diff options
Diffstat (limited to 'gcc/lambda.h')
| -rw-r--r-- | gcc/lambda.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/gcc/lambda.h b/gcc/lambda.h index 66fbac74bd5..2d321fbab6d 100644 --- a/gcc/lambda.h +++ b/gcc/lambda.h @@ -39,6 +39,9 @@ DEF_VEC_ALLOC_P (lambda_vector_vec_p, heap); all vectors are the same length). */ typedef lambda_vector *lambda_matrix; +DEF_VEC_P (lambda_matrix); +DEF_VEC_ALLOC_P (lambda_matrix, heap); + /* A transformation matrix, which is a self-contained ROWSIZE x COLSIZE matrix. Rather than use floats, we simply keep a single DENOMINATOR that represents the denominator for every element in the matrix. */ @@ -213,6 +216,7 @@ void lambda_loopnest_to_gcc_loopnest (struct loop *, lambda_loopnest, lambda_trans_matrix, struct obstack *); void remove_iv (gimple); +tree find_induction_var_from_exit_cond (struct loop *); static inline void lambda_vector_negate (lambda_vector, lambda_vector, int); static inline void lambda_vector_mult_const (lambda_vector, lambda_vector, int, int); @@ -374,6 +378,33 @@ lambda_vector_matrix_mult (lambda_vector vect, int m, lambda_matrix mat, dest[i] += mat[j][i] * vect[j]; } +/* Compare two vectors returning an integer less than, equal to, or + greater than zero if the first argument is considered to be respectively + less than, equal to, or greater than the second. + We use the lexicographic order. */ + +static inline int +lambda_vector_compare (lambda_vector vec1, int length1, lambda_vector vec2, + int length2) +{ + int min_length; + int i; + + if (length1 < length2) + min_length = length1; + else + min_length = length2; + + for (i = 0; i < min_length; i++) + if (vec1[i] < vec2[i]) + return -1; + else if (vec1[i] > vec2[i]) + return 1; + else + continue; + + return length1 - length2; +} /* Print out a vector VEC of length N to OUTFILE. */ |