Ignore 0x66 prefix for call/jmp/jcc in 64-bit mode

The operand size prefix (0x66) is ignored for 32-bit PC-relative call,
jmp and jcc in 64-bit mode.

gas/testsuite/

	PR binutis/18386
	* gas/i386/i386.exp: Run x86-64-jump.
	* gas/i386/x86-64-branch.d: Updated.
	* gas/i386/ilp32/x86-64-branch.d: Likewise.
	* gas/i386/x86-64-branch.s: Add tests for the operand size prefix
	with call, jmp and jb.
	* gas/i386/x86-64-jump.d: New file.
	* gas/i386/x86-64-jump.s: Likewise.

ld/testsuite/

	PR binutis/18386
	* ld-x86-64/tlsgdesc.dd: Updated.
	* ld-x86-64/tlspic.dd: Likewise.

opcodes/

	PR binutis/18386
	* i386-dis.c (X86_64_E8): New.
	(X86_64_E9): Likewise.
	Update comments on 'T', 'U', 'V'.  Add comments for '^'.
	(dis386): Replace callT/jmpT with X86_64_E8/X86_64_E9.
	(x86_64_table): Add X86_64_E8 and X86_64_E9.
	(mod_table): Replace {T|} with ^ on Jcall/Jmp.
	(putop): Handle '^'.
	(OP_J): Ignore the operand size prefix in 64-bit.  Don't check
	REX_W.

9 files changed, 151 insertions, 22 deletions

diff --git a/gas/testsuite/gas/i386/i386.exp b/gas/testsuite/gas/i386/i386.exp
index bedd84c..9492e80 100644
--- a/gas/testsuite/gas/i386/i386.exp
+++ b/gas/testsuite/gas/i386/i386.exp
@@ -754,6 +754,8 @@ if [expr ([istarget "i*86-*-*"] || [istarget "x86_64-*-*"]) && [gas_64_check]] t
 
 	run_dump_test "x86-64-relax-2"
 	run_dump_test "x86-64-relax-3"
+
+	run_dump_test "x86-64-jump"
     }
 
     set ASFLAGS "$old_ASFLAGS"
diff --git a/gas/testsuite/gas/i386/ilp32/x86-64-branch.d b/gas/testsuite/gas/i386/ilp32/x86-64-branch.d
index 9118db1..9fcb8ca 100644
--- a/gas/testsuite/gas/i386/ilp32/x86-64-branch.d
+++ b/gas/testsuite/gas/i386/ilp32/x86-64-branch.d
@@ -1,7 +1,7 @@
 #source: ../x86-64-branch.s
 #as: -J
 #objdump: -drw
-#name: x86-64 (ILP32) indirect branch
+#name: x86-64 (ILP32) branch
 
 .*: +file format .*
 
@@ -20,6 +20,9 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	66 ff 20             	jmpw   \*\(%rax\)
 [ 	]*[a-f0-9]+:	e8 00 00 00 00       	callq  0x1f	1b: R_X86_64_PC32	\*ABS\*\+0x10003c
 [ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmpq   0x24	20: R_X86_64_PC32	\*ABS\*\+0x10003c
+[ 	]*[a-f0-9]+:	66 e8 00 00 00 00    	data16 callq 0x2a	26: R_X86_64_PC32	foo-0x4
+[ 	]*[a-f0-9]+:	66 e9 00 00 00 00    	data16 jmpq 0x30	2c: R_X86_64_PC32	foo-0x4
+[ 	]*[a-f0-9]+:	66 0f 82 00 00 00 00 	data16 jb 0x37	33: R_X86_64_PC32	foo-0x4
 [ 	]*[a-f0-9]+:	ff d0                	callq  \*%rax
 [ 	]*[a-f0-9]+:	ff d0                	callq  \*%rax
 [ 	]*[a-f0-9]+:	66 ff d0             	callw  \*%ax
@@ -30,6 +33,6 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	66 ff e0             	jmpw   \*%ax
 [ 	]*[a-f0-9]+:	66 ff e0             	jmpw   \*%ax
 [ 	]*[a-f0-9]+:	66 ff 20             	jmpw   \*\(%rax\)
-[ 	]*[a-f0-9]+:	e8 00 00 00 00       	callq  0x43	3f: R_X86_64_PC32	\*ABS\*\+0x10003c
-[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmpq   0x48	44: R_X86_64_PC32	\*ABS\*\+0x10003c
+[ 	]*[a-f0-9]+:	e8 00 00 00 00       	callq  0x56	52: R_X86_64_PC32	\*ABS\*\+0x10003c
+[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmpq   0x5b	57: R_X86_64_PC32	\*ABS\*\+0x10003c
 #pass
diff --git a/gas/testsuite/gas/i386/x86-64-branch.d b/gas/testsuite/gas/i386/x86-64-branch.d
index fee2099..49e17a4 100644
--- a/gas/testsuite/gas/i386/x86-64-branch.d
+++ b/gas/testsuite/gas/i386/x86-64-branch.d
@@ -1,6 +1,6 @@
 #as: -J
 #objdump: -dw
-#name: x86-64 indirect branch
+#name: x86-64 branch
 
 .*: +file format .*
 
@@ -19,6 +19,9 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	66 ff 20             	jmpw   \*\(%rax\)
 [ 	]*[a-f0-9]+:	e8 (00|5b) 00 (00|10) 00       	callq  (0x1f|10007a <.text\+0x10007a>)
 [ 	]*[a-f0-9]+:	e9 (00|60) 00 (00|10) 00       	jmpq   (0x24|100084 <.text\+0x100084>)
+[ 	]*[a-f0-9]+:	66 e8 00 00 00 00    	data16 callq (0x2a|2a <.text\+0x2a>)
+[ 	]*[a-f0-9]+:	66 e9 00 00 00 00    	data16 jmpq (0x30|30 <.text\+0x30>)
+[ 	]*[a-f0-9]+:	66 0f 82 00 00 00 00 	data16 jb (0x37|37 <.text\+0x37>)
 [ 	]*[a-f0-9]+:	ff d0                	callq  \*%rax
 [ 	]*[a-f0-9]+:	ff d0                	callq  \*%rax
 [ 	]*[a-f0-9]+:	66 ff d0             	callw  \*%ax
@@ -29,6 +32,6 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	66 ff e0             	jmpw   \*%ax
 [ 	]*[a-f0-9]+:	66 ff e0             	jmpw   \*%ax
 [ 	]*[a-f0-9]+:	66 ff 20             	jmpw   \*\(%rax\)
-[ 	]*[a-f0-9]+:	e8 (00|7f) 00 (00|10) 00       	callq  (0x43|1000c2 <.text\+0x1000c2>)
-[ 	]*[a-f0-9]+:	e9 (00|84) 00 (00|10) 00       	jmpq   (0x48|1000cc <.text\+0x1000cc>)
+[ 	]*[a-f0-9]+:	e8 (00|92) 00 (00|10) 00       	callq  (0x56|1000e8 <.text\+0x1000e8>)
+[ 	]*[a-f0-9]+:	e9 (00|97) 00 (00|10) 00       	jmpq   (0x5b|1000f2 <.text\+0x1000f2>)
 #pass
diff --git a/gas/testsuite/gas/i386/x86-64-branch.s b/gas/testsuite/gas/i386/x86-64-branch.s
index 4c1861f..9451d76 100644
--- a/gas/testsuite/gas/i386/x86-64-branch.s
+++ b/gas/testsuite/gas/i386/x86-64-branch.s
@@ -12,6 +12,13 @@
 	call	0x100040
 	jmp	0x100040
 
+	.byte 0x66
+	call	foo
+	.byte 0x66
+	jmp	foo
+	.byte 0x66
+	jb	foo
+
 	.intel_syntax noprefix
 	call	rax
 	callq	rax
diff --git a/gas/testsuite/gas/i386/x86-64-jump.d b/gas/testsuite/gas/i386/x86-64-jump.d
new file mode 100644
index 0000000..edb34e6
--- /dev/null
+++ b/gas/testsuite/gas/i386/x86-64-jump.d
@@ -0,0 +1,43 @@
+#objdump: -drw
+#name: x86-64 jump
+
+.*: +file format .*
+
+
+Disassembly of section .text:
+
+0+ <.text>:
+[ 	]*[a-f0-9]+:	eb fe                	jmp    (0x0|0 <.text>)
+[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmpq   0x7	3: R_X86_64_PC32	xxx-0x4
+[ 	]*[a-f0-9]+:	ff 24 25 00 00 00 00 	jmpq   \*0x0	a: R_X86_64_32S	xxx
+[ 	]*[a-f0-9]+:	ff e7                	jmpq   \*%rdi
+[ 	]*[a-f0-9]+:	ff 27                	jmpq   \*\(%rdi\)
+[ 	]*[a-f0-9]+:	ff 2c bd 00 00 00 00 	ljmp   \*0x0\(,%rdi,4\)	15: R_X86_64_32S	xxx
+[ 	]*[a-f0-9]+:	66 ff 2c bd 00 00 00 00 	ljmpw  \*0x0\(,%rdi,4\)	1d: R_X86_64_32S	xxx
+[ 	]*[a-f0-9]+:	ff 2c 25 00 00 00 00 	ljmp   \*0x0	24: R_X86_64_32S	xxx
+[ 	]*[a-f0-9]+:	66 ff 2c 25 00 00 00 00 	ljmpw  \*0x0	2c: R_X86_64_32S	xxx
+[ 	]*[a-f0-9]+:	e8 cb ff ff ff       	callq  0x0
+[ 	]*[a-f0-9]+:	e8 00 00 00 00       	callq  0x3a	36: R_X86_64_PC32	xxx-0x4
+[ 	]*[a-f0-9]+:	ff 14 25 00 00 00 00 	callq  \*0x0	3d: R_X86_64_32S	xxx
+[ 	]*[a-f0-9]+:	ff d7                	callq  \*%rdi
+[ 	]*[a-f0-9]+:	ff 17                	callq  \*\(%rdi\)
+[ 	]*[a-f0-9]+:	ff 1c bd 00 00 00 00 	lcall  \*0x0\(,%rdi,4\)	48: R_X86_64_32S	xxx
+[ 	]*[a-f0-9]+:	66 ff 1c bd 00 00 00 00 	lcallw \*0x0\(,%rdi,4\)	50: R_X86_64_32S	xxx
+[ 	]*[a-f0-9]+:	ff 1c 25 00 00 00 00 	lcall  \*0x0	57: R_X86_64_32S	xxx
+[ 	]*[a-f0-9]+:	66 ff 1c 25 00 00 00 00 	lcallw \*0x0	5f: R_X86_64_32S	xxx
+[ 	]*[a-f0-9]+:	67 e3 00             	jecxz  0x66	65: R_X86_64_PC8	\$\+0x2
+[ 	]*[a-f0-9]+:	90                   	nop
+[ 	]*[a-f0-9]+:	e3 00                	jrcxz  0x69	68: R_X86_64_PC8	\$\+0x1
+[ 	]*[a-f0-9]+:	90                   	nop
+[ 	]*[a-f0-9]+:	66 ff 13             	callw  \*\(%rbx\)
+[ 	]*[a-f0-9]+:	ff 1b                	lcall  \*\(%rbx\)
+[ 	]*[a-f0-9]+:	66 ff 23             	jmpw   \*\(%rbx\)
+[ 	]*[a-f0-9]+:	ff 2b                	ljmp   \*\(%rbx\)
+[ 	]*[a-f0-9]+:	eb 00                	jmp    0x76
+[ 	]*[a-f0-9]+:	90                   	nop
+[ 	]*[a-f0-9]+:	67 e3 00             	jecxz  0x7a
+[ 	]*[a-f0-9]+:	90                   	nop
+[ 	]*[a-f0-9]+:	e3 00                	jrcxz  0x7d
+[ 	]*[a-f0-9]+:	90                   	nop
+[ 	]*[a-f0-9]+:	eb 00                	jmp    0x80
+#pass
diff --git a/gas/testsuite/gas/i386/x86-64-jump.s b/gas/testsuite/gas/i386/x86-64-jump.s
new file mode 100644
index 0000000..96ae66e
--- /dev/null
+++ b/gas/testsuite/gas/i386/x86-64-jump.s
@@ -0,0 +1,41 @@
+.psize 0
+.text
+.extern xxx
+
+1:	jmp	1b
+	jmp	xxx
+	jmp	*xxx
+	jmp	*%rdi
+	jmp	*(%rdi)
+	ljmp	*xxx(,%rdi,4)
+	ljmpw	*xxx(,%rdi,4)
+	ljmp	*xxx
+	ljmpw	*xxx
+
+	call	1b
+	call	xxx
+	call	*xxx
+	call	*%rdi
+	call	*(%rdi)
+	lcall	*xxx(,%rdi,4)
+	lcallw	*xxx(,%rdi,4)
+	lcall	*xxx
+	lcallw	*xxx
+
+	jecxz	3+$
+	nop
+	jrcxz	2+$
+	nop
+
+	.intel_syntax noprefix
+	call	word ptr [rbx]
+	call	fword ptr [rbx]
+	jmp	word ptr [rbx]
+	jmp	fword ptr [rbx]
+	jmp	$+2
+	nop
+	jecxz	3+$
+	nop
+	jrcxz	2+$
+	nop
+	jmp	.+2
diff --git a/ld/testsuite/ld-x86-64/tlsgdesc.dd b/ld/testsuite/ld-x86-64/tlsgdesc.dd
index 85b219f..88eb953 100644
--- a/ld/testsuite/ld-x86-64/tlsgdesc.dd
+++ b/ld/testsuite/ld-x86-64/tlsgdesc.dd
@@ -41,7 +41,7 @@ Disassembly of section .text:
  +[0-9a-f]+:	66 48 8d 3d ([0-9a-f]{2} ){3}[ 	]+data16 lea 0x[0-9a-f]+\(%rip\),%rdi +# [0-9a-f]+ <_DYNAMIC\+0x180>
  +[0-9a-f]+:	[0-9a-f]{2} *
 #				-> R_X86_64_DTPMOD64	sG1
- +[0-9a-f]+:	66 66 48 e8 ([0-9a-f]{2} ){3}[ 	]+data16 data16 callq [0-9a-f]+ <__tls_get_addr@plt>
+ +[0-9a-f]+:	66 66 48 e8 ([0-9a-f]{2} ){3}[ 	]+data16 data16 rex.W callq [0-9a-f]+ <__tls_get_addr@plt>
  +[0-9a-f]+:	[0-9a-f]{2} *
 #				-> R_X86_64_JUMP_SLOT	__tls_get_addr
  +[0-9a-f]+:	90[ 	]+nop *
@@ -66,7 +66,7 @@ Disassembly of section .text:
  +[0-9a-f]+:	66 48 8d 3d ([0-9a-f]{2} ){3}[ 	]+data16 lea 0x[0-9a-f]+\(%rip\),%rdi +# [0-9a-f]+ <_DYNAMIC\+0x160>
  +[0-9a-f]+:	[0-9a-f]{2} *
 #				-> R_X86_64_DTPMOD64	sG2
- +[0-9a-f]+:	66 66 48 e8 ([0-9a-f]{2} ){3}[ 	]+data16 data16 callq [0-9a-f]+ <__tls_get_addr@plt>
+ +[0-9a-f]+:	66 66 48 e8 ([0-9a-f]{2} ){3}[ 	]+data16 data16 rex.W callq [0-9a-f]+ <__tls_get_addr@plt>
  +[0-9a-f]+:	[0-9a-f]{2} *
 #				-> R_X86_64_JUMP_SLOT	__tls_get_addr
  +[0-9a-f]+:	90[ 	]+nop *
diff --git a/ld/testsuite/ld-x86-64/tlspic.dd b/ld/testsuite/ld-x86-64/tlspic.dd
index 26d83e9..aab8181 100644
--- a/ld/testsuite/ld-x86-64/tlspic.dd
+++ b/ld/testsuite/ld-x86-64/tlspic.dd
@@ -20,7 +20,7 @@ Disassembly of section .text:
  +1008:	66 48 8d 3d ([0-9a-f]{2} ){3}[ 	]+data16 lea 0x[0-9a-f]+\(%rip\),%rdi +# [0-9a-f]+ <_DYNAMIC\+0x180>
  +100f:	[0-9a-f 	]+
 #				-> R_X86_64_DTPMOD64	sg1
- +1010:	66 66 48 e8 [0-9a-f 	]+data16 data16 callq [0-9a-f]+ <.*>
+ +1010:	66 66 48 e8 [0-9a-f 	]+data16 data16 rex.W callq [0-9a-f]+ <.*>
 #				-> R_X86_64_JUMP_SLOT	__tls_get_addr
  +1017:	[0-9a-f 	]+
  +1018:	90[ 	]+nop *
@@ -40,7 +40,7 @@ Disassembly of section .text:
  +1030:	66 48 8d 3d ([0-9a-f]{2} ){3}[ 	]+data16 lea 0x[0-9a-f]+\(%rip\),%rdi +# [0-9a-f]+ <_DYNAMIC\+0x130>
  +1037:	[0-9a-f 	]+
 #				-> R_X86_64_DTPMOD64	[0 0x2000000000000000]
- +1038:	66 66 48 e8 [0-9a-f 	]+data16 data16 callq [0-9a-f]+ <.*>
+ +1038:	66 66 48 e8 [0-9a-f 	]+data16 data16 rex.W callq [0-9a-f]+ <.*>
 #				-> R_X86_64_JUMP_SLOT	__tls_get_addr
  +103f:	[0-9a-f 	]+
  +1040:	90[ 	]+nop *
@@ -60,7 +60,7 @@ Disassembly of section .text:
  +1058:	66 48 8d 3d ([0-9a-f]{2} ){3}[ 	]+data16 lea 0x[0-9a-f]+\(%rip\),%rdi +# [0-9a-f]+ <_DYNAMIC\+0x1a8>
  +105f:	[0-9a-f 	]+
 #				-> R_X86_64_DTPMOD64	[0 0x4000000000000000]
- +1060:	66 66 48 e8 [0-9a-f 	]+data16 data16 callq [0-9a-f]+ <.*>
+ +1060:	66 66 48 e8 [0-9a-f 	]+data16 data16 rex.W callq [0-9a-f]+ <.*>
 #				-> R_X86_64_JUMP_SLOT	__tls_get_addr
  +1067:	[0-9a-f 	]+
  +1068:	90[ 	]+nop *
@@ -80,7 +80,7 @@ Disassembly of section .text:
  +1080:	66 48 8d 3d ([0-9a-f]{2} ){3}[ 	]+data16 lea 0x[0-9a-f]+\(%rip\),%rdi +# [0-9a-f]+ <_DYNAMIC\+0x160>
  +1087:	[0-9a-f 	]+
 #				-> R_X86_64_DTPMOD64	[0 0x6000000000000000]
- +1088:	66 66 48 e8 [0-9a-f 	]+data16 data16 callq [0-9a-f]+ <.*>
+ +1088:	66 66 48 e8 [0-9a-f 	]+data16 data16 rex.W callq [0-9a-f]+ <.*>
 #				-> R_X86_64_JUMP_SLOT	__tls_get_addr
  +108f:	[0-9a-f 	]+
  +1090:	90[ 	]+nop *
diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c
index 88c1758..941f699 100644
--- a/opcodes/i386-dis.c
+++ b/opcodes/i386-dis.c
@@ -1632,6 +1632,8 @@ enum
   X86_64_CE,
   X86_64_D4,
   X86_64_D5,
+  X86_64_E8,
+  X86_64_E9,
   X86_64_EA,
   X86_64_0F01_REG_0,
   X86_64_0F01_REG_1,
@@ -2401,9 +2403,12 @@ struct dis386 {
 	  is true
    'R' => print 'w', 'l' or 'q' ('d' for 'l' and 'e' in Intel mode)
    'S' => print 'w', 'l' or 'q' if suffix_always is true
-   'T' => print 'q' in 64bit mode and behave as 'P' otherwise
-   'U' => print 'q' in 64bit mode and behave as 'Q' otherwise
-   'V' => print 'q' in 64bit mode and behave as 'S' otherwise
+   'T' => print 'q' in 64bit mode if instruction has no operand size
+	  prefix and behave as 'P' otherwise
+   'U' => print 'q' in 64bit mode if instruction has no operand size
+	  prefix and behave as 'Q' otherwise
+   'V' => print 'q' in 64bit mode if instruction has no operand size
+	  prefix and behave as 'S' otherwise
    'W' => print 'b', 'w' or 'l' ('d' in Intel mode)
    'X' => print 's', 'd' depending on data16 prefix (for XMM)
    'Y' => 'q' if instruction has an REX 64bit overwrite prefix and
@@ -2411,6 +2416,8 @@ struct dis386 {
    'Z' => print 'q' in 64bit mode and behave as 'L' otherwise
    '!' => change condition from true to false or from false to true.
    '%' => add 1 upper case letter to the macro.
+   '^' => print 'w' or 'l' depending on operand size prefix or
+	  suffix_always is true (lcall/ljmp).
 
    2 upper case letter macros:
    "XY" => print 'x' or 'y' if suffix_always is true or no register
@@ -2697,8 +2704,8 @@ static const struct dis386 dis386[] = {
   { "outB",		{ Ib, AL }, 0 },
   { "outG",		{ Ib, zAX }, 0 },
   /* e8 */
-  { "callT",		{ Jv, BND }, 0 },
-  { "jmpT",		{ Jv, BND }, 0 },
+  { X86_64_TABLE (X86_64_E8) },
+  { X86_64_TABLE (X86_64_E9) },
   { X86_64_TABLE (X86_64_EA) },
   { "jmp",		{ Jb, BND }, 0 },
   { "inB",		{ AL, indirDX }, 0 },
@@ -6834,6 +6841,18 @@ static const struct dis386 x86_64_table[][2] = {
     { "aad", { Ib }, 0 },
   },
 
+  /* X86_64_E8 */
+  {
+    { "callP",		{ Jv, BND }, 0 },
+    { "callq",		{ Jv, BND }, 0 }
+  },
+
+  /* X86_64_E9 */
+  {
+    { "jmpP",		{ Jv, BND }, 0 },
+    { "jmpq",		{ Jv, BND }, 0 }
+  },
+
   /* X86_64_EA */
   {
     { "Jjmp{T|}", { Ap }, 0 },
@@ -11576,11 +11595,11 @@ static const struct dis386 mod_table[][2] = {
   },
   {
     /* MOD_FF_REG_3 */
-    { "Jcall{T|}", { indirEp }, 0 },
+    { "Jcall^", { indirEp }, 0 },
   },
   {
     /* MOD_FF_REG_5 */
-    { "Jjmp{T|}", { indirEp }, 0 },
+    { "Jjmp^", { indirEp }, 0 },
   },
   {
     /* MOD_0F01_REG_0 */
@@ -14177,6 +14196,18 @@ case_S:
 		*obufp++ = vex.w ? 'q': 'd';
 	    }
 	  break;
+	case '^':
+	  if (intel_syntax)
+	    break;
+	  if ((prefixes & PREFIX_DATA) || (sizeflag & SUFFIX_ALWAYS))
+	    {
+	      if (sizeflag & DFLAG)
+		*obufp++ = 'l';
+	      else
+		*obufp++ = 'w';
+	      used_prefixes |= (prefixes & PREFIX_DATA);
+	    }
+	  break;
 	}
       alt = 0;
     }
@@ -15693,8 +15724,7 @@ OP_J (int bytemode, int sizeflag)
 	disp -= 0x100;
       break;
     case v_mode:
-      USED_REX (REX_W);
-      if ((sizeflag & DFLAG) || (rex & REX_W))
+      if (address_mode == mode_64bit || (sizeflag & DFLAG))
 	disp = get32s ();
       else
 	{
@@ -15710,7 +15740,7 @@ OP_J (int bytemode, int sizeflag)
 	    segment = ((start_pc + codep - start_codep)
 		       & ~((bfd_vma) 0xffff));
 	}
-      if (!(rex & REX_W))
+      if (address_mode != mode_64bit)
 	used_prefixes |= (prefixes & PREFIX_DATA);
       break;
     default: