gas/

2004-11-23 Jan Beulich <jbeulich@novell.com>

	* config/tc-i386.h (CpuMMX2): Declare. Artificial classifier to
	indicate the MMX extensions added by both SSE and 3DNow!A.
	(Cpu3dnowA): Declare.
	(CpuUnknownFlags): Update.
	* config/tc-i386.c (cpu_sub_arch_name): Declare.
	(cpu_arch): i586 and pentium do not imply MMX. i686 and pentiumpro do
	neither imply SSE nor MMX. k6 implies MMX. k6_2 additionally implies
	3DNow!. Athlon additionally implies 3DNow!A. Several new
	entries (those starting with a dot are for sub-arch specification).
	(set_cpu_arch): Handle sub-arch specifications.
	(parse_insn): Distinguish between instructions not supported because
	of insufficient CPU features and because of 64-bit mode.
	* doc/c-i386.texi: Describe enhanced .arch directive.

include/opcode/
2004-11-23 Jan Beulich <jbeulich@novell.com>

	* i386.h (i386_optab): paddq and psubq, even in their MMX form, are
	available only with SSE2. Change the MMX additions introduced by SSE
	and 3DNow!A to CpuMMX2 (rather than CpuMMX). Indicate the 3DNow!A
	instructions by their now designated identifier (since combining i686
	and 3DNow! does not really imply 3DNow!A).

1 files changed, 59 insertions, 16 deletions

diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c
index aa2ec54..430a338 100644
--- a/gas/config/tc-i386.c
+++ b/gas/config/tc-i386.c
@@ -314,6 +314,7 @@ static int quiet_warnings = 0;
 
 /* CPU name.  */
 static const char *cpu_arch_name = NULL;
+static const char *cpu_sub_arch_name = NULL;
 
 /* CPU feature flags.  */
 static unsigned int cpu_arch_flags = CpuUnknownFlags | CpuNo64;
@@ -416,14 +417,24 @@ static const arch_entry cpu_arch[] = {
   {"i286",	Cpu086|Cpu186|Cpu286 },
   {"i386",	Cpu086|Cpu186|Cpu286|Cpu386 },
   {"i486",	Cpu086|Cpu186|Cpu286|Cpu386|Cpu486 },
-  {"i586",	Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|CpuMMX },
-  {"i686",	Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|Cpu686|CpuMMX|CpuSSE },
-  {"pentium",	Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|CpuMMX },
-  {"pentiumpro",Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|Cpu686|CpuMMX|CpuSSE },
-  {"pentium4",	Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|Cpu686|CpuP4|CpuMMX|CpuSSE|CpuSSE2 },
-  {"k6",	Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|CpuK6|CpuMMX|Cpu3dnow },
-  {"athlon",	Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|Cpu686|CpuK6|CpuAthlon|CpuMMX|Cpu3dnow },
-  {"sledgehammer",Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|Cpu686|CpuK6|CpuAthlon|CpuSledgehammer|CpuMMX|Cpu3dnow|CpuSSE|CpuSSE2 },
+  {"i586",	Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586 },
+  {"i686",	Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|Cpu686 },
+  {"pentium",	Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586 },
+  {"pentiumpro",Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|Cpu686 },
+  {"pentiumii",	Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|Cpu686|CpuMMX },
+  {"pentiumiii",Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|Cpu686|CpuMMX|CpuMMX2|CpuSSE },
+  {"pentium4",	Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|Cpu686|CpuP4|CpuMMX|CpuMMX2|CpuSSE|CpuSSE2 },
+  {"prescott",	Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|Cpu686|CpuP4|CpuMMX|CpuMMX2|CpuSSE|CpuSSE2|CpuPNI },
+  {"k6",	Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|CpuK6|CpuMMX },
+  {"k6_2",	Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|CpuK6|CpuMMX|Cpu3dnow },
+  {"athlon",	Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|Cpu686|CpuK6|CpuAthlon|CpuMMX|CpuMMX2|Cpu3dnow|Cpu3dnowA },
+  {"sledgehammer",Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|Cpu686|CpuK6|CpuAthlon|CpuSledgehammer|CpuMMX|CpuMMX2|Cpu3dnow|Cpu3dnowA|CpuSSE|CpuSSE2 },
+  {".mmx",	CpuMMX },
+  {".sse",	CpuMMX|CpuMMX2|CpuSSE },
+  {".sse2",	CpuMMX|CpuMMX2|CpuSSE|CpuSSE2 },
+  {".3dnow",	CpuMMX|Cpu3dnow },
+  {".3dnowa",	CpuMMX|CpuMMX2|Cpu3dnow|Cpu3dnowA },
+  {".padlock",	CpuPadLock },
   {NULL, 0 }
 };
 
@@ -836,10 +847,22 @@ set_cpu_arch (dummy)
 	{
 	  if (strcmp (string, cpu_arch[i].name) == 0)
 	    {
-	      cpu_arch_name = cpu_arch[i].name;
-	      cpu_arch_flags = (cpu_arch[i].flags
-				| (flag_code == CODE_64BIT ? Cpu64 : CpuNo64));
-	      break;
+	      if (*string != '.')
+		{
+		  cpu_arch_name = cpu_arch[i].name;
+		  cpu_sub_arch_name = NULL;
+		  cpu_arch_flags = (cpu_arch[i].flags
+				    | (flag_code == CODE_64BIT ? Cpu64 : CpuNo64));
+		  break;
+		}
+	      if ((cpu_arch_flags | cpu_arch[i].flags) != cpu_arch_flags)
+		{
+		  cpu_sub_arch_name = cpu_arch[i].name;
+		  cpu_arch_flags |= cpu_arch[i].flags;
+		}
+	      *input_line_pointer = e;
+	      demand_empty_rest_of_line ();
+	      return;
 	    }
 	}
       if (!cpu_arch[i].name)
@@ -1561,6 +1584,8 @@ parse_insn (line, mnemonic)
   char *l = line;
   char *token_start = l;
   char *mnem_p;
+  int supported;
+  const template *t;
 
   /* Non-zero if we found a prefix only acceptable with string insns.  */
   const char *expecting_string_instruction = NULL;
@@ -1709,11 +1734,29 @@ parse_insn (line, mnemonic)
     }
 
   /* Check if instruction is supported on specified architecture.  */
-  if ((current_templates->start->cpu_flags & ~(Cpu64 | CpuNo64))
-      & ~(cpu_arch_flags & ~(Cpu64 | CpuNo64)))
+  supported = 0;
+  for (t = current_templates->start; t < current_templates->end; ++t)
+    {
+      if (!((t->cpu_flags & ~(Cpu64 | CpuNo64))
+	    & ~(cpu_arch_flags & ~(Cpu64 | CpuNo64))))
+	  supported |= 1;
+      if (!(t->cpu_flags & (flag_code == CODE_64BIT ? CpuNo64 : Cpu64)))
+	  supported |= 2;
+    }
+  if (!(supported & 2))
+    {
+      as_bad (flag_code == CODE_64BIT
+	      ? _("`%s' is not supported in 64-bit mode")
+	      : _("`%s' is only supported in 64-bit mode"),
+	      current_templates->start->name);
+      return NULL;
+    }
+  if (!(supported & 1))
     {
-      as_warn (_("`%s' is not supported on `%s'"),
-	       current_templates->start->name, cpu_arch_name);
+      as_warn (_("`%s' is not supported on `%s%s'"),
+	       current_templates->start->name,
+	       cpu_arch_name,
+	       cpu_sub_arch_name ? cpu_sub_arch_name : "");
     }
   else if ((Cpu386 & ~cpu_arch_flags) && (flag_code != CODE_16BIT))
     {