Remove (hopefully) all trailing whitespaces from the mips backend. Patch by Hatanaka...

[oota-llvm.git] / lib / Target / Mips / MipsInstrFormats.td

diff --git a/lib/Target/Mips/MipsInstrFormats.td b/lib/Target/Mips/MipsInstrFormats.td
index ecad441330a29c2e4314e70fbcdffd6ef7f603e1..0120f59026c65325c7a3b56481b956c8a162ee32 100644 (file)
--- a/lib/Target/Mips/MipsInstrFormats.td
+++ b/lib/Target/Mips/MipsInstrFormats.td
@@ -1,16 +1,16 @@
-//===- MipsRegisterInfo.td - Mips Register defs -----------------*- C++ -*-===//
+//===- MipsRegisterInfo.td - Mips Register defs ------------*- tablegen -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by Bruno Cardoso Lopes and is distributed under the 
-// University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 
 //===----------------------------------------------------------------------===//
 //  Describe MIPS instructions format
 //
-//  All the possible Mips fields are:
+//  CPU INSTRUCTION FORMATS
 //
 //  opcode  - operation code.
 //  rs      - src reg.
@@ -22,8 +22,8 @@
 //===----------------------------------------------------------------------===//
 
 // Generic Mips Format
-class MipsInst<dag outs, dag ins, string asmstr, list<dag> pattern, 
-               InstrItinClass itin>: Instruction 
+class MipsInst<dag outs, dag ins, string asmstr, list<dag> pattern,
+               InstrItinClass itin>: Instruction
 {
   field bits<32> Inst;
 
@@ -32,8 +32,8 @@ class MipsInst<dag outs, dag ins, string asmstr, list<dag> pattern,
   bits<6> opcode;
 
   // Top 5 bits are the 'opcode' field
-  let Inst{31-26} = opcode;   
-  
+  let Inst{31-26} = opcode;
+
   dag OutOperandList = outs;
   dag InOperandList  = ins;
 
@@ -42,6 +42,9 @@ class MipsInst<dag outs, dag ins, string asmstr, list<dag> pattern,
   let Itinerary   = itin;
 }
 
+// Mips Pseudo Instructions Format
+class MipsPseudo<dag outs, dag ins, string asmstr, list<dag> pattern>:
+      MipsInst<outs, ins, asmstr, pattern, IIPseudo>;
 
 //===----------------------------------------------------------------------===//
 // Format R instruction class in Mips : <|opcode|rs|rt|rd|shamt|funct|>
@@ -49,7 +52,7 @@ class MipsInst<dag outs, dag ins, string asmstr, list<dag> pattern,
 
 class FR<bits<6> op, bits<6> _funct, dag outs, dag ins, string asmstr,
          list<dag> pattern, InstrItinClass itin>:
-      MipsInst<outs, ins, asmstr, pattern, itin> 
+      MipsInst<outs, ins, asmstr, pattern, itin>
 {
   bits<5>  rd;
   bits<5>  rs;
@@ -61,7 +64,7 @@ class FR<bits<6> op, bits<6> _funct, dag outs, dag ins, string asmstr,
   let funct  = _funct;
 
   let Inst{25-21} = rs;
-  let Inst{20-16} = rt; 
+  let Inst{20-16} = rt;
   let Inst{15-11} = rd;
   let Inst{10-6}  = shamt;
   let Inst{5-0}   = funct;
@@ -72,7 +75,7 @@ class FR<bits<6> op, bits<6> _funct, dag outs, dag ins, string asmstr,
 //===----------------------------------------------------------------------===//
 
 class FI<bits<6> op, dag outs, dag ins, string asmstr, list<dag> pattern,
-         InstrItinClass itin>: MipsInst<outs, ins, asmstr, pattern, itin> 
+         InstrItinClass itin>: MipsInst<outs, ins, asmstr, pattern, itin>
 {
   bits<5>  rt;
   bits<5>  rs;
@@ -81,7 +84,7 @@ class FI<bits<6> op, dag outs, dag ins, string asmstr, list<dag> pattern,
   let opcode = op;
 
   let Inst{25-21} = rs;
-  let Inst{20-16} = rt; 
+  let Inst{20-16} = rt;
   let Inst{15-0}  = imm16;
 }
 
@@ -90,11 +93,90 @@ class FI<bits<6> op, dag outs, dag ins, string asmstr, list<dag> pattern,
 //===----------------------------------------------------------------------===//
 
 class FJ<bits<6> op, dag outs, dag ins, string asmstr, list<dag> pattern,
-         InstrItinClass itin>: MipsInst<outs, ins, asmstr, pattern, itin> 
+         InstrItinClass itin>: MipsInst<outs, ins, asmstr, pattern, itin>
 {
   bits<26> addr;
 
   let opcode = op;
-  
+
   let Inst{25-0} = addr;
 }
+
+//===----------------------------------------------------------------------===//
+//
+//  FLOATING POINT INSTRUCTION FORMATS
+//
+//  opcode  - operation code.
+//  fs      - src reg.
+//  ft      - dst reg (on a 2 regs instr) or src reg (on a 3 reg instr).
+//  fd      - dst reg, only used on 3 regs instr.
+//  fmt     - double or single precision.
+//  funct   - combined with opcode field give us an operation code.
+//
+//===----------------------------------------------------------------------===//
+
+//===----------------------------------------------------------------------===//
+// Format FR instruction class in Mips : <|opcode|fmt|ft|fs|fd|funct|>
+//===----------------------------------------------------------------------===//
+
+class FFR<bits<6> op, bits<6> _funct, bits<5> _fmt, dag outs, dag ins,
+          string asmstr, list<dag> pattern> :
+          MipsInst<outs, ins, asmstr, pattern, NoItinerary>
+{
+  bits<5>  fd;
+  bits<5>  fs;
+  bits<5>  ft;
+  bits<5>  fmt;
+  bits<6>  funct;
+
+  let opcode = op;
+  let funct  = _funct;
+  let fmt    = _fmt;
+
+  let Inst{25-21} = fmt;
+  let Inst{20-16} = ft;
+  let Inst{15-11} = fs;
+  let Inst{10-6}  = fd;
+  let Inst{5-0}   = funct;
+}
+
+//===----------------------------------------------------------------------===//
+// Format FI instruction class in Mips : <|opcode|base|ft|immediate|>
+//===----------------------------------------------------------------------===//
+
+class FFI<bits<6> op, dag outs, dag ins, string asmstr, list<dag> pattern>:
+          MipsInst<outs, ins, asmstr, pattern, NoItinerary>
+{
+  bits<5>  ft;
+  bits<5>  base;
+  bits<16> imm16;
+
+  let opcode = op;
+
+  let Inst{25-21} = base;
+  let Inst{20-16} = ft;
+  let Inst{15-0}  = imm16;
+}
+
+//===----------------------------------------------------------------------===//
+// Compare instruction class in Mips : <|010001|fmt|ft|fs|0000011|condcode|>
+//===----------------------------------------------------------------------===//
+
+class FCC<bits<5> _fmt, dag outs, dag ins, string asmstr, list<dag> pattern> :
+          MipsInst<outs, ins, asmstr, pattern, NoItinerary>
+{
+  bits<5>  fs;
+  bits<5>  ft;
+  bits<4>  cc;
+  bits<5>  fmt;
+
+  let opcode = 0x11;
+  let fmt    = _fmt;
+
+  let Inst{25-21} = fmt;
+  let Inst{20-16} = ft;
+  let Inst{15-11} = fs;
+  let Inst{10-6}  = 0;
+  let Inst{5-4}   = 0b11;
+  let Inst{3-0}   = cc;
+}