40: */
    }
    goto L140;
L50:
    sh11 = sparam[2];
    sh12 = sparam[4];
    sh21 = sparam[3];
    sh22 = sparam[5];
    i__1 = nsteps;
    i__2 = *incx;
    for (i__ = 1; i__2 < 0 ? i__ >= i__1 : i__ <= i__1; i__ += i__2) {
	w = sx[i__];
	z__ = sy[i__];
	sx[i__] = w * sh11 + z__ * sh12;
	sy[i__] = w * sh21 + z__ * sh22;
/* L60: */
    }
    goto L140;
L70:
    kx = 1;
    ky = 1;
    if (*incx < 0) {
	kx = (1 - *n) * *incx + 1;
    }
    if (*incy < 0) {
	ky = (1 - *n) * *incy + 1;
    }

    if (sflag < 0.f) {
	goto L120;
    } else if (sflag == 0) {
	goto L80;
    } else {
	goto L100;
    }
L80:
    sh12 = sparam[4];
    sh21 = sparam[3];
    i__2 = *n;
    for (i__ = 1; i__ <= i__2; ++i__) {
	w = sx[kx];
	z__ = sy[ky];
	sx[kx] = w + z__ * sh12;
	sy[ky] = w * sh21 + z__;
	kx += *incx;
	ky += *incy;
/* L90: */
    }
    goto L140;
L100:
    sh11 = sparam[2];
    sh22 = sparam[5];
    i__2 = *n;
    for (i__ = 1; i__ <= i__2; ++i__) {
	w = sx[kx];
	z__ = sy[ky];
	sx[kx] = w * sh11 + z__;
	sy[ky] = -w + sh22 * z__;
	kx += *incx;
	ky += *incy;
/* L110: */
    }
    goto L140;
L120:
    sh11 = sparam[2];
    sh12 = sparam[4];
    sh21 = sparam[3];
    sh22 = sparam[5];
    i__2 = *n;
    for (i__ = 1; i__ <= i__2; ++i__) {
	w = sx[kx];
	z__ = sy[ky];
	sx[kx] = w * sh11 + z__ * sh12;
	sy[ky] = w * sh21 + z__ * sh22;
	kx += *incx;
	ky += *incy;
/* L130: */
    }
L140:
    return 0;
} /* srotm_ */

/* drotm.f -- translated by f2c (version 19991025).
   You must link the resulting object file with the libraries:
	-lf2c -lm   (in that order)
*/

/* Subroutine */ int PASTEF77(d,rotm)(const bla_integer *n, bla_double *dx, const bla_integer *incx, bla_double *dy, const bla_integer *incy, const bla_double *dparam)
{
    /* Initialized data */

    static bla_double zero = 0.;
    static bla_double two = 2.;

    /* System generated locals */
    bla_integer i__1, i__2;

    /* Local variables */
    bla_integer i__;
    bla_double dflag, w, z__;
    bla_integer kx, ky, nsteps;
    bla_double dh11, dh12, dh22, dh21;


/*     APPLY THE MODIFIED GIVENS TRANSFORMATION, H, TO THE 2 BY N MATRIX */

/*     (DX**T) , WHERE **T INDICATES TRANSPOSE. THE ELEMENTS OF DX ARE IN */
/*     (DY**T) */

/*     DX(LX+I*INCX), I = 0 TO N-1, WHERE LX = 1 IF INCX .GE. 0, ELSE */
/*     LX = (-INCX)*N, AND SIMILARLY FOR SY USING LY AND INCY. */
/*     WITH DPARAM(1)=DFLAG, H HAS ONE OF THE FOLLOWING FORMS.. */

/*     DFLAG=-1.D0     DFLAG=0.D0        DFLAG=1.D0     DFLAG=-2.D0 */

/*       (DH11  DH12)    (1.D0  DH12)    (DH11  1.D0)    (1.D0  0.D0) */
/*     H=(          )    (          )    (          )    (          ) */
/*       (DH21  DH22),   (DH21  1.D0),   (-1.D0 DH22),   (0.D0  1.D0). */
/*     SEE DROTMG FOR A DESCRIPTION OF DATA STORAGE IN DPARAM. */

    /* Parameter adjustments */
    --dparam;
    --dy;
    --dx;

    /* Function Body */

    dflag = dparam[1];
    if (*n <= 0 || dflag + two == zero) {
	goto L140;
    }
    if (! (*incx == *incy && *incx > 0)) {
	goto L70;
    }

    nsteps = *n * *incx;
    if (dflag < 0.) {
	goto L50;
    } else if (dflag == 0) {
	goto L10;
    } else {
	goto L30;
    }
L10:
    dh12 = dparam[4];
    dh21 = dparam[3];
    i__1 = nsteps;
    i__2 = *incx;
    for (i__ = 1; i__2 < 0 ? i__ >= i__1 : i__ <= i__1; i__ += i__2) {
	w = dx[i__];
	z__ = dy[i__];
	dx[i__] = w + z__ * dh12;
	dy[i__] = w * dh21 + z__;
/* L20: */
    }
    goto L140;
L30:
    dh11 = dparam[2];
    dh22 = dparam[5];
    i__2 = nsteps;
    i__1 = *incx;
    for (i__ = 1; i__1 < 0 ? i__ >= i__2 : i__ <= i__2; i__ += i__1) {
	w = dx[i__];
	z__ = dy[i__];
	dx[i__] = w * dh11 + z__;
	dy[i__] = -w + dh22 * z__;
/* L40: */
    }
    goto L140;
L50:
    dh11 = dparam[2];
    dh12 = dparam[4];
    dh21 = dparam[3];
    dh22 = dparam[5];
    i__1 = nsteps;
    i__2 = *incx;
    for (i__ = 1; i__2 < 0 ? i__ >= i__1 : i__ <= i__1; i__ += i__2) {
	w = dx[i__];
	z__ = dy[i__];
	dx[i__] = w * dh11 + z__ * dh12;
	dy[i__] = w * dh21 + z__ * dh22;
/* L60: */
    }
    goto L140;
L70:
    kx = 1;
    ky = 1;
    if (*incx < 0) {
	kx = (1 - *n) * *incx + 1;
    }
    if (*incy < 0) {
	ky = (1 - *n) * *incy + 1;
    }

    if (dflag < 0.) {
	goto L120;
    } else if (dflag == 0) {
	goto L80;
    } else {
	goto L100;
    }
L80:
    dh12 = dparam[4];
    dh21 = dparam[3];
    i__2 = *n;
    for (i__ = 1; i__ <= i__2; ++i__) {
	w = dx[kx];
	z__ = dy[ky];
	dx[kx] = w + z__ * dh12;
	dy[ky] = w * dh21 + z__;
	kx += *incx;
	ky += *incy;
/* L90: */
    }
    goto L140;
L100:
    dh11 = dparam[2];
    dh22 = dparam[5];
    i__2 = *n;
    for (i__ = 1; i__ <= i__2; ++i__) {
	w = dx[kx];
	z__ = dy[ky];
	dx[kx] = w * dh11 + z__;
	dy[ky] = -w + dh22 * z__;
	kx += *incx;
	ky += *incy;
/* L110: */
    }
    goto L140;
L120:
    dh11 = dparam[2];
    dh12 = dparam[4];
    dh21 = dparam[3];
    dh22 = dparam[5];
    i__2 = *n;
    for (i__ = 1; i__ <= i__2; ++i__) {
	w = dx[kx];
	z__ = dy[ky];
	dx[kx] = w * dh11 + z__ * dh12;
	dy[ky] = w * dh21 + z__ * dh22;
	kx += *incx;
	ky += *incy;
/* L130: */
    }
L140:
    return 0;
} /* drotm_ */

#endif