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authorH.J. Lu <hjl@lucon.org>2005-03-29 19:30:47 +0000
committerH.J. Lu <hjl@lucon.org>2005-03-29 19:30:47 +0000
commitbe27e757bcac0d7a6e6c1b1474cff0152a951117 (patch)
tree48df18b3a0df9b80a72d44e01f83edf4880fa029 /gas/testsuite
parente52ad8834467f2bfcb402922358c5d72d1fcf1e2 (diff)
downloadbinutils-redhat-be27e757bcac0d7a6e6c1b1474cff0152a951117.tar.gz
gas/testsuite/
2005-03-29 H.J. Lu <hongjiu.lu@intel.com> * gas/i386/i386.exp: Run segment and inval-seg for i386. Run x86-64-segment and x86-64-inval-seg for x86-64. * gas/i386/intel.d: Expect movw for moving between memory and segment register. * gas/i386/naked.d: Likewise. * gas/i386/opcode.d: Likewise. * gas/i386/x86-64-opcode.d: Likewise. * gas/i386/opcode.s: Use movw for moving between memory and segment register. * gas/i386/x86-64-opcode.s: Likewise. * : Likewise. * gas/i386/inval-seg.l: New. * gas/i386/inval-seg.s: New. * gas/i386/segment.l: New. * gas/i386/segment.s: New. * gas/i386/x86-64-inval-seg.l: New. * gas/i386/x86-64-inval-seg.s: New. * gas/i386/x86-64-segment.l: New. * gas/i386/x86-64-segment.s: New. include/opcode/ 2005-03-29 H.J. Lu <hongjiu.lu@intel.com> * i386.h (i386_optab): Don't allow the `l' suffix for moving moving between memory and segment register. Allow movq for moving between general-purpose register and segment register. opcodes/ 2005-03-29 H.J. Lu <hongjiu.lu@intel.com> * i386-dis.c (SEG_Fixup): New. (Sv): New. (dis386): Use "Sv" for 0x8c and 0x8e.
Diffstat (limited to 'gas/testsuite')
-rw-r--r--gas/testsuite/ChangeLog26
-rw-r--r--gas/testsuite/gas/i386/i386.exp4
-rw-r--r--gas/testsuite/gas/i386/intel.d6
-rw-r--r--gas/testsuite/gas/i386/inval-seg.l10
-rw-r--r--gas/testsuite/gas/i386/inval-seg.s4
-rw-r--r--gas/testsuite/gas/i386/naked.d4
-rw-r--r--gas/testsuite/gas/i386/opcode.d6
-rw-r--r--gas/testsuite/gas/i386/opcode.s4
-rw-r--r--gas/testsuite/gas/i386/segment.l10
-rw-r--r--gas/testsuite/gas/i386/segment.s9
-rw-r--r--gas/testsuite/gas/i386/x86-64-inval-seg.l14
-rw-r--r--gas/testsuite/gas/i386/x86-64-inval-seg.s6
-rw-r--r--gas/testsuite/gas/i386/x86-64-opcode.d27
-rw-r--r--gas/testsuite/gas/i386/x86-64-opcode.s26
-rw-r--r--gas/testsuite/gas/i386/x86-64-segment.l12
-rw-r--r--gas/testsuite/gas/i386/x86-64-segment.s12
16 files changed, 137 insertions, 43 deletions
diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog
index 5559174aae..9a03b9dbdb 100644
--- a/gas/testsuite/ChangeLog
+++ b/gas/testsuite/ChangeLog
@@ -1,3 +1,29 @@
+2005-03-29 H.J. Lu <hongjiu.lu@intel.com>
+
+ * gas/i386/i386.exp: Run segment and inval-seg for i386. Run
+ x86-64-segment and x86-64-inval-seg for x86-64.
+
+ * gas/i386/intel.d: Expect movw for moving between memory and
+ segment register.
+ * gas/i386/naked.d: Likewise.
+ * gas/i386/opcode.d: Likewise.
+ * gas/i386/x86-64-opcode.d: Likewise.
+
+ * gas/i386/opcode.s: Use movw for moving between memory and
+ segment register.
+ * gas/i386/x86-64-opcode.s: Likewise.
+
+ * : Likewise.
+
+ * gas/i386/inval-seg.l: New.
+ * gas/i386/inval-seg.s: New.
+ * gas/i386/segment.l: New.
+ * gas/i386/segment.s: New.
+ * gas/i386/x86-64-inval-seg.l: New.
+ * gas/i386/x86-64-inval-seg.s: New.
+ * gas/i386/x86-64-segment.l: New.
+ * gas/i386/x86-64-segment.s: New.
+
2005-03-29 Daniel Jacobowitz <dan@codesourcery.com>
* gas/arm/tls.s, gas/arm/tls.d: New files.
diff --git a/gas/testsuite/gas/i386/i386.exp b/gas/testsuite/gas/i386/i386.exp
index 1cb1af3b6b..24ca1a6d71 100644
--- a/gas/testsuite/gas/i386/i386.exp
+++ b/gas/testsuite/gas/i386/i386.exp
@@ -42,6 +42,8 @@ if [expr ([istarget "i*86-*-*"] || [istarget "x86_64-*-*"]) && [gas_32_check]]
run_list_test "float" "-al"
run_list_test "general" "-al --listing-lhs-width=2"
run_list_test "inval" "-al"
+ run_list_test "segment" "-al"
+ run_list_test "inval-seg" "-al"
run_list_test "modrm" "-al --listing-lhs-width=2"
run_dump_test "naked"
run_dump_test "opcode"
@@ -120,6 +122,8 @@ if [expr ([istarget "i*86-*-*"] || [istarget "x86_64-*-*"]) && [gas_64_check]] t
run_dump_test "x86-64-opcode"
run_dump_test "x86-64-rip"
run_list_test "x86-64-inval" "-al"
+ run_list_test "x86-64-segment" "-al"
+ run_list_test "x86-64-inval-seg" "-al"
# For ELF targets verify that @unwind works.
if { ([istarget "*-*-elf*"] || [istarget "*-*-linux*"]
diff --git a/gas/testsuite/gas/i386/intel.d b/gas/testsuite/gas/i386/intel.d
index 3fb927051b..02b1a0a197 100644
--- a/gas/testsuite/gas/i386/intel.d
+++ b/gas/testsuite/gas/i386/intel.d
@@ -138,9 +138,9 @@ Disassembly of section .text:
1a3: 89 90 90 90 90 90 [ ]*mov %edx,0x90909090\(%eax\)
1a9: 8a 90 90 90 90 90 [ ]*mov 0x90909090\(%eax\),%dl
1af: 8b 90 90 90 90 90 [ ]*mov 0x90909090\(%eax\),%edx
- 1b5: 8c 90 90 90 90 90 [ ]*movl %ss,0x90909090\(%eax\)
+ 1b5: 8c 90 90 90 90 90 [ ]*movw %ss,0x90909090\(%eax\)
1bb: 8d 90 90 90 90 90 [ ]*lea 0x90909090\(%eax\),%edx
- 1c1: 8e 90 90 90 90 90 [ ]*movl 0x90909090\(%eax\),%ss
+ 1c1: 8e 90 90 90 90 90 [ ]*movw 0x90909090\(%eax\),%ss
1c7: 8f 80 90 90 90 90 [ ]*popl 0x90909090\(%eax\)
1cd: 90 [ ]*nop
1ce: 91 [ ]*xchg %eax,%ecx
@@ -481,7 +481,7 @@ Disassembly of section .text:
7be: 66 87 90 90 90 90 90 [ ]*xchg %dx,0x90909090\(%eax\)
7c5: 66 89 90 90 90 90 90 [ ]*mov %dx,0x90909090\(%eax\)
7cc: 66 8b 90 90 90 90 90 [ ]*mov 0x90909090\(%eax\),%dx
- 7d3: 8c 90 90 90 90 90 [ ]*mov[l ] %ss,0x90909090\(%eax\)
+ 7d3: 8c 90 90 90 90 90 [ ]*mov[w ] %ss,0x90909090\(%eax\)
7d9: 66 8d 90 90 90 90 90 [ ]*lea 0x90909090\(%eax\),%dx
7e0: 66 8f 80 90 90 90 90 [ ]*popw 0x90909090\(%eax\)
7e7: 66 91 [ ]*xchg %ax,%cx
diff --git a/gas/testsuite/gas/i386/inval-seg.l b/gas/testsuite/gas/i386/inval-seg.l
new file mode 100644
index 0000000000..efe190e999
--- /dev/null
+++ b/gas/testsuite/gas/i386/inval-seg.l
@@ -0,0 +1,10 @@
+.*: Assembler messages:
+.*:3: Error: .*
+.*:4: Error: .*
+GAS LISTING .*
+
+
+ 1 [ ]* .text
+ 2 [ ]*# All the following should be illegal
+ 3 [ ]* movl %ds,\(%eax\)
+ 4 [ ]* movl \(%eax\),%ds
diff --git a/gas/testsuite/gas/i386/inval-seg.s b/gas/testsuite/gas/i386/inval-seg.s
new file mode 100644
index 0000000000..4cc222145e
--- /dev/null
+++ b/gas/testsuite/gas/i386/inval-seg.s
@@ -0,0 +1,4 @@
+ .text
+# All the following should be illegal
+ movl %ds,(%eax)
+ movl (%eax),%ds
diff --git a/gas/testsuite/gas/i386/naked.d b/gas/testsuite/gas/i386/naked.d
index 206e3002b1..b516db8c5b 100644
--- a/gas/testsuite/gas/i386/naked.d
+++ b/gas/testsuite/gas/i386/naked.d
@@ -11,8 +11,8 @@ Disassembly of section .text:
a: b2 20 [ ]*mov \$0x20,%dl
c: bb 00 00 00 00 [ ]*mov \$0x0,%ebx d: (R_386_)?(dir)?32 .text
11: d9 c9 [ ]*fxch %st\(1\)
- 13: 36 8c a4 81 d2 04 00 00 [ ]*movl %fs,%ss:0x4d2\(%ecx,%eax,4\)
- 1b: 8c 2c ed 00 00 00 00 [ ]*movl %gs,0x0\(,%ebp,8\)
+ 13: 36 8c a4 81 d2 04 00 00 [ ]*movw %fs,%ss:0x4d2\(%ecx,%eax,4\)
+ 1b: 8c 2c ed 00 00 00 00 [ ]*movw %gs,0x0\(,%ebp,8\)
22: 26 88 25 00 00 00 00 [ ]*mov %ah,%es:0x0
29: 2e 8b 74 14 80 [ ]*mov %cs:0xffffff80\(%esp,%edx,1\),%esi
2e: f3 65 a5 [ ]*repz movsl %gs:\(%esi\),%es:\(%edi\)
diff --git a/gas/testsuite/gas/i386/opcode.d b/gas/testsuite/gas/i386/opcode.d
index cf91a77e80..808ddc5371 100644
--- a/gas/testsuite/gas/i386/opcode.d
+++ b/gas/testsuite/gas/i386/opcode.d
@@ -137,9 +137,9 @@ Disassembly of section .text:
1a3: 89 90 90 90 90 90 [ ]*mov %edx,0x90909090\(%eax\)
1a9: 8a 90 90 90 90 90 [ ]*mov 0x90909090\(%eax\),%dl
1af: 8b 90 90 90 90 90 [ ]*mov 0x90909090\(%eax\),%edx
- 1b5: 8c 90 90 90 90 90 [ ]*movl %ss,0x90909090\(%eax\)
+ 1b5: 8c 90 90 90 90 90 [ ]*movw %ss,0x90909090\(%eax\)
1bb: 8d 90 90 90 90 90 [ ]*lea 0x90909090\(%eax\),%edx
- 1c1: 8e 90 90 90 90 90 [ ]*movl 0x90909090\(%eax\),%ss
+ 1c1: 8e 90 90 90 90 90 [ ]*movw 0x90909090\(%eax\),%ss
1c7: 8f 80 90 90 90 90 [ ]*popl 0x90909090\(%eax\)
1cd: 90 [ ]*nop
1ce: 91 [ ]*xchg %eax,%ecx
@@ -480,7 +480,7 @@ Disassembly of section .text:
7be: 66 87 90 90 90 90 90 [ ]*xchg %dx,0x90909090\(%eax\)
7c5: 66 89 90 90 90 90 90 [ ]*mov %dx,0x90909090\(%eax\)
7cc: 66 8b 90 90 90 90 90 [ ]*mov 0x90909090\(%eax\),%dx
- 7d3: 8c 90 90 90 90 90 [ ]*mov[l ] %ss,0x90909090\(%eax\)
+ 7d3: 8c 90 90 90 90 90 [ ]*mov[w ] %ss,0x90909090\(%eax\)
7d9: 66 8d 90 90 90 90 90 [ ]*lea 0x90909090\(%eax\),%dx
7e0: 66 8f 80 90 90 90 90 [ ]*popw 0x90909090\(%eax\)
7e7: 66 91 [ ]*xchg %ax,%cx
diff --git a/gas/testsuite/gas/i386/opcode.s b/gas/testsuite/gas/i386/opcode.s
index e3fbdfe9d2..8d7cd050f1 100644
--- a/gas/testsuite/gas/i386/opcode.s
+++ b/gas/testsuite/gas/i386/opcode.s
@@ -130,9 +130,9 @@ foo:
mov %edx,0x90909090(%eax)
mov 0x90909090(%eax),%dl
mov 0x90909090(%eax),%edx
- movl %ss,0x90909090(%eax)
+ movw %ss,0x90909090(%eax)
lea 0x90909090(%eax),%edx
- movl 0x90909090(%eax),%ss
+ movw 0x90909090(%eax),%ss
popl 0x90909090(%eax)
xchg %eax,%eax
xchg %eax,%ecx
diff --git a/gas/testsuite/gas/i386/segment.l b/gas/testsuite/gas/i386/segment.l
new file mode 100644
index 0000000000..59c081e305
--- /dev/null
+++ b/gas/testsuite/gas/i386/segment.l
@@ -0,0 +1,10 @@
+ 1 .psize 0
+ 2 .text
+ 3 # test segment reg insns with memory operand
+ 4 0000 8C18 movw %ds,\(%eax\)
+ 5 0002 8C18 mov %ds,\(%eax\)
+ 6 0004 8E18 movw \(%eax\),%ds
+ 7 0006 8E18 mov \(%eax\),%ds
+ 8 # Force a good alignment.
+ 9 0008 00000000 .p2align 4,0
+ 9 00000000
diff --git a/gas/testsuite/gas/i386/segment.s b/gas/testsuite/gas/i386/segment.s
new file mode 100644
index 0000000000..6c2850ccc7
--- /dev/null
+++ b/gas/testsuite/gas/i386/segment.s
@@ -0,0 +1,9 @@
+.psize 0
+.text
+# test segment reg insns with memory operand
+ movw %ds,(%eax)
+ mov %ds,(%eax)
+ movw (%eax),%ds
+ mov (%eax),%ds
+ # Force a good alignment.
+ .p2align 4,0
diff --git a/gas/testsuite/gas/i386/x86-64-inval-seg.l b/gas/testsuite/gas/i386/x86-64-inval-seg.l
new file mode 100644
index 0000000000..adef5d41d4
--- /dev/null
+++ b/gas/testsuite/gas/i386/x86-64-inval-seg.l
@@ -0,0 +1,14 @@
+.*: Assembler messages:
+.*:3: Error: .*
+.*:4: Error: .*
+.*:5: Error: .*
+.*:6: Error: .*
+GAS LISTING .*
+
+
+ 1 [ ]* .text
+ 2 [ ]*# All the following should be illegal
+ 3 [ ]* movq %ds,\(%rax\)
+ 4 [ ]* movl %ds,\(%rax\)
+ 5 [ ]* movq \(%rax\),%ds
+ 6 [ ]* movl \(%rax\),%ds
diff --git a/gas/testsuite/gas/i386/x86-64-inval-seg.s b/gas/testsuite/gas/i386/x86-64-inval-seg.s
new file mode 100644
index 0000000000..bb54742236
--- /dev/null
+++ b/gas/testsuite/gas/i386/x86-64-inval-seg.s
@@ -0,0 +1,6 @@
+ .text
+# All the following should be illegal
+ movq %ds,(%rax)
+ movl %ds,(%rax)
+ movq (%rax),%ds
+ movl (%rax),%ds
diff --git a/gas/testsuite/gas/i386/x86-64-opcode.d b/gas/testsuite/gas/i386/x86-64-opcode.d
index 671876d8f5..13d58be1bd 100644
--- a/gas/testsuite/gas/i386/x86-64-opcode.d
+++ b/gas/testsuite/gas/i386/x86-64-opcode.d
@@ -16,22 +16,16 @@ Disassembly of section .text:
[ ]*[0-9a-f]+:[ ]+cf[ ]+iret[ ]*(#.*)*
[ ]*[0-9a-f]+:[ ]+66 cf[ ]+iretw[ ]*(#.*)*
[ ]*[0-9a-f]+:[ ]+48 cf[ ]+iretq[ ]*(#.*)*
-[ ]*[0-9a-f]+:[ ]+41 8c 08[ ]+movl?[ ]+%cs,\(%r8\)[ ]*(#.*)*
-[ ]*[0-9a-f]+:[ ]+8c 08[ ]+movl?[ ]+%cs,\(%rax\)[ ]*(#.*)*
-[ ]*[0-9a-f]+:[ ]+41 8c 10[ ]+movl?[ ]+%ss,\(%r8\)[ ]*(#.*)*
-[ ]*[0-9a-f]+:[ ]+8c 10[ ]+movl?[ ]+%ss,\(%rax\)[ ]*(#.*)*
-[ ]*[0-9a-f]+:[ ]+41 8c 20[ ]+movl?[ ]+%fs,\(%r8\)[ ]*(#.*)*
-[ ]*[0-9a-f]+:[ ]+8c 20[ ]+movl?[ ]+%fs,\(%rax\)[ ]*(#.*)*
-[ ]*[0-9a-f]+:[ ]+41 8c 08[ ]+movl?[ ]+%cs,\(%r8\)[ ]*(#.*)*
-[ ]*[0-9a-f]+:[ ]+8c 08[ ]+movl?[ ]+%cs,\(%rax\)[ ]*(#.*)*
-[ ]*[0-9a-f]+:[ ]+41 8c 10[ ]+movl?[ ]+%ss,\(%r8\)[ ]*(#.*)*
-[ ]*[0-9a-f]+:[ ]+8c 10[ ]+movl?[ ]+%ss,\(%rax\)[ ]*(#.*)*
-[ ]*[0-9a-f]+:[ ]+41 8c 20[ ]+movl?[ ]+%fs,\(%r8\)[ ]*(#.*)*
-[ ]*[0-9a-f]+:[ ]+8c 20[ ]+movl?[ ]+%fs,\(%rax\)[ ]*(#.*)*
-[ ]*[0-9a-f]+:[ ]+41 8e 10[ ]+movl?[ ]+\(%r8\),%ss[ ]*(#.*)*
-[ ]*[0-9a-f]+:[ ]+8e 10[ ]+movl?[ ]+\(%rax\),%ss[ ]*(#.*)*
-[ ]*[0-9a-f]+:[ ]+41 8e 20[ ]+movl?[ ]+\(%r8\),%fs[ ]*(#.*)*
-[ ]*[0-9a-f]+:[ ]+8e 20[ ]+movl?[ ]+\(%rax\),%fs[ ]*(#.*)*
+[ ]*[0-9a-f]+:[ ]+41 8c 08[ ]+movw?[ ]+%cs,\(%r8\)[ ]*(#.*)*
+[ ]*[0-9a-f]+:[ ]+8c 08[ ]+movw?[ ]+%cs,\(%rax\)[ ]*(#.*)*
+[ ]*[0-9a-f]+:[ ]+41 8c 10[ ]+movw?[ ]+%ss,\(%r8\)[ ]*(#.*)*
+[ ]*[0-9a-f]+:[ ]+8c 10[ ]+movw?[ ]+%ss,\(%rax\)[ ]*(#.*)*
+[ ]*[0-9a-f]+:[ ]+41 8c 20[ ]+movw?[ ]+%fs,\(%r8\)[ ]*(#.*)*
+[ ]*[0-9a-f]+:[ ]+8c 20[ ]+movw?[ ]+%fs,\(%rax\)[ ]*(#.*)*
+[ ]*[0-9a-f]+:[ ]+41 8e 10[ ]+movw?[ ]+\(%r8\),%ss[ ]*(#.*)*
+[ ]*[0-9a-f]+:[ ]+8e 10[ ]+movw?[ ]+\(%rax\),%ss[ ]*(#.*)*
+[ ]*[0-9a-f]+:[ ]+41 8e 20[ ]+movw?[ ]+\(%r8\),%fs[ ]*(#.*)*
+[ ]*[0-9a-f]+:[ ]+8e 20[ ]+movw?[ ]+\(%rax\),%fs[ ]*(#.*)*
[ ]*[0-9a-f]+:[ ]+41 c6 00 00[ ]+movb[ ]+\$0[x0]*,\(%r8\)[ ]*(#.*)*
[ ]*[0-9a-f]+:[ ]+c6 00 00[ ]+movb[ ]+\$0[x0]*,\(%rax\)[ ]*(#.*)*
[ ]*[0-9a-f]+:[ ]+66 41 c7 00 00 70[ ]+movw[ ]+\$0x7000,\(%r8\)[ ]*(#.*)*
@@ -274,5 +268,4 @@ Disassembly of section .text:
[ ]*[0-9a-f]+:[ ]+e7 00[ ]+out[ ]+%eax,\$0[x0]*[ ]*(#.*)*
[ ]*[0-9a-f]+:[ ]+00 00[ ]+.*
[ ]*[0-9a-f]+:[ ]+00 00[ ]+.*
-[ ]*[0-9a-f]+:[ ]+00 00[ ]+.*
[ *]...
diff --git a/gas/testsuite/gas/i386/x86-64-opcode.s b/gas/testsuite/gas/i386/x86-64-opcode.s
index 839a2c3b63..8b132b3904 100644
--- a/gas/testsuite/gas/i386/x86-64-opcode.s
+++ b/gas/testsuite/gas/i386/x86-64-opcode.s
@@ -20,22 +20,16 @@
# CMP
# MOV
- MOVw %cs,(%r8) # 66 -- -- 41 8C 08 ; REX to access upper reg. O16 for 16-bit operand size
- MOVw %cs,(%rax) # 66 -- -- -- 8C 08 ; O16 for 16-bit operand size
- MOVw %ss,(%r8) # 66 -- -- 41 8C 10 ; REX to access upper reg. O16 for 16-bit operand size
- MOVw %ss,(%rax) # 66 -- -- -- 8C 10 ; O16 for 16-bit operand size
- MOVw %fs,(%r8) # 66 -- -- 41 8C 20 ; REX to access upper reg. O16 for 16-bit operand size
- MOVw %fs,(%rax) # 66 -- -- -- 8C 20 ; O16 for 16-bit operand size
- MOVl %cs,(%r8) # -- -- -- 41 8C 08 ; REX to access upper reg.
- MOVl %cs,(%rax) # -- -- -- -- 8C 08
- MOVl %ss,(%r8) # -- -- -- 41 8C 10 ; REX to access upper reg.
- MOVl %ss,(%rax) # -- -- -- -- 8C 10
- MOVl %fs,(%r8) # -- -- -- 41 8C 20 ; REX to access upper reg.
- MOVl %fs,(%rax) # -- -- -- -- 8C 20
- MOVl (%r8),%ss # -- -- -- 41 8E 10 ; REX to access upper reg.
- MOVl (%rax),%ss # -- -- -- -- 8E 10
- MOVl (%r8),%fs # -- -- -- 41 8E 20 ; REX to access upper reg.
- MOVl (%rax),%fs # -- -- -- -- 8E 20
+ MOVw %cs,(%r8) # -- -- -- 41 8C 08 ; REX to access upper reg.
+ MOVw %cs,(%rax) # -- -- -- -- 8C 08
+ MOVw %ss,(%r8) # -- -- -- 41 8C 10 ; REX to access upper reg.
+ MOVw %ss,(%rax) # -- -- -- -- 8C 10
+ MOVw %fs,(%r8) # -- -- -- 41 8C 20 ; REX to access upper reg.
+ MOVw %fs,(%rax) # -- -- -- -- 8C 20
+ MOVw (%r8),%ss # -- -- -- 41 8E 10 ; REX to access upper reg.
+ MOVw (%rax),%ss # -- -- -- -- 8E 10
+ MOVw (%r8),%fs # -- -- -- 41 8E 20 ; REX to access upper reg.
+ MOVw (%rax),%fs # -- -- -- -- 8E 20
MOVb $0,(%r8) # -- -- -- 41 C6 00 00 ; REX to access upper reg.
MOVb $0,(%rax) # -- -- -- -- C6 00 00
MOVw $0x7000,(%r8) # 66 -- -- 41 C7 00 00 70 ; REX to access upper reg. O16 for 16-bit operand size
diff --git a/gas/testsuite/gas/i386/x86-64-segment.l b/gas/testsuite/gas/i386/x86-64-segment.l
new file mode 100644
index 0000000000..4056fde869
--- /dev/null
+++ b/gas/testsuite/gas/i386/x86-64-segment.l
@@ -0,0 +1,12 @@
+ 1 .psize 0
+ 2 .text
+ 3 # test segment reg insns with memory operand
+ 4 0000 8C18 movw %ds,\(%rax\)
+ 5 0002 8C18 mov %ds,\(%rax\)
+ 6 0004 8E18 movw \(%rax\),%ds
+ 7 0006 8E18 mov \(%rax\),%ds
+ 8 # test segment reg insns with REX
+ 9 0008 488CD8 movq %ds,%rax
+ 10 000b 488ED8 movq %rax,%ds
+ 11 # Force a good alignment.
+ 12 000e 0000 .p2align 4,0
diff --git a/gas/testsuite/gas/i386/x86-64-segment.s b/gas/testsuite/gas/i386/x86-64-segment.s
new file mode 100644
index 0000000000..16fcd76190
--- /dev/null
+++ b/gas/testsuite/gas/i386/x86-64-segment.s
@@ -0,0 +1,12 @@
+.psize 0
+.text
+# test segment reg insns with memory operand
+ movw %ds,(%rax)
+ mov %ds,(%rax)
+ movw (%rax),%ds
+ mov (%rax),%ds
+# test segment reg insns with REX
+ movq %ds,%rax
+ movq %rax,%ds
+ # Force a good alignment.
+ .p2align 4,0
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