1 /*********************************************************************/
2 /* Copyright 2009, 2010 The University of Texas at Austin. */
3 /* All rights reserved. */
5 /* Redistribution and use in source and binary forms, with or */
6 /* without modification, are permitted provided that the following */
7 /* conditions are met: */
9 /* 1. Redistributions of source code must retain the above */
10 /* copyright notice, this list of conditions and the following */
13 /* 2. Redistributions in binary form must reproduce the above */
14 /* copyright notice, this list of conditions and the following */
15 /* disclaimer in the documentation and/or other materials */
16 /* provided with the distribution. */
18 /* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY OF TEXAS AT */
19 /* AUSTIN ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, */
20 /* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */
21 /* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */
22 /* DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OF TEXAS AT */
23 /* AUSTIN OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, */
24 /* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES */
25 /* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE */
26 /* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR */
27 /* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */
28 /* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */
29 /* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT */
30 /* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE */
31 /* POSSIBILITY OF SUCH DAMAGE. */
33 /* The views and conclusions contained in the software and */
34 /* documentation are those of the authors and should not be */
35 /* interpreted as representing official policies, either expressed */
36 /* or implied, of The University of Texas at Austin. */
37 /*********************************************************************/
42 #ifdef FUNCTION_PROFILE
43 #include "functable.h"
47 #define ERROR_NAME "XTRSV "
49 #define ERROR_NAME "ZTRSV "
51 #define ERROR_NAME "CTRSV "
54 static int (*trsv[])(BLASLONG, FLOAT *, BLASLONG, FLOAT *, BLASLONG, void *) = {
56 xtrsv_NUU, xtrsv_NUN, xtrsv_NLU, xtrsv_NLN,
57 xtrsv_TUU, xtrsv_TUN, xtrsv_TLU, xtrsv_TLN,
58 xtrsv_RUU, xtrsv_RUN, xtrsv_RLU, xtrsv_RLN,
59 xtrsv_CUU, xtrsv_CUN, xtrsv_CLU, xtrsv_CLN,
61 ztrsv_NUU, ztrsv_NUN, ztrsv_NLU, ztrsv_NLN,
62 ztrsv_TUU, ztrsv_TUN, ztrsv_TLU, ztrsv_TLN,
63 ztrsv_RUU, ztrsv_RUN, ztrsv_RLU, ztrsv_RLN,
64 ztrsv_CUU, ztrsv_CUN, ztrsv_CLU, ztrsv_CLN,
66 ctrsv_NUU, ctrsv_NUN, ctrsv_NLU, ctrsv_NLN,
67 ctrsv_TUU, ctrsv_TUN, ctrsv_TLU, ctrsv_TLN,
68 ctrsv_RUU, ctrsv_RUN, ctrsv_RLU, ctrsv_RLN,
69 ctrsv_CUU, ctrsv_CUN, ctrsv_CLU, ctrsv_CLN,
75 void NAME(char *UPLO, char *TRANS, char *DIAG,
76 blasint *N, FLOAT *a, blasint *LDA, FLOAT *x, blasint *INCX){
78 char uplo_arg = *UPLO;
79 char trans_arg = *TRANS;
80 char diag_arg = *DIAG;
102 if (trans_arg == 'N') trans = 0;
103 if (trans_arg == 'T') trans = 1;
104 if (trans_arg == 'R') trans = 2;
105 if (trans_arg == 'C') trans = 3;
107 if (diag_arg == 'U') unit = 0;
108 if (diag_arg == 'N') unit = 1;
110 if (uplo_arg == 'U') uplo = 0;
111 if (uplo_arg == 'L') uplo = 1;
116 if (incx == 0) info = 8;
117 if (lda < MAX(1, n)) info = 6;
119 if (unit < 0) info = 3;
120 if (trans < 0) info = 2;
121 if (uplo < 0) info = 1;
124 BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
131 void CNAME(enum CBLAS_ORDER order, enum CBLAS_UPLO Uplo,
132 enum CBLAS_TRANSPOSE TransA, enum CBLAS_DIAG Diag,
133 blasint n, void *va, blasint lda, void *vx, blasint incx) {
135 FLOAT *a = (FLOAT*) va;
136 FLOAT *x = (FLOAT*) vx;
138 int trans, uplo, unit;
149 if (order == CblasColMajor) {
150 if (Uplo == CblasUpper) uplo = 0;
151 if (Uplo == CblasLower) uplo = 1;
153 if (TransA == CblasNoTrans) trans = 0;
154 if (TransA == CblasTrans) trans = 1;
155 if (TransA == CblasConjNoTrans) trans = 2;
156 if (TransA == CblasConjTrans) trans = 3;
158 if (Diag == CblasUnit) unit = 0;
159 if (Diag == CblasNonUnit) unit = 1;
163 if (incx == 0) info = 8;
164 if (lda < MAX(1, n)) info = 6;
166 if (unit < 0) info = 3;
167 if (trans < 0) info = 2;
168 if (uplo < 0) info = 1;
171 if (order == CblasRowMajor) {
172 if (Uplo == CblasUpper) uplo = 1;
173 if (Uplo == CblasLower) uplo = 0;
175 if (TransA == CblasNoTrans) trans = 1;
176 if (TransA == CblasTrans) trans = 0;
177 if (TransA == CblasConjNoTrans) trans = 3;
178 if (TransA == CblasConjTrans) trans = 2;
180 if (Diag == CblasUnit) unit = 0;
181 if (Diag == CblasNonUnit) unit = 1;
185 if (incx == 0) info = 8;
186 if (lda < MAX(1, n)) info = 6;
188 if (unit < 0) info = 3;
189 if (trans < 0) info = 2;
190 if (uplo < 0) info = 1;
194 BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
204 FUNCTION_PROFILE_START();
206 if (incx < 0 ) x -= (n - 1) * incx * 2;
208 buffer = (FLOAT *)blas_memory_alloc(1);
210 (trsv[(trans<<2) | (uplo<<1) | unit])(n, a, lda, x, incx, buffer);
212 blas_memory_free(buffer);
214 FUNCTION_PROFILE_END(4, n * n / 2 + n, n * n);