unwind-ia64.c (alloc_spill_area): Fix offset.

	* config/ia64/unwind-ia64.c (alloc_spill_area): Fix offset.
	(desc_frgr_mem): Fix reference to f16-f31.

From-SVN: r51679

gcc/ChangeLog

+2002-03-31  Richard Henderson  <rth@redhat.com>
+
+	* config/ia64/unwind-ia64.c (alloc_spill_area): Fix offset.
+	(desc_frgr_mem): Fix reference to f16-f31.
+
 2002-03-31  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
 	* rtl.h (RTL_CHECK1, RTL_CHECK2, RTL_CHECKC1, RTL_CHECKC2,

gcc/config/ia64/unwind-ia64.c

@@ -342,8 +342,8 @@ alloc_spill_area (unsigned long *offp, unsigned long regsize,
       if (reg->where == UNW_WHERE_SPILL_HOME)
 	{
 	  reg->where = UNW_WHERE_PSPREL;
-	  reg->val = 0x10 - *offp;
-	  *offp += regsize;
+	  *offp -= regsize;
+	  reg->val = *offp;
 	}
     }
 }
@@ -541,7 +541,8 @@ desc_frgr_mem (unsigned char grmask, unw_word frmask,
     {
       if ((frmask & 1) != 0)
 	{
-	  set_reg (sr->curr.reg + UNW_REG_F2 + i, UNW_WHERE_SPILL_HOME,
+	  enum unw_register_index base = i < 4 ? UNW_REG_F2 : UNW_REG_F16 - 4;
+	  set_reg (sr->curr.reg + base + i, UNW_WHERE_SPILL_HOME,
 		   sr->region_start + sr->region_len - 1, 0);
 	  sr->any_spills = 1;
 	}