x86: Ignore CS/DS/ES/SS segment-override prefixes in 64-bit mode

"In 64-bit mode, the CS, DS, ES, and SS segment-override prefixes have
no effect. These four prefixes are not treated as segment-override
prefixes for the purposes of multiple-prefix rules. Instead, they are
treated as null prefixes." (AMD APM v2).

However, objdump disassembles instructions containing those ignored
prefixes by still generating that segment override:

  66 66 2e 0f 1f 84 00 	data16 nopw %cs:0x0(%rax,%rax,1)
  00 00 00 00

Print those segment override prefixes as excessive ones:

  66 66 2e 0f 1f 84 00    data16 cs nopw 0x0(%rax,%rax,1)
  00 00 00 00

which is what they actually are - they have no effect and the decoding
hardware ignores them.

gas/

2020-11-14  Borislav Petkov  <bp@suse.de>

	* testsuite/gas/i386/x86-64-segovr.d: Adjust regexes.
	* testsuite/gas/i386/x86-64-nops.d: Likewise.
	* testsuite/gas/i386/x86-64-nops-1.d: Likewise.
	* testsuite/gas/i386/x86-64-nops-1-g64.d: Likewise.
	* testsuite/gas/i386/x86-64-nops-1-core2.d: Likewise.
	* testsuite/gas/i386/x86-64-nops-1-k8.d: Likewise.
	* testsuite/gas/i386/x86-64-nops-2.d: Likewise.
	* testsuite/gas/i386/x86-64-nops-3.d: Likewise.
	* testsuite/gas/i386/x86-64-nops-4.d: Likewise.
	* testsuite/gas/i386/x86-64-nops-4-core2.d: Likewise.
	* testsuite/gas/i386/x86-64-nops-4-k8.d: Likewise.
	* testsuite/gas/i386/x86-64-nops-5.d: Likewise.
	* testsuite/gas/i386/x86-64-nops-5-k8.d: Likewise.
	* testsuite/gas/i386/x86-64-nops-7.d: Likewise.
	* testsuite/gas/i386/x86-64-nop-1.d: Likewise.
	* testsuite/gas/i386/x86-64-align-branch-1a.d: Likewise.
	* testsuite/gas/i386/x86-64-align-branch-1b.d: Likewise.
	* testsuite/gas/i386/x86-64-align-branch-1c.d: Likewise.
	* testsuite/gas/i386/x86-64-align-branch-1d.d: Likewise.
	* testsuite/gas/i386/x86-64-align-branch-1g.d: Likewise.
	* testsuite/gas/i386/x86-64-align-branch-2c.d: Likewise.
	* testsuite/gas/i386/x86-64-align-branch-6.d: Likewise.
	* testsuite/gas/i386/x86-64-align-branch-7.d: Likewise.
	* testsuite/gas/i386/x86-64-align-branch-8.d: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-nops-1-core2.d: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-nops-1-k8.d: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-nops-1.d: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-nops-2.d: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-nops-3.d: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-nops-4-core2.d: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-nops-4-k8.d: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-nops-4.d: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-nops-5-k8.d: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-nops-5.d: Likewise.
	* testsuite/gas/i386/ilp32/x86-64-nops.d:: Likewise.

ld/

2020-11-14  Borislav Petkov  <bp@suse.de>

	* testsuite/ld-x86-64/pe-x86-64-4.od: Adjust regexes.
	* testsuite/ld-x86-64/tlsld3.dd: Likewise.
	* testsuite/ld-x86-64/tlsld4.dd: Likewise.

opcodes/

2020-11-14  Borislav Petkov  <bp@suse.de>

	* i386-dis.c (ckprefix): Do not assign active_seg_prefix in
	64-bit addressing mode.
	(NOTRACK_Fixup): Test prefixes for PREFIX_DS, instead of
	active_seg_prefix.

36 files changed, 430 insertions, 392 deletions

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 8976025..f047e8d 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,41 @@
+2020-11-14  Borislav Petkov  <bp@suse.de>
+
+	* testsuite/gas/i386/x86-64-segovr.d: Adjust regexes.
+	* testsuite/gas/i386/x86-64-nops.d: Likewise.
+	* testsuite/gas/i386/x86-64-nops-1.d: Likewise.
+	* testsuite/gas/i386/x86-64-nops-1-g64.d: Likewise.
+	* testsuite/gas/i386/x86-64-nops-1-core2.d: Likewise.
+	* testsuite/gas/i386/x86-64-nops-1-k8.d: Likewise.
+	* testsuite/gas/i386/x86-64-nops-2.d: Likewise.
+	* testsuite/gas/i386/x86-64-nops-3.d: Likewise.
+	* testsuite/gas/i386/x86-64-nops-4.d: Likewise.
+	* testsuite/gas/i386/x86-64-nops-4-core2.d: Likewise.
+	* testsuite/gas/i386/x86-64-nops-4-k8.d: Likewise.
+	* testsuite/gas/i386/x86-64-nops-5.d: Likewise.
+	* testsuite/gas/i386/x86-64-nops-5-k8.d: Likewise.
+	* testsuite/gas/i386/x86-64-nops-7.d: Likewise.
+	* testsuite/gas/i386/x86-64-nop-1.d: Likewise.
+	* testsuite/gas/i386/x86-64-align-branch-1a.d: Likewise.
+	* testsuite/gas/i386/x86-64-align-branch-1b.d: Likewise.
+	* testsuite/gas/i386/x86-64-align-branch-1c.d: Likewise.
+	* testsuite/gas/i386/x86-64-align-branch-1d.d: Likewise.
+	* testsuite/gas/i386/x86-64-align-branch-1g.d: Likewise.
+	* testsuite/gas/i386/x86-64-align-branch-2c.d: Likewise.
+	* testsuite/gas/i386/x86-64-align-branch-6.d: Likewise.
+	* testsuite/gas/i386/x86-64-align-branch-7.d: Likewise.
+	* testsuite/gas/i386/x86-64-align-branch-8.d: Likewise.
+	* testsuite/gas/i386/ilp32/x86-64-nops-1-core2.d: Likewise.
+	* testsuite/gas/i386/ilp32/x86-64-nops-1-k8.d: Likewise.
+	* testsuite/gas/i386/ilp32/x86-64-nops-1.d: Likewise.
+	* testsuite/gas/i386/ilp32/x86-64-nops-2.d: Likewise.
+	* testsuite/gas/i386/ilp32/x86-64-nops-3.d: Likewise.
+	* testsuite/gas/i386/ilp32/x86-64-nops-4-core2.d: Likewise.
+	* testsuite/gas/i386/ilp32/x86-64-nops-4-k8.d: Likewise.
+	* testsuite/gas/i386/ilp32/x86-64-nops-4.d: Likewise.
+	* testsuite/gas/i386/ilp32/x86-64-nops-5-k8.d: Likewise.
+	* testsuite/gas/i386/ilp32/x86-64-nops-5.d: Likewise.
+	* testsuite/gas/i386/ilp32/x86-64-nops.d:: Likewise.
+
 2020-11-12  Jozef Lawrynowicz  <jozef.l@mittosystems.com>
 
 	* config/tc-msp430.c (OPTION_MOVE_DATA): Define.
diff --git a/gas/testsuite/gas/i386/ilp32/x86-64-nops-1-core2.d b/gas/testsuite/gas/i386/ilp32/x86-64-nops-1-core2.d
index 2495cf8..8539447 100644
--- a/gas/testsuite/gas/i386/ilp32/x86-64-nops-1-core2.d
+++ b/gas/testsuite/gas/i386/ilp32/x86-64-nops-1-core2.d
@@ -9,20 +9,20 @@ Disassembly of section .text:
 
 0+ <nop15>:
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 40 00          	nopl   0x0\(%rax\)
 
 0+10 <nop14>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 00             	nopl   \(%rax\)
 
 0+20 <nop13>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+30 <nop12>:
@@ -30,7 +30,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	90                   	nop
 
 0+40 <nop11>:
@@ -39,7 +39,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 
 0+50 <nop10>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -48,7 +48,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	nopw   %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	cs nopw 0x0\(%rax,%rax,1\)
 
 0+60 <nop9>:
 [ 	]*[a-f0-9]+:	90                   	nop
diff --git a/gas/testsuite/gas/i386/ilp32/x86-64-nops-1-k8.d b/gas/testsuite/gas/i386/ilp32/x86-64-nops-1-k8.d
index 857fb0a..f8b729d 100644
--- a/gas/testsuite/gas/i386/ilp32/x86-64-nops-1-k8.d
+++ b/gas/testsuite/gas/i386/ilp32/x86-64-nops-1-k8.d
@@ -9,20 +9,20 @@ Disassembly of section .text:
 
 0+ <nop15>:
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 40 00          	nopl   0x0\(%rax\)
 
 0+10 <nop14>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 00             	nopl   \(%rax\)
 
 0+20 <nop13>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+30 <nop12>:
@@ -30,7 +30,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	90                   	nop
 
 0+40 <nop11>:
@@ -39,7 +39,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 
 0+50 <nop10>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -48,7 +48,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	nopw   %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	cs nopw 0x0\(%rax,%rax,1\)
 
 0+60 <nop9>:
 [ 	]*[a-f0-9]+:	90                   	nop
diff --git a/gas/testsuite/gas/i386/ilp32/x86-64-nops-1.d b/gas/testsuite/gas/i386/ilp32/x86-64-nops-1.d
index 2363abc..2d4784b 100644
--- a/gas/testsuite/gas/i386/ilp32/x86-64-nops-1.d
+++ b/gas/testsuite/gas/i386/ilp32/x86-64-nops-1.d
@@ -9,20 +9,20 @@ Disassembly of section .text:
 
 0+ <nop15>:
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 40 00          	nopl   0x0\(%rax\)
 
 0+10 <nop14>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 00             	nopl   \(%rax\)
 
 0+20 <nop13>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+30 <nop12>:
@@ -30,7 +30,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	90                   	nop
 
 0+40 <nop11>:
@@ -39,7 +39,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 
 0+50 <nop10>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -48,7 +48,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	nopw   %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	cs nopw 0x0\(%rax,%rax,1\)
 
 0+60 <nop9>:
 [ 	]*[a-f0-9]+:	90                   	nop
diff --git a/gas/testsuite/gas/i386/ilp32/x86-64-nops-2.d b/gas/testsuite/gas/i386/ilp32/x86-64-nops-2.d
index 89017a2..b4bb8f2 100644
--- a/gas/testsuite/gas/i386/ilp32/x86-64-nops-2.d
+++ b/gas/testsuite/gas/i386/ilp32/x86-64-nops-2.d
@@ -9,25 +9,25 @@ Disassembly of section .text:
 
 0+ <nop>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+10 <nop15>:
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 40 00          	nopl   0x0\(%rax\)
 
 0+20 <nop14>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 00             	nopl   \(%rax\)
 
 0+30 <nop13>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+40 <nop12>:
@@ -35,7 +35,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	90                   	nop
 
 0+50 <nop11>:
@@ -44,7 +44,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 
 0+60 <nop10>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -53,7 +53,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	nopw   %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	cs nopw 0x0\(%rax,%rax,1\)
 
 0+70 <nop9>:
 [ 	]*[a-f0-9]+:	90                   	nop
diff --git a/gas/testsuite/gas/i386/ilp32/x86-64-nops-3.d b/gas/testsuite/gas/i386/ilp32/x86-64-nops-3.d
index c03b9ba..6645c90 100644
--- a/gas/testsuite/gas/i386/ilp32/x86-64-nops-3.d
+++ b/gas/testsuite/gas/i386/ilp32/x86-64-nops-3.d
@@ -9,10 +9,10 @@ Disassembly of section .text:
 
 0+ <nop>:
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 84 00 00 00 00 00 	nopw   0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	89 c3                	mov    %eax,%ebx
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 00             	nopl   \(%rax\)
 #pass
diff --git a/gas/testsuite/gas/i386/ilp32/x86-64-nops-4-core2.d b/gas/testsuite/gas/i386/ilp32/x86-64-nops-4-core2.d
index 92bd5a3..1fac9fe 100644
--- a/gas/testsuite/gas/i386/ilp32/x86-64-nops-4-core2.d
+++ b/gas/testsuite/gas/i386/ilp32/x86-64-nops-4-core2.d
@@ -9,23 +9,23 @@ Disassembly of section .text:
 
 0+ <nop31>:
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 84 00 00 00 00 00 	nopw   0x0\(%rax,%rax,1\)
 
 0+20 <nop30>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 84 00 00 00 00 00 	nopl   0x0\(%rax,%rax,1\)
 
 0+40 <nop29>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 80 00 00 00 00 	nopl   0x0\(%rax\)
 
 0+60 <nop28>:
@@ -33,8 +33,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 44 00 00    	nopw   0x0\(%rax,%rax,1\)
 
 0+80 <nop27>:
@@ -43,8 +43,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 44 00 00       	nopl   0x0\(%rax,%rax,1\)
 
 0+a0 <nop26>:
@@ -54,8 +54,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 40 00          	nopl   0x0\(%rax\)
 
 0+c0 <nop25>:
@@ -66,8 +66,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 00             	nopl   \(%rax\)
 
 0+e0 <nop24>:
@@ -79,8 +79,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+100 <nop23>:
@@ -93,8 +93,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	90                   	nop
 
 0+120 <nop22>:
@@ -108,8 +108,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 
 0+140 <nop21>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -123,8 +123,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	nopw   %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	cs nopw 0x0\(%rax,%rax,1\)
 
 0+160 <nop20>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -139,7 +139,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 84 00 00 00 00 00 	nopw   0x0\(%rax,%rax,1\)
 
 0+180 <nop19>:
@@ -156,7 +156,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 84 00 00 00 00 00 	nopl   0x0\(%rax,%rax,1\)
 
 0+1a0 <nop18>:
@@ -174,7 +174,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 80 00 00 00 00 	nopl   0x0\(%rax\)
 
 0+1c0 <nop17>:
@@ -193,7 +193,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 44 00 00    	nopw   0x0\(%rax,%rax,1\)
 
 0+1e0 <nop16>:
@@ -213,6 +213,6 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 44 00 00       	nopl   0x0\(%rax,%rax,1\)
 #pass
diff --git a/gas/testsuite/gas/i386/ilp32/x86-64-nops-4-k8.d b/gas/testsuite/gas/i386/ilp32/x86-64-nops-4-k8.d
index 49de058..68cb105 100644
--- a/gas/testsuite/gas/i386/ilp32/x86-64-nops-4-k8.d
+++ b/gas/testsuite/gas/i386/ilp32/x86-64-nops-4-k8.d
@@ -9,23 +9,23 @@ Disassembly of section .text:
 
 0+ <nop31>:
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 84 00 00 00 00 00 	nopw   0x0\(%rax,%rax,1\)
 
 0+20 <nop30>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 84 00 00 00 00 00 	nopl   0x0\(%rax,%rax,1\)
 
 0+40 <nop29>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 80 00 00 00 00 	nopl   0x0\(%rax\)
 
 0+60 <nop28>:
@@ -33,8 +33,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 44 00 00    	nopw   0x0\(%rax,%rax,1\)
 
 0+80 <nop27>:
@@ -43,8 +43,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 44 00 00       	nopl   0x0\(%rax,%rax,1\)
 
 0+a0 <nop26>:
@@ -54,8 +54,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 40 00          	nopl   0x0\(%rax\)
 
 0+c0 <nop25>:
@@ -66,8 +66,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 00             	nopl   \(%rax\)
 
 0+e0 <nop24>:
@@ -79,8 +79,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+100 <nop23>:
@@ -93,8 +93,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	90                   	nop
 
 0+120 <nop22>:
@@ -108,8 +108,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 
 0+140 <nop21>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -123,8 +123,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	nopw   %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	cs nopw 0x0\(%rax,%rax,1\)
 
 0+160 <nop20>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -139,7 +139,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 84 00 00 00 00 00 	nopw   0x0\(%rax,%rax,1\)
 
 0+180 <nop19>:
@@ -156,7 +156,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 84 00 00 00 00 00 	nopl   0x0\(%rax,%rax,1\)
 
 0+1a0 <nop18>:
@@ -174,7 +174,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 80 00 00 00 00 	nopl   0x0\(%rax\)
 
 0+1c0 <nop17>:
@@ -193,7 +193,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 44 00 00    	nopw   0x0\(%rax,%rax,1\)
 
 0+1e0 <nop16>:
@@ -213,6 +213,6 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 44 00 00       	nopl   0x0\(%rax,%rax,1\)
 #pass
diff --git a/gas/testsuite/gas/i386/ilp32/x86-64-nops-4.d b/gas/testsuite/gas/i386/ilp32/x86-64-nops-4.d
index f47499c..4d82cdf 100644
--- a/gas/testsuite/gas/i386/ilp32/x86-64-nops-4.d
+++ b/gas/testsuite/gas/i386/ilp32/x86-64-nops-4.d
@@ -9,23 +9,23 @@ Disassembly of section .text:
 
 0+ <nop31>:
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 84 00 00 00 00 00 	nopw   0x0\(%rax,%rax,1\)
 
 0+20 <nop30>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 84 00 00 00 00 00 	nopl   0x0\(%rax,%rax,1\)
 
 0+40 <nop29>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 80 00 00 00 00 	nopl   0x0\(%rax\)
 
 0+60 <nop28>:
@@ -33,8 +33,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 44 00 00    	nopw   0x0\(%rax,%rax,1\)
 
 0+80 <nop27>:
@@ -43,8 +43,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 44 00 00       	nopl   0x0\(%rax,%rax,1\)
 
 0+a0 <nop26>:
@@ -54,8 +54,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 40 00          	nopl   0x0\(%rax\)
 
 0+c0 <nop25>:
@@ -66,8 +66,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 00             	nopl   \(%rax\)
 
 0+e0 <nop24>:
@@ -79,8 +79,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+100 <nop23>:
@@ -93,8 +93,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	90                   	nop
 
 0+120 <nop22>:
@@ -108,8 +108,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 
 0+140 <nop21>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -123,8 +123,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	nopw   %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	cs nopw 0x0\(%rax,%rax,1\)
 
 0+160 <nop20>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -139,7 +139,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 84 00 00 00 00 00 	nopw   0x0\(%rax,%rax,1\)
 
 0+180 <nop19>:
@@ -156,7 +156,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 84 00 00 00 00 00 	nopl   0x0\(%rax,%rax,1\)
 
 0+1a0 <nop18>:
@@ -174,7 +174,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 80 00 00 00 00 	nopl   0x0\(%rax\)
 
 0+1c0 <nop17>:
@@ -193,7 +193,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 44 00 00    	nopw   0x0\(%rax,%rax,1\)
 
 0+1e0 <nop16>:
@@ -213,6 +213,6 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 44 00 00       	nopl   0x0\(%rax,%rax,1\)
 #pass
diff --git a/gas/testsuite/gas/i386/ilp32/x86-64-nops-5-k8.d b/gas/testsuite/gas/i386/ilp32/x86-64-nops-5-k8.d
index a884406..51a8ed7 100644
--- a/gas/testsuite/gas/i386/ilp32/x86-64-nops-5-k8.d
+++ b/gas/testsuite/gas/i386/ilp32/x86-64-nops-5-k8.d
@@ -29,22 +29,22 @@ Disassembly of section .text:
 
 0+40 <pentium4>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+50 <nocona>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+60 <core>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+70 <core2>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+80 <k6>:
@@ -54,12 +54,12 @@ Disassembly of section .text:
 
 0+90 <athlon>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+a0 <k8>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+b0 <generic32>:
@@ -69,11 +69,11 @@ Disassembly of section .text:
 
 0+c0 <generic64>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+d0 <amdfam10>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 #pass
diff --git a/gas/testsuite/gas/i386/ilp32/x86-64-nops-5.d b/gas/testsuite/gas/i386/ilp32/x86-64-nops-5.d
index b6438c4..4975454 100644
--- a/gas/testsuite/gas/i386/ilp32/x86-64-nops-5.d
+++ b/gas/testsuite/gas/i386/ilp32/x86-64-nops-5.d
@@ -28,22 +28,22 @@ Disassembly of section .text:
 
 0+40 <pentium4>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+50 <nocona>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+60 <core>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+70 <core2>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+80 <k6>:
@@ -53,12 +53,12 @@ Disassembly of section .text:
 
 0+90 <athlon>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+a0 <k8>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+b0 <generic32>:
@@ -68,11 +68,11 @@ Disassembly of section .text:
 
 0+c0 <generic64>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+d0 <amdfam10>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 #pass
diff --git a/gas/testsuite/gas/i386/ilp32/x86-64-nops.d b/gas/testsuite/gas/i386/ilp32/x86-64-nops.d
index 3a47e6c..b874e75 100644
--- a/gas/testsuite/gas/i386/ilp32/x86-64-nops.d
+++ b/gas/testsuite/gas/i386/ilp32/x86-64-nops.d
@@ -14,7 +14,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	0f 1f 80 00 00 00 00 	nopl   0x0\(%rax\)
 [ 	]*[a-f0-9]+:	0f 1f 84 00 00 00 00 00 	nopl   0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 84 00 00 00 00 00 	nopw   0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	nopw   %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 19 ff             	nop    %edi
 [ 	]*[a-f0-9]+:	0f 1a ff             	nop    %edi
 [ 	]*[a-f0-9]+:	0f 1b ff             	nop    %edi
diff --git a/gas/testsuite/gas/i386/x86-64-align-branch-1a.d b/gas/testsuite/gas/i386/x86-64-align-branch-1a.d
index 452904e..0253d36 100644
--- a/gas/testsuite/gas/i386/x86-64-align-branch-1a.d
+++ b/gas/testsuite/gas/i386/x86-64-align-branch-1a.d
@@ -19,7 +19,7 @@ Disassembly of section .text:
   1d:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
   20:	48 39 c5             	cmp    %rax,%rbp
   23:	74 5d                	je     (0x)?82( .*)?
-  25:	2e 89 75 f4          	mov    %esi,%cs:-0xc\(%rbp\)
+  25:	2e 89 75 f4          	cs mov %esi,-0xc\(%rbp\)
   29:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
   2c:	89 7d f8             	mov    %edi,-0x8\(%rbp\)
   2f:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
@@ -32,7 +32,7 @@ Disassembly of section .text:
   40:	74 40                	je     (0x)?82( .*)?
   42:	5d                   	pop    %rbp
   43:	74 3d                	je     (0x)?82( .*)?
-  45:	2e 89 45 fc          	mov    %eax,%cs:-0x4\(%rbp\)
+  45:	2e 89 45 fc          	cs mov %eax,-0x4\(%rbp\)
   49:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
   4c:	89 7d f8             	mov    %edi,-0x8\(%rbp\)
   4f:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
diff --git a/gas/testsuite/gas/i386/x86-64-align-branch-1b.d b/gas/testsuite/gas/i386/x86-64-align-branch-1b.d
index 1c63f37..b043a7a 100644
--- a/gas/testsuite/gas/i386/x86-64-align-branch-1b.d
+++ b/gas/testsuite/gas/i386/x86-64-align-branch-1b.d
@@ -19,7 +19,7 @@ Disassembly of section .text:
   1d:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
   20:	48 39 c5             	cmp    %rax,%rbp
   23:	74 5d                	je     (0x)?82( .*)?
-  25:	2e 89 75 f4          	mov    %esi,%cs:-0xc\(%rbp\)
+  25:	2e 89 75 f4          	cs mov %esi,-0xc\(%rbp\)
   29:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
   2c:	89 7d f8             	mov    %edi,-0x8\(%rbp\)
   2f:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
@@ -32,7 +32,7 @@ Disassembly of section .text:
   40:	74 40                	je     (0x)?82( .*)?
   42:	5d                   	pop    %rbp
   43:	74 3d                	je     (0x)?82( .*)?
-  45:	2e 89 45 fc          	mov    %eax,%cs:-0x4\(%rbp\)
+  45:	2e 89 45 fc          	cs mov %eax,-0x4\(%rbp\)
   49:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
   4c:	89 7d f8             	mov    %edi,-0x8\(%rbp\)
   4f:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
diff --git a/gas/testsuite/gas/i386/x86-64-align-branch-1c.d b/gas/testsuite/gas/i386/x86-64-align-branch-1c.d
index cc7158f..e972354 100644
--- a/gas/testsuite/gas/i386/x86-64-align-branch-1c.d
+++ b/gas/testsuite/gas/i386/x86-64-align-branch-1c.d
@@ -19,7 +19,7 @@ Disassembly of section .text:
   1d:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
   20:	48 39 c5             	cmp    %rax,%rbp
   23:	74 5d                	je     (0x)?82( .*)?
-  25:	2e 89 75 f4          	mov    %esi,%cs:-0xc\(%rbp\)
+  25:	2e 89 75 f4          	cs mov %esi,-0xc\(%rbp\)
   29:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
   2c:	89 7d f8             	mov    %edi,-0x8\(%rbp\)
   2f:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
@@ -32,7 +32,7 @@ Disassembly of section .text:
   40:	74 40                	je     (0x)?82( .*)?
   42:	5d                   	pop    %rbp
   43:	74 3d                	je     (0x)?82( .*)?
-  45:	2e 89 45 fc          	mov    %eax,%cs:-0x4\(%rbp\)
+  45:	2e 89 45 fc          	cs mov %eax,-0x4\(%rbp\)
   49:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
   4c:	89 7d f8             	mov    %edi,-0x8\(%rbp\)
   4f:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
diff --git a/gas/testsuite/gas/i386/x86-64-align-branch-1d.d b/gas/testsuite/gas/i386/x86-64-align-branch-1d.d
index 780663c..99065a6 100644
--- a/gas/testsuite/gas/i386/x86-64-align-branch-1d.d
+++ b/gas/testsuite/gas/i386/x86-64-align-branch-1d.d
@@ -19,7 +19,7 @@ Disassembly of section .text:
   1d:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
   20:	48 39 c5             	cmp    %rax,%rbp
   23:	74 5b                	je     (0x)?80( .*)?
-  25:	2e 89 75 f4          	mov    %esi,%cs:-0xc\(%rbp\)
+  25:	2e 89 75 f4          	cs mov %esi,-0xc\(%rbp\)
   29:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
   2c:	89 7d f8             	mov    %edi,-0x8\(%rbp\)
   2f:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
diff --git a/gas/testsuite/gas/i386/x86-64-align-branch-1g.d b/gas/testsuite/gas/i386/x86-64-align-branch-1g.d
index 0e5d881..af6c869 100644
--- a/gas/testsuite/gas/i386/x86-64-align-branch-1g.d
+++ b/gas/testsuite/gas/i386/x86-64-align-branch-1g.d
@@ -19,7 +19,7 @@ Disassembly of section .text:
   1d:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
   20:	48 39 c5             	cmp    %rax,%rbp
   23:	74 5d                	je     (0x)?82( .*)?
-  25:	2e 89 75 f4          	mov    %esi,%cs:-0xc\(%rbp\)
+  25:	2e 89 75 f4          	cs mov %esi,-0xc\(%rbp\)
   29:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
   2c:	89 7d f8             	mov    %edi,-0x8\(%rbp\)
   2f:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
@@ -32,7 +32,7 @@ Disassembly of section .text:
   40:	74 40                	je     (0x)?82( .*)?
   42:	5d                   	pop    %rbp
   43:	74 3d                	je     (0x)?82( .*)?
-  45:	2e 89 45 fc          	mov    %eax,%cs:-0x4\(%rbp\)
+  45:	2e 89 45 fc          	cs mov %eax,-0x4\(%rbp\)
   49:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
   4c:	89 7d f8             	mov    %edi,-0x8\(%rbp\)
   4f:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
diff --git a/gas/testsuite/gas/i386/x86-64-align-branch-2c.d b/gas/testsuite/gas/i386/x86-64-align-branch-2c.d
index 7e28c32..6745e9c 100644
--- a/gas/testsuite/gas/i386/x86-64-align-branch-2c.d
+++ b/gas/testsuite/gas/i386/x86-64-align-branch-2c.d
@@ -29,7 +29,7 @@ Disassembly of section .text:
   3a:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
   3d:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
   40:	ff d0                	call   \*%rax
-  42:	2e 2e 2e 2e 2e 89 75 f4 	cs cs cs cs mov %esi,%cs:-0xc\(%rbp\)
+  42:	2e 2e 2e 2e 2e 89 75 f4 	cs cs cs cs cs mov %esi,-0xc\(%rbp\)
   4a:	55                   	push   %rbp
   4b:	55                   	push   %rbp
   4c:	64 89 04 25 01 00 00 00 	mov    %eax,%fs:0x1
@@ -38,7 +38,7 @@ Disassembly of section .text:
   5a:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
   5d:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
   60:	e8 [0-9a-f ]+       	call   .*
-  65:	2e 2e 2e 2e 2e 89 75 f4 	cs cs cs cs mov %esi,%cs:-0xc\(%rbp\)
+  65:	2e 2e 2e 2e 2e 89 75 f4 	cs cs cs cs cs mov %esi,-0xc\(%rbp\)
   6d:	2e 2e 55             	cs cs push %rbp
   70:	55                   	push   %rbp
   71:	55                   	push   %rbp
diff --git a/gas/testsuite/gas/i386/x86-64-align-branch-6.d b/gas/testsuite/gas/i386/x86-64-align-branch-6.d
index 213c26a..e061592 100644
--- a/gas/testsuite/gas/i386/x86-64-align-branch-6.d
+++ b/gas/testsuite/gas/i386/x86-64-align-branch-6.d
@@ -8,11 +8,11 @@
 Disassembly of section .text:
 
 0+ <_start>:
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
  +[a-f0-9]+:	0f 1f 80 00 00 00 00 	nopl   0x0\(%rax\)
  +[a-f0-9]+:	f2 73 bf             	bnd jae 0 <_start>
  +[a-f0-9]+:	c3                   	ret *
diff --git a/gas/testsuite/gas/i386/x86-64-align-branch-7.d b/gas/testsuite/gas/i386/x86-64-align-branch-7.d
index 9454d53..2475d3b 100644
--- a/gas/testsuite/gas/i386/x86-64-align-branch-7.d
+++ b/gas/testsuite/gas/i386/x86-64-align-branch-7.d
@@ -6,7 +6,7 @@
 Disassembly of section .text:
 
 0+ <foo>:
- +[a-f0-9]+:	2e 66 0f 3a 60 00 03 	pcmpestrm \$0x3,%cs:\(%rax\),%xmm0
+ +[a-f0-9]+:	2e 66 0f 3a 60 00 03 	cs pcmpestrm \$0x3,\(%rax\),%xmm0
  +[a-f0-9]+:	2e 2e 48 89 e5       	cs cs mov %rsp,%rbp
  +[a-f0-9]+:	89 7d f8             	mov    %edi,-0x8\(%rbp\)
  +[a-f0-9]+:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
diff --git a/gas/testsuite/gas/i386/x86-64-align-branch-8.d b/gas/testsuite/gas/i386/x86-64-align-branch-8.d
index bffabc1..6a2493b 100644
--- a/gas/testsuite/gas/i386/x86-64-align-branch-8.d
+++ b/gas/testsuite/gas/i386/x86-64-align-branch-8.d
@@ -6,7 +6,7 @@
 Disassembly of section .text:
 
 0+ <foo>:
- +[a-f0-9]+:	2e c4 63 79 60 38 03 	vpcmpestrm \$0x3,%cs:\(%rax\),%xmm15
+ +[a-f0-9]+:	2e c4 63 79 60 38 03 	cs vpcmpestrm \$0x3,\(%rax\),%xmm15
  +[a-f0-9]+:	2e 2e 48 89 e5       	cs cs mov %rsp,%rbp
  +[a-f0-9]+:	89 7d f8             	mov    %edi,-0x8\(%rbp\)
  +[a-f0-9]+:	89 75 f4             	mov    %esi,-0xc\(%rbp\)
diff --git a/gas/testsuite/gas/i386/x86-64-nop-1.d b/gas/testsuite/gas/i386/x86-64-nop-1.d
index 7038699..5778021 100644
--- a/gas/testsuite/gas/i386/x86-64-nop-1.d
+++ b/gas/testsuite/gas/i386/x86-64-nop-1.d
@@ -21,27 +21,27 @@ Disassembly of section .text:
  +[a-f0-9]+:	0f 1f 40 00          	nopl   0x0\(%rax\)
 
 0+12 <pseudo_20>:
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
  +[a-f0-9]+:	66 0f 1f 84 00 00 00 00 00 	nopw   0x0\(%rax,%rax,1\)
 
 0+26 <pseudo_30>:
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
  +[a-f0-9]+:	0f 1f 84 00 00 00 00 00 	nopl   0x0\(%rax,%rax,1\)
 
 0+44 <pseudo_129>:
  +[a-f0-9]+:	eb 7f                	jmp    c5 <end>
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
  +[a-f0-9]+:	66 0f 1f 44 00 00    	nopw   0x0\(%rax,%rax,1\)
 
 0+c5 <end>:
diff --git a/gas/testsuite/gas/i386/x86-64-nops-1-core2.d b/gas/testsuite/gas/i386/x86-64-nops-1-core2.d
index 7923361..775d16b 100644
--- a/gas/testsuite/gas/i386/x86-64-nops-1-core2.d
+++ b/gas/testsuite/gas/i386/x86-64-nops-1-core2.d
@@ -10,20 +10,20 @@ Disassembly of section .text:
 
 0+ <nop15>:
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 40 00          	nopl   0x0\(%rax\)
 
 0+10 <nop14>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 00             	nopl   \(%rax\)
 
 0+20 <nop13>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+30 <nop12>:
@@ -31,7 +31,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	90                   	nop
 
 0+40 <nop11>:
@@ -40,7 +40,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 
 0+50 <nop10>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -49,7 +49,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	nopw   %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	cs nopw 0x0\(%rax,%rax,1\)
 
 0+60 <nop9>:
 [ 	]*[a-f0-9]+:	90                   	nop
diff --git a/gas/testsuite/gas/i386/x86-64-nops-1-g64.d b/gas/testsuite/gas/i386/x86-64-nops-1-g64.d
index 69de228..b80b4c7 100644
--- a/gas/testsuite/gas/i386/x86-64-nops-1-g64.d
+++ b/gas/testsuite/gas/i386/x86-64-nops-1-g64.d
@@ -10,20 +10,20 @@ Disassembly of section .text:
 
 0+ <nop15>:
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 40 00          	nopl   0x0\(%rax\)
 
 0+10 <nop14>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 00             	nopl   \(%rax\)
 
 0+20 <nop13>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+30 <nop12>:
@@ -31,7 +31,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	90                   	nop
 
 0+40 <nop11>:
@@ -40,7 +40,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 
 0+50 <nop10>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -49,7 +49,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	nopw   %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	cs nopw 0x0\(%rax,%rax,1\)
 
 0+60 <nop9>:
 [ 	]*[a-f0-9]+:	90                   	nop
diff --git a/gas/testsuite/gas/i386/x86-64-nops-1-k8.d b/gas/testsuite/gas/i386/x86-64-nops-1-k8.d
index d885bbd..569edda 100644
--- a/gas/testsuite/gas/i386/x86-64-nops-1-k8.d
+++ b/gas/testsuite/gas/i386/x86-64-nops-1-k8.d
@@ -9,20 +9,20 @@ Disassembly of section .text:
 
 0+ <nop15>:
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 40 00          	nopl   0x0\(%rax\)
 
 0+10 <nop14>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 00             	nopl   \(%rax\)
 
 0+20 <nop13>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+30 <nop12>:
@@ -30,7 +30,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	90                   	nop
 
 0+40 <nop11>:
@@ -39,7 +39,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 
 0+50 <nop10>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -48,7 +48,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	nopw   %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	cs nopw 0x0\(%rax,%rax,1\)
 
 0+60 <nop9>:
 [ 	]*[a-f0-9]+:	90                   	nop
diff --git a/gas/testsuite/gas/i386/x86-64-nops-1.d b/gas/testsuite/gas/i386/x86-64-nops-1.d
index a73fcb5..ab99e56 100644
--- a/gas/testsuite/gas/i386/x86-64-nops-1.d
+++ b/gas/testsuite/gas/i386/x86-64-nops-1.d
@@ -9,20 +9,20 @@ Disassembly of section .text:
 
 0+ <nop15>:
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 40 00          	nopl   0x0\(%rax\)
 
 0+10 <nop14>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 00             	nopl   \(%rax\)
 
 0+20 <nop13>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+30 <nop12>:
@@ -30,7 +30,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	90                   	nop
 
 0+40 <nop11>:
@@ -39,7 +39,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 
 0+50 <nop10>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -48,7 +48,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	nopw   %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	cs nopw 0x0\(%rax,%rax,1\)
 
 0+60 <nop9>:
 [ 	]*[a-f0-9]+:	90                   	nop
diff --git a/gas/testsuite/gas/i386/x86-64-nops-2.d b/gas/testsuite/gas/i386/x86-64-nops-2.d
index c1a1187..fa07de7 100644
--- a/gas/testsuite/gas/i386/x86-64-nops-2.d
+++ b/gas/testsuite/gas/i386/x86-64-nops-2.d
@@ -10,25 +10,25 @@ Disassembly of section .text:
 
 0+ <nop>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+10 <nop15>:
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 40 00          	nopl   0x0\(%rax\)
 
 0+20 <nop14>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 00             	nopl   \(%rax\)
 
 0+30 <nop13>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+40 <nop12>:
@@ -36,7 +36,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	90                   	nop
 
 0+50 <nop11>:
@@ -45,7 +45,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 
 0+60 <nop10>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -54,7 +54,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	nopw   %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	cs nopw 0x0\(%rax,%rax,1\)
 
 0+70 <nop9>:
 [ 	]*[a-f0-9]+:	90                   	nop
diff --git a/gas/testsuite/gas/i386/x86-64-nops-3.d b/gas/testsuite/gas/i386/x86-64-nops-3.d
index 5bcc9cc..74c4d9c 100644
--- a/gas/testsuite/gas/i386/x86-64-nops-3.d
+++ b/gas/testsuite/gas/i386/x86-64-nops-3.d
@@ -10,10 +10,10 @@ Disassembly of section .text:
 
 0+ <nop>:
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 84 00 00 00 00 00 	nopw   0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	89 c3                	mov    %eax,%ebx
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 00             	nopl   \(%rax\)
 #pass
diff --git a/gas/testsuite/gas/i386/x86-64-nops-4-core2.d b/gas/testsuite/gas/i386/x86-64-nops-4-core2.d
index ef641ca..724d3d1 100644
--- a/gas/testsuite/gas/i386/x86-64-nops-4-core2.d
+++ b/gas/testsuite/gas/i386/x86-64-nops-4-core2.d
@@ -10,23 +10,23 @@ Disassembly of section .text:
 
 0+ <nop31>:
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 84 00 00 00 00 00 	nopw   0x0\(%rax,%rax,1\)
 
 0+20 <nop30>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 84 00 00 00 00 00 	nopl   0x0\(%rax,%rax,1\)
 
 0+40 <nop29>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 80 00 00 00 00 	nopl   0x0\(%rax\)
 
 0+60 <nop28>:
@@ -34,8 +34,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 44 00 00    	nopw   0x0\(%rax,%rax,1\)
 
 0+80 <nop27>:
@@ -44,8 +44,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 44 00 00       	nopl   0x0\(%rax,%rax,1\)
 
 0+a0 <nop26>:
@@ -55,8 +55,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 40 00          	nopl   0x0\(%rax\)
 
 0+c0 <nop25>:
@@ -67,8 +67,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 00             	nopl   \(%rax\)
 
 0+e0 <nop24>:
@@ -80,8 +80,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+100 <nop23>:
@@ -94,8 +94,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	90                   	nop
 
 0+120 <nop22>:
@@ -109,8 +109,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 
 0+140 <nop21>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -124,8 +124,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	nopw   %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	cs nopw 0x0\(%rax,%rax,1\)
 
 0+160 <nop20>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -140,7 +140,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 84 00 00 00 00 00 	nopw   0x0\(%rax,%rax,1\)
 
 0+180 <nop19>:
@@ -157,7 +157,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 84 00 00 00 00 00 	nopl   0x0\(%rax,%rax,1\)
 
 0+1a0 <nop18>:
@@ -175,7 +175,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 80 00 00 00 00 	nopl   0x0\(%rax\)
 
 0+1c0 <nop17>:
@@ -194,7 +194,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 44 00 00    	nopw   0x0\(%rax,%rax,1\)
 
 0+1e0 <nop16>:
@@ -214,6 +214,6 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 44 00 00       	nopl   0x0\(%rax,%rax,1\)
 #pass
diff --git a/gas/testsuite/gas/i386/x86-64-nops-4-k8.d b/gas/testsuite/gas/i386/x86-64-nops-4-k8.d
index 75bb4fb..c7cf308 100644
--- a/gas/testsuite/gas/i386/x86-64-nops-4-k8.d
+++ b/gas/testsuite/gas/i386/x86-64-nops-4-k8.d
@@ -9,23 +9,23 @@ Disassembly of section .text:
 
 0+ <nop31>:
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 84 00 00 00 00 00 	nopw   0x0\(%rax,%rax,1\)
 
 0+20 <nop30>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 84 00 00 00 00 00 	nopl   0x0\(%rax,%rax,1\)
 
 0+40 <nop29>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 80 00 00 00 00 	nopl   0x0\(%rax\)
 
 0+60 <nop28>:
@@ -33,8 +33,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 44 00 00    	nopw   0x0\(%rax,%rax,1\)
 
 0+80 <nop27>:
@@ -43,8 +43,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 44 00 00       	nopl   0x0\(%rax,%rax,1\)
 
 0+a0 <nop26>:
@@ -54,8 +54,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 40 00          	nopl   0x0\(%rax\)
 
 0+c0 <nop25>:
@@ -66,8 +66,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 00             	nopl   \(%rax\)
 
 0+e0 <nop24>:
@@ -79,8 +79,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+100 <nop23>:
@@ -93,8 +93,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	90                   	nop
 
 0+120 <nop22>:
@@ -108,8 +108,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 
 0+140 <nop21>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -123,8 +123,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	nopw   %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	cs nopw 0x0\(%rax,%rax,1\)
 
 0+160 <nop20>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -139,7 +139,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 84 00 00 00 00 00 	nopw   0x0\(%rax,%rax,1\)
 
 0+180 <nop19>:
@@ -156,7 +156,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 84 00 00 00 00 00 	nopl   0x0\(%rax,%rax,1\)
 
 0+1a0 <nop18>:
@@ -174,7 +174,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 80 00 00 00 00 	nopl   0x0\(%rax\)
 
 0+1c0 <nop17>:
@@ -193,7 +193,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 44 00 00    	nopw   0x0\(%rax,%rax,1\)
 
 0+1e0 <nop16>:
@@ -213,6 +213,6 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 44 00 00       	nopl   0x0\(%rax,%rax,1\)
 #pass
diff --git a/gas/testsuite/gas/i386/x86-64-nops-4.d b/gas/testsuite/gas/i386/x86-64-nops-4.d
index 0d2ff98..7a922c9 100644
--- a/gas/testsuite/gas/i386/x86-64-nops-4.d
+++ b/gas/testsuite/gas/i386/x86-64-nops-4.d
@@ -10,23 +10,23 @@ Disassembly of section .text:
 
 0+ <nop31>:
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 84 00 00 00 00 00 	nopw   0x0\(%rax,%rax,1\)
 
 0+20 <nop30>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 84 00 00 00 00 00 	nopl   0x0\(%rax,%rax,1\)
 
 0+40 <nop29>:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 80 00 00 00 00 	nopl   0x0\(%rax\)
 
 0+60 <nop28>:
@@ -34,8 +34,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 44 00 00    	nopw   0x0\(%rax,%rax,1\)
 
 0+80 <nop27>:
@@ -44,8 +44,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 44 00 00       	nopl   0x0\(%rax,%rax,1\)
 
 0+a0 <nop26>:
@@ -55,8 +55,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 40 00          	nopl   0x0\(%rax\)
 
 0+c0 <nop25>:
@@ -67,8 +67,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 00             	nopl   \(%rax\)
 
 0+e0 <nop24>:
@@ -80,8 +80,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+100 <nop23>:
@@ -94,8 +94,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	90                   	nop
 
 0+120 <nop22>:
@@ -109,8 +109,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 
 0+140 <nop21>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -124,8 +124,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	nopw   %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	cs nopw 0x0\(%rax,%rax,1\)
 
 0+160 <nop20>:
 [ 	]*[a-f0-9]+:	90                   	nop
@@ -140,7 +140,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 84 00 00 00 00 00 	nopw   0x0\(%rax,%rax,1\)
 
 0+180 <nop19>:
@@ -157,7 +157,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 84 00 00 00 00 00 	nopl   0x0\(%rax,%rax,1\)
 
 0+1a0 <nop18>:
@@ -175,7 +175,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 80 00 00 00 00 	nopl   0x0\(%rax\)
 
 0+1c0 <nop17>:
@@ -194,7 +194,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 44 00 00    	nopw   0x0\(%rax,%rax,1\)
 
 0+1e0 <nop16>:
@@ -214,6 +214,6 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
 [ 	]*[a-f0-9]+:	90                   	nop
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 1f 44 00 00       	nopl   0x0\(%rax,%rax,1\)
 #pass
diff --git a/gas/testsuite/gas/i386/x86-64-nops-5-k8.d b/gas/testsuite/gas/i386/x86-64-nops-5-k8.d
index 48410a1..3c7db89 100644
--- a/gas/testsuite/gas/i386/x86-64-nops-5-k8.d
+++ b/gas/testsuite/gas/i386/x86-64-nops-5-k8.d
@@ -30,22 +30,22 @@ Disassembly of section .text:
 
 0+40 <pentium4>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+50 <nocona>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+60 <core>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+70 <core2>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+80 <k6>:
@@ -55,12 +55,12 @@ Disassembly of section .text:
 
 0+90 <athlon>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+a0 <k8>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+b0 <generic32>:
@@ -70,11 +70,11 @@ Disassembly of section .text:
 
 0+c0 <generic64>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+d0 <amdfam10>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 #pass
diff --git a/gas/testsuite/gas/i386/x86-64-nops-5.d b/gas/testsuite/gas/i386/x86-64-nops-5.d
index 4adebcf..2b755cf 100644
--- a/gas/testsuite/gas/i386/x86-64-nops-5.d
+++ b/gas/testsuite/gas/i386/x86-64-nops-5.d
@@ -29,22 +29,22 @@ Disassembly of section .text:
 
 0+40 <pentium4>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+50 <nocona>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+60 <core>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+70 <core2>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+80 <k6>:
@@ -54,12 +54,12 @@ Disassembly of section .text:
 
 0+90 <athlon>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+a0 <k8>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+b0 <generic32>:
@@ -69,11 +69,11 @@ Disassembly of section .text:
 
 0+c0 <generic64>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 
 0+d0 <amdfam10>:
 [ 	]*[a-f0-9]+:	0f be f0             	movsbl %al,%esi
-[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 90                	xchg   %ax,%ax
 #pass
diff --git a/gas/testsuite/gas/i386/x86-64-nops-7.d b/gas/testsuite/gas/i386/x86-64-nops-7.d
index 9a86b11..859dfd8 100644
--- a/gas/testsuite/gas/i386/x86-64-nops-7.d
+++ b/gas/testsuite/gas/i386/x86-64-nops-7.d
@@ -10,109 +10,109 @@ Disassembly of section .text:
 0+ <_start>:
  +[a-f0-9]+:	31 c0                	xor    %eax,%eax
  +[a-f0-9]+:	e9 f9 01 00 00       	jmp    200 <func1>
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	nopw   %cs:0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	cs nopw 0x0\(%rax,%rax,1\)
 
 0+200 <func1>:
  +[a-f0-9]+:	31 db                	xor    %ebx,%ebx
  +[a-f0-9]+:	e9 f9 00 00 00       	jmp    300 <func2>
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
  +[a-f0-9]+:	0f 1f 80 00 00 00 00 	nopl   0x0\(%rax\)
 
 0+300 <func2>:
  +[a-f0-9]+:	31 db                	xor    %ebx,%ebx
  +[a-f0-9]+:	eb 7c                	jmp    380 <func3>
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
  +[a-f0-9]+:	0f 1f 00             	nopl   \(%rax\)
 
 0+380 <func3>:
  +[a-f0-9]+:	31 c9                	xor    %ecx,%ecx
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
  +[a-f0-9]+:	0f 1f 80 00 00 00 00 	nopl   0x0\(%rax\)
 
 0+3c0 <func4>:
  +[a-f0-9]+:	31 d2                	xor    %edx,%edx
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
- +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 nopw %cs:0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
+ +[a-f0-9]+:	66 66 2e 0f 1f 84 00 00 00 00 00 	data16 cs nopw 0x0\(%rax,%rax,1\)
  +[a-f0-9]+:	0f 1f 84 00 00 00 00 00 	nopl   0x0\(%rax,%rax,1\)
 
 0+3e0 <func5>:
diff --git a/gas/testsuite/gas/i386/x86-64-nops.d b/gas/testsuite/gas/i386/x86-64-nops.d
index faf2dc9..311056c 100644
--- a/gas/testsuite/gas/i386/x86-64-nops.d
+++ b/gas/testsuite/gas/i386/x86-64-nops.d
@@ -13,7 +13,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	0f 1f 80 00 00 00 00 	nopl   0x0\(%rax\)
 [ 	]*[a-f0-9]+:	0f 1f 84 00 00 00 00 00 	nopl   0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	66 0f 1f 84 00 00 00 00 00 	nopw   0x0\(%rax,%rax,1\)
-[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	nopw   %cs:0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	66 2e 0f 1f 84 00 00 00 00 00 	cs nopw 0x0\(%rax,%rax,1\)
 [ 	]*[a-f0-9]+:	0f 19 ff             	nop    %edi
 [ 	]*[a-f0-9]+:	0f 1a ff             	nop    %edi
 [ 	]*[a-f0-9]+:	0f 1b ff             	nop    %edi
diff --git a/gas/testsuite/gas/i386/x86-64-segovr.d b/gas/testsuite/gas/i386/x86-64-segovr.d
index 76f8594..2e7ebf2 100644
--- a/gas/testsuite/gas/i386/x86-64-segovr.d
+++ b/gas/testsuite/gas/i386/x86-64-segovr.d
@@ -10,8 +10,8 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	8b 01[ 	]+mov[ 	]+\(%rcx\),%eax
 [ 	]*[a-f0-9]+:	8b 02[ 	]+mov[ 	]+\(%rdx\),%eax
 [ 	]*[a-f0-9]+:	8b 03[ 	]+mov[ 	]+\(%rbx\),%eax
-[ 	]*[a-f0-9]+:	3e 8b 04 24[ 	]+mov[ 	]+%ds:\(%rsp\),%eax
-[ 	]*[a-f0-9]+:	3e 8b 45 00[ 	]+mov[ 	]+%ds:((0x)?0)?\(%rbp\),%eax
+[ 	]*[a-f0-9]+:	3e 8b 04 24[ 	]+ds mov[ 	]+\(%rsp\),%eax
+[ 	]*[a-f0-9]+:	3e 8b 45 00[ 	]+ds mov[ 	]+((0x)?0)?\(%rbp\),%eax
 [ 	]*[a-f0-9]+:	8b 06[ 	]+mov[ 	]+\(%rsi\),%eax
 [ 	]*[a-f0-9]+:	8b 07[ 	]+mov[ 	]+\(%rdi\),%eax
 [ 	]*[a-f0-9]+:	41 8b 00[ 	]+mov[ 	]+\(%r8\),%eax
@@ -22,20 +22,20 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	41 8b 45 00[ 	]+mov[ 	]+((0x)?0)?\(%r13\),%eax
 [ 	]*[a-f0-9]+:	41 8b 06[ 	]+mov[ 	]+\(%r14\),%eax
 [ 	]*[a-f0-9]+:	41 8b 07[ 	]+mov[ 	]+\(%r15\),%eax
-[ 	]*[a-f0-9]+:	36 8b 00[ 	]+mov[ 	]+%ss:\(%rax\),%eax
-[ 	]*[a-f0-9]+:	36 8b 01[ 	]+mov[ 	]+%ss:\(%rcx\),%eax
-[ 	]*[a-f0-9]+:	36 8b 02[ 	]+mov[ 	]+%ss:\(%rdx\),%eax
-[ 	]*[a-f0-9]+:	36 8b 03[ 	]+mov[ 	]+%ss:\(%rbx\),%eax
+[ 	]*[a-f0-9]+:	36 8b 00[ 	]+ss mov[ 	]+\(%rax\),%eax
+[ 	]*[a-f0-9]+:	36 8b 01[ 	]+ss mov[ 	]+\(%rcx\),%eax
+[ 	]*[a-f0-9]+:	36 8b 02[ 	]+ss mov[ 	]+\(%rdx\),%eax
+[ 	]*[a-f0-9]+:	36 8b 03[ 	]+ss mov[ 	]+\(%rbx\),%eax
 [ 	]*[a-f0-9]+:	8b 04 24[ 	]+mov[ 	]+\(%rsp\),%eax
 [ 	]*[a-f0-9]+:	8b 45 00[ 	]+mov[ 	]+((0x)?0)?\(%rbp\),%eax
-[ 	]*[a-f0-9]+:	36 8b 06[ 	]+mov[ 	]+%ss:\(%rsi\),%eax
-[ 	]*[a-f0-9]+:	36 8b 07[ 	]+mov[ 	]+%ss:\(%rdi\),%eax
-[ 	]*[a-f0-9]+:	36 41 8b 00[ 	]+mov[ 	]+%ss:\(%r8\),%eax
-[ 	]*[a-f0-9]+:	36 41 8b 01[ 	]+mov[ 	]+%ss:\(%r9\),%eax
-[ 	]*[a-f0-9]+:	36 41 8b 02[ 	]+mov[ 	]+%ss:\(%r10\),%eax
-[ 	]*[a-f0-9]+:	36 41 8b 03[ 	]+mov[ 	]+%ss:\(%r11\),%eax
-[ 	]*[a-f0-9]+:	36 41 8b 04 24[ 	]+mov[ 	]+%ss:\(%r12\),%eax
-[ 	]*[a-f0-9]+:	36 41 8b 45 00[ 	]+mov[ 	]+%ss:((0x)?0)?\(%r13\),%eax
-[ 	]*[a-f0-9]+:	36 41 8b 06[ 	]+mov[ 	]+%ss:\(%r14\),%eax
-[ 	]*[a-f0-9]+:	36 41 8b 07[ 	]+mov[ 	]+%ss:\(%r15\),%eax
+[ 	]*[a-f0-9]+:	36 8b 06[ 	]+ss mov[ 	]+\(%rsi\),%eax
+[ 	]*[a-f0-9]+:	36 8b 07[ 	]+ss mov[ 	]+\(%rdi\),%eax
+[ 	]*[a-f0-9]+:	36 41 8b 00[ 	]+ss mov[ 	]+\(%r8\),%eax
+[ 	]*[a-f0-9]+:	36 41 8b 01[ 	]+ss mov[ 	]+\(%r9\),%eax
+[ 	]*[a-f0-9]+:	36 41 8b 02[ 	]+ss mov[ 	]+\(%r10\),%eax
+[ 	]*[a-f0-9]+:	36 41 8b 03[ 	]+ss mov[ 	]+\(%r11\),%eax
+[ 	]*[a-f0-9]+:	36 41 8b 04 24[ 	]+ss mov[ 	]+\(%r12\),%eax
+[ 	]*[a-f0-9]+:	36 41 8b 45 00[ 	]+ss mov[ 	]+((0x)?0)?\(%r13\),%eax
+[ 	]*[a-f0-9]+:	36 41 8b 06[ 	]+ss mov[ 	]+\(%r14\),%eax
+[ 	]*[a-f0-9]+:	36 41 8b 07[ 	]+ss mov[ 	]+\(%r15\),%eax
 #pass