Support Intel WRMSRNS

gas/ChangeLog:

        * NEWS: Support Intel WRMSRNS.
        * config/tc-i386.c: Add wrmsrns.
        * doc/c-i386.texi: Document .wrmsrns.
        * testsuite/gas/i386/i386.exp: Add WRMSRNS tests.
        * testsuite/gas/i386/wrmsrns-intel.d: New test.
        * testsuite/gas/i386/wrmsrns.d: Ditto.
        * testsuite/gas/i386/wrmsrns.s: Ditto.
        * testsuite/gas/i386/x86-64-wrmsrns-intel.d: Ditto.
        * testsuite/gas/i386/x86-64-wrmsrns.d: Ditto.

opcodes/ChangeLog:

	* i386-dis.c (PREFIX_0F01_REG_0_MOD_3_RM_6): New.
	(prefix_table): Add PREFIX_0F01_REG_0_MOD_3_RM_6.
	(rm_table): New entry for wrmsrns.
	* i386-gen.c (cpu_flag_init): Add CPU_WRMSRNS_FLAGS
	and CPU_ANY_WRMSRNS_FLAGS.
	(cpu_flags): Add CpuWRMSRNS.
        * i386-init.h: Regenerated.
        * i386-opc.h (CpuWRMSRNS): New.
	(i386_cpu_flags): Add cpuwrmsrns.
        * i386-opc.tbl: Add WRMSRNS instructions.
        * i386-tbl.h: Regenerated.

6 files changed, 39 insertions, 0 deletions

diff --git a/gas/testsuite/gas/i386/i386.exp b/gas/testsuite/gas/i386/i386.exp
index b26c4f0..b560131 100644
--- a/gas/testsuite/gas/i386/i386.exp
+++ b/gas/testsuite/gas/i386/i386.exp
@@ -480,6 +480,8 @@ if [gas_32_check] then {
     run_dump_test "avx-vnni-int8"
     run_dump_test "avx-vnni-int8-intel"
     run_list_test "cmpccxadd-inval"
+    run_dump_test "wrmsrns"
+    run_dump_test "wrmsrns-intel"
     run_list_test "sg"
     run_dump_test "clzero"
     run_dump_test "invlpgb"
@@ -1155,6 +1157,8 @@ if [gas_64_check] then {
     run_dump_test "x86-64-avx-vnni-int8-intel"
     run_dump_test "x86-64-cmpccxadd"
     run_dump_test "x86-64-cmpccxadd-intel"
+    run_dump_test "x86-64-wrmsrns"
+    run_dump_test "x86-64-wrmsrns-intel"
     run_dump_test "x86-64-clzero"
     run_dump_test "x86-64-mwaitx-bdver4"
     run_list_test "x86-64-mwaitx-reg"
diff --git a/gas/testsuite/gas/i386/wrmsrns-intel.d b/gas/testsuite/gas/i386/wrmsrns-intel.d
new file mode 100644
index 0000000..b3be260
--- /dev/null
+++ b/gas/testsuite/gas/i386/wrmsrns-intel.d
@@ -0,0 +1,5 @@
+#as:
+#objdump: -dw -Mintel
+#name: i386 WRMSRNS insns (Intel disassembly)
+#source: wrmsrns.s
+#dump: wrmsrns.d
diff --git a/gas/testsuite/gas/i386/wrmsrns.d b/gas/testsuite/gas/i386/wrmsrns.d
new file mode 100644
index 0000000..e804adc
--- /dev/null
+++ b/gas/testsuite/gas/i386/wrmsrns.d
@@ -0,0 +1,12 @@
+#as:
+#objdump: -dw
+#name: i386 WRMSRNS insns
+#source: wrmsrns.s
+
+.*: +file format .*
+
+Disassembly of section \.text:
+
+0+ <_start>:
+\s*[a-f0-9]+:\s*0f 01 c6\s+wrmsrns
+\s*[a-f0-9]+:\s*0f 01 c6\s+wrmsrns
diff --git a/gas/testsuite/gas/i386/wrmsrns.s b/gas/testsuite/gas/i386/wrmsrns.s
new file mode 100644
index 0000000..a450b05
--- /dev/null
+++ b/gas/testsuite/gas/i386/wrmsrns.s
@@ -0,0 +1,8 @@
+# Check WRMSRNS instructions
+
+	.text
+_start:
+	wrmsrns		 #WRMSRNS
+
+.intel_syntax noprefix
+	wrmsrns		 #WRMSRNS
diff --git a/gas/testsuite/gas/i386/x86-64-wrmsrns-intel.d b/gas/testsuite/gas/i386/x86-64-wrmsrns-intel.d
new file mode 100644
index 0000000..ff80e55
--- /dev/null
+++ b/gas/testsuite/gas/i386/x86-64-wrmsrns-intel.d
@@ -0,0 +1,5 @@
+#as:
+#objdump: -dw -Mintel
+#name: x86_64 WRMSRNS insns (Intel disassembly)
+#source: wrmsrns.s
+#dump: wrmsrns.d
diff --git a/gas/testsuite/gas/i386/x86-64-wrmsrns.d b/gas/testsuite/gas/i386/x86-64-wrmsrns.d
new file mode 100644
index 0000000..047f0a1
--- /dev/null
+++ b/gas/testsuite/gas/i386/x86-64-wrmsrns.d
@@ -0,0 +1,5 @@
+#as:
+#objdump: -dw
+#name: x86_64 WRMSRNS insns
+#source: wrmsrns.s
+#dump: wrmsrns.d