Changeset 319 for clamav/trunk/libclamav/c++/llvm/lib/CodeGen/MachineFunction.cpp

Timestamp:

Apr 19, 2011, 11:12:07 PM (14 years ago)

Author:

Yuri Dario

Message:

clamav: update trunk to 0.97.

Location:

clamav/trunk

Files:

• . (modified) (1 prop)
• libclamav/c++/llvm/lib/CodeGen/MachineFunction.cpp (modified) (15 diffs)

clamav/trunk/libclamav/c++/llvm/lib/CodeGen/MachineFunction.cpp ¶

@@ -24 +24 @@
 #include "llvm/CodeGen/MachineInstr.h"
 #include "llvm/CodeGen/MachineJumpTableInfo.h"
+#include "llvm/CodeGen/MachineModuleInfo.h"
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 #include "llvm/CodeGen/Passes.h"
@@ -40 +41 @@
 using namespace llvm;
 
-namespace {
-  struct Printer : public MachineFunctionPass {
-    static char ID;
-
-    raw_ostream &OS;
-    const std::string Banner;
-
-    Printer(raw_ostream &os, const std::string &banner) 
-      : MachineFunctionPass(&ID), OS(os), Banner(banner) {}
-
-    const char *getPassName() const { return "MachineFunction Printer"; }
-
-    virtual void getAnalysisUsage(AnalysisUsage &AU) const {
-      AU.setPreservesAll();
-      MachineFunctionPass::getAnalysisUsage(AU);
-    }
-
-    bool runOnMachineFunction(MachineFunction &MF) {
-      OS << "# " << Banner << ":\n";
-      MF.print(OS);
-      return false;
-    }
-  };
-  char Printer::ID = 0;
-}
-
-/// Returns a newly-created MachineFunction Printer pass. The default banner is
-/// empty.
-///
-FunctionPass *llvm::createMachineFunctionPrinterPass(raw_ostream &OS,
-                                                     const std::string &Banner){
-  return new Printer(OS, Banner);
-}
-
 //===----------------------------------------------------------------------===//
 // MachineFunction implementation
@@ -85 +52 @@
 }
 
-MachineFunction::MachineFunction(Function *F, const TargetMachine &TM,
-                                 unsigned FunctionNum)
-  : Fn(F), Target(TM) {
+MachineFunction::MachineFunction(const Function *F, const TargetMachine &TM,
+                                 unsigned FunctionNum, MachineModuleInfo &mmi)
+  : Fn(F), Target(TM), Ctx(mmi.getContext()), MMI(mmi) {
   if (TM.getRegisterInfo())
-    RegInfo = new (Allocator.Allocate<MachineRegisterInfo>())
-                  MachineRegisterInfo(*TM.getRegisterInfo());
+    RegInfo = new (Allocator) MachineRegisterInfo(*TM.getRegisterInfo());
   else
     RegInfo = 0;
   MFInfo = 0;
-  FrameInfo = new (Allocator.Allocate<MachineFrameInfo>())
-                  MachineFrameInfo(*TM.getFrameInfo());
+  FrameInfo = new (Allocator) MachineFrameInfo(*TM.getFrameInfo());
   if (Fn->hasFnAttr(Attribute::StackAlignment))
     FrameInfo->setMaxAlignment(Attribute::getStackAlignmentFromAttrs(
         Fn->getAttributes().getFnAttributes()));
-  ConstantPool = new (Allocator.Allocate<MachineConstantPool>())
-                     MachineConstantPool(TM.getTargetData());
+  ConstantPool = new (Allocator) MachineConstantPool(TM.getTargetData());
   Alignment = TM.getTargetLowering()->getFunctionAlignment(F);
   FunctionNumber = FunctionNum;
@@ -133 +97 @@
   if (JumpTableInfo) return JumpTableInfo;
   
-  JumpTableInfo = new (Allocator.Allocate<MachineJumpTableInfo>())
+  JumpTableInfo = new (Allocator)
     MachineJumpTableInfo((MachineJumpTableInfo::JTEntryKind)EntryKind);
   return JumpTableInfo;
@@ -230 +194 @@
                                       int64_t o, uint64_t s,
                                       unsigned base_alignment) {
-  return new (Allocator.Allocate<MachineMemOperand>())
-             MachineMemOperand(v, f, o, s, base_alignment);
+  return new (Allocator) MachineMemOperand(v, f, o, s, base_alignment);
 }
 
@@ -237 +200 @@
 MachineFunction::getMachineMemOperand(const MachineMemOperand *MMO,
                                       int64_t Offset, uint64_t Size) {
-  return new (Allocator.Allocate<MachineMemOperand>())
+  return new (Allocator)
              MachineMemOperand(MMO->getValue(), MMO->getFlags(),
                                int64_t(uint64_t(MMO->getOffset()) +
@@ -416 +379 @@
   ViewGraph(this, "mf" + getFunction()->getNameStr());
 #else
-  errs() << "SelectionDAG::viewGraph is only available in debug builds on "
+  errs() << "MachineFunction::viewCFG is only available in debug builds on "
          << "systems with Graphviz or gv!\n";
 #endif // NDEBUG
@@ -426 +389 @@
   ViewGraph(this, "mf" + getFunction()->getNameStr(), true);
 #else
-  errs() << "SelectionDAG::viewGraph is only available in debug builds on "
+  errs() << "MachineFunction::viewCFGOnly is only available in debug builds on "
          << "systems with Graphviz or gv!\n";
 #endif // NDEBUG
@@ -435 +398 @@
 unsigned MachineFunction::addLiveIn(unsigned PReg,
                                     const TargetRegisterClass *RC) {
-  assert(RC->contains(PReg) && "Not the correct regclass!");
-  unsigned VReg = getRegInfo().createVirtualRegister(RC);
-  getRegInfo().addLiveIn(PReg, VReg);
+  MachineRegisterInfo &MRI = getRegInfo();
+  unsigned VReg = MRI.getLiveInVirtReg(PReg);
+  if (VReg) {
+    assert(MRI.getRegClass(VReg) == RC && "Register class mismatch!");
+    return VReg;
+  }
+  VReg = MRI.createVirtualRegister(RC);
+  MRI.addLiveIn(PReg, VReg);
   return VReg;
 }
-
-/// getDILocation - Get the DILocation for a given DebugLoc object.
-DILocation MachineFunction::getDILocation(DebugLoc DL) const {
-  unsigned Idx = DL.getIndex();
-  assert(Idx < DebugLocInfo.DebugLocations.size() &&
-         "Invalid index into debug locations!");
-  return DILocation(DebugLocInfo.DebugLocations[Idx]);
-}
-
 
 /// getJTISymbol - Return the MCSymbol for the specified non-empty jump table.
@@ -479 +438 @@
 ///
 int MachineFrameInfo::CreateFixedObject(uint64_t Size, int64_t SPOffset,
-                                        bool Immutable, bool isSS) {
+                                        bool Immutable) {
   assert(Size != 0 && "Cannot allocate zero size fixed stack objects!");
-  Objects.insert(Objects.begin(), StackObject(Size, 1, SPOffset, Immutable,
-                                              isSS));
+  // The alignment of the frame index can be determined from its offset from
+  // the incoming frame position.  If the frame object is at offset 32 and
+  // the stack is guaranteed to be 16-byte aligned, then we know that the
+  // object is 16-byte aligned.
+  unsigned StackAlign = TFI.getStackAlignment();
+  unsigned Align = MinAlign(SPOffset, StackAlign);
+  Objects.insert(Objects.begin(), StackObject(Size, Align, SPOffset, Immutable,
+                                              /*isSS*/false, false));
   return -++NumFixedObjects;
 }
@@ -573 +538 @@
   case MachineJumpTableInfo::EK_Custom32:
     return 4;
+  case MachineJumpTableInfo::EK_Inline:
+    return 0;
   }
   assert(0 && "Unknown jump table encoding!");
@@ -590 +557 @@
   case MachineJumpTableInfo::EK_Custom32:
     return TD.getABIIntegerTypeAlignment(32);
+  case MachineJumpTableInfo::EK_Inline:
+    return 1;
   }
   assert(0 && "Unknown jump table encoding!");
@@ -673 +642 @@
 /// CanShareConstantPoolEntry - Test whether the given two constants
 /// can be allocated the same constant pool entry.
-static bool CanShareConstantPoolEntry(Constant *A, Constant *B,
+static bool CanShareConstantPoolEntry(const Constant *A, const Constant *B,
                                       const TargetData *TD) {
   // Handle the trivial case quickly.
@@ -688 +657 @@
   // If a floating-point value and an integer value have the same encoding,
   // they can share a constant-pool entry.
-  if (ConstantFP *AFP = dyn_cast<ConstantFP>(A))
-    if (ConstantInt *BI = dyn_cast<ConstantInt>(B))
+  if (const ConstantFP *AFP = dyn_cast<ConstantFP>(A))
+    if (const ConstantInt *BI = dyn_cast<ConstantInt>(B))
       return AFP->getValueAPF().bitcastToAPInt() == BI->getValue();
-  if (ConstantFP *BFP = dyn_cast<ConstantFP>(B))
-    if (ConstantInt *AI = dyn_cast<ConstantInt>(A))
+  if (const ConstantFP *BFP = dyn_cast<ConstantFP>(B))
+    if (const ConstantInt *AI = dyn_cast<ConstantInt>(A))
       return BFP->getValueAPF().bitcastToAPInt() == AI->getValue();
 
   // Two vectors can share an entry if each pair of corresponding
   // elements could.
-  if (ConstantVector *AV = dyn_cast<ConstantVector>(A))
-    if (ConstantVector *BV = dyn_cast<ConstantVector>(B)) {
+  if (const ConstantVector *AV = dyn_cast<ConstantVector>(A))
+    if (const ConstantVector *BV = dyn_cast<ConstantVector>(B)) {
       if (AV->getType()->getNumElements() != BV->getType()->getNumElements())
         return false;
@@ -717 +686 @@
 /// alignment for the object.
 ///
-unsigned MachineConstantPool::getConstantPoolIndex(Constant *C, 
+unsigned MachineConstantPool::getConstantPoolIndex(const Constant *C, 
                                                    unsigned Alignment) {
   assert(Alignment && "Alignment must be specified!");