[ScalarOpts] Remove dead code.

[oota-llvm.git] / lib / Target / Mips / MipsMachineFunction.cpp

diff --git a/lib/Target/Mips/MipsMachineFunction.cpp b/lib/Target/Mips/MipsMachineFunction.cpp
index c32f56c0ddcfc6192847f036985599647299dd38..839760cc8a458182744abc89f1ef8befae59a324 100644 (file)
--- a/lib/Target/Mips/MipsMachineFunction.cpp
+++ b/lib/Target/Mips/MipsMachineFunction.cpp
@@ -7,14 +7,16 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "MipsMachineFunction.h"
 #include "MCTargetDesc/MipsBaseInfo.h"
 #include "MipsInstrInfo.h"
+#include "MipsMachineFunction.h"
 #include "MipsSubtarget.h"
+#include "MipsTargetMachine.h"
 #include "llvm/CodeGen/MachineInstrBuilder.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/IR/Function.h"
 #include "llvm/Support/CommandLine.h"
+#include "llvm/Support/raw_ostream.h"
 
 using namespace llvm;
 
@@ -22,52 +24,7 @@ static cl::opt<bool>
 FixGlobalBaseReg("mips-fix-global-base-reg", cl::Hidden, cl::init(true),
                  cl::desc("Always use $gp as the global base register."));
 
-// class MipsCallEntry.
-MipsCallEntry::MipsCallEntry(const StringRef &N) {
-#ifndef NDEBUG
-  Name = N;
-  Val = 0;
-#endif
-}
-
-MipsCallEntry::MipsCallEntry(const GlobalValue *V) {
-#ifndef NDEBUG
-  Val = V;
-#endif
-}
-
-bool MipsCallEntry::isConstant(const MachineFrameInfo *) const {
-  return false;
-}
-
-bool MipsCallEntry::isAliased(const MachineFrameInfo *) const {
-  return false;
-}
-
-bool MipsCallEntry::mayAlias(const MachineFrameInfo *) const {
-  return false;
-}
-
-void MipsCallEntry::printCustom(raw_ostream &O) const {
-  O << "MipsCallEntry: ";
-#ifndef NDEBUG
-  if (Val)
-    O << Val->getName();
-  else
-    O << Name;
-#endif
-}
-
-MipsFunctionInfo::~MipsFunctionInfo() {
-  for (StringMap<const MipsCallEntry *>::iterator
-       I = ExternalCallEntries.begin(), E = ExternalCallEntries.end(); I != E;
-       ++I)
-    delete I->getValue();
-
-  for (ValueMap<const GlobalValue *, const MipsCallEntry *>::iterator
-       I = GlobalCallEntries.begin(), E = GlobalCallEntries.end(); I != E; ++I)
-    delete I->second;
-}
+MipsFunctionInfo::~MipsFunctionInfo() {}
 
 bool MipsFunctionInfo::globalBaseRegSet() const {
   return GlobalBaseReg;
@@ -78,15 +35,19 @@ unsigned MipsFunctionInfo::getGlobalBaseReg() {
   if (GlobalBaseReg)
     return GlobalBaseReg;
 
-  const MipsSubtarget &ST = MF.getTarget().getSubtarget<MipsSubtarget>();
-
-  const TargetRegisterClass *RC;
-  if (ST.inMips16Mode())
-    RC=(const TargetRegisterClass*)&Mips::CPU16RegsRegClass;
-  else
-    RC = ST.isABI_N64() ?
-      (const TargetRegisterClass*)&Mips::GPR64RegClass :
-      (const TargetRegisterClass*)&Mips::GPR32RegClass;
+  MipsSubtarget const &STI =
+      static_cast<const MipsSubtarget &>(MF.getSubtarget());
+
+  const TargetRegisterClass *RC =
+      STI.inMips16Mode()
+          ? &Mips::CPU16RegsRegClass
+          : STI.inMicroMipsMode()
+                ? &Mips::GPRMM16RegClass
+                : static_cast<const MipsTargetMachine &>(MF.getTarget())
+                          .getABI()
+                          .IsN64()
+                      ? &Mips::GPR64RegClass
+                      : &Mips::GPR32RegClass;
   return GlobalBaseReg = MF.getRegInfo().createVirtualRegister(RC);
 }
 
@@ -98,16 +59,16 @@ unsigned MipsFunctionInfo::getMips16SPAliasReg() {
   if (Mips16SPAliasReg)
     return Mips16SPAliasReg;
 
-  const TargetRegisterClass *RC;
-  RC=(const TargetRegisterClass*)&Mips::CPU16RegsRegClass;
+  const TargetRegisterClass *RC = &Mips::CPU16RegsRegClass;
   return Mips16SPAliasReg = MF.getRegInfo().createVirtualRegister(RC);
 }
 
 void MipsFunctionInfo::createEhDataRegsFI() {
   for (int I = 0; I < 4; ++I) {
-    const MipsSubtarget &ST = MF.getTarget().getSubtarget<MipsSubtarget>();
-    const TargetRegisterClass *RC = ST.isABI_N64() ?
-        &Mips::GPR64RegClass : &Mips::GPR32RegClass;
+    const TargetRegisterClass *RC =
+        static_cast<const MipsTargetMachine &>(MF.getTarget()).getABI().IsN64()
+            ? &Mips::GPR64RegClass
+            : &Mips::GPR32RegClass;
 
     EhDataRegFI[I] = MF.getFrameInfo()->CreateStackObject(RC->getSize(),
         RC->getAlignment(), false);
@@ -119,26 +80,20 @@ bool MipsFunctionInfo::isEhDataRegFI(int FI) const {
                         || FI == EhDataRegFI[2] || FI == EhDataRegFI[3]);
 }
 
-MachinePointerInfo MipsFunctionInfo::callPtrInfo(const StringRef &Name) {
-  StringMap<const MipsCallEntry *>::const_iterator I;
-  I = ExternalCallEntries.find(Name);
-
-  if (I != ExternalCallEntries.end())
-    return MachinePointerInfo(I->getValue());
-
-  const MipsCallEntry *E = ExternalCallEntries[Name] = new MipsCallEntry(Name);
-  return MachinePointerInfo(E);
+MachinePointerInfo MipsFunctionInfo::callPtrInfo(const char *ES) {
+  return MachinePointerInfo(MF.getPSVManager().getExternalSymbolCallEntry(ES));
 }
 
-MachinePointerInfo MipsFunctionInfo::callPtrInfo(const GlobalValue *Val) {
-  ValueMap<const GlobalValue *, const MipsCallEntry *>::const_iterator I;
-  I = GlobalCallEntries.find(Val);
-
-  if (I != GlobalCallEntries.end())
-    return MachinePointerInfo(I->second);
+MachinePointerInfo MipsFunctionInfo::callPtrInfo(const GlobalValue *GV) {
+  return MachinePointerInfo(MF.getPSVManager().getGlobalValueCallEntry(GV));
+}
 
-  const MipsCallEntry *E = GlobalCallEntries[Val] = new MipsCallEntry(Val);
-  return MachinePointerInfo(E);
+int MipsFunctionInfo::getMoveF64ViaSpillFI(const TargetRegisterClass *RC) {
+  if (MoveF64ViaSpillFI == -1) {
+    MoveF64ViaSpillFI = MF.getFrameInfo()->CreateStackObject(
+        RC->getSize(), RC->getAlignment(), false);
+  }
+  return MoveF64ViaSpillFI;
 }
 
 void MipsFunctionInfo::anchor() { }