diff options
Diffstat (limited to 'gcc/gimple.c')
| -rw-r--r-- | gcc/gimple.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/gcc/gimple.c b/gcc/gimple.c index ce1f75a..aab6ef2 100644 --- a/gcc/gimple.c +++ b/gcc/gimple.c @@ -1324,11 +1324,15 @@ walk_gimple_op (gimple stmt, walk_tree_fn callback_op, switch (gimple_code (stmt)) { case GIMPLE_ASSIGN: - /* Walk the RHS operands. A formal temporary LHS may use a - COMPONENT_REF RHS. */ + /* Walk the RHS operands. If the LHS is of a non-renamable type or + is a register variable, we may use a COMPONENT_REF on the RHS. */ if (wi) - wi->val_only = !is_gimple_reg (gimple_assign_lhs (stmt)) - || !gimple_assign_single_p (stmt); + { + tree lhs = gimple_assign_lhs (stmt); + wi->val_only + = (is_gimple_reg_type (TREE_TYPE (lhs)) && !is_gimple_reg (lhs)) + || !gimple_assign_single_p (stmt); + } for (i = 1; i < gimple_num_ops (stmt); i++) { |