void
propagate_tree_value_into_stmt (gimple_stmt_iterator *gsi, tree val)
{
gimple stmt = gsi_stmt (*gsi);
if (is_gimple_assign (stmt))
{
tree expr = NULL_TREE;
if (gimple_assign_single_p (stmt))
expr = gimple_assign_rhs1 (stmt);
propagate_tree_value (&expr, val);
gimple_assign_set_rhs_from_tree (gsi, expr);
stmt = gsi_stmt (*gsi);
}
else if (gimple_code (stmt) == GIMPLE_COND)
{
tree lhs = NULL_TREE;
tree rhs = fold_convert (TREE_TYPE (val), integer_zero_node);
propagate_tree_value (&lhs, val);
gimple_cond_set_code (stmt, NE_EXPR);
gimple_cond_set_lhs (stmt, lhs);
gimple_cond_set_rhs (stmt, rhs);
}
else if (is_gimple_call (stmt)
&& gimple_call_lhs (stmt) != NULL_TREE)
{
gimple new_stmt;
tree expr = NULL_TREE;
propagate_tree_value (&expr, val);
new_stmt = gimple_build_assign (gimple_call_lhs (stmt), expr);
copy_virtual_operands (new_stmt, stmt);
move_ssa_defining_stmt_for_defs (new_stmt, stmt);
gsi_replace (gsi, new_stmt, false);
}
else if (gimple_code (stmt) == GIMPLE_SWITCH)
propagate_tree_value (gimple_switch_index_ptr (stmt), val);
else
gcc_unreachable ();
}
void
propagate_tree_value_into_stmt (gimple_stmt_iterator *gsi, tree val)
{
gimple stmt = gsi_stmt (*gsi);
if (is_gimple_assign (stmt))
{
tree expr = NULL_TREE;
if (gimple_assign_single_p (stmt))
expr = gimple_assign_rhs1 (stmt);
propagate_tree_value (&expr, val);
gimple_assign_set_rhs_from_tree (gsi, expr);
}
else if (gimple_code (stmt) == GIMPLE_COND)
{
tree lhs = NULL_TREE;
tree rhs = build_zero_cst (TREE_TYPE (val));
propagate_tree_value (&lhs, val);
gimple_cond_set_code (stmt, NE_EXPR);
gimple_cond_set_lhs (stmt, lhs);
gimple_cond_set_rhs (stmt, rhs);
}
else if (is_gimple_call (stmt)
&& gimple_call_lhs (stmt) != NULL_TREE)
{
tree expr = NULL_TREE;
bool res;
propagate_tree_value (&expr, val);
res = update_call_from_tree (gsi, expr);
gcc_assert (res);
}
else if (gimple_code (stmt) == GIMPLE_SWITCH)
propagate_tree_value (gimple_switch_index_ptr (stmt), val);
else
gcc_unreachable ();
}
