1 files changed, 133 insertions, 0 deletions
diff --git a/lib/Target/SystemZ/SystemZInstrFormats.td b/lib/Target/SystemZ/SystemZInstrFormats.td
new file mode 100644
index 0000000..b4a8993
--- /dev/null
+++ b/lib/Target/SystemZ/SystemZInstrFormats.td
@@ -0,0 +1,133 @@
+//===- SystemZInstrFormats.td - SystemZ Instruction Formats ----*- tablegen -*-===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
+
+// Format specifies the encoding used by the instruction.  This is part of the
+// ad-hoc solution used to emit machine instruction encodings by our machine
+// code emitter.
+class Format<bits<5> val> {
+  bits<5> Value = val;
+}
+
+def Pseudo   : Format<0>;
+def EForm    : Format<1>;
+def IForm    : Format<2>;
+def RIForm   : Format<3>;
+def RIEForm  : Format<4>;
+def RILForm  : Format<5>;
+def RISForm  : Format<6>;
+def RRForm   : Format<7>;
+def RREForm  : Format<8>;
+def RRFForm  : Format<9>;
+def RRRForm  : Format<10>;
+def RRSForm  : Format<11>;
+def RSForm   : Format<12>;
+def RSIForm  : Format<13>;
+def RSILForm : Format<14>;
+def RSYForm  : Format<15>;
+def RXForm   : Format<16>;
+def RXEForm  : Format<17>;
+def RXFForm  : Format<18>;
+def RXYForm  : Format<19>;
+def SForm    : Format<20>;
+def SIForm   : Format<21>;
+def SILForm  : Format<22>;
+def SIYForm  : Format<23>;
+def SSForm   : Format<24>;
+def SSEForm  : Format<25>;
+def SSFForm  : Format<26>;
+
+class InstSystemZ<bits<16> op, Format f, dag outs, dag ins> : Instruction {
+  let Namespace = "SystemZ";
+
+  bits<16> Opcode = op;
+
+  Format Form = f;
+  bits<5> FormBits = Form.Value;
+
+  dag OutOperandList = outs;
+  dag InOperandList = ins;
+}
+
+class I8<bits<8> op, Format f, dag outs, dag ins, string asmstr, 
+         list<dag> pattern> 
+  : InstSystemZ<0, f, outs, ins> {
+  let Opcode{0-7} = op;
+  let Opcode{8-15} = 0;
+
+  let Pattern = pattern;
+  let AsmString = asmstr;
+}
+
+class I12<bits<12> op, Format f, dag outs, dag ins, string asmstr, 
+         list<dag> pattern> 
+  : InstSystemZ<0, f, outs, ins> {
+  let Opcode{0-11} = op;
+  let Opcode{12-15} = 0;
+
+  let Pattern = pattern;
+  let AsmString = asmstr;
+}
+
+class I16<bits<16> op, Format f, dag outs, dag ins, string asmstr,
+         list<dag> pattern>
+  : InstSystemZ<op, f, outs, ins> {
+  let Pattern = pattern;
+  let AsmString = asmstr;
+}
+
+class RRI<bits<8> op, dag outs, dag ins, string asmstr, list<dag> pattern>
+  : I8<op, RRForm, outs, ins, asmstr, pattern>;
+
+class RII<bits<12> op, dag outs, dag ins, string asmstr, list<dag> pattern>
+  : I12<op, RIForm, outs, ins, asmstr, pattern>;
+
+class RILI<bits<12> op, dag outs, dag ins, string asmstr, list<dag> pattern>
+  : I12<op, RILForm, outs, ins, asmstr, pattern>;
+
+class RREI<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
+  : I16<op, RREForm, outs, ins, asmstr, pattern>;
+
+class RXI<bits<8> op, dag outs, dag ins, string asmstr, list<dag> pattern>
+  : I8<op, RXForm, outs, ins, asmstr, pattern> {
+  let AddedComplexity = 1;
+}
+
+class RXYI<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
+  : I16<op, RXYForm, outs, ins, asmstr, pattern>;
+
+class RSI<bits<8> op, dag outs, dag ins, string asmstr, list<dag> pattern>
+  : I8<op, RSForm, outs, ins, asmstr, pattern> {
+  let AddedComplexity = 1;
+}
+
+class RSYI<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
+  : I16<op, RSYForm, outs, ins, asmstr, pattern>;
+
+class SII<bits<8> op, dag outs, dag ins, string asmstr, list<dag> pattern>
+  : I8<op, SIForm, outs, ins, asmstr, pattern> {
+  let AddedComplexity = 1;
+}
+
+class SIYI<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
+  : I16<op, SIYForm, outs, ins, asmstr, pattern>;
+
+class SILI<bits<16> op, dag outs, dag ins, string asmstr, list<dag> pattern>
+  : I16<op, SILForm, outs, ins, asmstr, pattern>;
+
+
+//===----------------------------------------------------------------------===//
+// Pseudo instructions
+//===----------------------------------------------------------------------===//
+
+class Pseudo<dag outs, dag ins, string asmstr, list<dag> pattern>
+   : InstSystemZ<0, Pseudo, outs, ins> {
+
+  let Pattern = pattern;
+  let AsmString = asmstr;
+}