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-rw-r--r--gcc/tree-vect-loop.cc12
1 files changed, 10 insertions, 2 deletions
diff --git a/gcc/tree-vect-loop.cc b/gcc/tree-vect-loop.cc
index 1d549e4..df45adb 100644
--- a/gcc/tree-vect-loop.cc
+++ b/gcc/tree-vect-loop.cc
@@ -7177,6 +7177,15 @@ vectorizable_reduction (loop_vec_info loop_vinfo,
tree vectype_out = SLP_TREE_VECTYPE (slp_for_stmt_info);
VECT_REDUC_INFO_VECTYPE (reduc_info) = vectype_out;
+ /* We do not handle mask reductions correctly in the epilogue. */
+ if (VECTOR_BOOLEAN_TYPE_P (vectype_out))
+ {
+ if (dump_enabled_p ())
+ dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,
+ "mask reduction not supported.\n");
+ return false;
+ }
+
gimple_match_op op;
if (!gimple_extract_op (stmt_info->stmt, &op))
gcc_unreachable ();
@@ -7187,8 +7196,7 @@ vectorizable_reduction (loop_vec_info loop_vinfo,
return false;
/* Do not try to vectorize bit-precision reductions. */
- if (!VECTOR_BOOLEAN_TYPE_P (vectype_out)
- && !type_has_mode_precision_p (op.type)
+ if (!type_has_mode_precision_p (op.type)
&& op.code != BIT_AND_EXPR
&& op.code != BIT_IOR_EXPR
&& op.code != BIT_XOR_EXPR)