gas/

2007-09-20  H.J. Lu  <hongjiu.lu@intel.com>

	PR 658
	* config/tc-i386.c (SCALE1_WHEN_NO_INDEX): Removed.
	(set_allow_index_reg): New.
	(allow_index_reg): Likewise.
	(md_pseudo_table): Add "allow_index_reg" and
	"disallow_index_reg".
	(build_modrm_byte): Set i.sib.index to NO_INDEX_REGISTER for
	fake index registers.
	(i386_scale): Updated.
	(i386_index_check): Support fake index registers.
	(parse_real_register): Return NULL on eiz/riz if fake index
	registers aren't allowed.

gas/testsuite/

2007-09-20  H.J. Lu  <hongjiu.lu@intel.com>

	PR 658
	* gas/i386/i386.exp: Run sib-intel, x86-64-sib and
	x86-64-sib-intel.

	* gas/i386/nops-1-i386-i686.d: Updated.
	* gas/i386/nops-1-i386.d: Likewise.
	* gas/i386/nops-1.d: Likewise.
	* gas/i386/nops-2-i386.d: Likewise.
	* gas/i386/nops-2-merom.d: Likewise.
	* gas/i386/nops-2.d: Likewise.
	* gas/i386/nops-3-i386.d: Likewise.
	* gas/i386/nops-3.d : Likewise.
	* gas/i386/sib.d: Likewise.

	* gas/i386/sib.s: Use %eiz in testcases.

	* gas/i386/sib-intel.d: New.
	* gas/i386/x86-64-sib-intel.d: Likewise.
	* gas/i386/x86-64-sib.d: Likewise.
	* gas/i386/x86-64-sib.s: Likewise.

ld/testsuite/

2007-09-20  H.J. Lu  <hongjiu.lu@intel.com>

	PR 658
	* ld-i386/tlsbin.dd: Updated.
	* ld-i386/tlsld1.dd: Likewise.

opcodes/

2007-09-20  H.J. Lu  <hongjiu.lu@intel.com>

	PR 658
	* 386-dis.c (index64): New.
	(index32): Likewise.
	(intel_index64): Likewise.
	(intel_index32): Likewise.
	(att_index64): Likewise.
	(att_index32): Likewise.
	(print_insn): Set index64 and index32.
	(OP_E_extended): Use index64/index32 for index register for
	SIB with INDEX == 4.

	* i386-opc.h (RegEiz): New.
	(RegRiz): Likewise.

	* i386-reg.tbl: Add eiz and riz.
	* i386-tbl.h: Regenerated.

18 files changed, 249 insertions, 108 deletions

diff --git a/gas/ChangeLog b/gas/ChangeLog
index f61cc8e..a5e7991 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,18 @@
+2007-09-20  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR 658
+	* config/tc-i386.c (SCALE1_WHEN_NO_INDEX): Removed.
+	(set_allow_index_reg): New.
+	(allow_index_reg): Likewise.
+	(md_pseudo_table): Add "allow_index_reg" and
+	"disallow_index_reg".
+	(build_modrm_byte): Set i.sib.index to NO_INDEX_REGISTER for
+	fake index registers.
+	(i386_scale): Updated.
+	(i386_index_check): Support fake index registers.
+	(parse_real_register): Return NULL on eiz/riz if fake index
+	registers aren't allowed.
+
 2007-09-19  Nick Clifton  <nickc@redhat.com>
 
 	* config/tc-h8300.c (md_apply_fix): Do not abort or handle 8 byte
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c
index 17bde04..7192c66 100644
--- a/gas/config/tc-i386.c
+++ b/gas/config/tc-i386.c
@@ -43,14 +43,6 @@
 #define INFER_ADDR_PREFIX 1
 #endif
 
-#ifndef SCALE1_WHEN_NO_INDEX
-/* Specifying a scale factor besides 1 when there is no index is
-   futile.  eg. `mov (%ebx,2),%al' does exactly the same as
-   `mov (%ebx),%al'.  To slavishly follow what the programmer
-   specified, set SCALE1_WHEN_NO_INDEX to 0.  */
-#define SCALE1_WHEN_NO_INDEX 1
-#endif
-
 #ifndef DEFAULT_ARCH
 #define DEFAULT_ARCH "i386"
 #endif
@@ -66,6 +58,7 @@
 static void set_code_flag (int);
 static void set_16bit_gcc_code_flag (int);
 static void set_intel_syntax (int);
+static void set_allow_index_reg (int);
 static void set_cpu_arch (int);
 #ifdef TE_PE
 static void pe_directive_secrel (int);
@@ -294,6 +287,9 @@ static int intel_syntax = 0;
 /* 1 if register prefix % not required.  */
 static int allow_naked_reg = 0;
 
+/* 1 if fake index register, eiz/riz, is allowed .  */
+static int allow_index_reg = 0;
+
 /* Register prefix used for error message.  */
 static const char *register_prefix = "%";
 
@@ -539,6 +535,8 @@ const pseudo_typeS md_pseudo_table[] =
   {"code64", set_code_flag, CODE_64BIT},
   {"intel_syntax", set_intel_syntax, 1},
   {"att_syntax", set_intel_syntax, 0},
+  {"allow_index_reg", set_allow_index_reg, 1},
+  {"disallow_index_reg", set_allow_index_reg, 0},
 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
   {"largecomm", handle_large_common, 0},
 #else
@@ -1508,6 +1506,12 @@ set_intel_syntax (int syntax_flag)
 }
 
 static void
+set_allow_index_reg (int flag)
+{
+  allow_index_reg = flag;
+}
+
+static void
 set_cpu_arch (int dummy ATTRIBUTE_UNUSED)
 {
   SKIP_WHITESPACE ();
@@ -4517,7 +4521,11 @@ build_modrm_byte (void)
 		}
 	      else /* !i.base_reg && i.index_reg  */
 		{
-		  i.sib.index = i.index_reg->reg_num;
+		  if (i.index_reg->reg_num == RegEiz
+		      || i.index_reg->reg_num == RegRiz)
+		    i.sib.index = NO_INDEX_REGISTER;
+		  else
+		    i.sib.index = i.index_reg->reg_num;
 		  i.sib.base = NO_BASE_REGISTER;
 		  i.sib.scale = i.log2_scale_factor;
 		  i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING;
@@ -4625,16 +4633,14 @@ build_modrm_byte (void)
 		     Any base register besides %esp will not use the
 		     extra modrm byte.  */
 		  i.sib.index = NO_INDEX_REGISTER;
-#if !SCALE1_WHEN_NO_INDEX
-		  /* Another case where we force the second modrm
-		     byte.  */
-		  if (i.log2_scale_factor)
-		    i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING;
-#endif
 		}
 	      else
 		{
-		  i.sib.index = i.index_reg->reg_num;
+		  if (i.index_reg->reg_num == RegEiz
+		      || i.index_reg->reg_num == RegRiz)
+		    i.sib.index = NO_INDEX_REGISTER;
+		  else
+		    i.sib.index = i.index_reg->reg_num;
 		  i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING;
 		  if ((i.index_reg->reg_flags & RegRex) != 0)
 		    i.rex |= REX_X;
@@ -5740,9 +5746,7 @@ i386_scale (char *scale)
     {
       as_warn (_("scale factor of %d without an index register"),
 	       1 << i.log2_scale_factor);
-#if SCALE1_WHEN_NO_INDEX
       i.log2_scale_factor = 0;
-#endif
     }
   scale = input_line_pointer;
   input_line_pointer = save;
@@ -5980,8 +5984,11 @@ i386_index_check (const char *operand_string)
 	  || (i.index_reg
 	      && (!i.index_reg->reg_type.bitfield.baseindex
 		  || (i.prefix[ADDR_PREFIX] == 0
-		      && !i.index_reg->reg_type.bitfield.reg64)
+		      && i.index_reg->reg_num != RegRiz
+		      && !i.index_reg->reg_type.bitfield.reg64
+		      )
 		  || (i.prefix[ADDR_PREFIX]
+		      && i.index_reg->reg_num != RegEiz
 		      && !i.index_reg->reg_type.bitfield.reg32))))
 	ok = 0;
     }
@@ -6008,7 +6015,8 @@ i386_index_check (const char *operand_string)
 	  if ((i.base_reg
 	       && !i.base_reg->reg_type.bitfield.reg32)
 	      || (i.index_reg
-		  && (!i.index_reg->reg_type.bitfield.reg32
+		  && ((!i.index_reg->reg_type.bitfield.reg32
+		       && i.index_reg->reg_num != RegEiz)
 		      || !i.index_reg->reg_type.bitfield.baseindex)))
 	    ok = 0;
 	}
@@ -6904,6 +6912,12 @@ parse_real_register (char *reg_string, char **end_op)
 	}
     }
 
+  /* Don't allow fake index register unless allow_index_reg isn't 0. */
+  if (r != NULL
+      && !allow_index_reg
+      && (r->reg_num == RegEiz || r->reg_num == RegRiz))
+    return (const reg_entry *) NULL;
+
   if (r != NULL
       && ((r->reg_flags & (RegRex64 | RegRex))
 	  || r->reg_type.bitfield.reg64)
diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog
index 2995298..279a5d8 100644
--- a/gas/testsuite/ChangeLog
+++ b/gas/testsuite/ChangeLog
@@ -1,3 +1,26 @@
+2007-09-20  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR 658
+	* gas/i386/i386.exp: Run sib-intel, x86-64-sib and
+	x86-64-sib-intel.
+
+	* gas/i386/nops-1-i386-i686.d: Updated.
+	* gas/i386/nops-1-i386.d: Likewise.
+	* gas/i386/nops-1.d: Likewise.
+	* gas/i386/nops-2-i386.d: Likewise.
+	* gas/i386/nops-2-merom.d: Likewise.
+	* gas/i386/nops-2.d: Likewise.
+	* gas/i386/nops-3-i386.d: Likewise.
+	* gas/i386/nops-3.d : Likewise.
+	* gas/i386/sib.d: Likewise.
+
+	* gas/i386/sib.s: Use %eiz in testcases.
+
+	* gas/i386/sib-intel.d: New.
+	* gas/i386/x86-64-sib-intel.d: Likewise.
+	* gas/i386/x86-64-sib.d: Likewise.
+	* gas/i386/x86-64-sib.s: Likewise.
+
 2007-09-19  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* gas/i386/intelok.s: Add tests for memory without base.
diff --git a/gas/testsuite/gas/i386/i386.exp b/gas/testsuite/gas/i386/i386.exp
index 38bed74..9807432 100644
--- a/gas/testsuite/gas/i386/i386.exp
+++ b/gas/testsuite/gas/i386/i386.exp
@@ -46,6 +46,7 @@ if [expr ([istarget "i*86-*-*"] ||  [istarget "x86_64-*-*"]) && [gas_32_check]]
     run_dump_test "sub"
     run_dump_test "prescott"
     run_dump_test "sib"
+    run_dump_test "sib-intel"
     run_dump_test "vmx"
     run_dump_test "suffix"
     run_dump_test "immed32"
@@ -196,6 +197,8 @@ if [expr ([istarget "i*86-*-*"] || [istarget "x86_64-*-*"]) && [gas_64_check]] t
     run_dump_test "x86-64-mem-intel"
     run_dump_test "x86-64-reg"
     run_dump_test "x86-64-reg-intel"
+    run_dump_test "x86-64-sib"
+    run_dump_test "x86-64-sib-intel"
 
     if { ![istarget "*-*-aix*"]
       && ![istarget "*-*-beos*"]
diff --git a/gas/testsuite/gas/i386/nops-1-i386-i686.d b/gas/testsuite/gas/i386/nops-1-i386-i686.d
index 0112662..7b0cd47 100644
--- a/gas/testsuite/gas/i386/nops-1-i386-i686.d
+++ b/gas/testsuite/gas/i386/nops-1-i386-i686.d
@@ -27,15 +27,15 @@ Disassembly of section .text:
 0+10 <nop14>:
 [	 ]*10:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*11:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*12:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*19:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*12:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
+[	 ]*19:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+20 <nop13>:
 [	 ]*20:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*21:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*22:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*23:[	 ]+8d b6 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*29:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*29:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+30 <nop12>:
 [	 ]*30:[	 ]+90[	 ]+nop[ 	]*
@@ -51,8 +51,8 @@ Disassembly of section .text:
 [	 ]*42:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*43:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*44:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*45:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*49:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*45:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
+[	 ]*49:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+50 <nop10>:
 [	 ]*50:[	 ]+90[	 ]+nop[ 	]*
@@ -62,7 +62,7 @@ Disassembly of section .text:
 [	 ]*54:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*55:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*56:[	 ]+8d 76 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*59:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*59:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+60 <nop9>:
 [	 ]*60:[	 ]+90[	 ]+nop[ 	]*
@@ -73,7 +73,7 @@ Disassembly of section .text:
 [	 ]*65:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*66:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*67:[	 ]+89 f6[	 ]+mov[ 	]+%esi,%esi
-[	 ]*69:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*69:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+70 <nop8>:
 [	 ]*70:[	 ]+90[	 ]+nop[ 	]*
@@ -85,7 +85,7 @@ Disassembly of section .text:
 [	 ]*76:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*77:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*78:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*79:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*79:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+80 <nop7>:
 [	 ]*80:[	 ]+90[	 ]+nop[ 	]*
@@ -97,7 +97,7 @@ Disassembly of section .text:
 [	 ]*86:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*87:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*88:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*89:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*89:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+90 <nop6>:
 [	 ]*90:[	 ]+90[	 ]+nop[ 	]*
@@ -125,7 +125,7 @@ Disassembly of section .text:
 [	 ]*a9:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*aa:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*ab:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*ac:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*ac:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+b0 <nop4>:
 [	 ]*b0:[	 ]+90[	 ]+nop[ 	]*
@@ -140,7 +140,7 @@ Disassembly of section .text:
 [	 ]*b9:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*ba:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*bb:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*bc:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*bc:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+c0 <nop3>:
 [	 ]*c0:[	 ]+90[	 ]+nop[ 	]*
diff --git a/gas/testsuite/gas/i386/nops-1-i386.d b/gas/testsuite/gas/i386/nops-1-i386.d
index a3432f0..f9e1541 100644
--- a/gas/testsuite/gas/i386/nops-1-i386.d
+++ b/gas/testsuite/gas/i386/nops-1-i386.d
@@ -27,15 +27,15 @@ Disassembly of section .text:
 0+10 <nop14>:
 [	 ]*10:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*11:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*12:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*19:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*12:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
+[	 ]*19:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+20 <nop13>:
 [	 ]*20:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*21:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*22:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*23:[	 ]+8d b6 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*29:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*29:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+30 <nop12>:
 [	 ]*30:[	 ]+90[	 ]+nop[ 	]*
@@ -51,8 +51,8 @@ Disassembly of section .text:
 [	 ]*42:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*43:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*44:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*45:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*49:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*45:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
+[	 ]*49:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+50 <nop10>:
 [	 ]*50:[	 ]+90[	 ]+nop[ 	]*
@@ -62,7 +62,7 @@ Disassembly of section .text:
 [	 ]*54:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*55:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*56:[	 ]+8d 76 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*59:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*59:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+60 <nop9>:
 [	 ]*60:[	 ]+90[	 ]+nop[ 	]*
@@ -73,7 +73,7 @@ Disassembly of section .text:
 [	 ]*65:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*66:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*67:[	 ]+89 f6[	 ]+mov[ 	]+%esi,%esi
-[	 ]*69:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*69:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+70 <nop8>:
 [	 ]*70:[	 ]+90[	 ]+nop[ 	]*
@@ -85,7 +85,7 @@ Disassembly of section .text:
 [	 ]*76:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*77:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*78:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*79:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*79:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+80 <nop7>:
 [	 ]*80:[	 ]+90[	 ]+nop[ 	]*
@@ -97,7 +97,7 @@ Disassembly of section .text:
 [	 ]*86:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*87:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*88:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*89:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*89:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+90 <nop6>:
 [	 ]*90:[	 ]+90[	 ]+nop[ 	]*
@@ -125,7 +125,7 @@ Disassembly of section .text:
 [	 ]*a9:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*aa:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*ab:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*ac:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*ac:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+b0 <nop4>:
 [	 ]*b0:[	 ]+90[	 ]+nop[ 	]*
@@ -140,7 +140,7 @@ Disassembly of section .text:
 [	 ]*b9:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*ba:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*bb:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*bc:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*bc:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+c0 <nop3>:
 [	 ]*c0:[	 ]+90[	 ]+nop[ 	]*
diff --git a/gas/testsuite/gas/i386/nops-1.d b/gas/testsuite/gas/i386/nops-1.d
index 4e81e95..010f490 100644
--- a/gas/testsuite/gas/i386/nops-1.d
+++ b/gas/testsuite/gas/i386/nops-1.d
@@ -26,15 +26,15 @@ Disassembly of section .text:
 0+10 <nop14>:
 [	 ]*10:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*11:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*12:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*19:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*12:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
+[	 ]*19:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+20 <nop13>:
 [	 ]*20:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*21:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*22:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*23:[	 ]+8d b6 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*29:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*29:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+30 <nop12>:
 [	 ]*30:[	 ]+90[	 ]+nop[ 	]*
@@ -50,8 +50,8 @@ Disassembly of section .text:
 [	 ]*42:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*43:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*44:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*45:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*49:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*45:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
+[	 ]*49:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+50 <nop10>:
 [	 ]*50:[	 ]+90[	 ]+nop[ 	]*
@@ -61,7 +61,7 @@ Disassembly of section .text:
 [	 ]*54:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*55:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*56:[	 ]+8d 76 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*59:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*59:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+60 <nop9>:
 [	 ]*60:[	 ]+90[	 ]+nop[ 	]*
@@ -72,7 +72,7 @@ Disassembly of section .text:
 [	 ]*65:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*66:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*67:[	 ]+89 f6[	 ]+mov[ 	]+%esi,%esi
-[	 ]*69:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*69:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+70 <nop8>:
 [	 ]*70:[	 ]+90[	 ]+nop[ 	]*
@@ -84,7 +84,7 @@ Disassembly of section .text:
 [	 ]*76:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*77:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*78:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*79:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*79:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+80 <nop7>:
 [	 ]*80:[	 ]+90[	 ]+nop[ 	]*
@@ -96,7 +96,7 @@ Disassembly of section .text:
 [	 ]*86:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*87:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*88:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*89:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*89:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+90 <nop6>:
 [	 ]*90:[	 ]+90[	 ]+nop[ 	]*
@@ -124,7 +124,7 @@ Disassembly of section .text:
 [	 ]*a9:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*aa:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*ab:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*ac:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*ac:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+b0 <nop4>:
 [	 ]*b0:[	 ]+90[	 ]+nop[ 	]*
@@ -139,7 +139,7 @@ Disassembly of section .text:
 [	 ]*b9:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*ba:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*bb:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*bc:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*bc:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+c0 <nop3>:
 [	 ]*c0:[	 ]+90[	 ]+nop[ 	]*
diff --git a/gas/testsuite/gas/i386/nops-2-i386.d b/gas/testsuite/gas/i386/nops-2-i386.d
index d910653..57f8dda 100644
--- a/gas/testsuite/gas/i386/nops-2-i386.d
+++ b/gas/testsuite/gas/i386/nops-2-i386.d
@@ -10,7 +10,7 @@ Disassembly of section .text:
 0+ <nop>:
 [	 ]*0:[	 ]+0f 44 c0[	 ]+cmove[ 	]+%eax,%eax
 [	 ]*3:[	 ]+8d b6 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*9:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*9:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+10 <nop15>:
 [	 ]*10:[	 ]+90[	 ]+nop[ 	]*
@@ -32,15 +32,15 @@ Disassembly of section .text:
 0+20 <nop14>:
 [	 ]*20:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*21:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*22:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*29:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*22:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
+[	 ]*29:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+30 <nop13>:
 [	 ]*30:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*31:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*32:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*33:[	 ]+8d b6 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*39:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*39:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+40 <nop12>:
 [	 ]*40:[	 ]+90[	 ]+nop[ 	]*
@@ -56,8 +56,8 @@ Disassembly of section .text:
 [	 ]*52:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*53:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*54:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*55:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*59:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*55:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
+[	 ]*59:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+60 <nop10>:
 [	 ]*60:[	 ]+90[	 ]+nop[ 	]*
@@ -67,7 +67,7 @@ Disassembly of section .text:
 [	 ]*64:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*65:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*66:[	 ]+8d 76 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*69:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*69:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+70 <nop9>:
 [	 ]*70:[	 ]+90[	 ]+nop[ 	]*
@@ -78,7 +78,7 @@ Disassembly of section .text:
 [	 ]*75:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*76:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*77:[	 ]+89 f6[	 ]+mov[ 	]+%esi,%esi
-[	 ]*79:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*79:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+80 <nop8>:
 [	 ]*80:[	 ]+90[	 ]+nop[ 	]*
@@ -90,7 +90,7 @@ Disassembly of section .text:
 [	 ]*86:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*87:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*88:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*89:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*89:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+90 <nop7>:
 [	 ]*90:[	 ]+90[	 ]+nop[ 	]*
@@ -102,7 +102,7 @@ Disassembly of section .text:
 [	 ]*96:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*97:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*98:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*99:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*99:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+a0 <nop6>:
 [	 ]*a0:[	 ]+90[	 ]+nop[ 	]*
@@ -130,7 +130,7 @@ Disassembly of section .text:
 [	 ]*b9:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*ba:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*bb:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*bc:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*bc:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+c0 <nop4>:
 [	 ]*c0:[	 ]+90[	 ]+nop[ 	]*
@@ -145,7 +145,7 @@ Disassembly of section .text:
 [	 ]*c9:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*ca:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*cb:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*cc:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*cc:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+d0 <nop3>:
 [	 ]*d0:[	 ]+90[	 ]+nop[ 	]*
diff --git a/gas/testsuite/gas/i386/nops-2-merom.d b/gas/testsuite/gas/i386/nops-2-merom.d
index c6ea559..7a54411 100644
--- a/gas/testsuite/gas/i386/nops-2-merom.d
+++ b/gas/testsuite/gas/i386/nops-2-merom.d
@@ -10,7 +10,7 @@ Disassembly of section .text:
 0+ <nop>:
 [	 ]*0:[	 ]+0f 44 c0[	 ]+cmove[ 	]+%eax,%eax
 [	 ]*3:[	 ]+8d b6 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*9:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*9:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+10 <nop15>:
 [	 ]*10:[	 ]+90[	 ]+nop[ 	]*
@@ -32,15 +32,15 @@ Disassembly of section .text:
 0+20 <nop14>:
 [	 ]*20:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*21:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*22:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*29:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*22:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
+[	 ]*29:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+30 <nop13>:
 [	 ]*30:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*31:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*32:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*33:[	 ]+8d b6 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*39:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*39:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+40 <nop12>:
 [	 ]*40:[	 ]+90[	 ]+nop[ 	]*
@@ -56,8 +56,8 @@ Disassembly of section .text:
 [	 ]*52:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*53:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*54:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*55:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*59:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*55:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
+[	 ]*59:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+60 <nop10>:
 [	 ]*60:[	 ]+90[	 ]+nop[ 	]*
@@ -67,7 +67,7 @@ Disassembly of section .text:
 [	 ]*64:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*65:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*66:[	 ]+8d 76 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*69:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*69:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+70 <nop9>:
 [	 ]*70:[	 ]+90[	 ]+nop[ 	]*
@@ -78,7 +78,7 @@ Disassembly of section .text:
 [	 ]*75:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*76:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*77:[	 ]+89 f6[	 ]+mov[ 	]+%esi,%esi
-[	 ]*79:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*79:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+80 <nop8>:
 [	 ]*80:[	 ]+90[	 ]+nop[ 	]*
@@ -90,7 +90,7 @@ Disassembly of section .text:
 [	 ]*86:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*87:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*88:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*89:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*89:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+90 <nop7>:
 [	 ]*90:[	 ]+90[	 ]+nop[ 	]*
@@ -102,7 +102,7 @@ Disassembly of section .text:
 [	 ]*96:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*97:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*98:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*99:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*99:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+a0 <nop6>:
 [	 ]*a0:[	 ]+90[	 ]+nop[ 	]*
@@ -130,7 +130,7 @@ Disassembly of section .text:
 [	 ]*b9:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*ba:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*bb:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*bc:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*bc:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+c0 <nop4>:
 [	 ]*c0:[	 ]+90[	 ]+nop[ 	]*
@@ -145,7 +145,7 @@ Disassembly of section .text:
 [	 ]*c9:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*ca:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*cb:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*cc:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*cc:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+d0 <nop3>:
 [	 ]*d0:[	 ]+90[	 ]+nop[ 	]*
diff --git a/gas/testsuite/gas/i386/nops-2.d b/gas/testsuite/gas/i386/nops-2.d
index 6382f7e..003a4eb 100644
--- a/gas/testsuite/gas/i386/nops-2.d
+++ b/gas/testsuite/gas/i386/nops-2.d
@@ -9,7 +9,7 @@ Disassembly of section .text:
 0+ <nop>:
 [	 ]*0:[	 ]+0f 44 c0[	 ]+cmove[ 	]+%eax,%eax
 [	 ]*3:[	 ]+8d b6 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*9:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*9:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+10 <nop15>:
 [	 ]*10:[	 ]+90[	 ]+nop[ 	]*
@@ -31,15 +31,15 @@ Disassembly of section .text:
 0+20 <nop14>:
 [	 ]*20:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*21:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*22:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*29:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*22:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
+[	 ]*29:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+30 <nop13>:
 [	 ]*30:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*31:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*32:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*33:[	 ]+8d b6 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*39:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*39:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+40 <nop12>:
 [	 ]*40:[	 ]+90[	 ]+nop[ 	]*
@@ -55,8 +55,8 @@ Disassembly of section .text:
 [	 ]*52:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*53:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*54:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*55:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*59:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*55:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
+[	 ]*59:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+60 <nop10>:
 [	 ]*60:[	 ]+90[	 ]+nop[ 	]*
@@ -66,7 +66,7 @@ Disassembly of section .text:
 [	 ]*64:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*65:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*66:[	 ]+8d 76 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
-[	 ]*69:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*69:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+70 <nop9>:
 [	 ]*70:[	 ]+90[	 ]+nop[ 	]*
@@ -77,7 +77,7 @@ Disassembly of section .text:
 [	 ]*75:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*76:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*77:[	 ]+89 f6[	 ]+mov[ 	]+%esi,%esi
-[	 ]*79:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi\),%edi
+[	 ]*79:[	 ]+8d bc 27 00 00 00 00[	 ]+lea[ 	]+0x0\(%edi,%eiz,1\),%edi
 
 0+80 <nop8>:
 [	 ]*80:[	 ]+90[	 ]+nop[ 	]*
@@ -89,7 +89,7 @@ Disassembly of section .text:
 [	 ]*86:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*87:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*88:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*89:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*89:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+90 <nop7>:
 [	 ]*90:[	 ]+90[	 ]+nop[ 	]*
@@ -101,7 +101,7 @@ Disassembly of section .text:
 [	 ]*96:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*97:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*98:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*99:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*99:[	 ]+8d b4 26 00 00 00 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+a0 <nop6>:
 [	 ]*a0:[	 ]+90[	 ]+nop[ 	]*
@@ -129,7 +129,7 @@ Disassembly of section .text:
 [	 ]*b9:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*ba:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*bb:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*bc:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*bc:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+c0 <nop4>:
 [	 ]*c0:[	 ]+90[	 ]+nop[ 	]*
@@ -144,7 +144,7 @@ Disassembly of section .text:
 [	 ]*c9:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*ca:[	 ]+90[	 ]+nop[ 	]*
 [	 ]*cb:[	 ]+90[	 ]+nop[ 	]*
-[	 ]*cc:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi\),%esi
+[	 ]*cc:[	 ]+8d 74 26 00[	 ]+lea[ 	]+0x0\(%esi,%eiz,1\),%esi
 
 0+d0 <nop3>:
 [	 ]*d0:[	 ]+90[	 ]+nop[ 	]*
diff --git a/gas/testsuite/gas/i386/nops-3-i386.d b/gas/testsuite/gas/i386/nops-3-i386.d
index 4184362..6ab3fab 100644
--- a/gas/testsuite/gas/i386/nops-3-i386.d
+++ b/gas/testsuite/gas/i386/nops-3-i386.d
@@ -40,6 +40,6 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop    
 [ 	]*[a-f0-9]+:	90                   	nop    
 [ 	]*[a-f0-9]+:	89 c3                	mov    %eax,%ebx
-[ 	]*[a-f0-9]+:	8d b4 26 00 00 00 00 	lea    0x0\(%esi\),%esi
-[ 	]*[a-f0-9]+:	8d bc 27 00 00 00 00 	lea    0x0\(%edi\),%edi
+[ 	]*[a-f0-9]+:	8d b4 26 00 00 00 00 	lea    0x0\(%esi,%eiz,1\),%esi
+[ 	]*[a-f0-9]+:	8d bc 27 00 00 00 00 	lea    0x0\(%edi,%eiz,1\),%edi
 #pass
diff --git a/gas/testsuite/gas/i386/nops-3.d b/gas/testsuite/gas/i386/nops-3.d
index 1764069..77ce744 100644
--- a/gas/testsuite/gas/i386/nops-3.d
+++ b/gas/testsuite/gas/i386/nops-3.d
@@ -39,6 +39,6 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	90                   	nop    
 [ 	]*[a-f0-9]+:	90                   	nop    
 [ 	]*[a-f0-9]+:	89 c3                	mov    %eax,%ebx
-[ 	]*[a-f0-9]+:	8d b4 26 00 00 00 00 	lea    0x0\(%esi\),%esi
-[ 	]*[a-f0-9]+:	8d bc 27 00 00 00 00 	lea    0x0\(%edi\),%edi
+[ 	]*[a-f0-9]+:	8d b4 26 00 00 00 00 	lea    0x0\(%esi,%eiz,1\),%esi
+[ 	]*[a-f0-9]+:	8d bc 27 00 00 00 00 	lea    0x0\(%edi,%eiz,1\),%edi
 #pass
diff --git a/gas/testsuite/gas/i386/sib-intel.d b/gas/testsuite/gas/i386/sib-intel.d
new file mode 100644
index 0000000..707f74a
--- /dev/null
+++ b/gas/testsuite/gas/i386/sib-intel.d
@@ -0,0 +1,20 @@
+#source: sib.s
+#objdump: -dw -Mintel
+#name: i386 SIB (Intel mode)
+
+.*: +file format .*
+
+Disassembly of section .text:
+
+0+ <foo>:
+[ 	]*[a-f0-9]+:	8b 03                	mov    eax,DWORD PTR \[ebx\]
+[ 	]*[a-f0-9]+:	8b 04 23             	mov    eax,DWORD PTR \[ebx\+eiz\*1\]
+[ 	]*[a-f0-9]+:	8b 04 63             	mov    eax,DWORD PTR \[ebx\+eiz\*2\]
+[ 	]*[a-f0-9]+:	8b 04 a3             	mov    eax,DWORD PTR \[ebx\+eiz\*4\]
+[ 	]*[a-f0-9]+:	8b 04 e3             	mov    eax,DWORD PTR \[ebx\+eiz\*8\]
+[ 	]*[a-f0-9]+:	8b 04 24             	mov    eax,DWORD PTR \[esp\]
+[ 	]*[a-f0-9]+:	8b 04 24             	mov    eax,DWORD PTR \[esp\]
+[ 	]*[a-f0-9]+:	8b 04 64             	mov    eax,DWORD PTR \[esp\+eiz\*2\]
+[ 	]*[a-f0-9]+:	8b 04 a4             	mov    eax,DWORD PTR \[esp\+eiz\*4\]
+[ 	]*[a-f0-9]+:	8b 04 e4             	mov    eax,DWORD PTR \[esp\+eiz\*8\]
+#pass
diff --git a/gas/testsuite/gas/i386/sib.d b/gas/testsuite/gas/i386/sib.d
index 2a5dbb6..574a308 100644
--- a/gas/testsuite/gas/i386/sib.d
+++ b/gas/testsuite/gas/i386/sib.d
@@ -5,11 +5,15 @@
 
 Disassembly of section .text:
 
-0+000 <foo>:
-   0:	8b 04 23 [ 	]*mov [ 	]*\(%ebx\),%eax
-   3:	8b 04 63 [ 	]*mov [ 	]*\(%ebx\),%eax
-   6:	8b 04 a3 [ 	]*mov [ 	]*\(%ebx\),%eax
-   9:	8b 04 e3 [ 	]*mov [ 	]*\(%ebx\),%eax
-   c:	90 [ 	]*nop [ 	]*
-   d:	90 [ 	]*nop [ 	]*
-	...
+0+ <foo>:
+[ 	]*[a-f0-9]+:	8b 03                	mov    \(%ebx\),%eax
+[ 	]*[a-f0-9]+:	8b 04 23             	mov    \(%ebx,%eiz,1\),%eax
+[ 	]*[a-f0-9]+:	8b 04 63             	mov    \(%ebx,%eiz,2\),%eax
+[ 	]*[a-f0-9]+:	8b 04 a3             	mov    \(%ebx,%eiz,4\),%eax
+[ 	]*[a-f0-9]+:	8b 04 e3             	mov    \(%ebx,%eiz,8\),%eax
+[ 	]*[a-f0-9]+:	8b 04 24             	mov    \(%esp\),%eax
+[ 	]*[a-f0-9]+:	8b 04 24             	mov    \(%esp\),%eax
+[ 	]*[a-f0-9]+:	8b 04 64             	mov    \(%esp,%eiz,2\),%eax
+[ 	]*[a-f0-9]+:	8b 04 a4             	mov    \(%esp,%eiz,4\),%eax
+[ 	]*[a-f0-9]+:	8b 04 e4             	mov    \(%esp,%eiz,8\),%eax
+#pass
diff --git a/gas/testsuite/gas/i386/sib.s b/gas/testsuite/gas/i386/sib.s
index 25d88b7..f11d6d2 100644
--- a/gas/testsuite/gas/i386/sib.s
+++ b/gas/testsuite/gas/i386/sib.s
@@ -1,11 +1,16 @@
 #Test the special case of the index bits, 0x4, in SIB.
 
 	.text
+	.allow_index_reg
 foo:
-	.byte	0x8B, 0x04, 0x23	# effect is: movl (%ebx), %eax
-	.byte	0x8B, 0x04, 0x63	# effect is: movl (%ebx), %eax	
-	.byte	0x8B, 0x04, 0xA3	# effect is: movl (%ebx), %eax
-	.byte	0x8B, 0x04, 0xE3	# effect is: movl (%ebx), %eax
-	nop
-	nop
-	.p2align	4,0
+	mov	(%ebx),%eax
+	mov	(%ebx,%eiz,1),%eax
+	mov	(%ebx,%eiz,2),%eax
+	mov	(%ebx,%eiz,4),%eax
+	mov	(%ebx,%eiz,8),%eax
+	mov	(%esp),%eax
+	mov	(%esp,%eiz,1),%eax
+	mov	(%esp,%eiz,2),%eax
+	mov	(%esp,%eiz,4),%eax
+	mov	(%esp,%eiz,8),%eax
+	.p2align 4
diff --git a/gas/testsuite/gas/i386/x86-64-sib-intel.d b/gas/testsuite/gas/i386/x86-64-sib-intel.d
new file mode 100644
index 0000000..0dce66f
--- /dev/null
+++ b/gas/testsuite/gas/i386/x86-64-sib-intel.d
@@ -0,0 +1,21 @@
+#source: x86-64-sib.s
+#as: -J
+#objdump: -dw -Mintel
+#name: x86-64 SIB (Intel mode)
+
+.*: +file format .*
+
+Disassembly of section .text:
+
+0+ <foo>:
+[ 	]*[a-f0-9]+:	8b 03                	mov    eax,DWORD PTR \[rbx\]
+[ 	]*[a-f0-9]+:	8b 04 23             	mov    eax,DWORD PTR \[rbx\+riz\*1\]
+[ 	]*[a-f0-9]+:	8b 04 63             	mov    eax,DWORD PTR \[rbx\+riz\*2\]
+[ 	]*[a-f0-9]+:	8b 04 a3             	mov    eax,DWORD PTR \[rbx\+riz\*4\]
+[ 	]*[a-f0-9]+:	8b 04 e3             	mov    eax,DWORD PTR \[rbx\+riz\*8\]
+[ 	]*[a-f0-9]+:	8b 04 24             	mov    eax,DWORD PTR \[rsp\]
+[ 	]*[a-f0-9]+:	8b 04 24             	mov    eax,DWORD PTR \[rsp\]
+[ 	]*[a-f0-9]+:	8b 04 64             	mov    eax,DWORD PTR \[rsp\+riz\*2\]
+[ 	]*[a-f0-9]+:	8b 04 a4             	mov    eax,DWORD PTR \[rsp\+riz\*4\]
+[ 	]*[a-f0-9]+:	8b 04 e4             	mov    eax,DWORD PTR \[rsp\+riz\*8\]
+#pass
diff --git a/gas/testsuite/gas/i386/x86-64-sib.d b/gas/testsuite/gas/i386/x86-64-sib.d
new file mode 100644
index 0000000..32e02be
--- /dev/null
+++ b/gas/testsuite/gas/i386/x86-64-sib.d
@@ -0,0 +1,20 @@
+#as: -J
+#objdump: -dw
+#name: x86-64 SIB
+
+.*: +file format .*
+
+Disassembly of section .text:
+
+0+ <foo>:
+[ 	]*[a-f0-9]+:	8b 03                	mov    \(%rbx\),%eax
+[ 	]*[a-f0-9]+:	8b 04 23             	mov    \(%rbx,%riz,1\),%eax
+[ 	]*[a-f0-9]+:	8b 04 63             	mov    \(%rbx,%riz,2\),%eax
+[ 	]*[a-f0-9]+:	8b 04 a3             	mov    \(%rbx,%riz,4\),%eax
+[ 	]*[a-f0-9]+:	8b 04 e3             	mov    \(%rbx,%riz,8\),%eax
+[ 	]*[a-f0-9]+:	8b 04 24             	mov    \(%rsp\),%eax
+[ 	]*[a-f0-9]+:	8b 04 24             	mov    \(%rsp\),%eax
+[ 	]*[a-f0-9]+:	8b 04 64             	mov    \(%rsp,%riz,2\),%eax
+[ 	]*[a-f0-9]+:	8b 04 a4             	mov    \(%rsp,%riz,4\),%eax
+[ 	]*[a-f0-9]+:	8b 04 e4             	mov    \(%rsp,%riz,8\),%eax
+#pass
diff --git a/gas/testsuite/gas/i386/x86-64-sib.s b/gas/testsuite/gas/i386/x86-64-sib.s
new file mode 100644
index 0000000..26ab395
--- /dev/null
+++ b/gas/testsuite/gas/i386/x86-64-sib.s
@@ -0,0 +1,16 @@
+#Test the special case of the index bits, 0x4, in SIB.
+
+	.text
+	.allow_index_reg
+foo:
+	mov	(%rbx),%eax
+	mov	(%rbx,%riz,1),%eax
+	mov	(%rbx,%riz,2),%eax
+	mov	(%rbx,%riz,4),%eax
+	mov	(%rbx,%riz,8),%eax
+	mov	(%rsp),%eax
+	mov	(%rsp,%riz,1),%eax
+	mov	(%rsp,%riz,2),%eax
+	mov	(%rsp,%riz,4),%eax
+	mov	(%rsp,%riz,8),%eax
+	.p2align 4