ARM "rrx" shift operands do not have an immediate. PR7790.

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

diff --git a/lib/Target/ARM/ARMMachineFunctionInfo.h b/lib/Target/ARM/ARMMachineFunctionInfo.h
index 6b3ac21d527c8fbe9b6586d025872c0a4aa15859..7e57a1ca557629fdf696358c3ad8786ea246d08a 100644 (file)
--- a/lib/Target/ARM/ARMMachineFunctionInfo.h
+++ b/lib/Target/ARM/ARMMachineFunctionInfo.h
@@ -1,10 +1,10 @@
 //====- ARMMachineFuctionInfo.h - ARM machine function info -----*- C++ -*-===//
-// 
+//
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the Evan Cheng 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.
+//
 //===----------------------------------------------------------------------===//
 //
 // This file declares ARM-specific per-machine-function information.
@@ -16,7 +16,9 @@
 
 #include "ARMSubtarget.h"
 #include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/Target/TargetRegisterInfo.h"
 #include "llvm/Target/TargetMachine.h"
+#include "llvm/ADT/BitVector.h"
 
 namespace llvm {
 
@@ -25,9 +27,14 @@ namespace llvm {
 class ARMFunctionInfo : public MachineFunctionInfo {
 
   /// isThumb - True if this function is compiled under Thumb mode.
-  ///
+  /// Used to initialized Align, so must precede it.
   bool isThumb;
 
+  /// hasThumb2 - True if the target architecture supports Thumb2. Do not use
+  /// to determine if function is compiled under Thumb mode, for that use
+  /// 'isThumb'.
+  bool hasThumb2;
+
   /// VarArgsRegSaveSize - Size of the register save area for vararg functions.
   ///
   unsigned VarArgsRegSaveSize;
@@ -36,9 +43,9 @@ class ARMFunctionInfo : public MachineFunctionInfo {
   /// processFunctionBeforeCalleeSavedScan().
   bool HasStackFrame;
 
-  /// LRSForceSpilled - True if the LR register has been for spilled to enable
-  /// far jump.
-  bool LRForceSpilled;
+  /// LRSpilledForFarJump - True if the LR register has been for spilled to
+  /// enable far jump.
+  bool LRSpilledForFarJump;
 
   /// FramePtrSpillOffset - If HasStackFrame, this records the frame pointer
   /// spill stack offset.
@@ -64,28 +71,53 @@ class ARMFunctionInfo : public MachineFunctionInfo {
 
   /// GPRCS1Frames, GPRCS2Frames, DPRCSFrames - Keeps track of frame indices
   /// which belong to these spill areas.
-  std::vector<bool> GPRCS1Frames;
-  std::vector<bool> GPRCS2Frames;
-  std::vector<bool> DPRCSFrames;
+  BitVector GPRCS1Frames;
+  BitVector GPRCS2Frames;
+  BitVector DPRCSFrames;
+
+  /// SpilledCSRegs - A BitVector mask of all spilled callee-saved registers.
+  ///
+  BitVector SpilledCSRegs;
 
   /// JumpTableUId - Unique id for jumptables.
   ///
   unsigned JumpTableUId;
 
+  unsigned ConstPoolEntryUId;
+
+  /// VarArgsFrameIndex - FrameIndex for start of varargs area.
+  int VarArgsFrameIndex;
+
+  /// HasITBlocks - True if IT blocks have been inserted.
+  bool HasITBlocks;
+
 public:
   ARMFunctionInfo() :
     isThumb(false),
-    VarArgsRegSaveSize(0), HasStackFrame(false), LRForceSpilled(false),
+    hasThumb2(false),
+    VarArgsRegSaveSize(0), HasStackFrame(false),
+    LRSpilledForFarJump(false),
     FramePtrSpillOffset(0), GPRCS1Offset(0), GPRCS2Offset(0), DPRCSOffset(0),
-    GPRCS1Size(0), GPRCS2Size(0), DPRCSSize(0), JumpTableUId(0) {}
+    GPRCS1Size(0), GPRCS2Size(0), DPRCSSize(0),
+    GPRCS1Frames(0), GPRCS2Frames(0), DPRCSFrames(0),
+    JumpTableUId(0), ConstPoolEntryUId(0), VarArgsFrameIndex(0),
+    HasITBlocks(false) {}
 
-  ARMFunctionInfo(MachineFunction &MF) :
+  explicit ARMFunctionInfo(MachineFunction &MF) :
     isThumb(MF.getTarget().getSubtarget<ARMSubtarget>().isThumb()),
-    VarArgsRegSaveSize(0), HasStackFrame(false), LRForceSpilled(false),
+    hasThumb2(MF.getTarget().getSubtarget<ARMSubtarget>().hasThumb2()),
+    VarArgsRegSaveSize(0), HasStackFrame(false),
+    LRSpilledForFarJump(false),
     FramePtrSpillOffset(0), GPRCS1Offset(0), GPRCS2Offset(0), DPRCSOffset(0),
-    GPRCS1Size(0), GPRCS2Size(0), DPRCSSize(0), JumpTableUId(0) {}
+    GPRCS1Size(0), GPRCS2Size(0), DPRCSSize(0),
+    GPRCS1Frames(32), GPRCS2Frames(32), DPRCSFrames(32),
+    SpilledCSRegs(MF.getTarget().getRegisterInfo()->getNumRegs()),
+    JumpTableUId(0), ConstPoolEntryUId(0), VarArgsFrameIndex(0),
+    HasITBlocks(false) {}
 
   bool isThumbFunction() const { return isThumb; }
+  bool isThumb1OnlyFunction() const { return isThumb && !hasThumb2; }
+  bool isThumb2Function() const { return isThumb && hasThumb2; }
 
   unsigned getVarArgsRegSaveSize() const { return VarArgsRegSaveSize; }
   void setVarArgsRegSaveSize(unsigned s) { VarArgsRegSaveSize = s; }
@@ -93,12 +125,12 @@ public:
   bool hasStackFrame() const { return HasStackFrame; }
   void setHasStackFrame(bool s) { HasStackFrame = s; }
 
-  bool isLRForceSpilled() const { return LRForceSpilled; }
-  void setLRIsForceSpilled(bool s) { LRForceSpilled = s; }
+  bool isLRSpilledForFarJump() const { return LRSpilledForFarJump; }
+  void setLRIsSpilledForFarJump(bool s) { LRSpilledForFarJump = s; }
 
   unsigned getFramePtrSpillOffset() const { return FramePtrSpillOffset; }
   void setFramePtrSpillOffset(unsigned o) { FramePtrSpillOffset = o; }
-  
+
   unsigned getGPRCalleeSavedArea1Offset() const { return GPRCS1Offset; }
   unsigned getGPRCalleeSavedArea2Offset() const { return GPRCS2Offset; }
   unsigned getDPRCalleeSavedAreaOffset()  const { return DPRCSOffset; }
@@ -133,29 +165,78 @@ public:
 
   void addGPRCalleeSavedArea1Frame(int fi) {
     if (fi >= 0) {
-      if (fi >= (int)GPRCS1Frames.size())
-        GPRCS1Frames.resize(fi+1);
+      int Size = GPRCS1Frames.size();
+      if (fi >= Size) {
+        Size *= 2;
+        if (fi >= Size)
+          Size = fi+1;
+        GPRCS1Frames.resize(Size);
+      }
       GPRCS1Frames[fi] = true;
     }
   }
   void addGPRCalleeSavedArea2Frame(int fi) {
     if (fi >= 0) {
-      if (fi >= (int)GPRCS2Frames.size())
-        GPRCS2Frames.resize(fi+1);
+      int Size = GPRCS2Frames.size();
+      if (fi >= Size) {
+        Size *= 2;
+        if (fi >= Size)
+          Size = fi+1;
+        GPRCS2Frames.resize(Size);
+      }
       GPRCS2Frames[fi] = true;
     }
   }
   void addDPRCalleeSavedAreaFrame(int fi) {
     if (fi >= 0) {
-      if (fi >= (int)DPRCSFrames.size())
-        DPRCSFrames.resize(fi+1);
+      int Size = DPRCSFrames.size();
+      if (fi >= Size) {
+        Size *= 2;
+        if (fi >= Size)
+          Size = fi+1;
+        DPRCSFrames.resize(Size);
+      }
       DPRCSFrames[fi] = true;
     }
   }
 
+  void setCSRegisterIsSpilled(unsigned Reg) {
+    SpilledCSRegs.set(Reg);
+  }
+
+  bool isCSRegisterSpilled(unsigned Reg) const {
+    return SpilledCSRegs[Reg];
+  }
+
+  const BitVector &getSpilledCSRegisters() const {
+    return SpilledCSRegs;
+  }
+
   unsigned createJumpTableUId() {
     return JumpTableUId++;
   }
+
+  unsigned getNumJumpTables() const {
+    return JumpTableUId;
+  }
+
+  void initConstPoolEntryUId(unsigned UId) {
+    ConstPoolEntryUId = UId;
+  }
+
+  unsigned getNumConstPoolEntries() const {
+    return ConstPoolEntryUId;
+  }
+
+  unsigned createConstPoolEntryUId() {
+    return ConstPoolEntryUId++;
+  }
+
+  int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
+  void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
+
+  bool hasITBlocks() const { return HasITBlocks; }
+  void setHasITBlocks(bool h) { HasITBlocks = h; }
 };
 } // End llvm namespace