[PATCH 2/3] x86: drop cpu_arch_tune_flags

[Jan Beulich <jbeulich@suse.com>]

Apparently from its introduction the variable was only ever written (the
only read is merely to determine whether to write it with another value).
(Since, due to the need to re-indent, the adjacent lines setting
cpu_arch_tune need touching anyway, switch to using PREOCESSOR_*
constants where applicable, to make more obvious what the resulting
state is going to be.)

--- a/gas/config/tc-i386.c
+++ b/gas/config/tc-i386.c
@@ -816,9 +816,6 @@ static int cpu_arch_tune_set = 0;
 /* Cpu we are generating instructions for.  */
 enum processor_type cpu_arch_tune = PROCESSOR_UNKNOWN;
 
-/* CPU feature flags of cpu we are generating instructions for.  */
-static i386_cpu_flags cpu_arch_tune_flags;
-
 /* CPU instruction set architecture used.  */
 enum processor_type cpu_arch_isa = PROCESSOR_UNKNOWN;
 
@@ -2955,10 +2952,7 @@ set_cpu_arch (int dummy ATTRIBUTE_UNUSED
 	  cpu_arch_isa = PROCESSOR_UNKNOWN;
 	  cpu_arch_isa_flags = cpu_arch[flag_code == CODE_64BIT].enable;
 	  if (!cpu_arch_tune_set)
-	    {
-	      cpu_arch_tune = cpu_arch_isa;
-	      cpu_arch_tune_flags = cpu_arch_isa_flags;
-	    }
+	    cpu_arch_tune = PROCESSOR_UNKNOWN;
 
 	  vector_size = VSZ_DEFAULT;
 
@@ -3000,10 +2994,7 @@ set_cpu_arch (int dummy ATTRIBUTE_UNUSED
 	      cpu_arch_isa = cpu_arch[j].type;
 	      cpu_arch_isa_flags = cpu_arch[j].enable;
 	      if (!cpu_arch_tune_set)
-		{
-		  cpu_arch_tune = cpu_arch_isa;
-		  cpu_arch_tune_flags = cpu_arch_isa_flags;
-		}
+		cpu_arch_tune = cpu_arch_isa;
 
 	      vector_size = VSZ_DEFAULT;
 
@@ -14597,10 +14588,7 @@ md_parse_option (int c, const char *arg)
 		  cpu_arch_isa = cpu_arch[j].type;
 		  cpu_arch_isa_flags = cpu_arch[j].enable;
 		  if (!cpu_arch_tune_set)
-		    {
-		      cpu_arch_tune = cpu_arch_isa;
-		      cpu_arch_tune_flags = cpu_arch_isa_flags;
-		    }
+		    cpu_arch_tune = cpu_arch_isa;
 		  vector_size = VSZ_DEFAULT;
 		  break;
 		}
@@ -14678,7 +14666,6 @@ md_parse_option (int c, const char *arg)
 	    {
 	      cpu_arch_tune_set = 1;
 	      cpu_arch_tune = cpu_arch [j].type;
-	      cpu_arch_tune_flags = cpu_arch[j].enable;
 	      break;
 	    }
 	}
@@ -15284,10 +15271,7 @@ i386_target_format (void)
 	  cpu_arch_isa = PROCESSOR_IAMCU;
 	  cpu_arch_isa_flags = iamcu_flags;
 	  if (!cpu_arch_tune_set)
-	    {
-	      cpu_arch_tune = cpu_arch_isa;
-	      cpu_arch_tune_flags = cpu_arch_isa_flags;
-	    }
+	    cpu_arch_tune = PROCESSOR_IAMCU;
 	}
       else if (cpu_arch_isa != PROCESSOR_IAMCU)
 	as_fatal (_("Intel MCU doesn't support `%s' architecture"),
@@ -15298,8 +15282,6 @@ i386_target_format (void)
 
   if (cpu_flags_all_zero (&cpu_arch_isa_flags))
     cpu_arch_isa_flags = cpu_arch[flag_code == CODE_64BIT].enable;
-  if (cpu_flags_all_zero (&cpu_arch_tune_flags))
-    cpu_arch_tune_flags = cpu_arch[flag_code == CODE_64BIT].enable;
 
   switch (OUTPUT_FLAVOR)
     {