Implement RDRSEED, ADX and PRFCHW instructions

gas/

	* config/tc-i386.c: Add ADX, RDSEED and PRFCHW asm directives.
	* doc/c-i386.texi: Document the new directives.

gas/testsuite/

	* gas/i386/i386.exp: Run adx, rdseed and prefetchw tests.
	* gas/i386/x86-64-arch-2.s: Use prefetchw as 3dnow and Prfchw tests.
	* gas/i386/arch-10.s: Likewise.
	* gas/i386/arch-10-1.l: Changed correspondingly.
	* gas/i386/arch-10-2.l: Likewise.
	* gas/i386/arch-10-3.l: Likewise.
	* gas/i386/arch-10-4.l: Likewise.
	* gas/i386/arch-10.d: Likewise.
	* gas/i386/arch-10-lzcnt.d: Likewise.
	* gas/i386/x86-64-arch-2.d: Likewise.
	* gas/i386/x86-64-arch-2-lzcnt.d: Likewise.
	* gas/i386/ilp32/x86-64-arch-2.d: Likewise.
	* gas/i386/arch-10-prefetchw.d: New file.
	* gas/i386/x86-64-arch-2-prefetchw.d: Likewise.
	* gas/i386/rdseed.s: Likewise.
	* gas/i386/rdseed.d: Likewise.
	* gas/i386/rdseed-intel.d: Likewise.
	* gas/i386/adx.s: Likewise.
	* gas/i386/adx.d: Likewise.
	* gas/i386/adx-intel.d: Likewise.
	* gas/i386/x86-64-rdseed.s: Likewise.
	* gas/i386/x86-64-rdseed.d: Likewise.
	* gas/i386/x86-64-rdseed-intel.d: Likewise.
	* gas/i386/x86-64-adx.s: Likewise.
	* gas/i386/x86-64-adx.d: Likewise.
	* gas/i386/x86-64-adx-intel.d: Likewise.

opcodes/

	* i386-dis.c (PREFIX_0F38F6): New.
	(prefix_table): Add adcx, adox instructions.
	(three_byte_table): Use PREFIX_0F38F6.
	(mod_table): Add rdseed instruction.
	* i386-gen.c (cpu_flag_init): Add CpuADX, CpuRDSEED, CpuPRFCHW.
	(cpu_flags): Likewise.
	* i386-opc.h: Add CpuADX, CpuRDSEED, CpuPRFCHW.
	(i386_cpu_flags): Add fields cpurdseed, cpuadx, cpuprfchw.
	* i386-opc.tbl: Add instrcutions adcx, adox, rdseed. Extend
	prefetchw.
	* i386-tbl.h: Regenerate.
	* i386-init.h: Likewise.

opcodes/ChangeLog

@@ -1,3 +1,18 @@
+2012-07-16  Michael Zolotukhin  <michael.v.zolotukhin@intel.com>
+
+	* i386-dis.c (PREFIX_0F38F6): New.
+	(prefix_table): Add adcx, adox instructions.
+	(three_byte_table): Use PREFIX_0F38F6.
+	(mod_table): Add rdseed instruction.
+	* i386-gen.c (cpu_flag_init): Add CpuADX, CpuRDSEED, CpuPRFCHW.
+	(cpu_flags): Likewise.
+	* i386-opc.h: Add CpuADX, CpuRDSEED, CpuPRFCHW.
+	(i386_cpu_flags): Add fields cpurdseed, cpuadx, cpuprfchw.
+	* i386-opc.tbl: Add instrcutions adcx, adox, rdseed. Extend
+	prefetchw.
+	* i386-tbl.h: Regenerate.
+	* i386-init.h: Likewise.
+
 2012-07-05  Thomas Schwinge  <thomas@codesourcery.com>
 
 	* mips-dis.c: Remove gratuitous newline.

opcodes/i386-dis.c

@@ -851,6 +851,7 @@ enum
   PREFIX_0F38DF,
   PREFIX_0F38F0,
   PREFIX_0F38F1,
+  PREFIX_0F38F6,
   PREFIX_0F3A08,
   PREFIX_0F3A09,
   PREFIX_0F3A0A,
@@ -3485,6 +3486,14 @@ static const struct dis386 prefix_table[][4] = {
     { "crc32",	{ Gdq, { CRC32_Fixup, v_mode } } },	
   },
 
+  /* PREFIX_0F38F6 */
+  {
+    { Bad_Opcode },
+    { "adoxS",	{ Gdq, Edq} },
+    { "adcxS",	{ Gdq, Edq} },
+    { Bad_Opcode },
+  },
+
   /* PREFIX_0F3A08 */
   {
     { Bad_Opcode },
@@ -6055,7 +6064,7 @@ static const struct dis386 three_byte_table[][256] = {
     { Bad_Opcode },
     { Bad_Opcode },
     { Bad_Opcode },
-    { Bad_Opcode },
+    { PREFIX_TABLE (PREFIX_0F38F6) },
     { Bad_Opcode },
     /* f8 */
     { Bad_Opcode },
@@ -10323,6 +10332,7 @@ static const struct dis386 mod_table[][2] = {
   {
     /* MOD_0FC7_REG_7 */
     { "vmptrst",	{ Mq } },
+    { "rdseed",		{ Ev } },
   },
   {
     /* MOD_0FD7 */

opcodes/i386-gen.c

@@ -192,6 +192,12 @@ static initializer cpu_flag_init[] =
     "unknown" },
   { "CPU_K1OM_FLAGS",
     "unknown" },
+  { "CPU_ADX_FLAGS",
+    "CpuADX" },
+  { "CPU_RDSEED_FLAGS",
+    "CpuRdSeed" },
+  { "CPU_PRFCHW_FLAGS",
+    "CpuPRFCHW" },
 };
 
 static initializer operand_type_init[] =
@@ -359,6 +365,9 @@ static bitfield cpu_flags[] =
   BITFIELD (CpuRTM),
   BITFIELD (CpuINVPCID),
   BITFIELD (CpuVMFUNC),
+  BITFIELD (CpuRDSEED),
+  BITFIELD (CpuADX),
+  BITFIELD (CpuPRFCHW),
   BITFIELD (Cpu64),
   BITFIELD (CpuNo64),
 #ifdef CpuUnused