1 /* blas/source_trmm_c.h
3 * Copyright (C) 2001, 2007 Brian Gough
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 3 of the License, or (at
8 * your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
23 const int nonunit = (Diag == CblasNonUnit);
24 const int conj = (TransA == CblasConjTrans) ? -1 : 1;
25 int side, uplo, trans;
27 const BASE alpha_real = CONST_REAL0(alpha);
28 const BASE alpha_imag = CONST_IMAG0(alpha);
30 if (Order == CblasRowMajor) {
35 trans = (TransA == CblasNoTrans) ? CblasNoTrans : CblasTrans;
39 side = (Side == CblasLeft) ? CblasRight : CblasLeft; /* exchanged */
40 uplo = (Uplo == CblasUpper) ? CblasLower : CblasUpper; /* exchanged */
41 trans = (TransA == CblasNoTrans) ? CblasNoTrans : CblasTrans; /* same */
44 if (side == CblasLeft && uplo == CblasUpper && trans == CblasNoTrans) {
46 /* form B := alpha * TriU(A)*B */
48 for (i = 0; i < n1; i++) {
49 for (j = 0; j < n2; j++) {
54 const BASE Aii_real = CONST_REAL(A, i * lda + i);
55 const BASE Aii_imag = conj * CONST_IMAG(A, i * lda + i);
56 const BASE Bij_real = REAL(B, i * ldb + j);
57 const BASE Bij_imag = IMAG(B, i * ldb + j);
58 temp_real = Aii_real * Bij_real - Aii_imag * Bij_imag;
59 temp_imag = Aii_real * Bij_imag + Aii_imag * Bij_real;
61 temp_real = REAL(B, i * ldb + j);
62 temp_imag = IMAG(B, i * ldb + j);
65 for (k = i + 1; k < n1; k++) {
66 const BASE Aik_real = CONST_REAL(A, i * lda + k);
67 const BASE Aik_imag = conj * CONST_IMAG(A, i * lda + k);
68 const BASE Bkj_real = REAL(B, k * ldb + j);
69 const BASE Bkj_imag = IMAG(B, k * ldb + j);
70 temp_real += Aik_real * Bkj_real - Aik_imag * Bkj_imag;
71 temp_imag += Aik_real * Bkj_imag + Aik_imag * Bkj_real;
74 REAL(B, ldb * i + j) = alpha_real * temp_real - alpha_imag * temp_imag;
75 IMAG(B, ldb * i + j) = alpha_real * temp_imag + alpha_imag * temp_real;
79 } else if (side == CblasLeft && uplo == CblasUpper && trans == CblasTrans) {
81 /* form B := alpha * (TriU(A))' *B */
83 for (i = n1; i > 0 && i--;) {
84 for (j = 0; j < n2; j++) {
88 for (k = 0; k < i; k++) {
89 const BASE Aki_real = CONST_REAL(A, k * lda + i);
90 const BASE Aki_imag = conj * CONST_IMAG(A, k * lda + i);
91 const BASE Bkj_real = REAL(B, k * ldb + j);
92 const BASE Bkj_imag = IMAG(B, k * ldb + j);
93 temp_real += Aki_real * Bkj_real - Aki_imag * Bkj_imag;
94 temp_imag += Aki_real * Bkj_imag + Aki_imag * Bkj_real;
98 const BASE Aii_real = CONST_REAL(A, i * lda + i);
99 const BASE Aii_imag = conj * CONST_IMAG(A, i * lda + i);
100 const BASE Bij_real = REAL(B, i * ldb + j);
101 const BASE Bij_imag = IMAG(B, i * ldb + j);
102 temp_real += Aii_real * Bij_real - Aii_imag * Bij_imag;
103 temp_imag += Aii_real * Bij_imag + Aii_imag * Bij_real;
105 temp_real += REAL(B, i * ldb + j);
106 temp_imag += IMAG(B, i * ldb + j);
109 REAL(B, ldb * i + j) = alpha_real * temp_real - alpha_imag * temp_imag;
110 IMAG(B, ldb * i + j) = alpha_real * temp_imag + alpha_imag * temp_real;
114 } else if (side == CblasLeft && uplo == CblasLower && trans == CblasNoTrans) {
116 /* form B := alpha * TriL(A)*B */
119 for (i = n1; i > 0 && i--;) {
120 for (j = 0; j < n2; j++) {
121 BASE temp_real = 0.0;
122 BASE temp_imag = 0.0;
124 for (k = 0; k < i; k++) {
125 const BASE Aik_real = CONST_REAL(A, i * lda + k);
126 const BASE Aik_imag = conj * CONST_IMAG(A, i * lda + k);
127 const BASE Bkj_real = REAL(B, k * ldb + j);
128 const BASE Bkj_imag = IMAG(B, k * ldb + j);
129 temp_real += Aik_real * Bkj_real - Aik_imag * Bkj_imag;
130 temp_imag += Aik_real * Bkj_imag + Aik_imag * Bkj_real;
134 const BASE Aii_real = CONST_REAL(A, i * lda + i);
135 const BASE Aii_imag = conj * CONST_IMAG(A, i * lda + i);
136 const BASE Bij_real = REAL(B, i * ldb + j);
137 const BASE Bij_imag = IMAG(B, i * ldb + j);
138 temp_real += Aii_real * Bij_real - Aii_imag * Bij_imag;
139 temp_imag += Aii_real * Bij_imag + Aii_imag * Bij_real;
141 temp_real += REAL(B, i * ldb + j);
142 temp_imag += IMAG(B, i * ldb + j);
145 REAL(B, ldb * i + j) = alpha_real * temp_real - alpha_imag * temp_imag;
146 IMAG(B, ldb * i + j) = alpha_real * temp_imag + alpha_imag * temp_real;
152 } else if (side == CblasLeft && uplo == CblasLower && trans == CblasTrans) {
154 /* form B := alpha * TriL(A)' *B */
156 for (i = 0; i < n1; i++) {
157 for (j = 0; j < n2; j++) {
158 BASE temp_real = 0.0;
159 BASE temp_imag = 0.0;
162 const BASE Aii_real = CONST_REAL(A, i * lda + i);
163 const BASE Aii_imag = conj * CONST_IMAG(A, i * lda + i);
164 const BASE Bij_real = REAL(B, i * ldb + j);
165 const BASE Bij_imag = IMAG(B, i * ldb + j);
166 temp_real = Aii_real * Bij_real - Aii_imag * Bij_imag;
167 temp_imag = Aii_real * Bij_imag + Aii_imag * Bij_real;
169 temp_real = REAL(B, i * ldb + j);
170 temp_imag = IMAG(B, i * ldb + j);
173 for (k = i + 1; k < n1; k++) {
174 const BASE Aki_real = CONST_REAL(A, k * lda + i);
175 const BASE Aki_imag = conj * CONST_IMAG(A, k * lda + i);
176 const BASE Bkj_real = REAL(B, k * ldb + j);
177 const BASE Bkj_imag = IMAG(B, k * ldb + j);
178 temp_real += Aki_real * Bkj_real - Aki_imag * Bkj_imag;
179 temp_imag += Aki_real * Bkj_imag + Aki_imag * Bkj_real;
182 REAL(B, ldb * i + j) = alpha_real * temp_real - alpha_imag * temp_imag;
183 IMAG(B, ldb * i + j) = alpha_real * temp_imag + alpha_imag * temp_real;
187 } else if (side == CblasRight && uplo == CblasUpper && trans == CblasNoTrans) {
189 /* form B := alpha * B * TriU(A) */
191 for (i = 0; i < n1; i++) {
192 for (j = n2; j > 0 && j--;) {
193 BASE temp_real = 0.0;
194 BASE temp_imag = 0.0;
196 for (k = 0; k < j; k++) {
197 const BASE Akj_real = CONST_REAL(A, k * lda + j);
198 const BASE Akj_imag = conj * CONST_IMAG(A, k * lda + j);
199 const BASE Bik_real = REAL(B, i * ldb + k);
200 const BASE Bik_imag = IMAG(B, i * ldb + k);
201 temp_real += Akj_real * Bik_real - Akj_imag * Bik_imag;
202 temp_imag += Akj_real * Bik_imag + Akj_imag * Bik_real;
206 const BASE Ajj_real = CONST_REAL(A, j * lda + j);
207 const BASE Ajj_imag = conj * CONST_IMAG(A, j * lda + j);
208 const BASE Bij_real = REAL(B, i * ldb + j);
209 const BASE Bij_imag = IMAG(B, i * ldb + j);
210 temp_real += Ajj_real * Bij_real - Ajj_imag * Bij_imag;
211 temp_imag += Ajj_real * Bij_imag + Ajj_imag * Bij_real;
213 temp_real += REAL(B, i * ldb + j);
214 temp_imag += IMAG(B, i * ldb + j);
217 REAL(B, ldb * i + j) = alpha_real * temp_real - alpha_imag * temp_imag;
218 IMAG(B, ldb * i + j) = alpha_real * temp_imag + alpha_imag * temp_real;
222 } else if (side == CblasRight && uplo == CblasUpper && trans == CblasTrans) {
224 /* form B := alpha * B * (TriU(A))' */
226 for (i = 0; i < n1; i++) {
227 for (j = 0; j < n2; j++) {
228 BASE temp_real = 0.0;
229 BASE temp_imag = 0.0;
232 const BASE Ajj_real = CONST_REAL(A, j * lda + j);
233 const BASE Ajj_imag = conj * CONST_IMAG(A, j * lda + j);
234 const BASE Bij_real = REAL(B, i * ldb + j);
235 const BASE Bij_imag = IMAG(B, i * ldb + j);
236 temp_real = Ajj_real * Bij_real - Ajj_imag * Bij_imag;
237 temp_imag = Ajj_real * Bij_imag + Ajj_imag * Bij_real;
239 temp_real = REAL(B, i * ldb + j);
240 temp_imag = IMAG(B, i * ldb + j);
243 for (k = j + 1; k < n2; k++) {
244 const BASE Ajk_real = CONST_REAL(A, j * lda + k);
245 const BASE Ajk_imag = conj * CONST_IMAG(A, j * lda + k);
246 const BASE Bik_real = REAL(B, i * ldb + k);
247 const BASE Bik_imag = IMAG(B, i * ldb + k);
248 temp_real += Ajk_real * Bik_real - Ajk_imag * Bik_imag;
249 temp_imag += Ajk_real * Bik_imag + Ajk_imag * Bik_real;
252 REAL(B, ldb * i + j) = alpha_real * temp_real - alpha_imag * temp_imag;
253 IMAG(B, ldb * i + j) = alpha_real * temp_imag + alpha_imag * temp_real;
257 } else if (side == CblasRight && uplo == CblasLower && trans == CblasNoTrans) {
259 /* form B := alpha *B * TriL(A) */
261 for (i = 0; i < n1; i++) {
262 for (j = 0; j < n2; j++) {
263 BASE temp_real = 0.0;
264 BASE temp_imag = 0.0;
267 const BASE Ajj_real = CONST_REAL(A, j * lda + j);
268 const BASE Ajj_imag = conj * CONST_IMAG(A, j * lda + j);
269 const BASE Bij_real = REAL(B, i * ldb + j);
270 const BASE Bij_imag = IMAG(B, i * ldb + j);
271 temp_real = Ajj_real * Bij_real - Ajj_imag * Bij_imag;
272 temp_imag = Ajj_real * Bij_imag + Ajj_imag * Bij_real;
274 temp_real = REAL(B, i * ldb + j);
275 temp_imag = IMAG(B, i * ldb + j);
278 for (k = j + 1; k < n2; k++) {
279 const BASE Akj_real = CONST_REAL(A, k * lda + j);
280 const BASE Akj_imag = conj * CONST_IMAG(A, k * lda + j);
281 const BASE Bik_real = REAL(B, i * ldb + k);
282 const BASE Bik_imag = IMAG(B, i * ldb + k);
283 temp_real += Akj_real * Bik_real - Akj_imag * Bik_imag;
284 temp_imag += Akj_real * Bik_imag + Akj_imag * Bik_real;
287 REAL(B, ldb * i + j) = alpha_real * temp_real - alpha_imag * temp_imag;
288 IMAG(B, ldb * i + j) = alpha_real * temp_imag + alpha_imag * temp_real;
292 } else if (side == CblasRight && uplo == CblasLower && trans == CblasTrans) {
294 /* form B := alpha * B * TriL(A)' */
296 for (i = 0; i < n1; i++) {
297 for (j = n2; j > 0 && j--;) {
298 BASE temp_real = 0.0;
299 BASE temp_imag = 0.0;
301 for (k = 0; k < j; k++) {
302 const BASE Ajk_real = CONST_REAL(A, j * lda + k);
303 const BASE Ajk_imag = conj * CONST_IMAG(A, j * lda + k);
304 const BASE Bik_real = REAL(B, i * ldb + k);
305 const BASE Bik_imag = IMAG(B, i * ldb + k);
306 temp_real += Ajk_real * Bik_real - Ajk_imag * Bik_imag;
307 temp_imag += Ajk_real * Bik_imag + Ajk_imag * Bik_real;
311 const BASE Ajj_real = CONST_REAL(A, j * lda + j);
312 const BASE Ajj_imag = conj * CONST_IMAG(A, j * lda + j);
313 const BASE Bij_real = REAL(B, i * ldb + j);
314 const BASE Bij_imag = IMAG(B, i * ldb + j);
315 temp_real += Ajj_real * Bij_real - Ajj_imag * Bij_imag;
316 temp_imag += Ajj_real * Bij_imag + Ajj_imag * Bij_real;
318 temp_real += REAL(B, i * ldb + j);
319 temp_imag += IMAG(B, i * ldb + j);
322 REAL(B, ldb * i + j) = alpha_real * temp_real - alpha_imag * temp_imag;
323 IMAG(B, ldb * i + j) = alpha_real * temp_imag + alpha_imag * temp_real;
328 BLAS_ERROR("unrecognized operation");