Handle "Mov" which is mov, movss, movsd, and used for nacl.read.tp.

src/IceInstX8632.def

 //===- subzero/src/IceInstX8632.def - X-macros for x86-32 insts -*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file defines properties of lowered x86-32 instructions in the
@@ skipping 60 matching lines @@
 #define REGX8632_BYTEREG_TABLE                                          \
   /* val, encode */                                                     \
   X(Reg_al, = 0) \
   X(Reg_cl, = 1) \
   X(Reg_dl, = 2) \
   X(Reg_bl, = 3) \
   X(Reg_ah, = 4)
 //#define X(val, encode)
 
 // X86 segment registers.
-#define SEG_REGX8632_TABLE  \
-  /* enum value, name */    \
-  X(SegReg_CS, "cs")        \
-  X(SegReg_DS, "ds")        \
-  X(SegReg_ES, "es")        \
-  X(SegReg_SS, "ss")        \
-  X(SegReg_FS, "fs")        \
-  X(SegReg_GS, "gs")        \
-//#define X(val, name)
+#define SEG_REGX8632_TABLE         \
+  /* enum value, name, prefix */   \
+  X(SegReg_CS, "cs", 0x2E)         \
+  X(SegReg_DS, "ds", 0x3E)         \
+  X(SegReg_ES, "es", 0x26)         \
+  X(SegReg_SS, "ss", 0x36)         \
+  X(SegReg_FS, "fs", 0x64)         \
+  X(SegReg_GS, "gs", 0x65)         \
+//#define X(val, name, prefix)
 
 // X87 ST(n) registers.
 #define X87ST_REGX8632_TABLE         \
   /* enum value, encode, name */     \
   X(X87ST_First, = 0, "st(0)")       \
   X(X87ST_0, = 0, "st(0)")           \
   X(X87ST_1, = 1, "st(1)")           \
   X(X87ST_2, = 2, "st(2)")           \
   X(X87ST_3, = 3, "st(3)")           \
   X(X87ST_4, = 4, "st(4)")           \
@@ skipping 48 matching lines @@
   X(IceType_v4i1,  IceType_i32 , "?" , ""  , "d",  "xmmword ptr") \
   X(IceType_v8i1,  IceType_i16 , "?" , ""  , "w",  "xmmword ptr") \
   X(IceType_v16i1, IceType_i8  , "?" , ""  , "b",  "xmmword ptr") \
   X(IceType_v16i8, IceType_i8  , "?" , ""  , "b",  "xmmword ptr") \
   X(IceType_v8i16, IceType_i16 , "?" , ""  , "w",  "xmmword ptr") \
   X(IceType_v4i32, IceType_i32 , "dq", ""  , "d",  "xmmword ptr") \
   X(IceType_v4f32, IceType_f32 , "ps", ""  , "" ,  "xmmword ptr") \
 //#define X(tag, elementty, cvt, sdss, width)
 
 #endif // SUBZERO_SRC_ICEINSTX8632_DEF