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| author | Sebastian Pop <pop@cri.ensmp.fr> | 2005-08-23 10:24:20 +0200 |
|---|---|---|
| committer | Sebastian Pop <spop@gcc.gnu.org> | 2005-08-23 08:24:20 +0000 |
| commit | 37b8a73b503a6d664904f511618b71ca37b3f6c0 (patch) | |
| tree | 519608c83e01fb34fcdea8849d3554eaca59bf38 /gcc/lambda.h | |
| parent | ce8f9416becbb4a98583e9cbd16a281b70a68938 (diff) | |
| download | gcc-37b8a73b503a6d664904f511618b71ca37b3f6c0.zip gcc-37b8a73b503a6d664904f511618b71ca37b3f6c0.tar.gz gcc-37b8a73b503a6d664904f511618b71ca37b3f6c0.tar.bz2 | |
lambda-code.c (lambda_vector_lexico_pos): Moved...
* lambda-code.c (lambda_vector_lexico_pos): Moved...
* lambda.h (lambda_vector_lexico_pos): ... here.
* tree-data-ref.c (build_classic_dist_vector): Return false when
the distance vector is lexicographically negative.
From-SVN: r103392
Diffstat (limited to 'gcc/lambda.h')
| -rw-r--r-- | gcc/lambda.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/lambda.h b/gcc/lambda.h index dea12ef..9855b6f 100644 --- a/gcc/lambda.h +++ b/gcc/lambda.h @@ -376,5 +376,26 @@ print_lambda_vector (FILE * outfile, lambda_vector vector, int n) fprintf (outfile, "%3d ", vector[i]); fprintf (outfile, "\n"); } + +/* Returns true when the vector V is lexicographically positive, in + other words, when the first nonzero element is positive. */ + +static inline bool +lambda_vector_lexico_pos (lambda_vector v, + unsigned n) +{ + unsigned i; + for (i = 0; i < n; i++) + { + if (v[i] == 0) + continue; + if (v[i] < 0) + return false; + if (v[i] > 0) + return true; + } + return true; +} + #endif /* LAMBDA_H */ |