x86/Intel: correct MOVSD and CMPSD handling

First and foremost the EsSeg attribute was misplaced for CMPSD. Then
both it and MOVSD were lacking Dword on both of their operands.
Finally string insns with multiple operands and requiring use of ES:
had the wrong operand number reported in the diagnostic.

9 files changed, 233 insertions, 12 deletions

diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c
index 5d783b4..b9c3124 100644
--- a/gas/config/tc-i386.c
+++ b/gas/config/tc-i386.c
@@ -6198,7 +6198,7 @@ check_string (void)
 	{
 	  as_bad (_("`%s' operand %d must use `%ses' segment"),
 		  i.tm.name,
-		  mem_op + 1,
+		  intel_syntax ? i.tm.operands - mem_op : mem_op + 1,
 		  register_prefix);
 	  return 0;
 	}
@@ -6214,7 +6214,7 @@ check_string (void)
 	{
 	  as_bad (_("`%s' operand %d must use `%ses' segment"),
 		  i.tm.name,
-		  mem_op + 2,
+		  intel_syntax ? i.tm.operands - mem_op - 1 : mem_op + 2,
 		  register_prefix);
 	  return 0;
 	}
diff --git a/gas/testsuite/gas/i386/i386.exp b/gas/testsuite/gas/i386/i386.exp
index 988f3ff..80bb0d5 100644
--- a/gas/testsuite/gas/i386/i386.exp
+++ b/gas/testsuite/gas/i386/i386.exp
@@ -529,6 +529,7 @@ if [expr ([istarget "i*86-*-*"] ||  [istarget "x86_64-*-*"]) && [gas_32_check]]
 	run_list_test "reloc32" "--defsym _bad_=1"
 	run_dump_test "intel-got32"
 	run_dump_test "intel-movs32"
+	run_dump_test "intel-cmps32"
 	run_list_test "inval-equ-1" "-al"
 	run_list_test "inval-equ-2" "-al"
 	run_dump_test "ifunc"
@@ -717,6 +718,7 @@ if [expr ([istarget "i*86-*-*"] || [istarget "x86_64-*-*"]) && [gas_64_check]] t
     run_dump_test "x86-64-disp"
     run_dump_test "x86-64-disp-intel"
     run_dump_test "intel-movs64"
+    run_dump_test "intel-cmps64"
     run_dump_test "x86-64-disp32"
     run_dump_test "rexw"
     run_list_test "x86-64-specific-reg"
diff --git a/gas/testsuite/gas/i386/intel-cmps.s b/gas/testsuite/gas/i386/intel-cmps.s
new file mode 100644
index 0000000..6703777
--- /dev/null
+++ b/gas/testsuite/gas/i386/intel-cmps.s
@@ -0,0 +1,49 @@
+	.text
+	.intel_syntax noprefix
+
+cmps:
+	cmpsb
+	cmpsb	[esi], es:[edi]
+	cmpsb	fs:[esi], es:[edi]
+	cmpsb	[esi], [edi]
+	cmpsb	byte ptr [esi], es:[edi]
+	cmpsb	[esi], byte ptr es:[edi]
+	cmpsb	byte ptr [esi], byte ptr es:[edi]
+	cmps	byte ptr [esi], es:[edi]
+	cmps	[esi], byte ptr es:[edi]
+	cmps	byte ptr [esi], byte ptr es:[edi]
+
+	cmpsw
+	cmpsw	[esi], es:[edi]
+	cmpsw	fs:[esi], es:[edi]
+	cmpsw	[esi], [edi]
+	cmpsw	word ptr [esi], es:[edi]
+	cmpsw	[esi], word ptr es:[edi]
+	cmpsw	word ptr [esi], word ptr es:[edi]
+	cmps	word ptr [esi], es:[edi]
+	cmps	[esi], word ptr es:[edi]
+	cmps	word ptr [esi], word ptr es:[edi]
+
+	cmpsd
+	cmpsd	[esi], es:[edi]
+	cmpsd	fs:[esi], es:[edi]
+	cmpsd	[esi], [edi]
+	cmpsd	dword ptr [esi], es:[edi]
+	cmpsd	[esi], dword ptr es:[edi]
+	cmpsd	dword ptr [esi], dword ptr es:[edi]
+	cmps	dword ptr [esi], es:[edi]
+	cmps	[esi], dword ptr es:[edi]
+	cmps	dword ptr [esi], dword ptr es:[edi]
+
+.ifdef x86_64
+	cmpsq
+	cmpsq	[rsi], es:[rdi]
+	cmpsq	fs:[rsi], es:[rdi]
+	cmpsq	[rsi], [rdi]
+	cmpsq	qword ptr [rsi], es:[rdi]
+	cmpsq	[rsi], qword ptr es:[rdi]
+	cmpsq	qword ptr [rsi], qword ptr es:[rdi]
+	cmps	qword ptr [rsi], es:[rdi]
+	cmps	[rsi], qword ptr es:[rdi]
+	cmps	qword ptr [rsi], qword ptr es:[rdi]
+.endif
diff --git a/gas/testsuite/gas/i386/intel-cmps32.d b/gas/testsuite/gas/i386/intel-cmps32.d
new file mode 100644
index 0000000..4dfb40d
--- /dev/null
+++ b/gas/testsuite/gas/i386/intel-cmps32.d
@@ -0,0 +1,40 @@
+#objdump: -dMintel
+#source: intel-cmps.s
+#name: x86 Intel cmps (32-bit object)
+
+.*: +file format .*
+
+Disassembly of section .text:
+
+0+ <cmps>:
+[ 	]*[a-f0-9]+:	a6 *	cmps(b *| +BYTE PTR (ds:)?\[esi\]),(BYTE PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	a6 *	cmps(b *| +BYTE PTR (ds:)?\[esi\]),(BYTE PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	64 a6 *	cmps +BYTE PTR fs:\[esi\],(BYTE PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	a6 *	cmps(b *| +BYTE PTR (ds:)?\[esi\]),(BYTE PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	a6 *	cmps(b *| +BYTE PTR (ds:)?\[esi\]),(BYTE PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	a6 *	cmps(b *| +BYTE PTR (ds:)?\[esi\]),(BYTE PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	a6 *	cmps(b *| +BYTE PTR (ds:)?\[esi\]),(BYTE PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	a6 *	cmps(b *| +BYTE PTR (ds:)?\[esi\]),(BYTE PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	a6 *	cmps(b *| +BYTE PTR (ds:)?\[esi\]),(BYTE PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	a6 *	cmps(b *| +BYTE PTR (ds:)?\[esi\]),(BYTE PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	66 a7 *	cmps(w *| +WORD PTR (ds:)?\[esi\]),(WORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	66 a7 *	cmps(w *| +WORD PTR (ds:)?\[esi\]),(WORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	64 66 a7 *	cmps +WORD PTR fs:\[esi\],(WORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	66 a7 *	cmps(w *| +WORD PTR (ds:)?\[esi\]),(WORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	66 a7 *	cmps(w *| +WORD PTR (ds:)?\[esi\]),(WORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	66 a7 *	cmps(w *| +WORD PTR (ds:)?\[esi\]),(WORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	66 a7 *	cmps(w *| +WORD PTR (ds:)?\[esi\]),(WORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	66 a7 *	cmps(w *| +WORD PTR (ds:)?\[esi\]),(WORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	66 a7 *	cmps(w *| +WORD PTR (ds:)?\[esi\]),(WORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	66 a7 *	cmps(w *| +WORD PTR (ds:)?\[esi\]),(WORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	a7 *	cmps(d *| +DWORD PTR (ds:)?\[esi\]),(DWORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	a7 *	cmps(d *| +DWORD PTR (ds:)?\[esi\]),(DWORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	64 a7 *	cmps +DWORD PTR fs:?\[esi\],(DWORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	a7 *	cmps(d *| +DWORD PTR (ds:)?\[esi\]),(DWORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	a7 *	cmps(d *| +DWORD PTR (ds:)?\[esi\]),(DWORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	a7 *	cmps(d *| +DWORD PTR (ds:)?\[esi\]),(DWORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	a7 *	cmps(d *| +DWORD PTR (ds:)?\[esi\]),(DWORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	a7 *	cmps(d *| +DWORD PTR (ds:)?\[esi\]),(DWORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	a7 *	cmps(d *| +DWORD PTR (ds:)?\[esi\]),(DWORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	a7 *	cmps(d *| +DWORD PTR (ds:)?\[esi\]),(DWORD PTR )?es:\[edi\]
+#pass
diff --git a/gas/testsuite/gas/i386/intel-cmps64.d b/gas/testsuite/gas/i386/intel-cmps64.d
new file mode 100644
index 0000000..e8590c3
--- /dev/null
+++ b/gas/testsuite/gas/i386/intel-cmps64.d
@@ -0,0 +1,50 @@
+#objdump: -dMintel
+#source: intel-cmps.s
+#name: x86 Intel cmps (64-bit object)
+
+.*: +file format .*
+
+Disassembly of section .text:
+
+0+ <cmps>:
+[ 	]*[a-f0-9]+:	a6 *	cmps(b *| +BYTE PTR (ds:)?\[rsi\]),(BYTE PTR )?es:\[rdi\]
+[ 	]*[a-f0-9]+:	67 a6 *	cmps +BYTE PTR (ds:)?\[esi\],(BYTE PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	64 67 a6 *	cmps +BYTE PTR fs:\[esi\],(BYTE PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 a6 *	cmps +BYTE PTR (ds:)?\[esi\],(BYTE PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 a6 *	cmps +BYTE PTR (ds:)?\[esi\],(BYTE PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 a6 *	cmps +BYTE PTR (ds:)?\[esi\],(BYTE PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 a6 *	cmps +BYTE PTR (ds:)?\[esi\],(BYTE PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 a6 *	cmps +BYTE PTR (ds:)?\[esi\],(BYTE PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 a6 *	cmps +BYTE PTR (ds:)?\[esi\],(BYTE PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 a6 *	cmps +BYTE PTR (ds:)?\[esi\],(BYTE PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	66 a7 *	cmps(w *| +WORD PTR (ds:)?\[rsi\]),(WORD PTR )?es:\[rdi\]
+[ 	]*[a-f0-9]+:	67 66 a7 *	cmps +WORD PTR (ds:)?\[esi\],(WORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	64 67 66 a7 *	cmps +WORD PTR fs:\[esi\],(WORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 66 a7 *	cmps +WORD PTR (ds:)?\[esi\],(WORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 66 a7 *	cmps +WORD PTR (ds:)?\[esi\],(WORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 66 a7 *	cmps +WORD PTR (ds:)?\[esi\],(WORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 66 a7 *	cmps +WORD PTR (ds:)?\[esi\],(WORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 66 a7 *	cmps +WORD PTR (ds:)?\[esi\],(WORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 66 a7 *	cmps +WORD PTR (ds:)?\[esi\],(WORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 66 a7 *	cmps +WORD PTR (ds:)?\[esi\],(WORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	a7 *	cmps(d *| +DWORD PTR (ds:)?\[rsi\]),(DWORD PTR )?es:\[rdi\]
+[ 	]*[a-f0-9]+:	67 a7 *	cmps +DWORD PTR (ds:)?\[esi\],(DWORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	64 67 a7 *	cmps +DWORD PTR fs:\[esi\],(DWORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 a7 *	cmps +DWORD PTR (ds:)?\[esi\],(DWORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 a7 *	cmps +DWORD PTR (ds:)?\[esi\],(DWORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 a7 *	cmps +DWORD PTR (ds:)?\[esi\],(DWORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 a7 *	cmps +DWORD PTR (ds:)?\[esi\],(DWORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 a7 *	cmps +DWORD PTR (ds:)?\[esi\],(DWORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 a7 *	cmps +DWORD PTR (ds:)?\[esi\],(DWORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	67 a7 *	cmps +DWORD PTR (ds:)?\[esi\],(DWORD PTR )?es:\[edi\]
+[ 	]*[a-f0-9]+:	48 a7 *	cmps(q *| +QWORD PTR (ds:)?\[rsi\]),(QWORD PTR )?es:\[rdi\]
+[ 	]*[a-f0-9]+:	48 a7 *	cmps(q *| +QWORD PTR (ds:)?\[rsi\]),(QWORD PTR )?es:\[rdi\]
+[ 	]*[a-f0-9]+:	64 48 a7 *	cmps +QWORD PTR fs:?\[rsi\],(QWORD PTR )?es:\[rdi\]
+[ 	]*[a-f0-9]+:	48 a7 *	cmps(q *| +QWORD PTR (ds:)?\[rsi\]),(QWORD PTR )?es:\[rdi\]
+[ 	]*[a-f0-9]+:	48 a7 *	cmps(q *| +QWORD PTR (ds:)?\[rsi\]),(QWORD PTR )?es:\[rdi\]
+[ 	]*[a-f0-9]+:	48 a7 *	cmps(q *| +QWORD PTR (ds:)?\[rsi\]),(QWORD PTR )?es:\[rdi\]
+[ 	]*[a-f0-9]+:	48 a7 *	cmps(q *| +QWORD PTR (ds:)?\[rsi\]),(QWORD PTR )?es:\[rdi\]
+[ 	]*[a-f0-9]+:	48 a7 *	cmps(q *| +QWORD PTR (ds:)?\[rsi\]),(QWORD PTR )?es:\[rdi\]
+[ 	]*[a-f0-9]+:	48 a7 *	cmps(q *| +QWORD PTR (ds:)?\[rsi\]),(QWORD PTR )?es:\[rdi\]
+[ 	]*[a-f0-9]+:	48 a7 *	cmps(q *| +QWORD PTR (ds:)?\[rsi\]),(QWORD PTR )?es:\[rdi\]
+#pass
diff --git a/gas/testsuite/gas/i386/intel-movs.s b/gas/testsuite/gas/i386/intel-movs.s
index 2ea1c96..ba54dec 100644
--- a/gas/testsuite/gas/i386/intel-movs.s
+++ b/gas/testsuite/gas/i386/intel-movs.s
@@ -5,14 +5,45 @@ movs:
 	movsb
 	movsb	es:[edi], [esi]
 	movsb	es:[edi], fs:[esi]
+	movsb	[edi], [esi]
+	movsb	byte ptr es:[edi], [esi]
+	movsb	es:[edi], byte ptr [esi]
+	movsb	byte ptr es:[edi], byte ptr [esi]
+	movs	byte ptr es:[edi], [esi]
+	movs	es:[edi], byte ptr [esi]
+	movs	byte ptr es:[edi], byte ptr [esi]
+
 	movsw
 	movsw	es:[edi], [esi]
 	movsw	es:[edi], fs:[esi]
+	movsw	[edi], [esi]
+	movsw	word ptr es:[edi], [esi]
+	movsw	es:[edi], word ptr [esi]
+	movsw	word ptr es:[edi], word ptr [esi]
+	movs	word ptr es:[edi], [esi]
+	movs	es:[edi], word ptr [esi]
+	movs	word ptr es:[edi], word ptr [esi]
+
 	movsd
 	movsd	es:[edi], [esi]
 	movsd	es:[edi], fs:[esi]
+	movsd	[edi], [esi]
+	movsd	dword ptr es:[edi], [esi]
+	movsd	es:[edi], dword ptr [esi]
+	movsd	dword ptr es:[edi], dword ptr [esi]
+	movs	dword ptr es:[edi], [esi]
+	movs	es:[edi], dword ptr [esi]
+	movs	dword ptr es:[edi], dword ptr [esi]
+
 .ifdef x86_64
 	movsq
 	movsq	es:[rdi], [rsi]
 	movsq	es:[rdi], fs:[rsi]
+	movsq	[rdi], [rsi]
+	movsq	qword ptr es:[rdi], [rsi]
+	movsq	es:[rdi], qword ptr [rsi]
+	movsq	qword ptr es:[rdi], qword ptr [rsi]
+	movs	qword ptr es:[rdi], [rsi]
+	movs	es:[rdi], qword ptr [rsi]
+	movs	qword ptr es:[rdi], qword ptr [rsi]
 .endif
diff --git a/gas/testsuite/gas/i386/intel-movs32.d b/gas/testsuite/gas/i386/intel-movs32.d
index 43d5033..f173148 100644
--- a/gas/testsuite/gas/i386/intel-movs32.d
+++ b/gas/testsuite/gas/i386/intel-movs32.d
@@ -10,10 +10,31 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	a4 *	movs(b *| +BYTE PTR es:\[edi\],(BYTE PTR )?(ds:)?\[esi\])
 [ 	]*[a-f0-9]+:	a4 *	movs(b *| +BYTE PTR es:\[edi\],(BYTE PTR )?(ds:)?\[esi\])
 [ 	]*[a-f0-9]+:	64 a4 *	movs +BYTE PTR es:\[edi\],(BYTE PTR )?fs:\[esi\]
+[ 	]*[a-f0-9]+:	a4 *	movs(b *| +BYTE PTR es:\[edi\],(BYTE PTR )?(ds:)?\[esi\])
+[ 	]*[a-f0-9]+:	a4 *	movs(b *| +BYTE PTR es:\[edi\],(BYTE PTR )?(ds:)?\[esi\])
+[ 	]*[a-f0-9]+:	a4 *	movs(b *| +BYTE PTR es:\[edi\],(BYTE PTR )?(ds:)?\[esi\])
+[ 	]*[a-f0-9]+:	a4 *	movs(b *| +BYTE PTR es:\[edi\],(BYTE PTR )?(ds:)?\[esi\])
+[ 	]*[a-f0-9]+:	a4 *	movs(b *| +BYTE PTR es:\[edi\],(BYTE PTR )?(ds:)?\[esi\])
+[ 	]*[a-f0-9]+:	a4 *	movs(b *| +BYTE PTR es:\[edi\],(BYTE PTR )?(ds:)?\[esi\])
+[ 	]*[a-f0-9]+:	a4 *	movs(b *| +BYTE PTR es:\[edi\],(BYTE PTR )?(ds:)?\[esi\])
 [ 	]*[a-f0-9]+:	66 a5 *	movs(w *| +WORD PTR es:\[edi\],(WORD PTR )?(ds:)?\[esi\])
 [ 	]*[a-f0-9]+:	66 a5 *	movs(w *| +WORD PTR es:\[edi\],(WORD PTR )?(ds:)?\[esi\])
 [ 	]*[a-f0-9]+:	64 66 a5 *	movs +WORD PTR es:\[edi\],(WORD PTR )?fs:\[esi\]
+[ 	]*[a-f0-9]+:	66 a5 *	movs(w *| +WORD PTR es:\[edi\],(WORD PTR )?(ds:)?\[esi\])
+[ 	]*[a-f0-9]+:	66 a5 *	movs(w *| +WORD PTR es:\[edi\],(WORD PTR )?(ds:)?\[esi\])
+[ 	]*[a-f0-9]+:	66 a5 *	movs(w *| +WORD PTR es:\[edi\],(WORD PTR )?(ds:)?\[esi\])
+[ 	]*[a-f0-9]+:	66 a5 *	movs(w *| +WORD PTR es:\[edi\],(WORD PTR )?(ds:)?\[esi\])
+[ 	]*[a-f0-9]+:	66 a5 *	movs(w *| +WORD PTR es:\[edi\],(WORD PTR )?(ds:)?\[esi\])
+[ 	]*[a-f0-9]+:	66 a5 *	movs(w *| +WORD PTR es:\[edi\],(WORD PTR )?(ds:)?\[esi\])
+[ 	]*[a-f0-9]+:	66 a5 *	movs(w *| +WORD PTR es:\[edi\],(WORD PTR )?(ds:)?\[esi\])
 [ 	]*[a-f0-9]+:	a5 *	movs(d *| +DWORD PTR es:\[edi\],(DWORD PTR )?(ds:)?\[esi\])
 [ 	]*[a-f0-9]+:	a5 *	movs(d *| +DWORD PTR es:\[edi\],(DWORD PTR )?(ds:)?\[esi\])
 [ 	]*[a-f0-9]+:	64 a5 *	movs +DWORD PTR es:\[edi\],(DWORD PTR )?fs:?\[esi\]
+[ 	]*[a-f0-9]+:	a5 *	movs(d *| +DWORD PTR es:\[edi\],(DWORD PTR )?(ds:)?\[esi\])
+[ 	]*[a-f0-9]+:	a5 *	movs(d *| +DWORD PTR es:\[edi\],(DWORD PTR )?(ds:)?\[esi\])
+[ 	]*[a-f0-9]+:	a5 *	movs(d *| +DWORD PTR es:\[edi\],(DWORD PTR )?(ds:)?\[esi\])
+[ 	]*[a-f0-9]+:	a5 *	movs(d *| +DWORD PTR es:\[edi\],(DWORD PTR )?(ds:)?\[esi\])
+[ 	]*[a-f0-9]+:	a5 *	movs(d *| +DWORD PTR es:\[edi\],(DWORD PTR )?(ds:)?\[esi\])
+[ 	]*[a-f0-9]+:	a5 *	movs(d *| +DWORD PTR es:\[edi\],(DWORD PTR )?(ds:)?\[esi\])
+[ 	]*[a-f0-9]+:	a5 *	movs(d *| +DWORD PTR es:\[edi\],(DWORD PTR )?(ds:)?\[esi\])
 #pass
diff --git a/gas/testsuite/gas/i386/intel-movs64.d b/gas/testsuite/gas/i386/intel-movs64.d
index b61be72..832239c 100644
--- a/gas/testsuite/gas/i386/intel-movs64.d
+++ b/gas/testsuite/gas/i386/intel-movs64.d
@@ -10,13 +10,41 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	a4 *	movs(b *| +BYTE PTR es:\[rdi\],(BYTE PTR )?(ds:)?\[rsi\])
 [ 	]*[a-f0-9]+:	67 a4 *	movs +BYTE PTR es:\[edi\],(BYTE PTR )?(ds:)?\[esi\]
 [ 	]*[a-f0-9]+:	64 67 a4 *	movs +BYTE PTR es:\[edi\],(BYTE PTR )?fs:\[esi\]
+[ 	]*[a-f0-9]+:	67 a4 *	movs +BYTE PTR es:\[edi\],(BYTE PTR )?(ds:)?\[esi\]
+[ 	]*[a-f0-9]+:	67 a4 *	movs +BYTE PTR es:\[edi\],(BYTE PTR )?(ds:)?\[esi\]
+[ 	]*[a-f0-9]+:	67 a4 *	movs +BYTE PTR es:\[edi\],(BYTE PTR )?(ds:)?\[esi\]
+[ 	]*[a-f0-9]+:	67 a4 *	movs +BYTE PTR es:\[edi\],(BYTE PTR )?(ds:)?\[esi\]
+[ 	]*[a-f0-9]+:	67 a4 *	movs +BYTE PTR es:\[edi\],(BYTE PTR )?(ds:)?\[esi\]
+[ 	]*[a-f0-9]+:	67 a4 *	movs +BYTE PTR es:\[edi\],(BYTE PTR )?(ds:)?\[esi\]
+[ 	]*[a-f0-9]+:	67 a4 *	movs +BYTE PTR es:\[edi\],(BYTE PTR )?(ds:)?\[esi\]
 [ 	]*[a-f0-9]+:	66 a5 *	movs(w *| +WORD PTR es:\[rdi\],(WORD PTR )?(ds:)?\[rsi\])
 [ 	]*[a-f0-9]+:	67 66 a5 *	movs +WORD PTR es:\[edi\],(WORD PTR )?(ds:)?\[esi\]
 [ 	]*[a-f0-9]+:	64 67 66 a5 *	movs +WORD PTR es:\[edi\],(WORD PTR )?fs:\[esi\]
+[ 	]*[a-f0-9]+:	67 66 a5 *	movs +WORD PTR es:\[edi\],(WORD PTR )?(ds:)?\[esi\]
+[ 	]*[a-f0-9]+:	67 66 a5 *	movs +WORD PTR es:\[edi\],(WORD PTR )?(ds:)?\[esi\]
+[ 	]*[a-f0-9]+:	67 66 a5 *	movs +WORD PTR es:\[edi\],(WORD PTR )?(ds:)?\[esi\]
+[ 	]*[a-f0-9]+:	67 66 a5 *	movs +WORD PTR es:\[edi\],(WORD PTR )?(ds:)?\[esi\]
+[ 	]*[a-f0-9]+:	67 66 a5 *	movs +WORD PTR es:\[edi\],(WORD PTR )?(ds:)?\[esi\]
+[ 	]*[a-f0-9]+:	67 66 a5 *	movs +WORD PTR es:\[edi\],(WORD PTR )?(ds:)?\[esi\]
+[ 	]*[a-f0-9]+:	67 66 a5 *	movs +WORD PTR es:\[edi\],(WORD PTR )?(ds:)?\[esi\]
 [ 	]*[a-f0-9]+:	a5 *	movs(d *| +DWORD PTR es:\[rdi\],(DWORD PTR )?(ds:)?\[rsi\])
 [ 	]*[a-f0-9]+:	67 a5 *	movs +DWORD PTR es:\[edi\],(DWORD PTR )?(ds:)?\[esi\]
 [ 	]*[a-f0-9]+:	64 67 a5 *	movs +DWORD PTR es:\[edi\],(DWORD PTR )?fs:\[esi\]
+[ 	]*[a-f0-9]+:	67 a5 *	movs +DWORD PTR es:\[edi\],(DWORD PTR )?(ds:)?\[esi\]
+[ 	]*[a-f0-9]+:	67 a5 *	movs +DWORD PTR es:\[edi\],(DWORD PTR )?(ds:)?\[esi\]
+[ 	]*[a-f0-9]+:	67 a5 *	movs +DWORD PTR es:\[edi\],(DWORD PTR )?(ds:)?\[esi\]
+[ 	]*[a-f0-9]+:	67 a5 *	movs +DWORD PTR es:\[edi\],(DWORD PTR )?(ds:)?\[esi\]
+[ 	]*[a-f0-9]+:	67 a5 *	movs +DWORD PTR es:\[edi\],(DWORD PTR )?(ds:)?\[esi\]
+[ 	]*[a-f0-9]+:	67 a5 *	movs +DWORD PTR es:\[edi\],(DWORD PTR )?(ds:)?\[esi\]
+[ 	]*[a-f0-9]+:	67 a5 *	movs +DWORD PTR es:\[edi\],(DWORD PTR )?(ds:)?\[esi\]
 [ 	]*[a-f0-9]+:	48 a5 *	movs(q *| +QWORD PTR es:\[rdi\],(QWORD PTR )?(ds:)?\[rsi\])
 [ 	]*[a-f0-9]+:	48 a5 *	movs(q *| +QWORD PTR es:\[rdi\],(QWORD PTR )?(ds:)?\[rsi\])
 [ 	]*[a-f0-9]+:	64 48 a5 *	movs +QWORD PTR es:\[rdi\],(QWORD PTR )?fs:?\[rsi\]
+[ 	]*[a-f0-9]+:	48 a5 *	movs(q *| +QWORD PTR es:\[rdi\],(QWORD PTR )?(ds:)?\[rsi\])
+[ 	]*[a-f0-9]+:	48 a5 *	movs(q *| +QWORD PTR es:\[rdi\],(QWORD PTR )?(ds:)?\[rsi\])
+[ 	]*[a-f0-9]+:	48 a5 *	movs(q *| +QWORD PTR es:\[rdi\],(QWORD PTR )?(ds:)?\[rsi\])
+[ 	]*[a-f0-9]+:	48 a5 *	movs(q *| +QWORD PTR es:\[rdi\],(QWORD PTR )?(ds:)?\[rsi\])
+[ 	]*[a-f0-9]+:	48 a5 *	movs(q *| +QWORD PTR es:\[rdi\],(QWORD PTR )?(ds:)?\[rsi\])
+[ 	]*[a-f0-9]+:	48 a5 *	movs(q *| +QWORD PTR es:\[rdi\],(QWORD PTR )?(ds:)?\[rsi\])
+[ 	]*[a-f0-9]+:	48 a5 *	movs(q *| +QWORD PTR es:\[rdi\],(QWORD PTR )?(ds:)?\[rsi\])
 #pass
diff --git a/gas/testsuite/gas/i386/string-bad.l b/gas/testsuite/gas/i386/string-bad.l
index f133afb..a1a126b 100644
--- a/gas/testsuite/gas/i386/string-bad.l
+++ b/gas/testsuite/gas/i386/string-bad.l
@@ -1,11 +1,11 @@
 .*: Assembler messages:
 .*:4: Error: .*
 .*:5: Error: .*
-.*:6: Error: .*
-.*:7: Error: .*
-.*:8: Error: .*
-.*:9: Error: .*
-.*:10: Error: .*
+.*:6: Error: .*operand 2.*
+.*:7: Error: .*operand 1.*
+.*:8: Error: .*operand 1.*
+.*:9: Error: .*operand 1.*
+.*:10: Error: .*operand 2.*
 .*:11: Warning: .*
 .*:12: Warning: .*
 .*:13: Warning: .*
@@ -14,13 +14,13 @@
 .*:15: Error: .*
 .*:19: Error: .*
 .*:20: Error: .*
-.*:21: Error: .*
+.*:21: Error: .*operand 1.*
 .*:22: Error: .*
-.*:23: Error: .*
-.*:24: Error: .*
+.*:23: Error: .*operand 1.*
+.*:24: Error: .*operand 2.*
 .*:25: Error: .*
-.*:26: Error: .*
-.*:27: Error: .*
+.*:26: Error: .*operand 1.*
+.*:27: Error: .*operand 1.*
 .*:28: Warning: .*
 .*:29: Warning: .*
 .*:30: Warning: .*