diff options
Diffstat (limited to 'gcc/tree-vect-loop.c')
| -rw-r--r-- | gcc/tree-vect-loop.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index 5733bc8..abba2b9 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -3305,7 +3305,7 @@ get_initial_def_for_reduction (gimple stmt, tree init_val, enum tree_code code = gimple_assign_rhs_code (stmt); tree def_for_init; tree init_def; - tree t = NULL_TREE; + tree *elts; int i; bool nested_in_vect_loop = false; tree init_value; @@ -3386,23 +3386,31 @@ get_initial_def_for_reduction (gimple stmt, tree init_val, def_for_init = build_int_cst (scalar_type, int_init_val); /* Create a vector of '0' or '1' except the first element. */ + elts = XALLOCAVEC (tree, nunits); for (i = nunits - 2; i >= 0; --i) - t = tree_cons (NULL_TREE, def_for_init, t); + elts[i + 1] = def_for_init; /* Option1: the first element is '0' or '1' as well. */ if (adjustment_def) { - t = tree_cons (NULL_TREE, def_for_init, t); - init_def = build_vector (vectype, t); + elts[0] = def_for_init; + init_def = build_vector (vectype, elts); break; } /* Option2: the first element is INIT_VAL. */ - t = tree_cons (NULL_TREE, init_value, t); + elts[0] = init_val; if (TREE_CONSTANT (init_val)) - init_def = build_vector (vectype, t); + init_def = build_vector (vectype, elts); else - init_def = build_constructor_from_list (vectype, t); + { + VEC(constructor_elt,gc) *v; + v = VEC_alloc (constructor_elt, gc, nunits); + CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, init_val); + for (i = 1; i < nunits; ++i) + CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, elts[i]); + init_def = build_constructor (vectype, v); + } break; |