Enable Intel CLDEMOTE instruction.

gas/
	* config/tc-i386.c (cpu_arch): Add .cldemote.
	* doc/c-i386.texi: Document cldemote/.cldemote.
	* testsuite/gas/i386/cldemote-intel.d: New.
	* testsuite/gas/i386/cldemote.d: Likewise.
	* testsuite/gas/i386/cldemote.s: Likewise.
	* testsuite/gas/i386/i386.exp: Run new tests.
	* testsuite/gas/i386/x86-64-cldemote-intel.d: New.
	* testsuite/gas/i386/x86-64-cldemote.d: Likewise.
	* testsuite/gas/i386/x86-64-cldemote.s: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-nops.d: Remove 0x0f1c
	NOP encoding that maps to cldemote.
	* testsuite/gas/i386/nops.d: Likewise.
	* testsuite/gas/i386/nops.s: Likewise.
	* testsuite/gas/i386/x86-64-nops.d: Likewise.
	* testsuite/gas/i386/x86-64-nops.s: Likewise.

opcode/
	* i386-dis.c: Add REG_0F1C_MOD_0, MOD_0F1C_PREFIX_0,
	PREFIX_0F1C.
	* i386-gen.c (cpu_flag_init): Add CPU_CLDEMOTE_FLAGS,
	(cpu_flags): Add CpuCLDEMOTE.
	* i386-init.h: Regenerate.
	* i386-opc.h (enum): Add CpuCLDEMOTE,
	(i386_cpu_flags): Add cpucldemote.
	* i386-opc.tbl: Add cldemote.
	* i386-tbl.h: Regenerate.

gas/ChangeLog

@@ -1,3 +1,21 @@
+2018-04-17  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
+
+	* config/tc-i386.c (cpu_arch): Add .cldemote.
+	* doc/c-i386.texi: Document cldemote/.cldemote.
+	* testsuite/gas/i386/cldemote-intel.d: New.
+	* testsuite/gas/i386/cldemote.d: Likewise.
+	* testsuite/gas/i386/cldemote.s: Likewise.
+	* testsuite/gas/i386/i386.exp: Run new tests.
+	* testsuite/gas/i386/x86-64-cldemote-intel.d: New.
+	* testsuite/gas/i386/x86-64-cldemote.d: Likewise.
+	* testsuite/gas/i386/x86-64-cldemote.s: Likewise.
+	* testsuite/gas/i386/ilp32/x86-64-nops.d: Remove 0x0f1c
+	NOP encoding that maps to cldemote.
+	* testsuite/gas/i386/nops.d: Likewise.
+	* testsuite/gas/i386/nops.s: Likewise.
+	* testsuite/gas/i386/x86-64-nops.d: Likewise.
+	* testsuite/gas/i386/x86-64-nops.s: Likewise.
+
 2018-04-16  Nick Clifton  <nickc@redhat.com>
 
 	PR 23054

gas/config/tc-i386.c

@@ -1027,6 +1027,8 @@ static const arch_entry cpu_arch[] =
     CPU_PCONFIG_FLAGS, 0 },
   { STRING_COMMA_LEN (".waitpkg"), PROCESSOR_UNKNOWN,
     CPU_WAITPKG_FLAGS, 0 },
+  { STRING_COMMA_LEN (".cldemote"), PROCESSOR_UNKNOWN,
+    CPU_CLDEMOTE_FLAGS, 0 },
 };
 
 static const noarch_entry cpu_noarch[] =

gas/doc/c-i386.texi

@@ -232,6 +232,7 @@ accept various extension mnemonics.  For example,
 @code{wbnoinvd},
 @code{pconfig},
 @code{waitpkg},
+@code{cldemote},
 @code{lwp},
 @code{fma4},
 @code{xop},
@@ -1273,7 +1274,7 @@ supported on the CPU specified.  The choices for @var{cpu_type} are:
 @item @samp{.avx512_vpopcntdq} @tab @samp{.avx512_vbmi2} @tab @samp{.avx512_vnni}
 @item @samp{.avx512_bitalg}
 @item @samp{.clwb} @tab @samp{.rdpid} @tab @samp{.ptwrite} @tab @item @samp{.ibt}
-@item @samp{.wbnoinvd} @tab @samp{.pconfig} @tab @samp{.waitpkg}
+@item @samp{.wbnoinvd} @tab @samp{.pconfig} @tab @samp{.waitpkg} @tab @samp{.cldemote}
 @item @samp{.shstk} @tab @samp{.gfni} @tab @samp{.vaes} @tab @samp{.vpclmulqdq}
 @item @samp{.3dnow} @tab @samp{.3dnowa} @tab @samp{.sse4a} @tab @samp{.sse5}
 @item @samp{.syscall} @tab @samp{.rdtscp} @tab @samp{.svme} @tab @samp{.abm}

gas/testsuite/gas/i386/cldemote-intel.d

@@ -0,0 +1,16 @@
+#as:
+#objdump: -dw -Mintel
+#name: i386 CLDEMOTE insns (Intel disassembly)
+#source: cldemote.s
+
+.*: +file format .*
+
+
+Disassembly of section \.text:
+
+00000000 <_start>:
+[ 	]*[a-f0-9]+:[ 	]*0f 1c 01[ 	]*cldemote BYTE PTR \[ecx\]
+[ 	]*[a-f0-9]+:[ 	]*0f 1c 84 f4 c0 1d fe ff[ 	]*cldemote BYTE PTR \[esp\+esi\*8-0x1e240\]
+[ 	]*[a-f0-9]+:[ 	]*0f 1c 01[ 	]*cldemote BYTE PTR \[ecx\]
+[ 	]*[a-f0-9]+:[ 	]*0f 1c 84 f4 c0 1d fe ff[ 	]*cldemote BYTE PTR \[esp\+esi\*8-0x1e240\]
+#pass

gas/testsuite/gas/i386/cldemote.d

@@ -0,0 +1,16 @@
+#as:
+#objdump: -dw
+#name: i386 CLDEMOTE insns
+#source: cldemote.s
+
+.*: +file format .*
+
+
+Disassembly of section \.text:
+
+00000000 <_start>:
+[ 	]*[a-f0-9]+:[ 	]*0f 1c 01[ 	]*cldemote \(%ecx\)
+[ 	]*[a-f0-9]+:[ 	]*0f 1c 84 f4 c0 1d fe ff[ 	]*cldemote -0x1e240\(%esp,%esi,8\)
+[ 	]*[a-f0-9]+:[ 	]*0f 1c 01[ 	]*cldemote \(%ecx\)
+[ 	]*[a-f0-9]+:[ 	]*0f 1c 84 f4 c0 1d fe ff[ 	]*cldemote -0x1e240\(%esp,%esi,8\)
+#pass

gas/testsuite/gas/i386/cldemote.s

@@ -0,0 +1,12 @@
+# Check 32bit CLDEMOTE instructions
+
+	.allow_index_reg
+	.text
+_start:
+
+	cldemote	(%ecx)
+	cldemote	-123456(%esp,%esi,8)
+
+	.intel_syntax noprefix
+	cldemote	BYTE PTR [ecx]
+	cldemote	BYTE PTR [esp+esi*8-123456]

gas/testsuite/gas/i386/i386.exp

@@ -424,6 +424,8 @@ if [expr ([istarget "i*86-*-*"] ||  [istarget "x86_64-*-*"]) && [gas_32_check]]
     run_dump_test "pconfig-intel"
     run_dump_test "waitpkg"
     run_dump_test "waitpkg-intel"
+    run_dump_test "cldemote"
+    run_dump_test "cldemote-intel"
     run_list_test "avx512vl-1" "-al"
     run_list_test "avx512vl-2" "-al"
     run_list_test "avx512vl-plain" "-al"
@@ -914,6 +916,8 @@ if [expr ([istarget "i*86-*-*"] || [istarget "x86_64-*-*"]) && [gas_64_check]] t
     run_dump_test "x86-64-pconfig-intel"
     run_dump_test "x86-64-waitpkg"
     run_dump_test "x86-64-waitpkg-intel"
+    run_dump_test "x86-64-cldemote"
+    run_dump_test "x86-64-cldemote-intel"
     run_dump_test "x86-64-fence-as-lock-add-yes"
     run_dump_test "x86-64-fence-as-lock-add-no"
     run_dump_test "x86-64-pr20141"

gas/testsuite/gas/i386/ilp32/x86-64-nops.d

@@ -33,12 +33,10 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	0f 1e 9c 1d 11 22 33 44 	nopl   0x44332211\(%rbp,%rbx,1\)
 [ 	]*[a-f0-9]+:	0f 1f 9c 1d 11 22 33 44 	nopl   0x44332211\(%rbp,%rbx,1\)
 [ 	]*[a-f0-9]+:	0f 19 04 60          	nopl   \(%rax,%riz,2\)
-[ 	]*[a-f0-9]+:	0f 1c 04 60          	nopl   \(%rax,%riz,2\)
 [ 	]*[a-f0-9]+:	0f 1d 04 60          	nopl   \(%rax,%riz,2\)
 [ 	]*[a-f0-9]+:	0f 1e 04 60          	nopl   \(%rax,%riz,2\)
 [ 	]*[a-f0-9]+:	0f 1f 04 60          	nopl   \(%rax,%riz,2\)
 [ 	]*[a-f0-9]+:	0f 19 04 59          	nopl   \(%rcx,%rbx,2\)
-[ 	]*[a-f0-9]+:	0f 1c 04 59          	nopl   \(%rcx,%rbx,2\)
 [ 	]*[a-f0-9]+:	0f 1d 04 59          	nopl   \(%rcx,%rbx,2\)
 [ 	]*[a-f0-9]+:	0f 1e 04 59          	nopl   \(%rcx,%rbx,2\)
 [ 	]*[a-f0-9]+:	0f 1f 04 59          	nopl   \(%rcx,%rbx,2\)

gas/testsuite/gas/i386/nops.d

@@ -32,12 +32,10 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	0f 1e 9c 1d 11 22 33 44 	nopl   0x44332211\(%ebp,%ebx,1\)
 [ 	]*[a-f0-9]+:	0f 1f 9c 1d 11 22 33 44 	nopl   0x44332211\(%ebp,%ebx,1\)
 [ 	]*[a-f0-9]+:	0f 19 04 60          	nopl   \(%eax,%eiz,2\)
-[ 	]*[a-f0-9]+:	0f 1c 04 60          	nopl   \(%eax,%eiz,2\)
 [ 	]*[a-f0-9]+:	0f 1d 04 60          	nopl   \(%eax,%eiz,2\)
 [ 	]*[a-f0-9]+:	0f 1e 04 60          	nopl   \(%eax,%eiz,2\)
 [ 	]*[a-f0-9]+:	0f 1f 04 60          	nopl   \(%eax,%eiz,2\)
 [ 	]*[a-f0-9]+:	0f 19 04 59          	nopl   \(%ecx,%ebx,2\)
-[ 	]*[a-f0-9]+:	0f 1c 04 59          	nopl   \(%ecx,%ebx,2\)
 [ 	]*[a-f0-9]+:	0f 1d 04 59          	nopl   \(%ecx,%ebx,2\)
 [ 	]*[a-f0-9]+:	0f 1e 04 59          	nopl   \(%ecx,%ebx,2\)
 [ 	]*[a-f0-9]+:	0f 1f 04 59          	nopl   \(%ecx,%ebx,2\)

gas/testsuite/gas/i386/nops.s

@@ -33,13 +33,13 @@
 	.byte 0x0f, 0x1f, 0x9C, 0x1D, 0x11, 0x22, 0x33, 0x44
 
 	.byte 0x0f, 0x19, 0x04, 0x60
-	.byte 0x0f, 0x1c, 0x04, 0x60
+#	.byte 0x0f, 0x1c, 0x04, 0x60	Now it became cldemote (%eax,%eiz,2)
 	.byte 0x0f, 0x1d, 0x04, 0x60
 	.byte 0x0f, 0x1e, 0x04, 0x60
 	.byte 0x0f, 0x1f, 0x04, 0x60
 
 	.byte 0x0f, 0x19, 0x04, 0x59
-	.byte 0x0f, 0x1c, 0x04, 0x59
+#	.byte 0x0f, 0x1c, 0x04, 0x59	Now it became cldemote (%eax,%ebx,2)
 	.byte 0x0f, 0x1d, 0x04, 0x59
 	.byte 0x0f, 0x1e, 0x04, 0x59
 	.byte 0x0f, 0x1f, 0x04, 0x59

gas/testsuite/gas/i386/x86-64-cldemote-intel.d

@@ -0,0 +1,16 @@
+#as:
+#objdump: -dw -Mintel
+#name: x86_64 CLDEMOTE insns (Intel disassembly)
+#source: x86-64-cldemote.s
+
+.*: +file format .*
+
+
+Disassembly of section \.text:
+
+0+ <_start>:
+[ 	]*[a-f0-9]+:[ 	]*0f 1c 01[ 	]*cldemote BYTE PTR \[rcx\]
+[ 	]*[a-f0-9]+:[ 	]*42 0f 1c 84 f0 23 01 00 00[ 	]*cldemote BYTE PTR \[rax\+r14\*8\+0x123\]
+[ 	]*[a-f0-9]+:[ 	]*0f 1c 01[ 	]*cldemote BYTE PTR \[rcx\]
+[ 	]*[a-f0-9]+:[ 	]*42 0f 1c 84 f0 34 12 00 00[ 	]*cldemote BYTE PTR \[rax\+r14\*8\+0x1234\]
+#pass

gas/testsuite/gas/i386/x86-64-cldemote.d

@@ -0,0 +1,16 @@
+#as:
+#objdump: -dw
+#name: x86_64 CLDEMOTE insns
+#source: x86-64-cldemote.s
+
+.*: +file format .*
+
+
+Disassembly of section \.text:
+
+0+ <_start>:
+[ 	]*[a-f0-9]+:[ 	]*0f 1c 01[ 	]*cldemote \(%rcx\)
+[ 	]*[a-f0-9]+:[ 	]*42 0f 1c 84 f0 23 01 00 00[ 	]*cldemote 0x123\(%rax,%r14,8\)
+[ 	]*[a-f0-9]+:[ 	]*0f 1c 01[ 	]*cldemote \(%rcx\)
+[ 	]*[a-f0-9]+:[ 	]*42 0f 1c 84 f0 34 12 00 00[ 	]*cldemote 0x1234\(%rax,%r14,8\)
+#pass

gas/testsuite/gas/i386/x86-64-cldemote.s

@@ -0,0 +1,12 @@
+# Check 64bit CLDEMOTE instructions
+
+	.allow_index_reg
+	.text
+_start:
+
+	cldemote	(%rcx)
+	cldemote	0x123(%rax,%r14,8)
+
+	.intel_syntax noprefix
+	cldemote	BYTE PTR [rcx]
+	cldemote	BYTE PTR [rax+r14*8+0x1234]

gas/testsuite/gas/i386/x86-64-nops.d

@@ -32,12 +32,10 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	0f 1e 9c 1d 11 22 33 44 	nopl   0x44332211\(%rbp,%rbx,1\)
 [ 	]*[a-f0-9]+:	0f 1f 9c 1d 11 22 33 44 	nopl   0x44332211\(%rbp,%rbx,1\)
 [ 	]*[a-f0-9]+:	0f 19 04 60          	nopl   \(%rax,%riz,2\)
-[ 	]*[a-f0-9]+:	0f 1c 04 60          	nopl   \(%rax,%riz,2\)
 [ 	]*[a-f0-9]+:	0f 1d 04 60          	nopl   \(%rax,%riz,2\)
 [ 	]*[a-f0-9]+:	0f 1e 04 60          	nopl   \(%rax,%riz,2\)
 [ 	]*[a-f0-9]+:	0f 1f 04 60          	nopl   \(%rax,%riz,2\)
 [ 	]*[a-f0-9]+:	0f 19 04 59          	nopl   \(%rcx,%rbx,2\)
-[ 	]*[a-f0-9]+:	0f 1c 04 59          	nopl   \(%rcx,%rbx,2\)
 [ 	]*[a-f0-9]+:	0f 1d 04 59          	nopl   \(%rcx,%rbx,2\)
 [ 	]*[a-f0-9]+:	0f 1e 04 59          	nopl   \(%rcx,%rbx,2\)
 [ 	]*[a-f0-9]+:	0f 1f 04 59          	nopl   \(%rcx,%rbx,2\)

gas/testsuite/gas/i386/x86-64-nops.s

@@ -33,13 +33,13 @@
 	.byte 0x0f, 0x1f, 0x9C, 0x1D, 0x11, 0x22, 0x33, 0x44
 
 	.byte 0x0f, 0x19, 0x04, 0x60
-	.byte 0x0f, 0x1c, 0x04, 0x60
+#	.byte 0x0f, 0x1c, 0x04, 0x60	Now it became cldemote (%rcx,%riz,2)
 	.byte 0x0f, 0x1d, 0x04, 0x60
 	.byte 0x0f, 0x1e, 0x04, 0x60
 	.byte 0x0f, 0x1f, 0x04, 0x60
 
 	.byte 0x0f, 0x19, 0x04, 0x59
-	.byte 0x0f, 0x1c, 0x04, 0x59
+#	.byte 0x0f, 0x1c, 0x04, 0x59	Now it became cldemote (%rcx,%rbx,2)
 	.byte 0x0f, 0x1d, 0x04, 0x59
 	.byte 0x0f, 0x1e, 0x04, 0x59
 	.byte 0x0f, 0x1f, 0x04, 0x59

opcodes/ChangeLog

@@ -1,3 +1,15 @@
+2018-04-17  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>
+
+	* i386-dis.c: Add REG_0F1C_MOD_0, MOD_0F1C_PREFIX_0,
+	PREFIX_0F1C.
+	* i386-gen.c (cpu_flag_init): Add CPU_CLDEMOTE_FLAGS,
+	(cpu_flags): Add CpuCLDEMOTE.
+	* i386-init.h: Regenerate.
+	* i386-opc.h (enum): Add CpuCLDEMOTE,
+	(i386_cpu_flags): Add cpucldemote.
+	* i386-opc.tbl: Add cldemote.
+	* i386-tbl.h: Regenerate.
+
 2018-04-16  Alan Modra  <amodra@gmail.com>
 
 	* Makefile.am: Remove sh5 and sh64 support.

opcodes/i386-dis.c

@@ -738,6 +738,7 @@ enum
   REG_0F01,
   REG_0F0D,
   REG_0F18,
+  REG_0F1C_MOD_0,
   REG_0F1E_MOD_3,
   REG_0F71,
   REG_0F72,
@@ -792,6 +793,7 @@ enum
   MOD_0F1A_PREFIX_0,
   MOD_0F1B_PREFIX_0,
   MOD_0F1B_PREFIX_1,
+  MOD_0F1C_PREFIX_0,
   MOD_0F1E_PREFIX_1,
   MOD_0F24,
   MOD_0F26,
@@ -970,6 +972,7 @@ enum
   PREFIX_0F16,
   PREFIX_0F1A,
   PREFIX_0F1B,
+  PREFIX_0F1C,
   PREFIX_0F1E,
   PREFIX_0F2A,
   PREFIX_0F2B,
@@ -2898,7 +2901,7 @@ static const struct dis386 dis386_twobyte[] = {
   { "nopQ",		{ Ev }, 0 },
   { PREFIX_TABLE (PREFIX_0F1A) },
   { PREFIX_TABLE (PREFIX_0F1B) },
-  { "nopQ",		{ Ev }, 0 },
+  { PREFIX_TABLE (PREFIX_0F1C) },
   { "nopQ",		{ Ev }, 0 },
   { PREFIX_TABLE (PREFIX_0F1E) },
   { "nopQ",		{ Ev }, 0 },
@@ -3650,6 +3653,17 @@ static const struct dis386 reg_table[][8] = {
     { MOD_TABLE (MOD_0F18_REG_6) },
     { MOD_TABLE (MOD_0F18_REG_7) },
   },
+  /* REG_0F1C_MOD_0 */
+  {
+    { "cldemote",	{ Mb }, 0 },
+    { "nopQ",		{ Ev }, 0 },
+    { "nopQ",		{ Ev }, 0 },
+    { "nopQ",		{ Ev }, 0 },
+    { "nopQ",		{ Ev }, 0 },
+    { "nopQ",		{ Ev }, 0 },
+    { "nopQ",		{ Ev }, 0 },
+    { "nopQ",		{ Ev }, 0 },
+  },
   /* REG_0F1E_MOD_3 */
   {
     { "nopQ",		{ Ev }, 0 },
@@ -3901,6 +3915,14 @@ static const struct dis386 prefix_table[][4] = {
     { "bndcn",  { Gbnd, Ev_bnd }, 0 },
   },
 
+  /* PREFIX_0F1C */
+  {
+    { MOD_TABLE (MOD_0F1C_PREFIX_0) },
+    { "nopQ",	{ Ev }, PREFIX_OPCODE },
+    { "nopQ",	{ Ev }, PREFIX_OPCODE },
+    { "nopQ",	{ Ev }, PREFIX_OPCODE },
+  },
+
   /* PREFIX_0F1E */
   {
     { "nopQ",	{ Ev }, PREFIX_OPCODE },
@@ -11620,6 +11642,11 @@ static const struct dis386 mod_table[][2] = {
     { "bndmk",		{ Gbnd, Ev_bnd }, 0 },
     { "nopQ",		{ Ev }, 0 },
   },
+  {
+    /* MOD_0F1C_PREFIX_0 */
+    { REG_TABLE (REG_0F1C_MOD_0) },
+    { "nopQ",		{ Ev }, 0 },
+  },
   {
     /* MOD_0F1E_PREFIX_1 */
     { "nopQ",		{ Ev }, 0 },

opcodes/i386-gen.c

@@ -285,6 +285,8 @@ static initializer cpu_flag_init[] =
     "CpuPCONFIG" },
   { "CPU_WAITPKG_FLAGS",
     "CpuWAITPKG" },
+  { "CPU_CLDEMOTE_FLAGS",
+    "CpuCLDEMOTE" },
   { "CPU_ANY_X87_FLAGS",
     "CPU_ANY_287_FLAGS|Cpu8087" },
   { "CPU_ANY_287_FLAGS",
@@ -578,6 +580,7 @@ static bitfield cpu_flags[] =
   BITFIELD (CpuWBNOINVD),
   BITFIELD (CpuPCONFIG),
   BITFIELD (CpuWAITPKG),
+  BITFIELD (CpuCLDEMOTE),
   BITFIELD (CpuRegMMX),
   BITFIELD (CpuRegXMM),
   BITFIELD (CpuRegYMM),

opcodes/i386-opc.h

@@ -229,6 +229,8 @@ enum
   CpuPCONFIG,
   /* WAITPKG instructions required */
   CpuWAITPKG,
+  /* CLDEMOTE instruction required */
+  CpuCLDEMOTE,
   /* MMX register support required */
   CpuRegMMX,
   /* XMM register support required */
@@ -361,6 +363,7 @@ typedef union i386_cpu_flags
       unsigned int cpuwbnoinvd:1;
       unsigned int cpupconfig:1;
       unsigned int cpuwaitpkg:1;
+      unsigned int cpucldemote:1;
       unsigned int cpuregmmx:1;
       unsigned int cpuregxmm:1;
       unsigned int cpuregymm:1;

opcodes/i386-opc.tbl

@@ -5909,3 +5909,9 @@ tpause, 1, 0x660fae, 0x6, 2, CpuWAITPKG, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|N
 umwait, 1, 0xf20fae, 0x6, 2, CpuWAITPKG, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|NoRex64, { Reg32|Reg64 }
 
 // WAITPKG instructions end.
+
+// CLDEMOTE instructions.
+
+cldemote, 1, 0x0f1c, 0x0, 2, CpuCLDEMOTE, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Anysize|BaseIndex }
+
+// CLDEMOTE instructions end.