/* expr.c -operands, expressions-
Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004, 2005
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
(It also gives smaller files to re-compile.)
Here, "operand"s are of expressions, not instructions. */
-#include <string.h>
#define min(a, b) ((a) < (b) ? (a) : (b))
#include "as.h"
case '-':
case '+':
{
- /* Do not accept ++e or --e as +(+e) or -(-e)
- Disabled, since the preprocessor removes whitespace. */
- if (0 && (c == '-' || c == '+') && *input_line_pointer == c)
- goto target_op;
-
operand (expressionP, mode);
if (expressionP->X_op == O_constant)
{
}
else
{
- target_op:
/* Let the target try to parse it. Success is indicated by changing
the X_op field to something other than O_absent and pointing
input_line_pointer past the expression. If it can't parse the
case '+':
case '-':
- /* Do not allow a++b and a--b to be a + (+b) and a - (-b)
- Disabled, since the preprocessor removes whitespace. */
- if (1 || input_line_pointer[1] != c)
- return op_encoding[c];
- return O_illegal;
+ return op_encoding[c];
case '<':
switch (input_line_pointer[1])
while (op_left != O_illegal && op_rank[(int) op_left] > rank)
{
segT rightseg;
+ bfd_vma frag_off;
input_line_pointer += op_chars; /* -> after operator. */
else if (op_left == O_subtract
&& right.X_op == O_symbol
&& resultP->X_op == O_symbol
- && (symbol_get_frag (right.X_add_symbol)
- == symbol_get_frag (resultP->X_add_symbol))
+ && retval == rightseg
&& (SEG_NORMAL (rightseg)
- || right.X_add_symbol == resultP->X_add_symbol))
+ || right.X_add_symbol == resultP->X_add_symbol)
+ && frag_offset_fixed_p (symbol_get_frag (resultP->X_add_symbol),
+ symbol_get_frag (right.X_add_symbol),
+ &frag_off))
{
resultP->X_add_number -= right.X_add_number;
+ resultP->X_add_number -= frag_off / OCTETS_PER_BYTE;
resultP->X_add_number += (S_GET_VALUE (resultP->X_add_symbol)
- S_GET_VALUE (right.X_add_symbol));
resultP->X_op = O_constant;
valueT left, right;
segT seg_left, seg_right;
fragS *frag_left, *frag_right;
+ bfd_vma frag_off;
switch (op)
{
on the input value.
Otherwise, both operands must be absolute. We already handled
the case of addition or subtraction of a constant above. */
+ frag_off = 0;
if (!(seg_left == absolute_section
&& seg_right == absolute_section)
&& !(op == O_eq || op == O_ne)
&& !((op == O_subtract
|| op == O_lt || op == O_le || op == O_ge || op == O_gt)
&& seg_left == seg_right
- && (finalize_syms || frag_left == frag_right)
+ && (finalize_syms
+ || frag_offset_fixed_p (frag_left, frag_right, &frag_off))
&& (seg_left != reg_section || left == right)
&& (seg_left != undefined_section || add_symbol == op_symbol)))
{
return 0;
}
+ right += frag_off / OCTETS_PER_BYTE;
switch (op)
{
case O_add: left += right; break;