1 files changed, 46 insertions, 0 deletions
diff --git a/lib/Target/PowerPC/PowerPCInstrs.td b/lib/Target/PowerPC/PowerPCInstrs.td
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+++ b/lib/Target/PowerPC/PowerPCInstrs.td
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+//===- PowerPCInstrInfo.td - Describe the PowerPC Instruction Set -*- C++ -*-=//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
+//
+//
+//===----------------------------------------------------------------------===//
+
+class Format<bits<4> val> {
+  bits<4> Value = val;
+}
+
+// All of the PowerPC instruction formats, plus a pseudo-instruction format:
+def Pseudo : Format<0>;
+def IForm : Format<1>;
+def BForm : Format<2>;
+def SCForm : Format<3>;
+def DForm : Format<4>;
+def XForm : Format<5>;
+def XLForm : Format<6>;
+def XFXForm : Format<7>;
+def XFLForm : Format<8>;
+def XOForm : Format<9>;
+def AForm : Format<10>;
+def MForm : Format<11>;
+
+class PPCInst<string nm, bits<6> opcd, Format f> : Instruction {
+  let Namespace = "PowerPC";
+
+  let Name = nm;
+  bits<6> Opcode = opcd;
+  Format Form = f;
+  bits<4> FormBits = Form.Value;
+}
+
+// Pseudo-instructions:
+def PHI : PPCInst<"PHI", 0, Pseudo>;          // PHI node...
+def NOP : PPCInst<"NOP", 0, Pseudo>;          // No-op
+def ADJCALLSTACKDOWN : PPCInst<"ADJCALLSTACKDOWN", 0, Pseudo>;
+def ADJCALLSTACKUP : PPCInst<"ADJCALLSTACKUP", 0, Pseudo>;
+
+