/*********************************************************************/ /* 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" int CNAME(BLASLONG m, BLASLONG n, FLOAT *a, BLASLONG lda, FLOAT *b){ BLASLONG i, j; FLOAT *a_offset, *a_offset1, *a_offset2, *a_offset3, *a_offset4; FLOAT *b_offset, *b_offset1, *b_offset2, *b_offset3; FLOAT ctemp1, ctemp2, ctemp3, ctemp4; FLOAT ctemp5, ctemp6, ctemp7, ctemp8; FLOAT ctemp9, ctemp10, ctemp11, ctemp12; FLOAT ctemp13, ctemp14, ctemp15, ctemp16; a_offset = a; b_offset = b; b_offset2 = b + m * (n & ~3); b_offset3 = b + m * (n & ~1); j = (m >> 2); if (j > 0){ do{ a_offset1 = a_offset; a_offset2 = a_offset1 + lda; a_offset3 = a_offset2 + lda; a_offset4 = a_offset3 + lda; a_offset += 4 * lda; b_offset1 = b_offset; b_offset += 16; i = (n >> 2); if (i > 0){ do{ ctemp1 = *(a_offset1 + 0); ctemp2 = *(a_offset1 + 1); ctemp3 = *(a_offset1 + 2); ctemp4 = *(a_offset1 + 3); ctemp5 = *(a_offset2 + 0); ctemp6 = *(a_offset2 + 1); ctemp7 = *(a_offset2 + 2); ctemp8 = *(a_offset2 + 3); ctemp9 = *(a_offset3 + 0); ctemp10 = *(a_offset3 + 1); ctemp11 = *(a_offset3 + 2); ctemp12 = *(a_offset3 + 3); ctemp13 = *(a_offset4 + 0); ctemp14 = *(a_offset4 + 1); ctemp15 = *(a_offset4 + 2); ctemp16 = *(a_offset4 + 3); a_offset1 += 4; a_offset2 += 4; a_offset3 += 4; a_offset4 += 4; *(b_offset1 + 0) = -ctemp1; *(b_offset1 + 1) = -ctemp2; *(b_offset1 + 2) = -ctemp3; *(b_offset1 + 3) = -ctemp4; *(b_offset1 + 4) = -ctemp5; *(b_offset1 + 5) = -ctemp6; *(b_offset1 + 6) = -ctemp7; *(b_offset1 + 7) = -ctemp8; *(b_offset1 + 8) = -ctemp9; *(b_offset1 + 9) = -ctemp10; *(b_offset1 + 10) = -ctemp11; *(b_offset1 + 11) = -ctemp12; *(b_offset1 + 12) = -ctemp13; *(b_offset1 + 13) = -ctemp14; *(b_offset1 + 14) = -ctemp15; *(b_offset1 + 15) = -ctemp16; b_offset1 += m * 4; i --; }while(i > 0); } if (n & 2) { ctemp1 = *(a_offset1 + 0); ctemp2 = *(a_offset1 + 1); ctemp3 = *(a_offset2 + 0); ctemp4 = *(a_offset2 + 1); ctemp5 = *(a_offset3 + 0); ctemp6 = *(a_offset3 + 1); ctemp7 = *(a_offset4 + 0); ctemp8 = *(a_offset4 + 1); a_offset1 += 2; a_offset2 += 2; a_offset3 += 2; a_offset4 += 2; *(b_offset2 + 0) = -ctemp1; *(b_offset2 + 1) = -ctemp2; *(b_offset2 + 2) = -ctemp3; *(b_offset2 + 3) = -ctemp4; *(b_offset2 + 4) = -ctemp5; *(b_offset2 + 5) = -ctemp6; *(b_offset2 + 6) = -ctemp7; *(b_offset2 + 7) = -ctemp8; b_offset2 += 8; } if (n & 1) { ctemp1 = *(a_offset1 + 0); ctemp2 = *(a_offset2 + 0); ctemp3 = *(a_offset3 + 0); ctemp4 = *(a_offset4 + 0); *(b_offset3 + 0) = -ctemp1; *(b_offset3 + 1) = -ctemp2; *(b_offset3 + 2) = -ctemp3; *(b_offset3 + 3) = -ctemp4; b_offset3 += 4; } j--; }while(j > 0); } if (m & 2){ a_offset1 = a_offset; a_offset2 = a_offset1 + lda; a_offset += 2 * lda; b_offset1 = b_offset; b_offset += 8; i = (n >> 2); if (i > 0){ do{ ctemp1 = *(a_offset1 + 0); ctemp2 = *(a_offset1 + 1); ctemp3 = *(a_offset1 + 2); ctemp4 = *(a_offset1 + 3); ctemp5 = *(a_offset2 + 0); ctemp6 = *(a_offset2 + 1); ctemp7 = *(a_offset2 + 2); ctemp8 = *(a_offset2 + 3); a_offset1 += 4; a_offset2 += 4; *(b_offset1 + 0) = -ctemp1; *(b_offset1 + 1) = -ctemp2; *(b_offset1 + 2) = -ctemp3; *(b_offset1 + 3) = -ctemp4; *(b_offset1 + 4) = -ctemp5; *(b_offset1 + 5) = -ctemp6; *(b_offset1 + 6) = -ctemp7; *(b_offset1 + 7) = -ctemp8; b_offset1 += m * 4; i --; }while(i > 0); } if (n & 2) { ctemp1 = *(a_offset1 + 0); ctemp2 = *(a_offset1 + 1); ctemp3 = *(a_offset2 + 0); ctemp4 = *(a_offset2 + 1); a_offset1 += 2; a_offset2 += 2; *(b_offset2 + 0) = -ctemp1; *(b_offset2 + 1) = -ctemp2; *(b_offset2 + 2) = -ctemp3; *(b_offset2 + 3) = -ctemp4; b_offset2 += 4; } if (n & 1) { ctemp1 = *(a_offset1 + 0); ctemp2 = *(a_offset2 + 0); *(b_offset3 + 0) = -ctemp1; *(b_offset3 + 1) = -ctemp2; b_offset3 += 2; } } if (m & 1){ a_offset1 = a_offset; b_offset1 = b_offset; i = (n >> 2); if (i > 0){ do{ ctemp1 = *(a_offset1 + 0); ctemp2 = *(a_offset1 + 1); ctemp3 = *(a_offset1 + 2); ctemp4 = *(a_offset1 + 3); a_offset1 += 4; *(b_offset1 + 0) = -ctemp1; *(b_offset1 + 1) = -ctemp2; *(b_offset1 + 2) = -ctemp3; *(b_offset1 + 3) = -ctemp4; b_offset1 += 4 * m; i --; }while(i > 0); } if (n & 2) { ctemp1 = *(a_offset1 + 0); ctemp2 = *(a_offset1 + 1); a_offset1 += 2; *(b_offset2 + 0) = -ctemp1; *(b_offset2 + 1) = -ctemp2; } if (n & 1) { ctemp1 = *(a_offset1 + 0); *(b_offset3 + 0) = -ctemp1; } } return 0; }