#include "llvm/DerivedTypes.h"
#include "llvm/Function.h"
#include "llvm/Instructions.h"
-#include "llvm/ADT/STLExtras.h"
#include "llvm/Config/config.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineJumpTableInfo.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/Passes.h"
+#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/Analysis/DebugInfo.h"
+#include "llvm/Support/Debug.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetLowering.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetFrameInfo.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/GraphWriter.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
return new Printer(OS, Banner);
}
-//===---------------------------------------------------------------------===//
+//===----------------------------------------------------------------------===//
// MachineFunction implementation
-//===---------------------------------------------------------------------===//
+//===----------------------------------------------------------------------===//
// Out of line virtual method.
MachineFunctionInfo::~MachineFunctionInfo() {}
MBB->getParent()->DeleteMachineBasicBlock(MBB);
}
-MachineFunction::MachineFunction(Function *F,
- const TargetMachine &TM)
+MachineFunction::MachineFunction(Function *F, const TargetMachine &TM,
+ unsigned FunctionNum)
: Fn(F), Target(TM) {
if (TM.getRegisterInfo())
RegInfo = new (Allocator.Allocate<MachineRegisterInfo>())
MFInfo = 0;
FrameInfo = new (Allocator.Allocate<MachineFrameInfo>())
MachineFrameInfo(*TM.getFrameInfo());
+ if (Fn->hasFnAttr(Attribute::StackAlignment))
+ FrameInfo->setMaxAlignment(Attribute::getStackAlignmentFromAttrs(
+ Fn->getAttributes().getFnAttributes()));
ConstantPool = new (Allocator.Allocate<MachineConstantPool>())
MachineConstantPool(TM.getTargetData());
Alignment = TM.getTargetLowering()->getFunctionAlignment(F);
-
- // Set up jump table.
- const TargetData &TD = *TM.getTargetData();
- bool IsPic = TM.getRelocationModel() == Reloc::PIC_;
- unsigned EntrySize = IsPic ? 4 : TD.getPointerSize();
- unsigned TyAlignment = IsPic ?
- TD.getABITypeAlignment(Type::getInt32Ty(F->getContext()))
- : TD.getPointerABIAlignment();
- JumpTableInfo = new (Allocator.Allocate<MachineJumpTableInfo>())
- MachineJumpTableInfo(EntrySize, TyAlignment);
+ FunctionNumber = FunctionNum;
+ JumpTableInfo = 0;
}
MachineFunction::~MachineFunction() {
}
FrameInfo->~MachineFrameInfo(); Allocator.Deallocate(FrameInfo);
ConstantPool->~MachineConstantPool(); Allocator.Deallocate(ConstantPool);
- JumpTableInfo->~MachineJumpTableInfo(); Allocator.Deallocate(JumpTableInfo);
+
+ if (JumpTableInfo) {
+ JumpTableInfo->~MachineJumpTableInfo();
+ Allocator.Deallocate(JumpTableInfo);
+ }
}
+/// getOrCreateJumpTableInfo - Get the JumpTableInfo for this function, if it
+/// does already exist, allocate one.
+MachineJumpTableInfo *MachineFunction::
+getOrCreateJumpTableInfo(unsigned EntryKind) {
+ if (JumpTableInfo) return JumpTableInfo;
+
+ JumpTableInfo = new (Allocator.Allocate<MachineJumpTableInfo>())
+ MachineJumpTableInfo((MachineJumpTableInfo::JTEntryKind)EntryKind);
+ return JumpTableInfo;
+}
/// RenumberBlocks - This discards all of the MachineBasicBlock numbers and
/// recomputes them. This guarantees that the MBB numbers are sequential,
}
/// CloneMachineInstr - Create a new MachineInstr which is a copy of the
-/// 'Orig' instruction, identical in all ways except the the instruction
+/// 'Orig' instruction, identical in all ways except the instruction
/// has no parent, prev, or next.
///
MachineInstr *
}
void MachineFunction::dump() const {
- print(errs());
+ print(dbgs());
}
void MachineFunction::print(raw_ostream &OS) const {
FrameInfo->print(*this, OS);
// Print JumpTable Information
- JumpTableInfo->print(OS);
+ if (JumpTableInfo)
+ JumpTableInfo->print(OS);
// Print Constant Pool
ConstantPool->print(OS);
return VReg;
}
-/// getDebugLocTuple - Get the DebugLocTuple for a given DebugLoc object.
-DebugLocTuple MachineFunction::getDebugLocTuple(DebugLoc DL) const {
+/// 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 DebugLocInfo.DebugLocations[Idx];
+ 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.
+MCSymbol *MachineFunction::getJTISymbol(unsigned JTI, MCContext &Ctx,
+ bool isLinkerPrivate) const {
+ assert(JumpTableInfo && "No jump tables");
+
+ assert(JTI < JumpTableInfo->getJumpTables().size() && "Invalid JTI!");
+ const MCAsmInfo &MAI = *getTarget().getMCAsmInfo();
+
+ const char *Prefix = isLinkerPrivate ? MAI.getLinkerPrivateGlobalPrefix() :
+ MAI.getPrivateGlobalPrefix();
+ SmallString<60> Name;
+ raw_svector_ostream(Name)
+ << Prefix << "JTI" << getFunctionNumber() << '_' << JTI;
+ return Ctx.GetOrCreateSymbol(Name.str());
+}
+
+
//===----------------------------------------------------------------------===//
// MachineFrameInfo implementation
//===----------------------------------------------------------------------===//
}
void MachineFrameInfo::dump(const MachineFunction &MF) const {
- print(MF, errs());
+ print(MF, dbgs());
}
//===----------------------------------------------------------------------===//
// MachineJumpTableInfo implementation
//===----------------------------------------------------------------------===//
+/// getEntrySize - Return the size of each entry in the jump table.
+unsigned MachineJumpTableInfo::getEntrySize(const TargetData &TD) const {
+ // The size of a jump table entry is 4 bytes unless the entry is just the
+ // address of a block, in which case it is the pointer size.
+ switch (getEntryKind()) {
+ case MachineJumpTableInfo::EK_BlockAddress:
+ return TD.getPointerSize();
+ case MachineJumpTableInfo::EK_GPRel32BlockAddress:
+ case MachineJumpTableInfo::EK_LabelDifference32:
+ case MachineJumpTableInfo::EK_Custom32:
+ return 4;
+ }
+ assert(0 && "Unknown jump table encoding!");
+ return ~0;
+}
+
+/// getEntryAlignment - Return the alignment of each entry in the jump table.
+unsigned MachineJumpTableInfo::getEntryAlignment(const TargetData &TD) const {
+ // The alignment of a jump table entry is the alignment of int32 unless the
+ // entry is just the address of a block, in which case it is the pointer
+ // alignment.
+ switch (getEntryKind()) {
+ case MachineJumpTableInfo::EK_BlockAddress:
+ return TD.getPointerABIAlignment();
+ case MachineJumpTableInfo::EK_GPRel32BlockAddress:
+ case MachineJumpTableInfo::EK_LabelDifference32:
+ case MachineJumpTableInfo::EK_Custom32:
+ return TD.getABIIntegerTypeAlignment(32);
+ }
+ 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.
///
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,
- MachineBasicBlock *New) {
+bool MachineJumpTableInfo::ReplaceMBBInJumpTables(MachineBasicBlock *Old,
+ MachineBasicBlock *New) {
assert(Old != New && "Not making a change?");
bool MadeChange = false;
for (size_t i = 0, e = JumpTables.size(); i != e; ++i)
/// ReplaceMBBInJumpTable - If Old is a target of the jump tables, update
/// the jump table to branch to New instead.
-bool
-MachineJumpTableInfo::ReplaceMBBInJumpTable(unsigned Idx,
- MachineBasicBlock *Old,
- MachineBasicBlock *New) {
+bool MachineJumpTableInfo::ReplaceMBBInJumpTable(unsigned Idx,
+ MachineBasicBlock *Old,
+ MachineBasicBlock *New) {
assert(Old != New && "Not making a change?");
bool MadeChange = false;
MachineJumpTableEntry &JTE = JumpTables[Idx];
OS << '\n';
}
-void MachineJumpTableInfo::dump() const { print(errs()); }
+void MachineJumpTableInfo::dump() const { print(dbgs()); }
//===----------------------------------------------------------------------===//
}
}
-void MachineConstantPool::dump() const { print(errs()); }
+void MachineConstantPool::dump() const { print(dbgs()); }
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