Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to

[oota-llvm.git] / lib / Target / ARM / ARM.h

diff --git a/lib/Target/ARM/ARM.h b/lib/Target/ARM/ARM.h
index db270739ea4201e61ba333593aad090a9a1e0199..63bb8f60738644d7e2f4feaabbc8d61b39cceff6 100644 (file)
--- a/lib/Target/ARM/ARM.h
+++ b/lib/Target/ARM/ARM.h
@@ -2,8 +2,7 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the "Instituto Nokia de Tecnologia" and
-// is distributed under the University of Illinois Open Source
+// This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
@@ -16,47 +15,88 @@
 #ifndef TARGET_ARM_H
 #define TARGET_ARM_H
 
-#include <iosfwd>
 #include <cassert>
 
 namespace llvm {
-  // Enums corresponding to ARM condition codes
-  namespace ARMCC {
-    enum CondCodes {
-      EQ,
-      NE,
-      CS,
-      CC,
-      MI,
-      PL,
-      VS,
-      VC,
-      HI,
-      LS,
-      GE,
-      LT,
-      GT,
-      LE,
-      AL
-    };
+
+class ARMTargetMachine;
+class FunctionPass;
+class MachineCodeEmitter;
+class raw_ostream;
+
+// Enums corresponding to ARM condition codes
+namespace ARMCC {
+  // The CondCodes constants map directly to the 4-bit encoding of the 
+  // condition field for predicated instructions. 
+  enum CondCodes {
+    EQ,
+    NE,
+    HS,
+    LO,
+    MI,
+    PL,
+    VS,
+    VC,
+    HI,
+    LS,
+    GE,
+    LT,
+    GT,
+    LE,
+    AL
+  };
+  
+  inline static CondCodes getOppositeCondition(CondCodes CC){
+    switch (CC) {
+    default: assert(0 && "Unknown condition code");
+    case EQ: return NE;
+    case NE: return EQ;
+    case HS: return LO;
+    case LO: return HS;
+    case MI: return PL;
+    case PL: return MI;
+    case VS: return VC;
+    case VC: return VS;
+    case HI: return LS;
+    case LS: return HI;
+    case GE: return LT;
+    case LT: return GE;
+    case GT: return LE;
+    case LE: return GT;
+    }
   }
+}
 
-  namespace ARMShift {
-    enum ShiftTypes {
-      LSL,
-      LSR,
-      ASR,
-      ROR,
-      RRX
-    };
+inline static const char *ARMCondCodeToString(ARMCC::CondCodes CC) {
+  switch (CC) {
+  default: assert(0 && "Unknown condition code");
+  case ARMCC::EQ:  return "eq";
+  case ARMCC::NE:  return "ne";
+  case ARMCC::HS:  return "hs";
+  case ARMCC::LO:  return "lo";
+  case ARMCC::MI:  return "mi";
+  case ARMCC::PL:  return "pl";
+  case ARMCC::VS:  return "vs";
+  case ARMCC::VC:  return "vc";
+  case ARMCC::HI:  return "hi";
+  case ARMCC::LS:  return "ls";
+  case ARMCC::GE:  return "ge";
+  case ARMCC::LT:  return "lt";
+  case ARMCC::GT:  return "gt";
+  case ARMCC::LE:  return "le";
+  case ARMCC::AL:  return "al";
   }
+}
 
-  class FunctionPass;
-  class TargetMachine;
+FunctionPass *createARMISelDag(ARMTargetMachine &TM);
+FunctionPass *createARMCodePrinterPass(raw_ostream &O,
+                                       ARMTargetMachine &TM,
+                                       unsigned OptLevel, bool Verbose);
+FunctionPass *createARMCodeEmitterPass(ARMTargetMachine &TM,
+                                       MachineCodeEmitter &MCE);
+FunctionPass *createARMLoadStoreOptimizationPass();
+FunctionPass *createARMConstantIslandPass();
 
-  FunctionPass *createARMISelDag(TargetMachine &TM);
-  FunctionPass *createARMCodePrinterPass(std::ostream &OS, TargetMachine &TM);
-  FunctionPass *createARMFixMulPass();
 } // end namespace llvm;
 
 // Defines symbolic names for ARM registers.  This defines a mapping from