diff options
Diffstat (limited to 'gas/doc')
| -rw-r--r-- | gas/doc/internals.texi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gas/doc/internals.texi b/gas/doc/internals.texi index 56f10fd..3eea25b 100644 --- a/gas/doc/internals.texi +++ b/gas/doc/internals.texi @@ -1047,6 +1047,14 @@ pointer, for any expression that can not be recognized. When the function is called, @code{input_line_pointer} will point to the start of the expression. +@item md_optimize_expr +@cindex md_optimize_expr +GAS will call this function before trying to carry out certain operations, +like the adding of two constants. The function is passed the left-hand +operand, an @code{expressionS} pointer, the operator, an @code{operatorT} +value, and the right-hand operand, again an @code{expressionS} pointer. For +unary expressions NULL is passed as first argument. + @item md_register_arithmetic @cindex md_register_arithmetic If this macro is defined and evaluates to zero then GAS will not fold |