The following avoids leaving slp_def as passed to vect_is_simple_use by reference uninitialized.
Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed. 2020-07-03 Richard Biener <rguent...@suse.de> PR tree-optimization/96037 * tree-vect-stmts.c (vect_is_simple_use): Initialize *slp_def. --- gcc/tree-vect-stmts.c | 1 + 1 file changed, 1 insertion(+) diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c index d68547ed1b5..9fa8854028b 100644 --- a/gcc/tree-vect-stmts.c +++ b/gcc/tree-vect-stmts.c @@ -11259,6 +11259,7 @@ vect_is_simple_use (vec_info *vinfo, stmt_vec_info stmt, slp_tree slp_node, } else { + *slp_def = NULL; if (gassign *ass = dyn_cast <gassign *> (stmt->stmt)) { if (gimple_assign_rhs_code (ass) == COND_EXPR -- 2.25.1