diff options
| author | Bernd Schmidt <bernds@codesourcery.com> | 2006-09-15 17:02:35 +0000 |
|---|---|---|
| committer | Bernd Schmidt <bernds@codesourcery.com> | 2006-09-15 17:02:35 +0000 |
| commit | c4ae04ceb1e1daf63f1aed9c8b244875f167878d (patch) | |
| tree | e4239aaab32fdf9e15d3aabc1bc3f0ad2e35bf39 /gas | |
| parent | 76052d04e0caac458a79d96c73d9e6f7331dc9b3 (diff) | |
| download | gdb-c4ae04ceb1e1daf63f1aed9c8b244875f167878d.zip gdb-c4ae04ceb1e1daf63f1aed9c8b244875f167878d.tar.gz gdb-c4ae04ceb1e1daf63f1aed9c8b244875f167878d.tar.bz2 | |
* config/bfin-parse.y (binary): Do some more constant folding for
additions.
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/ChangeLog | 5 | ||||
| -rw-r--r-- | gas/config/bfin-parse.y | 27 |
2 files changed, 26 insertions, 6 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index b6c2562..c589c09 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,8 @@ +2006-09-15 Bernd Schmidt <bernd.schmidt@analog.com> + + * config/bfin-parse.y (binary): Do some more constant folding for + additions. + 2006-09-13 Jan Beulich <jbeulich@novell.com> * input-file.c (input_file_give_next_buffer): Demote as_bad to diff --git a/gas/config/bfin-parse.y b/gas/config/bfin-parse.y index 609c282..f74074e 100644 --- a/gas/config/bfin-parse.y +++ b/gas/config/bfin-parse.y @@ -4270,6 +4270,8 @@ value_match (Expr_Node *expr, int sz, int sign, int mul, int issigned) static Expr_Node * binary (Expr_Op_Type op, Expr_Node *x, Expr_Node *y) { + Expr_Node_Value val; + if (x->type == Expr_Node_Constant && y->type == Expr_Node_Constant) { switch (op) @@ -4319,13 +4321,26 @@ binary (Expr_Op_Type op, Expr_Node *x, Expr_Node *y) } return x; } - else + /* Canonicalize order to EXPR OP CONSTANT. */ + if (x->type == Expr_Node_Constant) + { + Expr_Node *t = x; + x = y; + y = t; + } + if (y->type == Expr_Node_Constant && x->type == Expr_Node_Binop + && x->Right_Child->type == Expr_Node_Constant) { - /* Create a new expression structure. */ - Expr_Node_Value val; - val.op_value = op; - return Expr_Node_Create (Expr_Node_Binop, val, x, y); - } + if (op == x->value.op_value && x->value.op_value == Expr_Op_Type_Add) + { + x->Right_Child->value.i_value += y->value.i_value; + return x; + } + } + + /* Create a new expression structure. */ + val.op_value = op; + return Expr_Node_Create (Expr_Node_Binop, val, x, y); } static Expr_Node * |