procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

lambda-code.c (lambda_transform_legal_p): Handle the case of no dependences in the dependence_relations vector.

Browse source 
2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>

	* lambda-code.c (lambda_transform_legal_p): Handle the case of
	no dependences in the dependence_relations vector.

From-SVN: r131577
This commit is contained in:
Sebastian Pop 2008-01-16 19:26:26 +00:00 • committed by Sebastian Pop
parent a03c6d64f4
commit d49c149d62
2 changed files with 12 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
gcc/ChangeLog
View file

@ -1,3 +1,8 @@
2008-01-16 Sebastian Pop <sebastian.pop@amd.com>
* lambda-code.c (lambda_transform_legal_p): Handle the case of
no dependences in the dependence_relations vector.
2008-01-16 Jan Hubicka <jh@suse.cz>
PR rtl-optimization/31396

9
gcc/lambda-code.c
View file

@ -2595,11 +2595,16 @@ lambda_transform_legal_p (lambda_trans_matrix trans,
gcc_assert (LTM_COLSIZE (trans) == nb_loops
&& LTM_ROWSIZE (trans) == nb_loops);
/* When there is an unknown relation in the dependence_relations, we
know that it is no worth looking at this loop nest: give up. */
/* When there are no dependences, the transformation is correct. */
if (VEC_length (ddr_p, dependence_relations) == 0)
return true;
ddr = VEC_index (ddr_p, dependence_relations, 0);
if (ddr == NULL)
return true;
/* When there is an unknown relation in the dependence_relations, we
know that it is no worth looking at this loop nest: give up. */
if (DDR_ARE_DEPENDENT (ddr) == chrec_dont_know)
return false;