RegisterPresssureTracker: Track live physical register by unit.

[oota-llvm.git] / include / llvm / MC / MCInstrDesc.h

diff --git a/include/llvm/MC/MCInstrDesc.h b/include/llvm/MC/MCInstrDesc.h
index ca497b87e62d25fbe16c18852798bb444bcf1028..02383f8bc6587bcf0ba66db8d7d4f73ef0ac69cd 100644 (file)
--- a/include/llvm/MC/MCInstrDesc.h
+++ b/include/llvm/MC/MCInstrDesc.h
@@ -1,4 +1,4 @@
-//===-- llvm/Mc/McInstrDesc.h - Instruction Descriptors -*- C++ -*-===//
+//===-- llvm/MC/MCInstrDesc.h - Instruction Descriptors -*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -58,17 +58,17 @@ public:
   /// if the operand is a register.  If isLookupPtrRegClass is set, then this is
   /// an index that is passed to TargetRegisterInfo::getPointerRegClass(x) to
   /// get a dynamic register class.
-  short RegClass;
+  int16_t RegClass;
 
   /// Flags - These are flags from the MCOI::OperandFlags enum.
-  unsigned short Flags;
+  uint8_t Flags;
+
+  /// OperandType - Information about the type of the operand.
+  uint8_t OperandType;
 
   /// Lower 16 bits are used to specify which constraints are set. The higher 16
   /// bits are used to specify the value of constraints (4 bits each).
-  unsigned Constraints;
-
-  /// OperandType - Information about the type of the operand.
-  MCOI::OperandType OperandType;
+  uint32_t Constraints;
   /// Currently no other information.
 
   /// isLookupPtrRegClass - Set if this operand is a pointer value and it
@@ -107,6 +107,7 @@ namespace MCID {
     Compare,
     MoveImm,
     Bitcast,
+    Select,
     DelaySlot,
     FoldableAsLoad,
     MayLoad,
@@ -139,8 +140,8 @@ public:
   unsigned short  Size;          // Number of bytes in encoding.
   unsigned        Flags;         // Flags identifying machine instr class
   uint64_t        TSFlags;       // Target Specific Flag values
-  const unsigned *ImplicitUses;  // Registers implicitly read by this instr
-  const unsigned *ImplicitDefs;  // Registers implicitly defined by this instr
+  const uint16_t *ImplicitUses;  // Registers implicitly read by this instr
+  const uint16_t *ImplicitDefs;  // Registers implicitly defined by this instr
   const MCOperandInfo *OpInfo;   // 'NumOperands' entries about operands
 
   /// getOperandConstraint - Returns the value of the specific constraint if
@@ -282,6 +283,12 @@ public:
     return Flags & (1 << MCID::Bitcast);
   }
 
+  /// isSelect - Return true if this is a select instruction.
+  ///
+  bool isSelect() const {
+    return Flags & (1 << MCID::Select);
+  }
+
   /// isNotDuplicable - Return true if this instruction cannot be safely
   /// duplicated.  For example, if the instruction has a unique labels attached
   /// to it, duplicating it would cause multiple definition errors.
@@ -448,7 +455,7 @@ public:
   /// does.
   ///
   /// This method returns null if the instruction has no implicit uses.
-  const unsigned *getImplicitUses() const {
+  const uint16_t *getImplicitUses() const {
     return ImplicitUses;
   }
 
@@ -471,7 +478,7 @@ public:
   /// EAX/EDX/EFLAGS registers.
   ///
   /// This method returns null if the instruction has no implicit defs.
-  const unsigned *getImplicitDefs() const {
+  const uint16_t *getImplicitDefs() const {
     return ImplicitDefs;
   }
 
@@ -487,7 +494,7 @@ public:
   /// hasImplicitUseOfPhysReg - Return true if this instruction implicitly
   /// uses the specified physical register.
   bool hasImplicitUseOfPhysReg(unsigned Reg) const {
-    if (const unsigned *ImpUses = ImplicitUses)
+    if (const uint16_t *ImpUses = ImplicitUses)
       for (; *ImpUses; ++ImpUses)
         if (*ImpUses == Reg) return true;
     return false;
@@ -496,7 +503,7 @@ public:
   /// hasImplicitDefOfPhysReg - Return true if this instruction implicitly
   /// defines the specified physical register.
   bool hasImplicitDefOfPhysReg(unsigned Reg) const {
-    if (const unsigned *ImpDefs = ImplicitDefs)
+    if (const uint16_t *ImpDefs = ImplicitDefs)
       for (; *ImpDefs; ++ImpDefs)
         if (*ImpDefs == Reg) return true;
     return false;