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PATCH:
- From: Mark Mitchell <mark at codesourcery dot com>
- To: binutils at sources dot redhat dot com
- Date: Tue, 10 Aug 2004 16:44:25 -0700
- Subject: PATCH:
- Reply-to: mark at codesourcery dot com
In a 32-bit->64-bit cross compilation environment, GCC may emit 8-byte
integer literals as signed values. However, GAS does not handle "-"
applied to a bignum, so the assembler will fail to assemble such
files. This patch adds support for applying "~", "-", and "!" to
bignums in GAS.
OK to apply?
--
Mark Mitchell
CodeSourcery, LLC
mark@codesourcery.com
2004-08-10 Mark Mitchell <mark@codesourcery.com>
* expr.c (operand): Handle the "~", "-", and "!" operators applied
to bignums.
Index: gas/expr.c
===================================================================
RCS file: /cvs/src/src/gas/expr.c,v
retrieving revision 1.51
diff -c -5 -p -r1.51 expr.c
*** gas/expr.c 23 May 2004 04:35:11 -0000 1.51
--- gas/expr.c 10 Aug 2004 23:39:39 -0000
*************** operand (expressionS *expressionP)
*** 1074,1083 ****
--- 1074,1112 ----
if (generic_floating_point_number.sign == '+')
generic_floating_point_number.sign = '-';
else
generic_floating_point_number.sign = 'N';
}
+ else if (expressionP->X_op == O_big
+ && expressionP->X_add_number > 0)
+ {
+ int i;
+
+ if (c == '~' || c == '-')
+ {
+ for (i = 0; i < expressionP->X_add_number; ++i)
+ generic_bignum[i] = ~generic_bignum[i];
+ if (c == '-')
+ for (i = 0; i < expressionP->X_add_number; ++i)
+ {
+ generic_bignum[i] += 1;
+ if (generic_bignum[i])
+ break;
+ }
+ }
+ else if (c == '!')
+ {
+ int nonzero = 0;
+ for (i = 0; i < expressionP->X_add_number; ++i)
+ {
+ if (generic_bignum[i])
+ nonzero = 1;
+ generic_bignum[i] = 0;
+ }
+ generic_bignum[0] = nonzero;
+ }
+ }
else if (expressionP->X_op != O_illegal
&& expressionP->X_op != O_absent)
{
expressionP->X_add_symbol = make_expr_symbol (expressionP);
if (c == '-')