[5/5] Support Intel PBNDKB

diff --git a/gas/NEWS b/gas/NEWS
index 26e75bde391..1ed043511eb 100644
--- a/gas/NEWS
+++ b/gas/NEWS
@@ -1,5 +1,7 @@ 
 -*- text -*-
 
+* Add support for Intel PBNDKB instructions.
+
 * Add support for Intel SM4 instructions.
 
 * Add support for Intel SM3 instructions.
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c
index 686dd4c70f4..e35e2660ed5 100644
--- a/gas/config/tc-i386.c
+++ b/gas/config/tc-i386.c
@@ -1155,6 +1155,7 @@  static const arch_entry cpu_arch[] =
   SUBARCH (sha512, SHA512, ANY_SHA512, false),
   SUBARCH (sm3, SM3, ANY_SM3, false),
   SUBARCH (sm4, SM4, ANY_SM4, false),
+  SUBARCH (pbndkb, PBNDKB, PBNDKB, false),
 };
 
 #undef SUBARCH
diff --git a/gas/doc/c-i386.texi b/gas/doc/c-i386.texi
index 54b0d7d738c..dd06282a5a3 100644
--- a/gas/doc/c-i386.texi
+++ b/gas/doc/c-i386.texi
@@ -211,6 +211,7 @@  accept various extension mnemonics.  For example,
 @code{sha512},
 @code{sm3},
 @code{sm4},
+@code{pbndkb},
 @code{amx_int8},
 @code{amx_bf16},
 @code{amx_fp16},
@@ -1641,6 +1642,7 @@  supported on the CPU specified.  The choices for @var{cpu_type} are:
 @item @samp{.cmpccxadd} @tab @samp{.wrmsrns} @tab @samp{.msrlist}
 @item @samp{.avx_ne_convert} @tab @samp{.rao_int} @tab @samp{.fred} @tab @samp{.lkgs}
 @item @samp{.avx_vnni_int16} @tab @samp{.sha512} @tab @samp{.sm3} @tab @samp{.sm4}
+@item @samp{.pbndkb}
 @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{.movdiri} @tab @samp{.movdir64b} @tab @samp{.enqcmd} @tab @samp{.tsxldtrk}
diff --git a/gas/testsuite/gas/i386/i386.exp b/gas/testsuite/gas/i386/i386.exp
index 5e575660d7c..90f6e20bf5a 100644
--- a/gas/testsuite/gas/i386/i386.exp
+++ b/gas/testsuite/gas/i386/i386.exp
@@ -504,6 +504,7 @@  if [gas_32_check] then {
     run_dump_test "sm3-intel"
     run_dump_test "sm4"
     run_dump_test "sm4-intel"
+    run_list_test "pbndkb-inval"
     run_list_test "sg"
     run_dump_test "clzero"
     run_dump_test "invlpgb"
diff --git a/gas/testsuite/gas/i386/pbndkb-inval.l b/gas/testsuite/gas/i386/pbndkb-inval.l
new file mode 100644
index 00000000000..673bfff67e7
--- /dev/null
+++ b/gas/testsuite/gas/i386/pbndkb-inval.l
@@ -0,0 +1,2 @@ 
+.* Assembler messages:
+.*:6: Error: `pbndkb' is only supported in 64-bit mode
diff --git a/gas/testsuite/gas/i386/pbndkb-inval.s b/gas/testsuite/gas/i386/pbndkb-inval.s
new file mode 100644
index 00000000000..ac8aa00f8d1
--- /dev/null
+++ b/gas/testsuite/gas/i386/pbndkb-inval.s
@@ -0,0 +1,6 @@ 
+# Check Illegal PBNDKB instructions
+
+	.allow_index_reg
+	.text
+_start:
+	pbndkb		 #PBNDKB 
diff --git a/gas/testsuite/gas/i386/x86-64-pbndkb-intel.d b/gas/testsuite/gas/i386/x86-64-pbndkb-intel.d
new file mode 100644
index 00000000000..0ac10b2d1ba
--- /dev/null
+++ b/gas/testsuite/gas/i386/x86-64-pbndkb-intel.d
@@ -0,0 +1,12 @@ 
+#as:
+#objdump: -dw -Mintel
+#name: x86_64 PBNDKB insns (Intel disassembly)
+#source: x86-64-pbndkb.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+0+ <_start>:
+\s*[a-f0-9]+:\s*0f 01 c7\s+pbndkb
+\s*[a-f0-9]+:\s*0f 01 c7\s+pbndkb
diff --git a/gas/testsuite/gas/i386/x86-64-pbndkb.d b/gas/testsuite/gas/i386/x86-64-pbndkb.d
new file mode 100644
index 00000000000..cff4f509194
--- /dev/null
+++ b/gas/testsuite/gas/i386/x86-64-pbndkb.d
@@ -0,0 +1,12 @@ 
+#as:
+#objdump: -dw
+#name: x86_64 PBNDKB insns
+#source: x86-64-pbndkb.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+0+ <_start>:
+\s*[a-f0-9]+:\s*0f 01 c7\s+pbndkb
+\s*[a-f0-9]+:\s*0f 01 c7\s+pbndkb
diff --git a/gas/testsuite/gas/i386/x86-64-pbndkb.s b/gas/testsuite/gas/i386/x86-64-pbndkb.s
new file mode 100644
index 00000000000..defcce9cb08
--- /dev/null
+++ b/gas/testsuite/gas/i386/x86-64-pbndkb.s
@@ -0,0 +1,9 @@ 
+# Check 64bit PBNDKB instructions
+
+	.allow_index_reg
+	.text
+_start:
+	pbndkb		 #PBNDKB 
+
+.intel_syntax noprefix
+	pbndkb		 #PBNDKB 
diff --git a/gas/testsuite/gas/i386/x86-64.exp b/gas/testsuite/gas/i386/x86-64.exp
index 36bde0ac372..5e329147ffd 100644
--- a/gas/testsuite/gas/i386/x86-64.exp
+++ b/gas/testsuite/gas/i386/x86-64.exp
@@ -446,6 +446,8 @@  run_dump_test "x86-64-sm3"
 run_dump_test "x86-64-sm3-intel"
 run_dump_test "x86-64-sm4"
 run_dump_test "x86-64-sm4-intel"
+run_dump_test "x86-64-pbndkb"
+run_dump_test "x86-64-pbndkb-intel"
 run_dump_test "x86-64-clzero"
 run_dump_test "x86-64-mwaitx-bdver4"
 run_list_test "x86-64-mwaitx-reg"
diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c
index e21ad7ae005..c28522d4bcc 100644
--- a/opcodes/i386-dis.c
+++ b/opcodes/i386-dis.c
@@ -924,6 +924,7 @@  enum
   PREFIX_90 = 0,
   PREFIX_0F00_REG_6_X86_64,
   PREFIX_0F01_REG_0_MOD_3_RM_6,
+  PREFIX_0F01_REG_0_MOD_3_RM_7,
   PREFIX_0F01_REG_1_RM_2,
   PREFIX_0F01_REG_1_RM_4,
   PREFIX_0F01_REG_1_RM_5,
@@ -1198,6 +1199,7 @@  enum
   X86_64_0F01_REG_0,
   X86_64_0F01_REG_0_MOD_3_RM_6_P_1,
   X86_64_0F01_REG_0_MOD_3_RM_6_P_3,
+  X86_64_0F01_REG_0_MOD_3_RM_7_P_0,
   X86_64_0F01_REG_1,
   X86_64_0F01_REG_1_RM_2_PREFIX_1,
   X86_64_0F01_REG_1_RM_2_PREFIX_3,
@@ -2910,6 +2912,11 @@  static const struct dis386 prefix_table[][4] = {
     { X86_64_TABLE (X86_64_0F01_REG_0_MOD_3_RM_6_P_3) },
   },
 
+  /* PREFIX_0F01_REG_0_MOD_3_RM_7 */
+  {
+    { X86_64_TABLE (X86_64_0F01_REG_0_MOD_3_RM_7_P_0) },
+  },
+
   /* PREFIX_0F01_REG_1_RM_2 */
   {
     { "clac",		{ Skip_MODRM }, 0 },
@@ -4194,6 +4201,12 @@  static const struct dis386 x86_64_table[][2] = {
     { "rdmsrlist",	{ Skip_MODRM }, 0 },
   },
 
+  /* X86_64_0F01_REG_0_MOD_3_RM_7_P_0 */
+  {
+    { Bad_Opcode },
+    { "pbndkb",		{ Skip_MODRM }, 0 },
+  },
+
   /* X86_64_0F01_REG_1 */
   {
     { "sidt{Q|Q}", { M }, 0 },
@@ -8190,6 +8203,7 @@  static const struct dis386 rm_table[][8] = {
     { "vmxoff",		{ Skip_MODRM }, 0 },
     { "pconfig",	{ Skip_MODRM }, 0 },
     { PREFIX_TABLE (PREFIX_0F01_REG_0_MOD_3_RM_6) },
+    { PREFIX_TABLE (PREFIX_0F01_REG_0_MOD_3_RM_7) },
   },
   {
     /* RM_0F01_REG_1 */
diff --git a/opcodes/i386-gen.c b/opcodes/i386-gen.c
index 24a9943da47..17f17d38d35 100644
--- a/opcodes/i386-gen.c
+++ b/opcodes/i386-gen.c
@@ -378,6 +378,7 @@  static bitfield cpu_flags[] =
   BITFIELD (SHA512),
   BITFIELD (SM3),
   BITFIELD (SM4),
+  BITFIELD (PBNDKB),
   BITFIELD (MWAITX),
   BITFIELD (CLZERO),
   BITFIELD (OSPKE),
diff --git a/opcodes/i386-opc.h b/opcodes/i386-opc.h
index fcbdb4c5f8d..62067dde5a6 100644
--- a/opcodes/i386-opc.h
+++ b/opcodes/i386-opc.h
@@ -241,6 +241,8 @@  enum
   CpuSM3,
   /* Intel SM4 Instructions support required.  */
   CpuSM4,
+  /* Intel PBNDKB Instructions support required.  */
+  CpuPBNDKB,
   /* mwaitx instruction required */
   CpuMWAITX,
   /* Clzero instruction required */
@@ -442,6 +444,7 @@  typedef union i386_cpu_flags
       unsigned int cpusha512:1;
       unsigned int cpusm3:1;
       unsigned int cpusm4:1;
+      unsigned int cpupbndkb:1;
       unsigned int cpumwaitx:1;
       unsigned int cpuclzero:1;
       unsigned int cpuospke:1;
diff --git a/opcodes/i386-opc.tbl b/opcodes/i386-opc.tbl
index eca60b467f2..6bd0f505118 100644
--- a/opcodes/i386-opc.tbl
+++ b/opcodes/i386-opc.tbl
@@ -3397,3 +3397,9 @@  vsm4key4, 0xf3da, SM4, Modrm|Space0F38|Vex|VexVVVV|VexW0|CheckOperandSize|NoSuf,
 vsm4rnds4, 0xf2da, SM4, Modrm|Space0F38|Vex|VexVVVV|VexW0|CheckOperandSize|NoSuf, { RegXMM|RegYMM|Unspecified|BaseIndex, RegXMM|RegYMM, RegXMM|RegYMM }
 
 // SM4 instructions end.
+
+// PBNDKB instruction.
+
+pbndkb, 0x0f01c7, PBNDKB|x64, NoSuf, {}
+
+// PBNDKB instruction end.