Implement the rex64 prefix.

[oota-llvm.git] / lib / Target / X86 / X86InstrFormats.td

diff --git a/lib/Target/X86/X86InstrFormats.td b/lib/Target/X86/X86InstrFormats.td
index 79187e9a76d7095cfc9dd88d1c7a23d722208329..a4403591084ee5c323d399c501416f08233ac619 100644 (file)
--- a/lib/Target/X86/X86InstrFormats.td
+++ b/lib/Target/X86/X86InstrFormats.td
@@ -39,7 +39,8 @@ def MRM_E8 : Format<39>;
 def MRM_F0 : Format<40>;
 def MRM_F8 : Format<41>;
 def MRM_F9 : Format<42>;
-def RawFrmImm16 : Format<43>;
+def RawFrmImm8 : Format<43>;
+def RawFrmImm16 : Format<44>;
 
 // ImmType - This specifies the immediate type used by an instruction. This is
 // part of the ad-hoc solution used to emit machine instruction encodings by our
@@ -108,6 +109,7 @@ class VEX_W  { bit hasVEX_WPrefix = 1; }
 class VEX_4V : VEX { bit hasVEX_4VPrefix = 1; }
 class VEX_I8IMM { bit hasVEX_i8ImmReg = 1; }
 class VEX_L  { bit hasVEX_L = 1; }
+class Has3DNow0F0FOpcode  { bit has3DNow0F0FOpcode = 1; }
 
 class X86Inst<bits<8> opcod, Format f, ImmType i, dag outs, dag ins,
               string AsmStr, Domain d = GenericDomain>
@@ -123,6 +125,9 @@ class X86Inst<bits<8> opcod, Format f, ImmType i, dag outs, dag ins,
   dag InOperandList = ins;
   string AsmString = AsmStr;
 
+  // If this is a pseudo instruction, mark it isCodeGenOnly.
+  let isCodeGenOnly = !eq(!cast<string>(f), "Pseudo");
+
   //
   // Attributes specific to X86 instructions...
   //
@@ -141,6 +146,7 @@ class X86Inst<bits<8> opcod, Format f, ImmType i, dag outs, dag ins,
   bit hasVEX_i8ImmReg = 0;  // Does this inst requires the last source register
                             // to be encoded in a immediate field?
   bit hasVEX_L = 0;         // Does this inst uses large (256-bit) registers?
+  bit has3DNow0F0FOpcode =0;// Wacky 3dNow! encoding?
 
   // TSFlags layout should be kept in sync with X86InstrInfo.h.
   let TSFlags{5-0}   = FormBits;
@@ -159,6 +165,7 @@ class X86Inst<bits<8> opcod, Format f, ImmType i, dag outs, dag ins,
   let TSFlags{34}    = hasVEX_4VPrefix;
   let TSFlags{35}    = hasVEX_i8ImmReg;
   let TSFlags{36}    = hasVEX_L;
+  let TSFlags{37}    = has3DNow0F0FOpcode;
 }
 
 class I<bits<8> o, Format f, dag outs, dag ins, string asm,