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[Bug tree-optimization/43436] Missed vectorization: "unhandled data-ref"
- From: "spop at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 28 Mar 2010 16:28:32 -0000
- Subject: [Bug tree-optimization/43436] Missed vectorization: "unhandled data-ref"
- References: <bug-43436-7780@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from spop at gcc dot gnu dot org 2010-03-28 16:28 -------
What about fixing the diagnostic message like this:
diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c
index 37ae9b5..44248b3 100644
--- a/gcc/tree-vect-data-refs.c
+++ b/gcc/tree-vect-data-refs.c
@@ -1866,10 +1866,21 @@ vect_analyze_data_refs (loop_vec_info loop_vinfo,
bb_vec_info bb_vinfo)
if (loop_vinfo)
{
+ bool res;
+
loop = LOOP_VINFO_LOOP (loop_vinfo);
- compute_data_dependences_for_loop (loop, true,
- &LOOP_VINFO_DATAREFS (loop_vinfo),
- &LOOP_VINFO_DDRS (loop_vinfo));
+ res = compute_data_dependences_for_loop
+ (loop, true, &LOOP_VINFO_DATAREFS (loop_vinfo),
+ &LOOP_VINFO_DDRS (loop_vinfo));
+
+ if (!res)
+ {
+ if (vect_print_dump_info (REPORT_UNVECTORIZED_LOCATIONS))
+ fprintf (vect_dump, "not vectorized: loop contains function calls"
+ " or data references that cannot be analyzed");
+ return false;
+ }
+
datarefs = LOOP_VINFO_DATAREFS (loop_vinfo);
}
else
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43436