Remove restriction of SLP vectorizing internal function calls

We already checked for unsupported internal throwing calls,
general nothrow is not required.

2021-10-21  Richard Biener  <rguenther@suse.de>

	* tree-vect-slp.c (vect_build_slp_tree_1): Remove
	superfluous gimple_call_nothrow_p check.

diff --git a/gcc/tree-vect-slp.c b/gcc/tree-vect-slp.c
index 709bcb6..eff4640 100644 (file)
--- a/gcc/tree-vect-slp.c
+++ b/gcc/tree-vect-slp.c
@@ -975,7 +975,6 @@ vect_build_slp_tree_1 (vec_info *vinfo, unsigned char *swap,
                        (gimple_call_internal_fn (call_stmt))))
                   || gimple_call_tail_p (call_stmt)
                   || gimple_call_noreturn_p (call_stmt)
-                  || !gimple_call_nothrow_p (call_stmt)
                   || gimple_call_chain (call_stmt))
            {
              if (dump_enabled_p ())