#include "llvm/CodeGen/MachineFrameInfo.h"
#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"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/Support/raw_ostream.h"
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
//===----------------------------------------------------------------------===//
MBB->getParent()->DeleteMachineBasicBlock(MBB);
}
-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;
JumpTableInfo = 0;
getOrCreateJumpTableInfo(unsigned EntryKind) {
if (JumpTableInfo) return JumpTableInfo;
- JumpTableInfo = new (Allocator.Allocate<MachineJumpTableInfo>())
+ JumpTableInfo = new (Allocator)
MachineJumpTableInfo((MachineJumpTableInfo::JTEntryKind)EntryKind);
return JumpTableInfo;
}
}
MachineMemOperand *
-MachineFunction::getMachineMemOperand(const Value *v, unsigned f,
- int64_t o, uint64_t s,
- unsigned base_alignment) {
- return new (Allocator.Allocate<MachineMemOperand>())
- MachineMemOperand(v, f, o, s, base_alignment);
+MachineFunction::getMachineMemOperand(MachinePointerInfo PtrInfo, unsigned f,
+ uint64_t s, unsigned base_alignment,
+ const MDNode *TBAAInfo) {
+ return new (Allocator) MachineMemOperand(PtrInfo, f, s, base_alignment,
+ TBAAInfo);
}
MachineMemOperand *
MachineFunction::getMachineMemOperand(const MachineMemOperand *MMO,
int64_t Offset, uint64_t Size) {
- return new (Allocator.Allocate<MachineMemOperand>())
- MachineMemOperand(MMO->getValue(), MMO->getFlags(),
- int64_t(uint64_t(MMO->getOffset()) +
- uint64_t(Offset)),
- Size, MMO->getBaseAlignment());
+ return new (Allocator)
+ MachineMemOperand(MachinePointerInfo(MMO->getValue(),
+ MMO->getOffset()+Offset),
+ MMO->getFlags(), Size,
+ MMO->getBaseAlignment(), 0);
}
MachineInstr::mmo_iterator
else {
// Clone the MMO and unset the store flag.
MachineMemOperand *JustLoad =
- getMachineMemOperand((*I)->getValue(),
+ getMachineMemOperand((*I)->getPointerInfo(),
(*I)->getFlags() & ~MachineMemOperand::MOStore,
- (*I)->getOffset(), (*I)->getSize(),
- (*I)->getBaseAlignment());
+ (*I)->getSize(), (*I)->getBaseAlignment(),
+ (*I)->getTBAAInfo());
Result[Index] = JustLoad;
}
++Index;
else {
// Clone the MMO and unset the load flag.
MachineMemOperand *JustStore =
- getMachineMemOperand((*I)->getValue(),
+ getMachineMemOperand((*I)->getPointerInfo(),
(*I)->getFlags() & ~MachineMemOperand::MOLoad,
- (*I)->getOffset(), (*I)->getSize(),
- (*I)->getBaseAlignment());
+ (*I)->getSize(), (*I)->getBaseAlignment(),
+ (*I)->getTBAAInfo());
Result[Index] = JustStore;
}
++Index;
#ifndef NDEBUG
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
}
#ifndef NDEBUG
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
}
/// create a corresponding virtual register for it.
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.
/// If isLinkerPrivate is specified, an 'l' label is returned, otherwise a
/// normal 'L' label is returned.
/// index with a negative value.
///
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;
}
case MachineJumpTableInfo::EK_LabelDifference32:
case MachineJumpTableInfo::EK_Custom32:
return 4;
+ case MachineJumpTableInfo::EK_Inline:
+ return 0;
}
assert(0 && "Unknown jump table encoding!");
return ~0;
case MachineJumpTableInfo::EK_LabelDifference32:
case MachineJumpTableInfo::EK_Custom32:
return TD.getABIIntegerTypeAlignment(32);
+ case MachineJumpTableInfo::EK_Inline:
+ return 1;
}
assert(0 && "Unknown jump table encoding!");
return ~0;
}
-/// getJumpTableIndex - Create a new jump table entry in the jump table info
-/// or return an existing one.
+/// createJumpTableIndex - Create a new jump table entry in the jump table info.
///
-unsigned MachineJumpTableInfo::getJumpTableIndex(
+unsigned MachineJumpTableInfo::createJumpTableIndex(
const std::vector<MachineBasicBlock*> &DestBBs) {
assert(!DestBBs.empty() && "Cannot create an empty jump table!");
JumpTables.push_back(MachineJumpTableEntry(DestBBs));
return JumpTables.size()-1;
}
-
/// ReplaceMBBInJumpTables - If Old is the target of any jump tables, update
/// the jump tables to branch to New instead.
bool MachineJumpTableInfo::ReplaceMBBInJumpTables(MachineBasicBlock *Old,
/// 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.
if (A == B) return true;
// 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;
for (unsigned i = 0, e = AV->getType()->getNumElements(); i != e; ++i)
/// an existing one. User must specify the log2 of the minimum required
/// alignment for the object.
///
-unsigned MachineConstantPool::getConstantPoolIndex(Constant *C,
+unsigned MachineConstantPool::getConstantPoolIndex(const Constant *C,
unsigned Alignment) {
assert(Alignment && "Alignment must be specified!");
if (Alignment > PoolAlignment) PoolAlignment = Alignment;
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