Separate itinerary classes for mvn from mov; for tst / teq from cmp / cmn.

[oota-llvm.git] / lib / Target / XCore / XCoreRegisterInfo.cpp

diff --git a/lib/Target/XCore/XCoreRegisterInfo.cpp b/lib/Target/XCore/XCoreRegisterInfo.cpp
index f5b0c4e42d425e93e3e86a54ce080e707e3192ed..f82e59814e7753d14782dadfe45dcc118bca2312 100644 (file)
--- a/lib/Target/XCore/XCoreRegisterInfo.cpp
+++ b/lib/Target/XCore/XCoreRegisterInfo.cpp
@@ -82,18 +82,6 @@ const unsigned* XCoreRegisterInfo::getCalleeSavedRegs(const MachineFunction *MF)
   return CalleeSavedRegs;
 }
 
-const TargetRegisterClass* const*
-XCoreRegisterInfo::getCalleeSavedRegClasses(const MachineFunction *MF) const {
-  static const TargetRegisterClass * const CalleeSavedRegClasses[] = {
-    XCore::GRRegsRegisterClass, XCore::GRRegsRegisterClass,
-    XCore::GRRegsRegisterClass, XCore::GRRegsRegisterClass,
-    XCore::GRRegsRegisterClass, XCore::GRRegsRegisterClass,
-    XCore::GRRegsRegisterClass, XCore::RRegsRegisterClass,
-    0
-  };
-  return CalleeSavedRegClasses;
-}
-
 BitVector XCoreRegisterInfo::getReservedRegs(const MachineFunction &MF) const {
   BitVector Reserved(getNumRegs());
   Reserved.set(XCore::CP);
@@ -113,7 +101,7 @@ XCoreRegisterInfo::requiresRegisterScavenging(const MachineFunction &MF) const {
 }
 
 bool XCoreRegisterInfo::hasFP(const MachineFunction &MF) const {
-  return NoFramePointerElim || MF.getFrameInfo()->hasVarSizedObjects();
+  return DisableFramePointerElim(MF) || MF.getFrameInfo()->hasVarSizedObjects();
 }
 
 // This function eliminates ADJCALLSTACKDOWN,
@@ -167,10 +155,9 @@ eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
   MBB.erase(I);
 }
 
-unsigned
+void
 XCoreRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
-                                       int SPAdj, FrameIndexValue *Value,
-                                       RegScavenger *RS) const {
+                                       int SPAdj, RegScavenger *RS) const {
   assert(SPAdj == 0 && "Unexpected");
   MachineInstr &MI = *II;
   DebugLoc dl = MI.getDebugLoc();
@@ -225,12 +212,9 @@ XCoreRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
     unsigned FramePtr = XCore::R10;
     
     if (!isUs) {
-      if (!RS) {
-        std::string msg;
-        raw_string_ostream Msg(msg);
-        Msg << "eliminateFrameIndex Frame size too big: " << Offset;
-        report_fatal_error(Msg.str());
-      }
+      if (!RS)
+        report_fatal_error("eliminateFrameIndex Frame size too big: " +
+                           Twine(Offset));
       unsigned ScratchReg = RS->scavengeRegister(XCore::GRRegsRegisterClass, II,
                                                  SPAdj);
       loadConstant(MBB, II, ScratchReg, Offset, dl);
@@ -278,12 +262,9 @@ XCoreRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
     }
   } else {
     bool isU6 = isImmU6(Offset);
-    if (!isU6 && !isImmU16(Offset)) {
-      std::string msg;
-      raw_string_ostream Msg(msg);
-      Msg << "eliminateFrameIndex Frame size too big: " << Offset;
-      report_fatal_error(Msg.str());
-    }
+    if (!isU6 && !isImmU16(Offset))
+      report_fatal_error("eliminateFrameIndex Frame size too big: " +
+                         Twine(Offset));
 
     switch (MI.getOpcode()) {
     int NewOpcode;
@@ -309,7 +290,6 @@ XCoreRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
   }
   // Erase old instruction.
   MBB.erase(II);
-  return 0;
 }
 
 void
@@ -326,7 +306,7 @@ XCoreRegisterInfo::processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
     int FrameIdx;
     if (! isVarArg) {
       // A fixed offset of 0 allows us to save / restore LR using entsp / retsp.
-      FrameIdx = MFI->CreateFixedObject(RC->getSize(), 0, true, false);
+      FrameIdx = MFI->CreateFixedObject(RC->getSize(), 0, true);
     } else {
       FrameIdx = MFI->CreateStackObject(RC->getSize(), RC->getAlignment(),
                                         false);
@@ -360,10 +340,7 @@ loadConstant(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
   // TODO use mkmsk if possible.
   if (!isImmU16(Value)) {
     // TODO use constant pool.
-    std::string msg;
-    raw_string_ostream Msg(msg);
-    Msg << "loadConstant value too big " << Value;
-    report_fatal_error(Msg.str());
+    report_fatal_error("loadConstant value too big " + Twine(Value));
   }
   int Opcode = isImmU6(Value) ? XCore::LDC_ru6 : XCore::LDC_lru6;
   BuildMI(MBB, I, dl, TII.get(Opcode), DstReg).addImm(Value);
@@ -375,12 +352,8 @@ storeToStack(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
   assert(Offset%4 == 0 && "Misaligned stack offset");
   Offset/=4;
   bool isU6 = isImmU6(Offset);
-  if (!isU6 && !isImmU16(Offset)) {
-    std::string msg;
-    raw_string_ostream Msg(msg);
-    Msg << "storeToStack offset too big " << Offset;
-    report_fatal_error(Msg.str());
-  }
+  if (!isU6 && !isImmU16(Offset))
+    report_fatal_error("storeToStack offset too big " + Twine(Offset));
   int Opcode = isU6 ? XCore::STWSP_ru6 : XCore::STWSP_lru6;
   BuildMI(MBB, I, dl, TII.get(Opcode))
     .addReg(SrcReg)
@@ -393,12 +366,8 @@ loadFromStack(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
   assert(Offset%4 == 0 && "Misaligned stack offset");
   Offset/=4;
   bool isU6 = isImmU6(Offset);
-  if (!isU6 && !isImmU16(Offset)) {
-    std::string msg;
-    raw_string_ostream Msg(msg);
-    Msg << "loadFromStack offset too big " << Offset;
-    report_fatal_error(Msg.str());
-  }
+  if (!isU6 && !isImmU16(Offset))
+    report_fatal_error("loadFromStack offset too big " + Twine(Offset));
   int Opcode = isU6 ? XCore::LDWSP_ru6 : XCore::LDWSP_lru6;
   BuildMI(MBB, I, dl, TII.get(Opcode), DstReg)
     .addImm(Offset);
@@ -425,10 +394,7 @@ void XCoreRegisterInfo::emitPrologue(MachineFunction &MF) const {
 
   if (!isU6 && !isImmU16(FrameSize)) {
     // FIXME could emit multiple instructions.
-    std::string msg;
-    raw_string_ostream Msg(msg);
-    Msg << "emitPrologue Frame size too big: " << FrameSize;
-    report_fatal_error(Msg.str());
+    report_fatal_error("emitPrologue Frame size too big: " + Twine(FrameSize));
   }
   bool emitFrameMoves = needsFrameMoves(MF);
 
@@ -452,7 +418,7 @@ void XCoreRegisterInfo::emitPrologue(MachineFunction &MF) const {
       
       // Show update of SP.
       MCSymbol *FrameLabel = MMI->getContext().CreateTempSymbol();
-      BuildMI(MBB, MBBI, dl, TII.get(XCore::DBG_LABEL)).addSym(FrameLabel);
+      BuildMI(MBB, MBBI, dl, TII.get(XCore::PROLOG_LABEL)).addSym(FrameLabel);
       
       MachineLocation SPDst(MachineLocation::VirtualFP);
       MachineLocation SPSrc(MachineLocation::VirtualFP, -FrameSize * 4);
@@ -471,7 +437,7 @@ void XCoreRegisterInfo::emitPrologue(MachineFunction &MF) const {
       
       if (emitFrameMoves) {
         MCSymbol *SaveLRLabel = MMI->getContext().CreateTempSymbol();
-        BuildMI(MBB, MBBI, dl, TII.get(XCore::DBG_LABEL)).addSym(SaveLRLabel);
+        BuildMI(MBB, MBBI, dl, TII.get(XCore::PROLOG_LABEL)).addSym(SaveLRLabel);
         MachineLocation CSDst(MachineLocation::VirtualFP, LRSpillOffset);
         MachineLocation CSSrc(XCore::LR);
         MMI->getFrameMoves().push_back(MachineMove(SaveLRLabel, CSDst, CSSrc));
@@ -487,7 +453,7 @@ void XCoreRegisterInfo::emitPrologue(MachineFunction &MF) const {
     MBB.addLiveIn(XCore::R10);
     if (emitFrameMoves) {
       MCSymbol *SaveR10Label = MMI->getContext().CreateTempSymbol();
-      BuildMI(MBB, MBBI, dl, TII.get(XCore::DBG_LABEL)).addSym(SaveR10Label);
+      BuildMI(MBB, MBBI, dl, TII.get(XCore::PROLOG_LABEL)).addSym(SaveR10Label);
       MachineLocation CSDst(MachineLocation::VirtualFP, FPSpillOffset);
       MachineLocation CSSrc(XCore::R10);
       MMI->getFrameMoves().push_back(MachineMove(SaveR10Label, CSDst, CSSrc));
@@ -499,7 +465,7 @@ void XCoreRegisterInfo::emitPrologue(MachineFunction &MF) const {
     if (emitFrameMoves) {
       // Show FP is now valid.
       MCSymbol *FrameLabel = MMI->getContext().CreateTempSymbol();
-      BuildMI(MBB, MBBI, dl, TII.get(XCore::DBG_LABEL)).addSym(FrameLabel);
+      BuildMI(MBB, MBBI, dl, TII.get(XCore::PROLOG_LABEL)).addSym(FrameLabel);
       MachineLocation SPDst(FramePtr);
       MachineLocation SPSrc(MachineLocation::VirtualFP);
       MMI->getFrameMoves().push_back(MachineMove(FrameLabel, SPDst, SPSrc));
@@ -549,10 +515,7 @@ void XCoreRegisterInfo::emitEpilogue(MachineFunction &MF,
 
   if (!isU6 && !isImmU16(FrameSize)) {
     // FIXME could emit multiple instructions.
-    std::string msg;
-    raw_string_ostream Msg(msg);
-    Msg << "emitEpilogue Frame size too big: " << FrameSize;
-    report_fatal_error(Msg.str());
+    report_fatal_error("emitEpilogue Frame size too big: " + Twine(FrameSize));
   }
 
   if (FrameSize) {