x86: eliminate ImmExt abuse

Drop the remaining instances left in place by commit c3949f432f ("x86:
limit ImmExt abuse), now that we have a way to specify specific GPRs.

Take the opportunity and also introduce proper 16-bit forms of
applicable SVME insns as well as 1-operand forms of CLZERO.

18 files changed, 540 insertions, 445 deletions

diff --git a/gas/ChangeLog b/gas/ChangeLog
index efc5395458e..65e327d86d1 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,5 +1,21 @@
 2019-11-12  Jan Beulich  <jbeulich@suse.com>
 
+	* config/tc-i386.c (process_immext): Remove SSE3, SVME, and
+	MWAITX special case logic.
+	(process_suffix): Replace immext field uses by instance ones.
+	* testsuite/gas/i386/arch-13.s,
+	testsuite/gas/i386/x86-64-arch-3.s: Add CLZERO with operand
+	cases.
+	* testsuite/gas/i386/svme.s: Add 16-bit operand cases.
+	* testsuite/gas/i386/x86-64-specific-reg.s: Drop FIXME comments.
+	* testsuite/gas/i386/arch-13.d,
+	testsuite/gas/i386/mwaitx-reg.l, testsuite/gas/i386/svme.d,
+	testsuite/gas/i386/x86-64-arch-3.d,
+	testsuite/gas/i386/x86-64-mwaitx-reg.l,
+	testsuite/gas/i386/x86-64-specific-reg.l: Adjust expectations.
+
+2019-11-12  Jan Beulich  <jbeulich@suse.com>
+
 	* config/tc-i386.c (operand_type_set, operand_type_and,
 	operand_type_and_not, operand_type_or, operand_type_xor): Handle
 	"instance" field specially.
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c
index 75ea225efdd..f3e77d73e0a 100644
--- a/gas/config/tc-i386.c
+++ b/gas/config/tc-i386.c
@@ -3850,52 +3850,6 @@ process_immext (void)
 {
   expressionS *exp;
 
-  if ((i.tm.cpu_flags.bitfield.cpusse3 || i.tm.cpu_flags.bitfield.cpusvme)
-      && i.operands > 0)
-    {
-      /* MONITOR/MWAIT as well as SVME instructions have fixed operands
-	 with an opcode suffix which is coded in the same place as an
-	 8-bit immediate field would be.
-	 Here we check those operands and remove them afterwards.  */
-      unsigned int x;
-
-      for (x = 0; x < i.operands; x++)
-	if (register_number (i.op[x].regs) != x)
-	  as_bad (_("can't use register '%s%s' as operand %d in '%s'."),
-		  register_prefix, i.op[x].regs->reg_name, x + 1,
-		  i.tm.name);
-
-      i.operands = 0;
-    }
-
-  if (i.tm.cpu_flags.bitfield.cpumwaitx && i.operands > 0)
-    {
-      /* MONITORX/MWAITX instructions have fixed operands with an opcode
-	 suffix which is coded in the same place as an 8-bit immediate
-	 field would be.
-	 Here we check those operands and remove them afterwards.  */
-      unsigned int x;
-
-      if (i.operands != 3)
-	abort();
-
-      for (x = 0; x < 2; x++)
-	if (register_number (i.op[x].regs) != x)
-	  goto bad_register_operand;
-
-      /* Check for third operand for mwaitx/monitorx insn.  */
-      if (register_number (i.op[x].regs)
-	  != (x + (i.tm.extension_opcode == 0xfb)))
-	{
-bad_register_operand:
-	  as_bad (_("can't use register '%s%s' as operand %d in '%s'."),
-		  register_prefix, i.op[x].regs->reg_name, x+1,
-		  i.tm.name);
-	}
-
-      i.operands = 0;
-    }
-
   /* These AMD 3DNow! and SSE2 instructions have an opcode suffix
      which is coded in the same place as an 8-bit immediate field
      would be.  Here we fake an 8-bit immediate operand from the
@@ -6473,7 +6427,7 @@ process_suffix (void)
       if (i.reg_operands > 0
 	  && i.types[0].bitfield.class == Reg
 	  && i.tm.opcode_modifier.addrprefixopreg
-	  && (i.tm.opcode_modifier.immext
+	  && (i.tm.operand_types[0].bitfield.instance == Accum
 	      || i.operands == 1))
 	{
 	  /* The address size override prefix changes the size of the
@@ -6523,7 +6477,7 @@ process_suffix (void)
   if (i.reg_operands != 0
       && i.operands > 1
       && i.tm.opcode_modifier.addrprefixopreg
-      && !i.tm.opcode_modifier.immext)
+      && i.tm.operand_types[0].bitfield.instance != Accum)
     {
       /* Check invalid register operand when the address size override
 	 prefix changes the size of register operands.  */
diff --git a/gas/testsuite/gas/i386/arch-13.d b/gas/testsuite/gas/i386/arch-13.d
index b9d79b46001..7e575bf4212 100644
--- a/gas/testsuite/gas/i386/arch-13.d
+++ b/gas/testsuite/gas/i386/arch-13.d
@@ -12,7 +12,9 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	66 0f 38 f6 ca       	adcx   %edx,%ecx
 [ 	]*[a-f0-9]+:	f3 0f 38 f6 ca       	adox   %edx,%ecx
 [ 	]*[a-f0-9]+:	0f c7 f8             	rdseed %eax
-[ 	]*[a-f0-9]+:	0f 01 fc             	clzero 
+[ 	]*[a-f0-9]+:	0f 01 fc             	clzero[ 	]*
+[ 	]*[a-f0-9]+:	0f 01 fc             	clzero[ 	]*
+[ 	]*[a-f0-9]+:	67 0f 01 fc          	addr16 clzero[ 	]*
 [ 	]*[a-f0-9]+:	0f c7 21             	xsavec \(%ecx\)
 [ 	]*[a-f0-9]+:	0f c7 29             	xsaves \(%ecx\)
 [ 	]*[a-f0-9]+:	66 0f ae 39          	clflushopt \(%ecx\)
diff --git a/gas/testsuite/gas/i386/arch-13.s b/gas/testsuite/gas/i386/arch-13.s
index 56d421bbf37..1c20cfe8510 100644
--- a/gas/testsuite/gas/i386/arch-13.s
+++ b/gas/testsuite/gas/i386/arch-13.s
@@ -11,6 +11,8 @@
 	rdseed    %eax
 #CLZERO
 	clzero
+	clzero  %eax
+	clzero  %ax
 #XSAVEC
 	xsavec  (%ecx)
 #XSAVES
diff --git a/gas/testsuite/gas/i386/mwaitx-reg.l b/gas/testsuite/gas/i386/mwaitx-reg.l
index 68ea6e98d63..de2355a6ec7 100644
--- a/gas/testsuite/gas/i386/mwaitx-reg.l
+++ b/gas/testsuite/gas/i386/mwaitx-reg.l
@@ -1,59 +1,59 @@
 #as: -march=mwaitx
 .*: Assembler messages:
 #eax
-.*:[0-9]*: Error: .*eax.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*eax.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*eax.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*eax.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #ebx
-.*:[0-9]*: Error: .*ebx.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*ebx.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*ebx.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*ebx.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*ebx.* 2 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #ecx
-.*:[0-9]*: Error: .*ecx.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*ecx.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*ecx.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*ecx.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #edx
-.*:[0-9]*: Error: .*edx.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*edx.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*edx.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*edx.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*edx.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #esp
-.*:[0-9]*: Error: .*esp.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*esp.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*esp.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*esp.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*esp.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*esp.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #ebp
-.*:[0-9]*: Error: .*ebp.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*ebp.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*ebp.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*ebp.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*ebp.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*ebp.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #esi
-.*:[0-9]*: Error: .*esi.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*esi.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*esi.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*esi.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*esi.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*esi.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #edi
-.*:[0-9]*: Error: .*edi.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*edi.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*edi.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*edi.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*edi.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*edi.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
diff --git a/gas/testsuite/gas/i386/svme.d b/gas/testsuite/gas/i386/svme.d
index d7682a47065..f5c17b7ec26 100644
--- a/gas/testsuite/gas/i386/svme.d
+++ b/gas/testsuite/gas/i386/svme.d
@@ -20,10 +20,20 @@ Disassembly of section .text:
 [	 ]*[0-9a-f]+:[	 ]+0f 01 da[	 ]+vmload[	 ]*
 [	 ]*[0-9a-f]+:[	 ]+0f 01 d8[	 ]+vmrun[	 ]*
 [	 ]*[0-9a-f]+:[	 ]+0f 01 db[	 ]+vmsave[	 ]*
+[0-9a-f]+ <att16>:
+[	 ]*[0-9a-f]+:[	 ]+67 0f 01 df[	 ]+addr16 invlpga[	 ]*
+[	 ]*[0-9a-f]+:[	 ]+67 0f 01 da[	 ]+addr16 vmload[	 ]*
+[	 ]*[0-9a-f]+:[	 ]+67 0f 01 d8[	 ]+addr16 vmrun[	 ]*
+[	 ]*[0-9a-f]+:[	 ]+67 0f 01 db[	 ]+addr16 vmsave[	 ]*
 [0-9a-f]+ <intel32>:
 [	 ]*[0-9a-f]+:[	 ]+0f 01 de[	 ]+skinit[	 ]*
 [	 ]*[0-9a-f]+:[	 ]+0f 01 df[	 ]+invlpga[	 ]*
 [	 ]*[0-9a-f]+:[	 ]+0f 01 da[	 ]+vmload[	 ]*
 [	 ]*[0-9a-f]+:[	 ]+0f 01 d8[	 ]+vmrun[	 ]*
 [	 ]*[0-9a-f]+:[	 ]+0f 01 db[	 ]+vmsave[	 ]*
+[0-9a-f]+ <intel16>:
+[	 ]*[0-9a-f]+:[	 ]+67 0f 01 df[	 ]+addr16 invlpga[	 ]*
+[	 ]*[0-9a-f]+:[	 ]+67 0f 01 da[	 ]+addr16 vmload[	 ]*
+[	 ]*[0-9a-f]+:[	 ]+67 0f 01 d8[	 ]+addr16 vmrun[	 ]*
+[	 ]*[0-9a-f]+:[	 ]+67 0f 01 db[	 ]+addr16 vmsave[	 ]*
 #pass
diff --git a/gas/testsuite/gas/i386/svme.s b/gas/testsuite/gas/i386/svme.s
index ff1be7c96eb..a721e36777f 100644
--- a/gas/testsuite/gas/i386/svme.s
+++ b/gas/testsuite/gas/i386/svme.s
@@ -23,6 +23,10 @@ att64:
 att32:
 	skinit	%eax
 	do_args	%eax, %ecx
+.ifndef __amd64__
+att16:
+	do_args	%ax, %ecx
+.endif
 
 .intel_syntax noprefix
 .ifdef __amd64__
@@ -32,5 +36,9 @@ intel64:
 intel32:
 	skinit	eax
 	do_args	eax, ecx
+.ifndef __amd64__
+intel16:
+	do_args	ax, ecx
+.endif
 
 	.p2align 4,0
diff --git a/gas/testsuite/gas/i386/x86-64-arch-3.d b/gas/testsuite/gas/i386/x86-64-arch-3.d
index 19d34fcdaae..ae141999d4c 100644
--- a/gas/testsuite/gas/i386/x86-64-arch-3.d
+++ b/gas/testsuite/gas/i386/x86-64-arch-3.d
@@ -12,7 +12,9 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	66 0f 38 f6 ca       	adcx   %edx,%ecx
 [ 	]*[a-f0-9]+:	f3 0f 38 f6 ca       	adox   %edx,%ecx
 [ 	]*[a-f0-9]+:	0f c7 f8             	rdseed %eax
-[ 	]*[a-f0-9]+:	0f 01 fc             	clzero 
+[ 	]*[a-f0-9]+:	0f 01 fc             	clzero[ 	]*
+[ 	]*[a-f0-9]+:	0f 01 fc             	clzero[ 	]*
+[ 	]*[a-f0-9]+:	67 0f 01 fc          	addr32 clzero[ 	]*
 [ 	]*[a-f0-9]+:	44 0f 38 c8 00       	sha1nexte \(%rax\),%xmm8
 [ 	]*[a-f0-9]+:	48 0f c7 21          	xsavec64 \(%rcx\)
 [ 	]*[a-f0-9]+:	48 0f c7 29          	xsaves64 \(%rcx\)
diff --git a/gas/testsuite/gas/i386/x86-64-arch-3.s b/gas/testsuite/gas/i386/x86-64-arch-3.s
index e002af4d35f..f7a9f2c6d39 100644
--- a/gas/testsuite/gas/i386/x86-64-arch-3.s
+++ b/gas/testsuite/gas/i386/x86-64-arch-3.s
@@ -10,6 +10,8 @@
 	rdseed    %eax
 #CLZERO
 	clzero
+	clzero  %rax
+	clzero  %eax
 #SHA
 	sha1nexte (%rax), %xmm8
 #XSAVEC
diff --git a/gas/testsuite/gas/i386/x86-64-mwaitx-reg.l b/gas/testsuite/gas/i386/x86-64-mwaitx-reg.l
index ea1fef026c2..690f04f243e 100644
--- a/gas/testsuite/gas/i386/x86-64-mwaitx-reg.l
+++ b/gas/testsuite/gas/i386/x86-64-mwaitx-reg.l
@@ -1,123 +1,123 @@
 #as: -march=mwaitx
 .*: Assembler messages:
 #rax
-.*:[0-9]*: Error: .*rax.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*rax.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*rax.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*rax.* 3 .*mwaitx.*
+.*:[0-9]*: Error:.*monitorx.*
+.*:[0-9]*: Error:.*monitorx.*
+.*:[0-9]*: Error:.*mwaitx.*
+.*:[0-9]*: Error:.*mwaitx.*
 
 #rbx
-.*:[0-9]*: Error: .*rbx.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*rbx.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*rbx.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*rbx.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*rbx.* 2 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #rcx
-.*:[0-9]*: Error: .*rcx.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*rcx.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*rcx.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*rcx.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #rdx
-.*:[0-9]*: Error: .*rdx.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*rdx.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*rdx.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*rdx.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*rdx.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #rsp
-.*:[0-9]*: Error: .*rsp.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*rsp.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*rsp.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*rsp.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*rsp.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*rsp.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #rbp
-.*:[0-9]*: Error: .*rbp.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*rbp.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*rbp.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*rbp.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*rbp.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*rbp.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #rsi
-.*:[0-9]*: Error: .*rsi.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*rsi.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*rsi.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*rsi.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*rsi.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*rsi.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #rdi
-.*:[0-9]*: Error: .*rdi.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*rdi.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*rdi.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*rdi.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*rdi.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*rdi.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #r8
-.*:[0-9]*: Error: .*r8.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*r8.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*r8.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*r8.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*r8.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*r8.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #r9
-.*:[0-9]*: Error: .*r9.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*r9.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*r9.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*r9.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*r9.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*r9.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #r10
-.*:[0-9]*: Error: .*r10.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*r10.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*r10.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*r10.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*r10.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*r10.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #r11
-.*:[0-9]*: Error: .*r11.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*r11.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*r11.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*r11.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*r11.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*r11.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #r12
-.*:[0-9]*: Error: .*r12.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*r12.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*r12.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*r12.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*r12.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*r12.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #r13
-.*:[0-9]*: Error: .*r13.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*r13.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*r13.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*r13.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*r13.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*r13.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #r14
-.*:[0-9]*: Error: .*r14.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*r14.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*r14.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*r14.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*r14.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*r14.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
 
 #r15
-.*:[0-9]*: Error: .*r15.* 1 .*monitorx.*
-.*:[0-9]*: Error: .*r15.* 2 .*monitorx.*
-.*:[0-9]*: Error: .*r15.* 3 .*monitorx.*
-.*:[0-9]*: Error: .*r15.* 1 .*mwaitx.*
-.*:[0-9]*: Error: .*r15.* 2 .*mwaitx.*
-.*:[0-9]*: Error: .*r15.* 3 .*mwaitx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*monitorx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
+.*:[0-9]*: Error: .*mwaitx.*
diff --git a/gas/testsuite/gas/i386/x86-64-specific-reg.l b/gas/testsuite/gas/i386/x86-64-specific-reg.l
index fee1ba11d6e..3b014582ae2 100644
--- a/gas/testsuite/gas/i386/x86-64-specific-reg.l
+++ b/gas/testsuite/gas/i386/x86-64-specific-reg.l
@@ -9,10 +9,10 @@
 .*:[0-9]*: Warning: .*rax.*rdi.*
 .*:[0-9]*: Warning: .*rax.*rdi.*
 .*:[0-9]*: Warning: .*rax.*rsi.*
-.*:[0-9]*: Error: .*rax.* 2 .*mwait.*
-.*:[0-9]*: Error: .*rax.* 2 .*monitor.*
-.*:[0-9]*: Error: .*rax.* 3 .*monitor.*
-.*:[0-9]*: Error: .*eax.* 2 .*invlpga.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*invlpga.*
 .*:[0-9]*: Warning: .*rcx.*rsi.*
 .*:[0-9]*: Warning: .*rcx.*rdi.*
 .*:[0-9]*: Warning: .*rcx.*rdi.*
@@ -23,14 +23,14 @@
 .*:[0-9]*: Warning: .*rcx.*rdi.*
 .*:[0-9]*: Warning: .*rcx.*rdi.*
 .*:[0-9]*: Warning: .*rcx.*rsi.*
-.*:[0-9]*: Error: .*rcx.* 1 .*mwait.*
-.*:[0-9]*: Error: .*rcx.* 1 .*monitor.*
-.*:[0-9]*: Error: .*rcx.* 3 .*monitor.*
-.*:[0-9]*: Error: .*rcx.* 1 .*vmload.*
-.*:[0-9]*: Error: .*rcx.* 1 .*vmrun.*
-.*:[0-9]*: Error: .*rcx.* 1 .*vmsave.*
-.*:[0-9]*: Error: .*rcx.* 1 .*invlpga.*
-.*:[0-9]*: Error: .*ecx.* 1 .*skinit.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*vmload.*
+.*:[0-9]*: Error: .*vmrun.*
+.*:[0-9]*: Error: .*vmsave.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*skinit.*
 .*:[0-9]*: Warning: .*rdx.*rsi.*
 .*:[0-9]*: Warning: .*rdx.*rdi.*
 .*:[0-9]*: Warning: .*rdx.*rdi.*
@@ -41,16 +41,16 @@
 .*:[0-9]*: Warning: .*rdx.*rdi.*
 .*:[0-9]*: Warning: .*rdx.*rdi.*
 .*:[0-9]*: Warning: .*rdx.*rsi.*
-.*:[0-9]*: Error: .*rdx.* 1 .*mwait.*
-.*:[0-9]*: Error: .*rdx.* 2 .*mwait.*
-.*:[0-9]*: Error: .*rdx.* 1 .*monitor.*
-.*:[0-9]*: Error: .*rdx.* 2 .*monitor.*
-.*:[0-9]*: Error: .*rdx.* 1 .*vmload.*
-.*:[0-9]*: Error: .*rdx.* 1 .*vmrun.*
-.*:[0-9]*: Error: .*rdx.* 1 .*vmsave.*
-.*:[0-9]*: Error: .*rdx.* 1 .*invlpga.*
-.*:[0-9]*: Error: .*edx.* 2 .*invlpga.*
-.*:[0-9]*: Error: .*edx.* 1 .*skinit.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*vmload.*
+.*:[0-9]*: Error: .*vmrun.*
+.*:[0-9]*: Error: .*vmsave.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*skinit.*
 .*:[0-9]*: Warning: .*rbx.*rsi.*
 .*:[0-9]*: Warning: .*rbx.*rdi.*
 .*:[0-9]*: Warning: .*rbx.*rdi.*
@@ -60,17 +60,17 @@
 .*:[0-9]*: Warning: .*rbx.*rdi.*
 .*:[0-9]*: Warning: .*rbx.*rdi.*
 .*:[0-9]*: Warning: .*rbx.*rsi.*
-.*:[0-9]*: Error: .*rbx.* 1 .*mwait.*
-.*:[0-9]*: Error: .*rbx.* 2 .*mwait.*
-.*:[0-9]*: Error: .*rbx.* 1 .*monitor.*
-.*:[0-9]*: Error: .*rbx.* 2 .*monitor.*
-.*:[0-9]*: Error: .*rbx.* 3 .*monitor.*
-.*:[0-9]*: Error: .*rbx.* 1 .*vmload.*
-.*:[0-9]*: Error: .*rbx.* 1 .*vmrun.*
-.*:[0-9]*: Error: .*rbx.* 1 .*vmsave.*
-.*:[0-9]*: Error: .*rbx.* 1 .*invlpga.*
-.*:[0-9]*: Error: .*ebx.* 2 .*invlpga.*
-.*:[0-9]*: Error: .*ebx.* 1 .*skinit.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*vmload.*
+.*:[0-9]*: Error: .*vmrun.*
+.*:[0-9]*: Error: .*vmsave.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*skinit.*
 .*:[0-9]*: Warning: .*rsp.*rsi.*
 .*:[0-9]*: Warning: .*rsp.*rdi.*
 .*:[0-9]*: Warning: .*rsp.*rdi.*
@@ -81,17 +81,17 @@
 .*:[0-9]*: Warning: .*rsp.*rdi.*
 .*:[0-9]*: Warning: .*rsp.*rdi.*
 .*:[0-9]*: Warning: .*rsp.*rsi.*
-.*:[0-9]*: Error: .*rsp.* 1 .*mwait.*
-.*:[0-9]*: Error: .*rsp.* 2 .*mwait.*
-.*:[0-9]*: Error: .*rsp.* 1 .*monitor.*
-.*:[0-9]*: Error: .*rsp.* 2 .*monitor.*
-.*:[0-9]*: Error: .*rsp.* 3 .*monitor.*
-.*:[0-9]*: Error: .*rsp.* 1 .*vmload.*
-.*:[0-9]*: Error: .*rsp.* 1 .*vmrun.*
-.*:[0-9]*: Error: .*rsp.* 1 .*vmsave.*
-.*:[0-9]*: Error: .*rsp.* 1 .*invlpga.*
-.*:[0-9]*: Error: .*esp.* 2 .*invlpga.*
-.*:[0-9]*: Error: .*esp.* 1 .*skinit.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*vmload.*
+.*:[0-9]*: Error: .*vmrun.*
+.*:[0-9]*: Error: .*vmsave.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*skinit.*
 .*:[0-9]*: Warning: .*rbp.*rsi.*
 .*:[0-9]*: Warning: .*rbp.*rdi.*
 .*:[0-9]*: Warning: .*rbp.*rdi.*
@@ -102,50 +102,50 @@
 .*:[0-9]*: Warning: .*rbp.*rdi.*
 .*:[0-9]*: Warning: .*rbp.*rdi.*
 .*:[0-9]*: Warning: .*rbp.*rsi.*
-.*:[0-9]*: Error: .*rbp.* 1 .*mwait.*
-.*:[0-9]*: Error: .*rbp.* 2 .*mwait.*
-.*:[0-9]*: Error: .*rbp.* 1 .*monitor.*
-.*:[0-9]*: Error: .*rbp.* 2 .*monitor.*
-.*:[0-9]*: Error: .*rbp.* 3 .*monitor.*
-.*:[0-9]*: Error: .*rbp.* 1 .*vmload.*
-.*:[0-9]*: Error: .*rbp.* 1 .*vmrun.*
-.*:[0-9]*: Error: .*rbp.* 1 .*vmsave.*
-.*:[0-9]*: Error: .*rbp.* 1 .*invlpga.*
-.*:[0-9]*: Error: .*ebp.* 2 .*invlpga.*
-.*:[0-9]*: Error: .*ebp.* 1 .*skinit.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*vmload.*
+.*:[0-9]*: Error: .*vmrun.*
+.*:[0-9]*: Error: .*vmsave.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*skinit.*
 .*:[0-9]*: Warning: .*rsi.*rdi.*
 .*:[0-9]*: Warning: .*rsi.*rdi.*
 .*:[0-9]*: Warning: .*rsi.*rdi.*
 .*:[0-9]*: Warning: .*rsi.*rbx.*
 .*:[0-9]*: Warning: .*rsi.*rdi.*
 .*:[0-9]*: Warning: .*rsi.*rdi.*
-.*:[0-9]*: Error: .*rsi.* 1 .*mwait.*
-.*:[0-9]*: Error: .*rsi.* 2 .*mwait.*
-.*:[0-9]*: Error: .*rsi.* 1 .*monitor.*
-.*:[0-9]*: Error: .*rsi.* 2 .*monitor.*
-.*:[0-9]*: Error: .*rsi.* 3 .*monitor.*
-.*:[0-9]*: Error: .*rsi.* 1 .*vmload.*
-.*:[0-9]*: Error: .*rsi.* 1 .*vmrun.*
-.*:[0-9]*: Error: .*rsi.* 1 .*vmsave.*
-.*:[0-9]*: Error: .*rsi.* 1 .*invlpga.*
-.*:[0-9]*: Error: .*esi.* 2 .*invlpga.*
-.*:[0-9]*: Error: .*esi.* 1 .*skinit.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*vmload.*
+.*:[0-9]*: Error: .*vmrun.*
+.*:[0-9]*: Error: .*vmsave.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*skinit.*
 .*:[0-9]*: Warning: .*rdi.*rsi.*
 .*:[0-9]*: Warning: .*rdi.*rsi.*
 .*:[0-9]*: Warning: .*rdi.*rbx.*
 .*:[0-9]*: Warning: .*rdi.*rsi.*
 .*:[0-9]*: Warning: .*rdi.*rsi.*
-.*:[0-9]*: Error: .*rdi.* 1 .*mwait.*
-.*:[0-9]*: Error: .*rdi.* 2 .*mwait.*
-.*:[0-9]*: Error: .*rdi.* 1 .*monitor.*
-.*:[0-9]*: Error: .*rdi.* 2 .*monitor.*
-.*:[0-9]*: Error: .*rdi.* 3 .*monitor.*
-.*:[0-9]*: Error: .*rdi.* 1 .*vmload.*
-.*:[0-9]*: Error: .*rdi.* 1 .*vmrun.*
-.*:[0-9]*: Error: .*rdi.* 1 .*vmsave.*
-.*:[0-9]*: Error: .*rdi.* 1 .*invlpga.*
-.*:[0-9]*: Error: .*edi.* 2 .*invlpga.*
-.*:[0-9]*: Error: .*edi.* 1 .*skinit.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*vmload.*
+.*:[0-9]*: Error: .*vmrun.*
+.*:[0-9]*: Error: .*vmsave.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*skinit.*
 .*:[0-9]*: Warning: .*r8.*rsi.*
 .*:[0-9]*: Warning: .*r8.*rdi.*
 .*:[0-9]*: Warning: .*r8.*rdi.*
@@ -156,17 +156,17 @@
 .*:[0-9]*: Warning: .*r8.*rdi.*
 .*:[0-9]*: Warning: .*r8.*rdi.*
 .*:[0-9]*: Warning: .*r8.*rsi.*
-.*:[0-9]*: Error: .*r8.* 1 .*mwait.*
-.*:[0-9]*: Error: .*r8.* 2 .*mwait.*
-.*:[0-9]*: Error: .*r8.* 1 .*monitor.*
-.*:[0-9]*: Error: .*r8.* 2 .*monitor.*
-.*:[0-9]*: Error: .*r8.* 3 .*monitor.*
-.*:[0-9]*: Error: .*r8.* 1 .*vmload.*
-.*:[0-9]*: Error: .*r8.* 1 .*vmrun.*
-.*:[0-9]*: Error: .*r8.* 1 .*vmsave.*
-.*:[0-9]*: Error: .*r8.* 1 .*invlpga.*
-.*:[0-9]*: Error: .*r8.* 2 .*invlpga.*
-.*:[0-9]*: Error: .*r8.* 1 .*skinit.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*vmload.*
+.*:[0-9]*: Error: .*vmrun.*
+.*:[0-9]*: Error: .*vmsave.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*skinit.*
 .*:[0-9]*: Warning: .*r9.*rsi.*
 .*:[0-9]*: Warning: .*r9.*rdi.*
 .*:[0-9]*: Warning: .*r9.*rdi.*
@@ -177,17 +177,17 @@
 .*:[0-9]*: Warning: .*r9.*rdi.*
 .*:[0-9]*: Warning: .*r9.*rdi.*
 .*:[0-9]*: Warning: .*r9.*rsi.*
-.*:[0-9]*: Error: .*r9.* 1 .*mwait.*
-.*:[0-9]*: Error: .*r9.* 2 .*mwait.*
-.*:[0-9]*: Error: .*r9.* 1 .*monitor.*
-.*:[0-9]*: Error: .*r9.* 2 .*monitor.*
-.*:[0-9]*: Error: .*r9.* 3 .*monitor.*
-.*:[0-9]*: Error: .*r9.* 1 .*vmload.*
-.*:[0-9]*: Error: .*r9.* 1 .*vmrun.*
-.*:[0-9]*: Error: .*r9.* 1 .*vmsave.*
-.*:[0-9]*: Error: .*r9.* 1 .*invlpga.*
-.*:[0-9]*: Error: .*r9.* 2 .*invlpga.*
-.*:[0-9]*: Error: .*r9.* 1 .*skinit.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*vmload.*
+.*:[0-9]*: Error: .*vmrun.*
+.*:[0-9]*: Error: .*vmsave.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*skinit.*
 .*:[0-9]*: Warning: .*r10.*rsi.*
 .*:[0-9]*: Warning: .*r10.*rdi.*
 .*:[0-9]*: Warning: .*r10.*rdi.*
@@ -198,17 +198,17 @@
 .*:[0-9]*: Warning: .*r10.*rdi.*
 .*:[0-9]*: Warning: .*r10.*rdi.*
 .*:[0-9]*: Warning: .*r10.*rsi.*
-.*:[0-9]*: Error: .*r10.* 1 .*mwait.*
-.*:[0-9]*: Error: .*r10.* 2 .*mwait.*
-.*:[0-9]*: Error: .*r10.* 1 .*monitor.*
-.*:[0-9]*: Error: .*r10.* 2 .*monitor.*
-.*:[0-9]*: Error: .*r10.* 3 .*monitor.*
-.*:[0-9]*: Error: .*r10.* 1 .*vmload.*
-.*:[0-9]*: Error: .*r10.* 1 .*vmrun.*
-.*:[0-9]*: Error: .*r10.* 1 .*vmsave.*
-.*:[0-9]*: Error: .*r10.* 1 .*invlpga.*
-.*:[0-9]*: Error: .*r10.* 2 .*invlpga.*
-.*:[0-9]*: Error: .*r10.* 1 .*skinit.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*vmload.*
+.*:[0-9]*: Error: .*vmrun.*
+.*:[0-9]*: Error: .*vmsave.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*skinit.*
 .*:[0-9]*: Warning: .*r11.*rsi.*
 .*:[0-9]*: Warning: .*r11.*rdi.*
 .*:[0-9]*: Warning: .*r11.*rdi.*
@@ -219,17 +219,17 @@
 .*:[0-9]*: Warning: .*r11.*rdi.*
 .*:[0-9]*: Warning: .*r11.*rdi.*
 .*:[0-9]*: Warning: .*r11.*rsi.*
-.*:[0-9]*: Error: .*r11.* 1 .*mwait.*
-.*:[0-9]*: Error: .*r11.* 2 .*mwait.*
-.*:[0-9]*: Error: .*r11.* 1 .*monitor.*
-.*:[0-9]*: Error: .*r11.* 2 .*monitor.*
-.*:[0-9]*: Error: .*r11.* 3 .*monitor.*
-.*:[0-9]*: Error: .*r11.* 1 .*vmload.*
-.*:[0-9]*: Error: .*r11.* 1 .*vmrun.*
-.*:[0-9]*: Error: .*r11.* 1 .*vmsave.*
-.*:[0-9]*: Error: .*r11.* 1 .*invlpga.*
-.*:[0-9]*: Error: .*r11.* 2 .*invlpga.*
-.*:[0-9]*: Error: .*r11.* 1 .*skinit.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*vmload.*
+.*:[0-9]*: Error: .*vmrun.*
+.*:[0-9]*: Error: .*vmsave.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*skinit.*
 .*:[0-9]*: Warning: .*r12.*rsi.*
 .*:[0-9]*: Warning: .*r12.*rdi.*
 .*:[0-9]*: Warning: .*r12.*rdi.*
@@ -240,17 +240,17 @@
 .*:[0-9]*: Warning: .*r12.*rdi.*
 .*:[0-9]*: Warning: .*r12.*rdi.*
 .*:[0-9]*: Warning: .*r12.*rsi.*
-.*:[0-9]*: Error: .*r12.* 1 .*mwait.*
-.*:[0-9]*: Error: .*r12.* 2 .*mwait.*
-.*:[0-9]*: Error: .*r12.* 1 .*monitor.*
-.*:[0-9]*: Error: .*r12.* 2 .*monitor.*
-.*:[0-9]*: Error: .*r12.* 3 .*monitor.*
-.*:[0-9]*: Error: .*r12.* 1 .*vmload.*
-.*:[0-9]*: Error: .*r12.* 1 .*vmrun.*
-.*:[0-9]*: Error: .*r12.* 1 .*vmsave.*
-.*:[0-9]*: Error: .*r12.* 1 .*invlpga.*
-.*:[0-9]*: Error: .*r12.* 2 .*invlpga.*
-.*:[0-9]*: Error: .*r12.* 1 .*skinit.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*vmload.*
+.*:[0-9]*: Error: .*vmrun.*
+.*:[0-9]*: Error: .*vmsave.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*skinit.*
 .*:[0-9]*: Warning: .*r13.*rsi.*
 .*:[0-9]*: Warning: .*r13.*rdi.*
 .*:[0-9]*: Warning: .*r13.*rdi.*
@@ -261,17 +261,17 @@
 .*:[0-9]*: Warning: .*r13.*rdi.*
 .*:[0-9]*: Warning: .*r13.*rdi.*
 .*:[0-9]*: Warning: .*r13.*rsi.*
-.*:[0-9]*: Error: .*r13.* 1 .*mwait.*
-.*:[0-9]*: Error: .*r13.* 2 .*mwait.*
-.*:[0-9]*: Error: .*r13.* 1 .*monitor.*
-.*:[0-9]*: Error: .*r13.* 2 .*monitor.*
-.*:[0-9]*: Error: .*r13.* 3 .*monitor.*
-.*:[0-9]*: Error: .*r13.* 1 .*vmload.*
-.*:[0-9]*: Error: .*r13.* 1 .*vmrun.*
-.*:[0-9]*: Error: .*r13.* 1 .*vmsave.*
-.*:[0-9]*: Error: .*r13.* 1 .*invlpga.*
-.*:[0-9]*: Error: .*r13.* 2 .*invlpga.*
-.*:[0-9]*: Error: .*r13.* 1 .*skinit.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*vmload.*
+.*:[0-9]*: Error: .*vmrun.*
+.*:[0-9]*: Error: .*vmsave.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*skinit.*
 .*:[0-9]*: Warning: .*r14.*rsi.*
 .*:[0-9]*: Warning: .*r14.*rdi.*
 .*:[0-9]*: Warning: .*r14.*rdi.*
@@ -282,17 +282,17 @@
 .*:[0-9]*: Warning: .*r14.*rdi.*
 .*:[0-9]*: Warning: .*r14.*rdi.*
 .*:[0-9]*: Warning: .*r14.*rsi.*
-.*:[0-9]*: Error: .*r14.* 1 .*mwait.*
-.*:[0-9]*: Error: .*r14.* 2 .*mwait.*
-.*:[0-9]*: Error: .*r14.* 1 .*monitor.*
-.*:[0-9]*: Error: .*r14.* 2 .*monitor.*
-.*:[0-9]*: Error: .*r14.* 3 .*monitor.*
-.*:[0-9]*: Error: .*r14.* 1 .*vmload.*
-.*:[0-9]*: Error: .*r14.* 1 .*vmrun.*
-.*:[0-9]*: Error: .*r14.* 1 .*vmsave.*
-.*:[0-9]*: Error: .*r14.* 1 .*invlpga.*
-.*:[0-9]*: Error: .*r14.* 2 .*invlpga.*
-.*:[0-9]*: Error: .*r14.* 1 .*skinit.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*vmload.*
+.*:[0-9]*: Error: .*vmrun.*
+.*:[0-9]*: Error: .*vmsave.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*skinit.*
 .*:[0-9]*: Warning: .*r15.*rsi.*
 .*:[0-9]*: Warning: .*r15.*rdi.*
 .*:[0-9]*: Warning: .*r15.*rdi.*
@@ -303,17 +303,17 @@
 .*:[0-9]*: Warning: .*r15.*rdi.*
 .*:[0-9]*: Warning: .*r15.*rdi.*
 .*:[0-9]*: Warning: .*r15.*rsi.*
-.*:[0-9]*: Error: .*r15.* 1 .*mwait.*
-.*:[0-9]*: Error: .*r15.* 2 .*mwait.*
-.*:[0-9]*: Error: .*r15.* 1 .*monitor.*
-.*:[0-9]*: Error: .*r15.* 2 .*monitor.*
-.*:[0-9]*: Error: .*r15.* 3 .*monitor.*
-.*:[0-9]*: Error: .*r15.* 1 .*vmload.*
-.*:[0-9]*: Error: .*r15.* 1 .*vmrun.*
-.*:[0-9]*: Error: .*r15.* 1 .*vmsave.*
-.*:[0-9]*: Error: .*r15.* 1 .*invlpga.*
-.*:[0-9]*: Error: .*r15.* 2 .*invlpga.*
-.*:[0-9]*: Error: .*r15.* 1 .*skinit.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*mwait.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*monitor.*
+.*:[0-9]*: Error: .*vmload.*
+.*:[0-9]*: Error: .*vmrun.*
+.*:[0-9]*: Error: .*vmsave.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*invlpga.*
+.*:[0-9]*: Error: .*skinit.*
 # xmm1
 .*:[0-9]*: Error: .*blendvpd.*
 .*:[0-9]*: Error: .*blendvps.*
diff --git a/gas/testsuite/gas/i386/x86-64-specific-reg.s b/gas/testsuite/gas/i386/x86-64-specific-reg.s
index e6b780bb3bb..2d8e5a09dcd 100644
--- a/gas/testsuite/gas/i386/x86-64-specific-reg.s
+++ b/gas/testsuite/gas/i386/x86-64-specific-reg.s
@@ -28,20 +28,15 @@ special:
 	monitor	%rax, %r\reg1, %rdx
 	monitor	%rax, %rcx, %r\reg1
 
-# FIXME: Need to ensure only "vmload %[re]ax" is accepted.
 	vmload	%r\reg1
 
-# FIXME: Need to ensure only "vmrun %[re]ax" is accepted.
 	vmrun	%r\reg1
 
-# FIXME: Need to ensure only "vmsave %[re]ax" is accepted.
 	vmsave	%r\reg1
 
-# FIXME: Need to ensure only "invlpga %[re]ax,%ecx" is accepted.
 	invlpga	%r\reg1, %ecx
 	invlpga	%rax, %e\reg1
 
-# FIXME: Need to ensure only "skinit %eax" is accepted.
 	skinit	%e\reg1
 .endr
 
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index ff694925673..11fe3c20dbf 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,5 +1,19 @@
 2019-11-12  Jan Beulich  <jbeulich@suse.com>
 
+	* i386-gen.c (operand_instances): Add RegB entry.
+	* i386-opc.h (enum operand_instance): Add RegB.
+	* i386-opc.tbl (RegC, RegD, RegB): Define.
+	(Acc, ShiftCount, InOutPortReg): Adjust definitions.
+	(monitor, mwait, invlpga, skinit, vmload, vmrun, vmsave, clzero,
+	monitorx, mwaitx): Drop ImmExt and convert encodings
+	accordingly.
+	* i386-reg.tbl (ecx, rcx): Add Instance=RegC.
+	(edx, rdx): Add Instance=RegD.
+	(ebx, rbx): Add Instance=RegB.
+	* i386-tbl.h: Re-generate.
+
+2019-11-12  Jan Beulich  <jbeulich@suse.com>
+
 	* i386-gen.c (operand_type_init): Adjust
 	OPERAND_TYPE_INOUTPORTREG, OPERAND_TYPE_SHIFTCOUNT,
 	OPERAND_TYPE_FLOATACC, OPERAND_TYPE_ACC8, OPERAND_TYPE_ACC16,
diff --git a/opcodes/i386-gen.c b/opcodes/i386-gen.c
index 28212cd28fd..4f0c7f2a64a 100644
--- a/opcodes/i386-gen.c
+++ b/opcodes/i386-gen.c
@@ -704,6 +704,7 @@ static const struct {
     INSTANCE (Accum),
     INSTANCE (RegC),
     INSTANCE (RegD),
+    INSTANCE (RegB),
 };
 
 #undef INSTANCE
diff --git a/opcodes/i386-opc.h b/opcodes/i386-opc.h
index 0bfb4d808cb..8f6cd045eb6 100644
--- a/opcodes/i386-opc.h
+++ b/opcodes/i386-opc.h
@@ -726,8 +726,9 @@ enum operand_instance
 {
   InstanceNone,
   Accum, /* Accumulator %al/%ax/%eax/%rax/%st(0)/%xmm0 */
-  RegC,  /* Register to hold shift count = %cl */
-  RegD,  /* Register to hold in/out port addr = %dx */
+  RegC,  /* %cl / %cx / %ecx / %rcx, e.g. register to hold shift count */
+  RegD,  /* %dl / %dx / %edx / %rdx, e.g. register to hold I/O port addr */
+  RegB,  /* %bl / %bx / %ebx / %rbx */
 };
 
 /* Position of operand_type bits.  */
diff --git a/opcodes/i386-opc.tbl b/opcodes/i386-opc.tbl
index b40dcbe2df9..de3db293a28 100644
--- a/opcodes/i386-opc.tbl
+++ b/opcodes/i386-opc.tbl
@@ -27,9 +27,13 @@
 #define Reg32 Class=Reg|Dword
 #define Reg64 Class=Reg|Qword
 
-#define Acc          Instance=Accum
-#define ShiftCount   Instance=RegC|Byte
-#define InOutPortReg Instance=RegD|Word
+#define Acc  Instance=Accum
+#define RegC Instance=RegC
+#define RegD Instance=RegD
+#define RegB Instance=RegB
+
+#define ShiftCount   RegC|Byte
+#define InOutPortReg RegD|Word
 
 #define FloatAcc Acc|Tbyte
 #define FloatReg Class=Reg|Tbyte
@@ -1551,11 +1555,10 @@ monitor, 0, 0xf01c8, None, 3, CpuSSE3, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|N
 // monitor is very special. CX and DX are always 32 bits. The
 // address size override prefix can be used to overrride the AX size in
 // all modes.
-// Need to ensure only "monitor %rax/%eax/%ax,%ecx,%edx" is accepted.
-monitor, 3, 0xf01, 0xc8, 2, CpuSSE3|CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ImmExt|AddrPrefixOpReg|NoAVX, { Reg16|Reg32, Reg32, Reg32 }
-monitor, 3, 0xf01, 0xc8, 2, CpuSSE3|Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ImmExt|AddrPrefixOpReg|NoRex64|NoAVX, { Reg32|Reg64, Reg32, Reg32 }
+monitor, 3, 0xf01c8, None, 3, CpuSSE3|CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|AddrPrefixOpReg|NoAVX, { Acc|Word|Dword, RegC|Dword, RegD|Dword }
+monitor, 3, 0xf01c8, None, 3, CpuSSE3|Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|AddrPrefixOpReg|NoRex64|NoAVX, { Acc|Dword|Qword, RegC|Dword, RegD|Dword }
 // The 64-bit form exists only for compatibility with older gas.
-monitor, 3, 0xf01, 0xc8, 2, CpuSSE3|Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ImmExt|AddrPrefixOpReg|NoRex64|NoAVX, { Reg32|Reg64, Reg64, Reg64 }
+monitor, 3, 0xf01c8, None, 3, CpuSSE3|Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|AddrPrefixOpReg|NoRex64|NoAVX, { Acc|Dword|Qword, RegC|Qword, RegD|Qword }
 movddup, 2, 0xf212, None, 1, CpuAVX, Modrm|Vex|VexOpcode=0|VexW=1|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|SSE2AVX, { Qword|Unspecified|BaseIndex|RegXMM, RegXMM }
 movddup, 2, 0xf20f12, None, 2, CpuSSE3, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Qword|Unspecified|BaseIndex|RegXMM, RegXMM }
 movshdup, 2, 0xf316, None, 1, CpuAVX, Modrm|Vex|VexOpcode=0|VexW=1|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|SSE2AVX, { RegXMM|Unspecified|BaseIndex, RegXMM }
@@ -1564,9 +1567,8 @@ movsldup, 2, 0xf312, None, 1, CpuAVX, Modrm|Vex|VexOpcode=0|VexW=1|No_bSuf|No_wS
 movsldup, 2, 0xf30f12, None, 2, CpuSSE3, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { RegXMM|Unspecified|BaseIndex, RegXMM }
 mwait, 0, 0xf01c9, None, 3, CpuSSE3, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|NoAVX, { 0 }
 // mwait is very special. AX and CX are always 32 bits.
-// Need to ensure only "mwait %eax,%ecx" is accepted.
 // The 64-bit form exists only for compatibility with older gas.
-mwait, 2, 0xf01, 0xc9, 2, CpuSSE3, CheckRegSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ImmExt|NoRex64|NoAVX, { Reg32|Reg64, Reg32|Reg64 }
+mwait, 2, 0xf01c9, None, 3, CpuSSE3, CheckRegSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|NoRex64|NoAVX, { Acc|Dword|Qword, RegC|Dword|Qword }
 
 // VMX instructions.
 
@@ -2810,17 +2812,21 @@ rdtscp, 0, 0xf01f9, None, 3, CpuRdtscp, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|
 // AMD Pacifica additions.
 clgi, 0, 0xf01dd, None, 3, CpuSVME, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 invlpga, 0, 0xf01df, None, 3, CpuSVME, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
-invlpga, 2, 0xf01, 0xdf, 2, CpuSVME, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ImmExt|AddrPrefixOpReg|NoRex64, { Reg32|Reg64, Reg32 }
+invlpga, 2, 0xf01df, None, 3, CpuSVME|CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|AddrPrefixOpReg, { Acc|Word|Dword, RegC|Dword }
+invlpga, 2, 0xf01df, None, 3, CpuSVME|Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|AddrPrefixOpReg|NoRex64, { Acc|Dword|Qword, RegC|Dword }
 skinit, 0, 0xf01de, None, 3, CpuSVME, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
-skinit, 1, 0xf01, 0xde, 2, CpuSVME, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ImmExt, { Reg32 }
+skinit, 1, 0xf01de, None, 3, CpuSVME, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Acc|Dword }
 stgi, 0, 0xf01dc, None, 3, CpuSVME, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 vmload, 0, 0xf01da, None, 3, CpuSVME, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
-vmload, 1, 0xf01, 0xda, 2, CpuSVME, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ImmExt|AddrPrefixOpReg|NoRex64, { Reg32|Reg64 }
+vmload, 1, 0xf01da, None, 3, CpuSVME|CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|AddrPrefixOpReg, { Acc|Word|Dword }
+vmload, 1, 0xf01da, None, 3, CpuSVME|Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|AddrPrefixOpReg|NoRex64, { Acc|Dword|Qword }
 vmmcall, 0, 0xf01d9, None, 3, CpuSVME, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 vmrun, 0, 0xf01d8, None, 3, CpuSVME, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
-vmrun, 1, 0xf01, 0xd8, 2, CpuSVME, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ImmExt|AddrPrefixOpReg|NoRex64, { Reg32|Reg64 }
+vmrun, 1, 0xf01d8, None, 3, CpuSVME|CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|AddrPrefixOpReg, { Acc|Word|Dword }
+vmrun, 1, 0xf01d8, None, 3, CpuSVME|Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|AddrPrefixOpReg|NoRex64, { Acc|Dword|Qword }
 vmsave, 0, 0xf01db, None, 3, CpuSVME, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
-vmsave, 1, 0xf01, 0xdb, 2, CpuSVME, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ImmExt|AddrPrefixOpReg|NoRex64, { Reg32|Reg64 }
+vmsave, 1, 0xf01db, None, 3, CpuSVME|CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|AddrPrefixOpReg, { Acc|Word|Dword }
+vmsave, 1, 0xf01db, None, 3, CpuSVME|Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|AddrPrefixOpReg|NoRex64, { Acc|Dword|Qword }
 
 
 // SSE4a instructions
@@ -4655,21 +4661,23 @@ vpclmulhqhqdq, 3, 0x6644, 0x11, 1, CpuVPCLMULQDQ|CpuAVX512F, Modrm|VexOpcode=2|V
 // CLZERO instructions
 
 clzero, 0, 0xf01fc, None, 3, CpuCLZERO, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
+clzero, 1, 0xf01fc, None, 3, CpuCLZERO|CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|AddrPrefixOpReg, { Acc|Word|Dword }
+clzero, 1, 0xf01fc, None, 3, CpuCLZERO|Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|AddrPrefixOpReg|NoRex64, { Acc|Dword|Qword }
 
 // CLZERO instructions end
 
 // MONITORX/MWAITX instructions
+
 monitorx, 0, 0xf01fa, None, 3, CpuMWAITX, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
-// Need to ensure only "monitorx %rax/%eax/%ax,%ecx,%edx" is accepted.
-monitorx, 3, 0xf01, 0xfa, 2, CpuMWAITX|CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ImmExt|AddrPrefixOpReg, { Reg16|Reg32, Reg32, Reg32 }
-monitorx, 3, 0xf01, 0xfa, 2, CpuMWAITX|Cpu64,   No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ImmExt|AddrPrefixOpReg|NoRex64, { Reg32|Reg64, Reg32, Reg32 }
+monitorx, 3, 0xf01fa, None, 3, CpuMWAITX|CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|AddrPrefixOpReg, { Acc|Word|Dword, RegC|Dword, RegD|Dword }
+monitorx, 3, 0xf01fa, None, 3, CpuMWAITX|Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|AddrPrefixOpReg|NoRex64, { Acc|Dword|Qword, RegC|Dword, RegD|Dword }
 // The 64-bit form exists only for compatibility with older gas.
-monitorx, 3, 0xf01, 0xfa, 2, CpuMWAITX|Cpu64,   No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ImmExt|AddrPrefixOpReg|NoRex64, { Reg32|Reg64, Reg64, Reg64 }
+monitorx, 3, 0xf01fa, None, 3, CpuMWAITX|Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|AddrPrefixOpReg|NoRex64, { Acc|Dword|Qword, RegC|Qword, RegD|Qword }
 
 mwaitx, 0, 0xf01fb, None, 3, CpuMWAITX, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
-// Need to ensure only "mwaitx %eax,%ecx,%ebx" is accepted.
 // The 64-bit form exists only for compatibility with older gas.
-mwaitx, 3, 0xf01, 0xfb, 2, CpuMWAITX, CheckRegSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ImmExt|NoRex64, { Reg32|Reg64, Reg32|Reg64, Reg32|Reg64 }
+mwaitx, 3, 0xf01fb, None, 3, CpuMWAITX, CheckRegSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|NoRex64, { Acc|Dword|Qword, RegC|Dword|Qword, RegB|Dword|Qword }
+
 // MONITORX/MWAITX instructions end
 
 // OSPKE instructions.
diff --git a/opcodes/i386-reg.tbl b/opcodes/i386-reg.tbl
index 5a569d2b358..9392f55a3ae 100644
--- a/opcodes/i386-reg.tbl
+++ b/opcodes/i386-reg.tbl
@@ -64,9 +64,9 @@ r14w, Class=Reg|Word, RegRex, 6, Dw2Inval, Dw2Inval
 r15w, Class=Reg|Word, RegRex, 7, Dw2Inval, Dw2Inval
 // 32 bit regs
 eax, Class=Reg|Instance=Accum|Dword|BaseIndex, 0, 0, 0, Dw2Inval
-ecx, Class=Reg|Dword|BaseIndex, 0, 1, 1, Dw2Inval
-edx, Class=Reg|Dword|BaseIndex, 0, 2, 2, Dw2Inval
-ebx, Class=Reg|Dword|BaseIndex, 0, 3, 3, Dw2Inval
+ecx, Class=Reg|Instance=RegC|Dword|BaseIndex, 0, 1, 1, Dw2Inval
+edx, Class=Reg|Instance=RegD|Dword|BaseIndex, 0, 2, 2, Dw2Inval
+ebx, Class=Reg|Instance=RegB|Dword|BaseIndex, 0, 3, 3, Dw2Inval
 esp, Class=Reg|Dword, 0, 4, 4, Dw2Inval
 ebp, Class=Reg|Dword|BaseIndex, 0, 5, 5, Dw2Inval
 esi, Class=Reg|Dword|BaseIndex, 0, 6, 6, Dw2Inval
@@ -80,9 +80,9 @@ r13d, Class=Reg|Dword|BaseIndex, RegRex, 5, Dw2Inval, Dw2Inval
 r14d, Class=Reg|Dword|BaseIndex, RegRex, 6, Dw2Inval, Dw2Inval
 r15d, Class=Reg|Dword|BaseIndex, RegRex, 7, Dw2Inval, Dw2Inval
 rax, Class=Reg|Instance=Accum|Qword|BaseIndex, 0, 0, Dw2Inval, 0
-rcx, Class=Reg|Qword|BaseIndex, 0, 1, Dw2Inval, 2
-rdx, Class=Reg|Qword|BaseIndex, 0, 2, Dw2Inval, 1
-rbx, Class=Reg|Qword|BaseIndex, 0, 3, Dw2Inval, 3
+rcx, Class=Reg|Instance=RegC|Qword|BaseIndex, 0, 1, Dw2Inval, 2
+rdx, Class=Reg|Instance=RegD|Qword|BaseIndex, 0, 2, Dw2Inval, 1
+rbx, Class=Reg|Instance=RegB|Qword|BaseIndex, 0, 3, Dw2Inval, 3
 rsp, Class=Reg|Qword, 0, 4, Dw2Inval, 7
 rbp, Class=Reg|Qword|BaseIndex, 0, 5, Dw2Inval, 6
 rsi, Class=Reg|Qword|BaseIndex, 0, 6, Dw2Inval, 4
diff --git a/opcodes/i386-tbl.h b/opcodes/i386-tbl.h
index d9843148ae9..917c1050856 100644
--- a/opcodes/i386-tbl.h
+++ b/opcodes/i386-tbl.h
@@ -17633,7 +17633,7 @@ const insn_template i386_optab[] =
       0 },
     { { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
-  { "monitor", 0xf01, 0xc8, 2, 3,
+  { "monitor", 0xf01c8, None, 3, 3,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -17641,16 +17641,16 @@ const insn_template i386_optab[] =
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0 } },
     { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
-      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0,
+      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,
       0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
       0 },
-    { { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+    { { { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } },
-      { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+      { { 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } },
-      { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+      { { 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
-  { "monitor", 0xf01, 0xc8, 2, 3,
+  { "monitor", 0xf01c8, None, 3, 3,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -17658,16 +17658,16 @@ const insn_template i386_optab[] =
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 } },
     { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
-      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0,
+      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0,
       0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
       0 },
-    { { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+    { { { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 1, 0, 0, 0, 0, 0, 0, 0 } },
-      { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+      { { 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } },
-      { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+      { { 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
-  { "monitor", 0xf01, 0xc8, 2, 3,
+  { "monitor", 0xf01c8, None, 3, 3,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -17675,14 +17675,14 @@ const insn_template i386_optab[] =
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 } },
     { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
-      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0,
+      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0,
       0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
       0 },
-    { { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+    { { { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 1, 0, 0, 0, 0, 0, 0, 0 } },
-      { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+      { { 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	  0, 1, 0, 0, 0, 0, 0, 0, 0 } },
-      { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+      { { 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	  0, 1, 0, 0, 0, 0, 0, 0, 0 } } } },
   { "movddup", 0xf212, None, 1, 2,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -17787,7 +17787,7 @@ const insn_template i386_optab[] =
       0 },
     { { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
-  { "mwait", 0xf01, 0xc9, 2, 2,
+  { "mwait", 0xf01c9, None, 3, 2,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -17795,12 +17795,12 @@ const insn_template i386_optab[] =
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } },
     { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 1, 1,
-      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0,
+      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0,
       0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
       0 },
-    { { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+    { { { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 1, 0, 0, 0, 0, 0, 0, 0 } },
-      { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+      { { 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 1, 0, 0, 0, 0, 0, 0, 0 } } } },
   { "vmcall", 0xf01c1, None, 3, 0,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -49866,20 +49866,35 @@ const insn_template i386_optab[] =
       0 },
     { { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
-  { "invlpga", 0xf01, 0xdf, 2, 2,
+  { "invlpga", 0xf01df, None, 3, 2,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } },
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0 } },
     { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
-      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0,
+      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,
       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
       0 },
-    { { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+    { { { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+	  0, 0, 0, 0, 0, 0, 0, 0, 0 } },
+      { { 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
+  { "invlpga", 0xf01df, None, 3, 2,
+    { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 } },
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
+      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0,
+      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+      0 },
+    { { { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 1, 0, 0, 0, 0, 0, 0, 0 } },
-      { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+      { { 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
   { "skinit", 0xf01de, None, 3, 0,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -49894,7 +49909,7 @@ const insn_template i386_optab[] =
       0 },
     { { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
-  { "skinit", 0xf01, 0xde, 2, 1,
+  { "skinit", 0xf01de, None, 3, 1,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -49902,10 +49917,10 @@ const insn_template i386_optab[] =
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } },
     { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
-      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0,
+      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
       0 },
-    { { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+    { { { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
   { "stgi", 0xf01dc, None, 3, 0,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -49933,18 +49948,31 @@ const insn_template i386_optab[] =
       0 },
     { { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
-  { "vmload", 0xf01, 0xda, 2, 1,
+  { "vmload", 0xf01da, None, 3, 1,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } },
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0 } },
     { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
-      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0,
+      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,
       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
       0 },
-    { { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+    { { { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
+  { "vmload", 0xf01da, None, 3, 1,
+    { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 } },
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
+      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0,
+      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+      0 },
+    { { { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 1, 0, 0, 0, 0, 0, 0, 0 } } } },
   { "vmmcall", 0xf01d9, None, 3, 0,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -49972,18 +50000,31 @@ const insn_template i386_optab[] =
       0 },
     { { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
-  { "vmrun", 0xf01, 0xd8, 2, 1,
+  { "vmrun", 0xf01d8, None, 3, 1,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } },
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0 } },
     { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
-      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0,
+      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,
       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
       0 },
-    { { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+    { { { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
+  { "vmrun", 0xf01d8, None, 3, 1,
+    { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 } },
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
+      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0,
+      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+      0 },
+    { { { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 1, 0, 0, 0, 0, 0, 0, 0 } } } },
   { "vmsave", 0xf01db, None, 3, 0,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -49998,18 +50039,31 @@ const insn_template i386_optab[] =
       0 },
     { { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
-  { "vmsave", 0xf01, 0xdb, 2, 1,
+  { "vmsave", 0xf01db, None, 3, 1,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } },
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0 } },
     { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
-      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0,
+      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,
       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
       0 },
-    { { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+    { { { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
+  { "vmsave", 0xf01db, None, 3, 1,
+    { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 } },
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
+      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0,
+      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+      0 },
+    { { { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 1, 0, 0, 0, 0, 0, 0, 0 } } } },
   { "movntsd", 0xf20f2b, None, 2, 2,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -61585,6 +61639,32 @@ const insn_template i386_optab[] =
       0 },
     { { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
+  { "clzero", 0xf01fc, None, 3, 1,
+    { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0 } },
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
+      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,
+      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+      0 },
+    { { { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
+  { "clzero", 0xf01fc, None, 3, 1,
+    { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 } },
+    { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
+      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0,
+      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+      0 },
+    { { { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+	  0, 1, 0, 0, 0, 0, 0, 0, 0 } } } },
   { "monitorx", 0xf01fa, None, 3, 0,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -61598,7 +61678,7 @@ const insn_template i386_optab[] =
       0 },
     { { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
-  { "monitorx", 0xf01, 0xfa, 2, 3,
+  { "monitorx", 0xf01fa, None, 3, 3,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -61606,16 +61686,16 @@ const insn_template i386_optab[] =
         0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0 } },
     { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
-      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0,
+      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,
       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
       0 },
-    { { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
+    { { { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } },
-      { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+      { { 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } },
-      { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+      { { 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
-  { "monitorx", 0xf01, 0xfa, 2, 3,
+  { "monitorx", 0xf01fa, None, 3, 3,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -61623,16 +61703,16 @@ const insn_template i386_optab[] =
         0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 } },
     { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
-      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0,
+      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0,
       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
       0 },
-    { { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+    { { { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 1, 0, 0, 0, 0, 0, 0, 0 } },
-      { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+      { { 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } },
-      { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+      { { 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
-  { "monitorx", 0xf01, 0xfa, 2, 3,
+  { "monitorx", 0xf01fa, None, 3, 3,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -61640,14 +61720,14 @@ const insn_template i386_optab[] =
         0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0 } },
     { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
-      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0,
+      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0,
       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
       0 },
-    { { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+    { { { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 1, 0, 0, 0, 0, 0, 0, 0 } },
-      { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+      { { 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	  0, 1, 0, 0, 0, 0, 0, 0, 0 } },
-      { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+      { { 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	  0, 1, 0, 0, 0, 0, 0, 0, 0 } } } },
   { "mwaitx", 0xf01fb, None, 3, 0,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -61662,7 +61742,7 @@ const insn_template i386_optab[] =
       0 },
     { { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	  0, 0, 0, 0, 0, 0, 0, 0, 0 } } } },
-  { "mwaitx", 0xf01, 0xfb, 2, 3,
+  { "mwaitx", 0xf01fb, None, 3, 3,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -61670,14 +61750,14 @@ const insn_template i386_optab[] =
         0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } },
     { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 1, 1,
-      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0,
+      1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0,
       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
       0 },
-    { { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+    { { { 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 1, 0, 0, 0, 0, 0, 0, 0 } },
-      { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+      { { 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 1, 0, 0, 0, 0, 0, 0, 0 } },
-      { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
+      { { 0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,
 	  0, 1, 0, 0, 0, 0, 0, 0, 0 } } } },
   { "rdpkru", 0xf01ee, None, 3, 0,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -62500,15 +62580,15 @@ const reg_entry i386_regtab[] =
 	0, 0, 0, 0, 0, 0, 0, 0, 0 } },
     0, 0, { 0, Dw2Inval } },
   { "ecx",
-    { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1,
+    { { 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1,
 	0, 0, 0, 0, 0, 0, 0, 0, 0 } },
     0, 1, { 1, Dw2Inval } },
   { "edx",
-    { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1,
+    { { 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1,
 	0, 0, 0, 0, 0, 0, 0, 0, 0 } },
     0, 2, { 2, Dw2Inval } },
   { "ebx",
-    { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1,
+    { { 1, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1,
 	0, 0, 0, 0, 0, 0, 0, 0, 0 } },
     0, 3, { 3, Dw2Inval } },
   { "esp",
@@ -62564,15 +62644,15 @@ const reg_entry i386_regtab[] =
 	0, 1, 0, 0, 0, 0, 0, 0, 0 } },
     0, 0, { Dw2Inval, 0 } },
   { "rcx",
-    { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0,
+    { { 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0,
 	0, 1, 0, 0, 0, 0, 0, 0, 0 } },
     0, 1, { Dw2Inval, 2 } },
   { "rdx",
-    { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0,
+    { { 1, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0,
 	0, 1, 0, 0, 0, 0, 0, 0, 0 } },
     0, 2, { Dw2Inval, 1 } },
   { "rbx",
-    { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0,
+    { { 1, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0,
 	0, 1, 0, 0, 0, 0, 0, 0, 0 } },
     0, 3, { Dw2Inval, 3 } },
   { "rsp",