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Fix parsing of multi-char operators.

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This commit is contained in:
Alan Modra
2001-02-13 11:13:53 +00:00
parent df8634e34b
commit 6fad6acb13
2 changed files with 23 additions and 14 deletions
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31
gas/expr.c
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@@ -41,7 +41,7 @@ static void mri_char_constant PARAMS ((expressionS *));
static void current_location PARAMS ((expressionS *));
static void clean_up_expression PARAMS ((expressionS * expressionP));
static segT operand PARAMS ((expressionS *));
static operatorT operator PARAMS ((void));
static operatorT operator PARAMS ((int *));
extern const char EXP_CHARS[], FLT_CHARS[];
@@ -1552,17 +1552,19 @@ expr_begin ()
}
}
/* Return the encoding for the operator at INPUT_LINE_POINTER.
Advance INPUT_LINE_POINTER to the last character in the operator
(i.e., don't change it for a single character operator). */
/* Return the encoding for the operator at INPUT_LINE_POINTER, and
sets NUM_CHARS to the number of characters in the operator.
Does not advance INPUT_LINE_POINTER. */
static inline operatorT
operator ()
operator (num_chars)
int *num_chars;
{
int c;
operatorT ret;
c = *input_line_pointer & 0xff;
*num_chars = 1;
if (is_end_of_line[c])
return O_illegal;
@@ -1587,14 +1589,14 @@ operator ()
ret = O_le;
break;
}
++input_line_pointer;
*num_chars = 2;
return ret;
case '=':
if (input_line_pointer[1] != '=')
return op_encoding[c];
++input_line_pointer;
*num_chars = 2;
return O_eq;
case '>':
@@ -1609,7 +1611,7 @@ operator ()
ret = O_ge;
break;
}
++input_line_pointer;
*num_chars = 2;
return ret;
case '!':
@@ -1620,21 +1622,21 @@ operator ()
return O_bit_inclusive_or;
return op_encoding[c];
}
++input_line_pointer;
*num_chars = 2;
return O_bit_exclusive_or;
case '|':
if (input_line_pointer[1] != '|')
return op_encoding[c];
++input_line_pointer;
*num_chars = 2;
return O_logical_or;
case '&':
if (input_line_pointer[1] != '&')
return op_encoding[c];
++input_line_pointer;
*num_chars = 2;
return O_logical_and;
}
@@ -1653,6 +1655,7 @@ expr (rankarg, resultP)
expressionS right;
operatorT op_left;
operatorT op_right;
int op_chars;
know (rank >= 0);
@@ -1661,12 +1664,12 @@ expr (rankarg, resultP)
/* operand () gobbles spaces. */
know (*input_line_pointer != ' ');
op_left = operator ();
op_left = operator (&op_chars);
while (op_left != O_illegal && op_rank[(int) op_left] > rank)
{
segT rightseg;
input_line_pointer++; /* -> after 1st character of operator. */
input_line_pointer += op_chars; /* -> after operator. */
rightseg = expr (op_rank[(int) op_left], &right);
if (right.X_op == O_absent)
@@ -1706,7 +1709,7 @@ expr (rankarg, resultP)
)
as_bad (_("operation combines symbols in different segments"));
op_right = operator ();
op_right = operator (&op_chars);
know (op_right == O_illegal
|| op_rank[(int) op_right] <= op_rank[(int) op_left]);