Mercurial > hg > CbC > CbC_gcc
annotate gcc/lambda-trans.c @ 63:b7f97abdc517 gcc-4.6-20100522
update gcc from gcc-4.5.0 to gcc-4.6
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 24 May 2010 12:47:05 +0900 |
| parents | 77e2b8dfacca |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* Lambda matrix transformations. |
| 2 Copyright (C) 2003, 2004, 2007, 2008 Free Software Foundation, Inc. | |
| 3 Contributed by Daniel Berlin <dberlin@dberlin.org>. | |
| 4 | |
| 5 This file is part of GCC. | |
| 6 | |
| 7 GCC is free software; you can redistribute it and/or modify it under | |
| 8 the terms of the GNU General Public License as published by the Free | |
| 9 Software Foundation; either version 3, or (at your option) any later | |
| 10 version. | |
| 11 | |
| 12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 18 along with GCC; see the file COPYING3. If not see | |
| 19 <http://www.gnu.org/licenses/>. */ | |
| 20 | |
| 21 #include "config.h" | |
| 22 #include "system.h" | |
| 23 #include "coretypes.h" | |
| 24 #include "tm.h" | |
| 25 #include "ggc.h" | |
| 26 #include "tree.h" | |
| 27 #include "target.h" | |
| 28 #include "tree-flow.h" | |
| 29 #include "lambda.h" | |
| 30 | |
| 31 /* Allocate a new transformation matrix. */ | |
| 32 | |
| 33 lambda_trans_matrix | |
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63
b7f97abdc517
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ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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diff
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34 lambda_trans_matrix_new (int colsize, int rowsize, |
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b7f97abdc517
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parents:
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35 struct obstack * lambda_obstack) |
| 0 | 36 { |
| 37 lambda_trans_matrix ret; | |
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38 |
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parents:
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39 ret = (lambda_trans_matrix) |
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parents:
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40 obstack_alloc (lambda_obstack, sizeof (struct lambda_trans_matrix_s)); |
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parents:
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41 LTM_MATRIX (ret) = lambda_matrix_new (rowsize, colsize, lambda_obstack); |
| 0 | 42 LTM_ROWSIZE (ret) = rowsize; |
| 43 LTM_COLSIZE (ret) = colsize; | |
| 44 LTM_DENOMINATOR (ret) = 1; | |
| 45 return ret; | |
| 46 } | |
| 47 | |
| 48 /* Return true if MAT is an identity matrix. */ | |
| 49 | |
| 50 bool | |
| 51 lambda_trans_matrix_id_p (lambda_trans_matrix mat) | |
| 52 { | |
| 53 if (LTM_ROWSIZE (mat) != LTM_COLSIZE (mat)) | |
| 54 return false; | |
| 55 return lambda_matrix_id_p (LTM_MATRIX (mat), LTM_ROWSIZE (mat)); | |
| 56 } | |
| 57 | |
| 58 | |
| 59 /* Compute the inverse of the transformation matrix MAT. */ | |
| 60 | |
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61 lambda_trans_matrix |
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62 lambda_trans_matrix_inverse (lambda_trans_matrix mat, |
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parents:
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63 struct obstack * lambda_obstack) |
| 0 | 64 { |
| 65 lambda_trans_matrix inverse; | |
| 66 int determinant; | |
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67 |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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68 inverse = lambda_trans_matrix_new (LTM_ROWSIZE (mat), LTM_COLSIZE (mat), |
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parents:
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69 lambda_obstack); |
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ryoma <e075725@ie.u-ryukyu.ac.jp>
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70 determinant = lambda_matrix_inverse (LTM_MATRIX (mat), LTM_MATRIX (inverse), |
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parents:
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diff
changeset
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71 LTM_ROWSIZE (mat), lambda_obstack); |
| 0 | 72 LTM_DENOMINATOR (inverse) = determinant; |
| 73 return inverse; | |
| 74 } | |
| 75 | |
| 76 | |
| 77 /* Print out a transformation matrix. */ | |
| 78 | |
| 79 void | |
| 80 print_lambda_trans_matrix (FILE *outfile, lambda_trans_matrix mat) | |
| 81 { | |
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82 print_lambda_matrix (outfile, LTM_MATRIX (mat), LTM_ROWSIZE (mat), |
| 0 | 83 LTM_COLSIZE (mat)); |
| 84 } |