Implement Intel OSPKE instructions

This patch implements Intel OSPKE instructions documented in Intel64
and IA-32 Architectures Software Developer’s Manual Volume 2, September
2015.

gas/testsuite/

	* gas/i386/i386.exp: Run ospke and x86-64-ospke.
	* gas/i386/ospke.d: New file.
	* gas/i386/ospke.s: Likewise.
	* gas/i386/x86-64-ospke.d: Likewise.

opcodes/

	* i386-dis.c (MOD_0F01_REG_5): New.
	(RM_0F01_REG_5): Likewise.
	(reg_table): Use MOD_0F01_REG_5.
	(mod_table): Add MOD_0F01_REG_5.
	(rm_table): Add RM_0F01_REG_5.
	* i386-gen.c (cpu_flag_init): Add CPU_OSPKE_FLAGS.
	(cpu_flags): Add CpuOSPKE.
	* i386-opc.h (CpuOSPKE): New.
	(i386_cpu_flags): Add cpuospke.
	* i386-opc.tbl: Add rdpkru and wrpkru instructions.
	* i386-init.h: Regenerated.
	* i386-tbl.h: Likewise.

6 files changed, 42 insertions, 0 deletions

diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c
index d341193..1573043 100644
--- a/gas/config/tc-i386.c
+++ b/gas/config/tc-i386.c
@@ -950,6 +950,8 @@ static const arch_entry cpu_arch[] =
     CPU_CLZERO_FLAGS, 0, 0 },
   { STRING_COMMA_LEN (".mwaitx"), PROCESSOR_UNKNOWN,
     CPU_MWAITX_FLAGS, 0, 0 },
+  { STRING_COMMA_LEN (".ospke"), PROCESSOR_UNKNOWN,
+    CPU_OSPKE_FLAGS, 0, 0 },
 };
 
 #ifdef I386COFF
diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog
index 5978a3f..d0f5dea 100644
--- a/gas/testsuite/ChangeLog
+++ b/gas/testsuite/ChangeLog
@@ -1,3 +1,10 @@
+2015-12-09  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* gas/i386/i386.exp: Run ospke and x86-64-ospke.
+	* gas/i386/ospke.d: New file.
+	* gas/i386/ospke.s: Likewise.
+	* gas/i386/x86-64-ospke.d: Likewise.
+
 2015-12-09  Jan Beulich  <jbeulich@suse.com>
 
 	* gas/elf/file.d: Allow arbitrary entries at the beginning of
diff --git a/gas/testsuite/gas/i386/i386.exp b/gas/testsuite/gas/i386/i386.exp
index 1739ba9..d881cd8 100644
--- a/gas/testsuite/gas/i386/i386.exp
+++ b/gas/testsuite/gas/i386/i386.exp
@@ -343,6 +343,7 @@ if [expr ([istarget "i*86-*-*"] ||  [istarget "x86_64-*-*"]) && [gas_32_check]]
     run_dump_test "disassem"
     run_dump_test "mwaitx-bdver4"
     run_list_test "mwaitx-reg"
+    run_dump_test "ospke"
 
     # These tests require support for 8 and 16 bit relocs,
     # so we only run them for ELF and COFF targets.
@@ -729,6 +730,7 @@ if [expr ([istarget "i*86-*-*"] || [istarget "x86_64-*-*"]) && [gas_64_check]] t
     run_dump_test "x86-64-clzero"
     run_dump_test "x86-64-mwaitx-bdver4"
     run_list_test "x86-64-mwaitx-reg"
+    run_dump_test "x86-64-ospke"
 
     if { ![istarget "*-*-aix*"]
       && ![istarget "*-*-beos*"]
diff --git a/gas/testsuite/gas/i386/ospke.d b/gas/testsuite/gas/i386/ospke.d
new file mode 100644
index 0000000..6e0afb0
--- /dev/null
+++ b/gas/testsuite/gas/i386/ospke.d
@@ -0,0 +1,12 @@
+#name: i386 OSPKE insns
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text:
+
+0+ <_start>:
+[ 	]*[a-f0-9]+:	0f 01 ee             	rdpkru 
+[ 	]*[a-f0-9]+:	0f 01 ef             	wrpkru 
+#pass
diff --git a/gas/testsuite/gas/i386/ospke.s b/gas/testsuite/gas/i386/ospke.s
new file mode 100644
index 0000000..76b66e7
--- /dev/null
+++ b/gas/testsuite/gas/i386/ospke.s
@@ -0,0 +1,6 @@
+# Check OSPKE instructions.
+
+	.text
+_start:
+	rdpkru
+	wrpkru
diff --git a/gas/testsuite/gas/i386/x86-64-ospke.d b/gas/testsuite/gas/i386/x86-64-ospke.d
new file mode 100644
index 0000000..88e7ec0
--- /dev/null
+++ b/gas/testsuite/gas/i386/x86-64-ospke.d
@@ -0,0 +1,13 @@
+#source: ospke.s
+#name: x86-64 OSPKE insns
+#objdump: -dw
+
+.*: +file format .*
+
+
+Disassembly of section .text:
+
+0+ <_start>:
+[ 	]*[a-f0-9]+:	0f 01 ee             	rdpkru 
+[ 	]*[a-f0-9]+:	0f 01 ef             	wrpkru 
+#pass