+2016-03-07 Richard Biener <rguenther@suse.de>
+
+ PR tree-optimization/70115
+ * tree-ssa-loop-ivcanon.c (propagate_into_all_uses): Remove.
+ (propagate_constants_for_unrolling): Use replace_uses_by.
+
2016-03-07 Nathan Sidwell <nathan@codesourcery.com>
PR middle-end/69916
return 0;
}
-/* Propagate VAL into all uses of SSA_NAME. */
-
-static void
-propagate_into_all_uses (tree ssa_name, tree val)
-{
- imm_use_iterator iter;
- gimple *use_stmt;
-
- FOR_EACH_IMM_USE_STMT (use_stmt, iter, ssa_name)
- {
- gimple_stmt_iterator use_stmt_gsi = gsi_for_stmt (use_stmt);
- use_operand_p use;
-
- FOR_EACH_IMM_USE_ON_STMT (use, iter)
- SET_USE (use, val);
-
- if (is_gimple_assign (use_stmt)
- && get_gimple_rhs_class (gimple_assign_rhs_code (use_stmt))
- == GIMPLE_SINGLE_RHS)
- {
- tree rhs = gimple_assign_rhs1 (use_stmt);
-
- if (TREE_CODE (rhs) == ADDR_EXPR)
- recompute_tree_invariant_for_addr_expr (rhs);
- }
-
- fold_stmt_inplace (&use_stmt_gsi);
- update_stmt (use_stmt);
- maybe_clean_or_replace_eh_stmt (use_stmt, use_stmt);
- }
-}
-
/* Propagate constant SSA_NAMEs defined in basic block BB. */
static void
&& gimple_phi_num_args (phi) == 1
&& TREE_CODE (arg) == INTEGER_CST)
{
- propagate_into_all_uses (result, arg);
+ replace_uses_by (result, arg);
gsi_remove (&gsi, true);
release_ssa_name (result);
}
&& (lhs = gimple_assign_lhs (stmt), TREE_CODE (lhs) == SSA_NAME)
&& !SSA_NAME_OCCURS_IN_ABNORMAL_PHI (lhs))
{
- propagate_into_all_uses (lhs, gimple_assign_rhs1 (stmt));
+ replace_uses_by (lhs, gimple_assign_rhs1 (stmt));
gsi_remove (&gsi, true);
release_ssa_name (lhs);
}