diff options
Diffstat (limited to 'gas/config/bfin-parse.y')
| -rw-r--r-- | gas/config/bfin-parse.y | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gas/config/bfin-parse.y b/gas/config/bfin-parse.y index f74074e..b3416aa 100644 --- a/gas/config/bfin-parse.y +++ b/gas/config/bfin-parse.y @@ -4328,6 +4328,12 @@ binary (Expr_Op_Type op, Expr_Node *x, Expr_Node *y) x = y; y = t; } + /* Canonicalize subtraction of const to addition of negated const. */ + if (op == Expr_Op_Type_Sub && y->type == Expr_Node_Constant) + { + op = Expr_Op_Type_Add; + y->value.i_value = -y->value.i_value; + } if (y->type == Expr_Node_Constant && x->type == Expr_Node_Binop && x->Right_Child->type == Expr_Node_Constant) { |