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authorRichard Biener <rguenther@suse.de>2018-06-29 09:49:14 +0000
committerRichard Biener <rguenth@gcc.gnu.org>2018-06-29 09:49:14 +0000
commitc2fd033cdf1876ff4ec91c747c6fc569de19b322 (patch)
treef78350f5786574a3f861377ab7a26d226f41845f /gcc/tree-vect-loop.c
parent135101526e13c156567fe99256600914467a5f21 (diff)
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tree-vect-data-refs.c (vect_analyze_data_ref_dependences): Assert compute_all_dependences succeeds.
2018-06-29 Richard Biener <rguenther@suse.de> * tree-vect-data-refs.c (vect_analyze_data_ref_dependences): Assert compute_all_dependences succeeds. * tree-vect-loop.c (vect_get_datarefs_in_loop): Fail early if we exceed --param loop-max-datarefs-for-datadeps. From-SVN: r262244
Diffstat (limited to 'gcc/tree-vect-loop.c')
-rw-r--r--gcc/tree-vect-loop.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c
index ab76be0..8741e0b 100644
--- a/gcc/tree-vect-loop.c
+++ b/gcc/tree-vect-loop.c
@@ -1812,6 +1812,11 @@ vect_get_datarefs_in_loop (loop_p loop, basic_block *bbs,
}
return false;
}
+ /* If dependence analysis will give up due to the limit on the
+ number of datarefs stop here and fail fatally. */
+ if (datarefs->length ()
+ > (unsigned)PARAM_VALUE (PARAM_LOOP_MAX_DATAREFS_FOR_DATADEPS))
+ return false;
}
return true;
}