/*********************************************************************/ /* Copyright 2009, 2010 The University of Texas at Austin. */ /* 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. */ /* */ /* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY OF TEXAS AT */ /* AUSTIN ``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 UNIVERSITY OF TEXAS AT */ /* AUSTIN 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. */ /* */ /* The views and conclusions contained in the software and */ /* documentation are those of the authors and should not be */ /* interpreted as representing official policies, either expressed */ /* or implied, of The University of Texas at Austin. */ /*********************************************************************/ #include #include "common.h" #ifndef UNIT #define INV(a) (ONE / (a)) #else #define INV(a) (ONE) #endif int CNAME(BLASLONG m, BLASLONG n, FLOAT *a, BLASLONG lda, BLASLONG offset, FLOAT *b){ BLASLONG i, ii, j, jj; FLOAT data01, data02, data03, data04, data05, data06, data07, data08; FLOAT data09, data10, data11, data12, data13, data14, data15, data16; FLOAT *a1, *a2, *a3, *a4; jj = offset; j = (n >> 2); while (j > 0){ a1 = a + 0 * lda; a2 = a + 1 * lda; a3 = a + 2 * lda; a4 = a + 3 * lda; i = (m >> 2); ii = 0; while (i > 0) { if (ii == jj) { #ifndef UNIT data01 = *(a1 + 0); #endif data05 = *(a2 + 0); #ifndef UNIT data06 = *(a2 + 1); #endif data09 = *(a3 + 0); data10 = *(a3 + 1); #ifndef UNIT data11 = *(a3 + 2); #endif data13 = *(a4 + 0); data14 = *(a4 + 1); data15 = *(a4 + 2); #ifndef UNIT data16 = *(a4 + 3); #endif *(b + 0) = INV(data01); *(b + 4) = data05; *(b + 5) = INV(data06); *(b + 8) = data09; *(b + 9) = data10; *(b + 10) = INV(data11); *(b + 12) = data13; *(b + 13) = data14; *(b + 14) = data15; *(b + 15) = INV(data16); } if (ii > jj) { data01 = *(a1 + 0); data02 = *(a1 + 1); data03 = *(a1 + 2); data04 = *(a1 + 3); data05 = *(a2 + 0); data06 = *(a2 + 1); data07 = *(a2 + 2); data08 = *(a2 + 3); data09 = *(a3 + 0); data10 = *(a3 + 1); data11 = *(a3 + 2); data12 = *(a3 + 3); data13 = *(a4 + 0); data14 = *(a4 + 1); data15 = *(a4 + 2); data16 = *(a4 + 3); *(b + 0) = data01; *(b + 1) = data02; *(b + 2) = data03; *(b + 3) = data04; *(b + 4) = data05; *(b + 5) = data06; *(b + 6) = data07; *(b + 7) = data08; *(b + 8) = data09; *(b + 9) = data10; *(b + 10) = data11; *(b + 11) = data12; *(b + 12) = data13; *(b + 13) = data14; *(b + 14) = data15; *(b + 15) = data16; } a1 += 4 * lda; a2 += 4 * lda; a3 += 4 * lda; a4 += 4 * lda; b += 16; i --; ii += 4; } if ((m & 2) != 0) { if (ii== jj) { #ifndef UNIT data01 = *(a1 + 0); #endif data05 = *(a2 + 0); #ifndef UNIT data06 = *(a2 + 1); #endif *(b + 0) = INV(data01); *(b + 4) = data05; *(b + 5) = INV(data06); } if (ii > jj) { data01 = *(a1 + 0); data02 = *(a1 + 1); data03 = *(a1 + 2); data04 = *(a1 + 3); data05 = *(a2 + 0); data06 = *(a2 + 1); data07 = *(a2 + 2); data08 = *(a2 + 3); *(b + 0) = data01; *(b + 1) = data02; *(b + 2) = data03; *(b + 3) = data04; *(b + 4) = data05; *(b + 5) = data06; *(b + 6) = data07; *(b + 7) = data08; } a1 += 2 * lda; a2 += 2 * lda; b += 8; ii += 2; } if ((m & 1) != 0) { if (ii== jj) { #ifndef UNIT data01 = *(a1 + 0); #endif *(b + 0) = INV(data01); } if (ii > jj) { data01 = *(a1 + 0); data02 = *(a1 + 1); data03 = *(a1 + 2); data04 = *(a1 + 3); *(b + 0) = data01; *(b + 1) = data02; *(b + 2) = data03; *(b + 3) = data04; } b += 4; } a += 4; jj += 4; j --; } if (n & 2) { a1 = a + 0 * lda; a2 = a + 1 * lda; i = (m >> 1); ii = 0; while (i > 0) { if (ii == jj) { #ifndef UNIT data01 = *(a1 + 0); #endif data03 = *(a2 + 0); #ifndef UNIT data04 = *(a2 + 1); #endif *(b + 0) = INV(data01); *(b + 2) = data03; *(b + 3) = INV(data04); } if (ii > jj) { data01 = *(a1 + 0); data02 = *(a1 + 1); data03 = *(a2 + 0); data04 = *(a2 + 1); *(b + 0) = data01; *(b + 1) = data02; *(b + 2) = data03; *(b + 3) = data04; } a1 += 2 * lda; a2 += 2 * lda; b += 4; i --; ii += 2; } if ((m & 1) != 0) { if (ii== jj) { #ifndef UNIT data01 = *(a1 + 0); #endif *(b + 0) = INV(data01); } if (ii > jj) { data01 = *(a1 + 0); data02 = *(a1 + 1); *(b + 0) = data01; *(b + 1) = data02; } b += 2; } a += 2; jj += 2; } if (n & 1) { a1 = a + 0 * lda; i = m; ii = 0; while (i > 0) { if (ii == jj) { #ifndef UNIT data01 = *(a1 + 0); #endif *(b + 0) = INV(data01); } if (ii > jj) { data01 = *(a1 + 0); *(b + 0) = data01; } a1 += 1 * lda; b += 1; i --; ii += 1; } } return 0; }