[PATCH] x86: adjust which Dwarf2 register numbers to use

[Jan Beulich]

Consumers can't know which execution mode is in effect for a certain
piece of code; they can only go from object file properties. Hence which
register numbers to encode ought to depend solely on object file type.

--- a/gas/config/tc-i386.c
+++ b/gas/config/tc-i386.c
@@ -5409,7 +5409,7 @@ ginsn_dw2_regnum (const reg_entry *ireg)
   if (ireg->reg_num == RegIP || ireg->reg_num == RegIZ)
     return GINSN_DW2_REGNUM_RSI_DUMMY;
 
-  dwarf_reg = ireg->dw2_regnum[flag_code >> 1];
+  dwarf_reg = ireg->dw2_regnum[object_64bit];
 
   if (dwarf_reg == Dw2Inval)
     {
@@ -17461,7 +17461,7 @@ tc_x86_parse_to_dw2regnum (expressionS *
       if ((addressT) exp->X_add_number < i386_regtab_size)
 	{
 	  exp->X_add_number = i386_regtab[exp->X_add_number]
-			      .dw2_regnum[flag_code >> 1];
+			      .dw2_regnum[object_64bit];
 	  if (exp->X_add_number != Dw2Inval)
 	    exp->X_op = O_constant;
 	}