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Ensure sum from SDA is 16-bit

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From-SVN: r18631
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Michael Meissner 1998-03-16 15:35:24 +00:00 • committed by Michael Meissner
parent e29ef9202e
commit dbf55e5349
2 changed files with 16 additions and 1 deletions
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4
gcc/ChangeLog
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@ -3,6 +3,10 @@ Mon Mar 16 15:57:17 1998 Michael Meissner <meissner@cygnus.com>
* gcc.c (default_arg): Don't wander off the end of allocated
memory.
(From Geoffrey Keating <geoffk@ozemail.com.au>)
* rs6000.c (small_data_operand): Ensure that any address
referenced relative to the small data area is inside the SDA.
Mon Mar 16 12:55:15 1998 Jim Wilson <wilson@cygnus.com>
* config/m68k/netbsd.h (ASM_SPEC): Add %{m68060}.

13
gcc/config/rs6000/rs6000.c
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@ -1080,7 +1080,18 @@ small_data_operand (op, mode)
return 0;
else
sym_ref = XEXP (XEXP (op, 0), 0);
{
rtx sum = XEXP (op, 0);
HOST_WIDE_INT summand;
/* We have to be careful here, because it is the referenced address
that must be 32k from _SDA_BASE_, not just the symbol. */
summand = INTVAL (XEXP (sum, 1));
if (summand < 0 || summand > g_switch_value)
return 0;
sym_ref = XEXP (sum, 0);
}
if (*XSTR (sym_ref, 0) != '@')
return 0;