//
//===----------------------------------------------------------------------===//
+#include "llvm/DerivedTypes.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/SSARegMap.h"
#include "llvm/CodeGen/MachineJumpTableInfo.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/Target/TargetData.h"
+#include "llvm/Target/TargetLowering.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetFrameInfo.h"
#include "llvm/Function.h"
#include "llvm/Instructions.h"
-#include "llvm/Support/LeakDetector.h"
-#include "llvm/Support/GraphWriter.h"
#include "llvm/Support/Compiler.h"
+#include "llvm/Support/GraphWriter.h"
+#include "llvm/Support/LeakDetector.h"
+#include "llvm/ADT/STLExtras.h"
#include "llvm/Config/config.h"
#include <fstream>
-#include <iostream>
#include <sstream>
-
using namespace llvm;
static AnnotationID MF_AID(
MFInfo = 0;
FrameInfo = new MachineFrameInfo();
ConstantPool = new MachineConstantPool(TM.getTargetData());
- JumpTableInfo = new MachineJumpTableInfo(TM.getTargetData());
+
+ // Set up jump table.
+ const TargetData &TD = *TM.getTargetData();
+ bool IsPic = TM.getRelocationModel() == Reloc::PIC_;
+ unsigned EntrySize = IsPic ? 4 : TD.getPointerSize();
+ unsigned Alignment = IsPic ? TD.getABITypeAlignment(Type::Int32Ty)
+ : TD.getPointerABIAlignment();
+ JumpTableInfo = new MachineJumpTableInfo(EntrySize, Alignment);
+
BasicBlocks.Parent = this;
}
delete[] UsedPhysRegs;
}
-void MachineFunction::dump() const { print(std::cerr); }
+
+/// RenumberBlocks - This discards all of the MachineBasicBlock numbers and
+/// recomputes them. This guarantees that the MBB numbers are sequential,
+/// dense, and match the ordering of the blocks within the function. If a
+/// specific MachineBasicBlock is specified, only that block and those after
+/// it are renumbered.
+void MachineFunction::RenumberBlocks(MachineBasicBlock *MBB) {
+ if (empty()) { MBBNumbering.clear(); return; }
+ MachineFunction::iterator MBBI, E = end();
+ if (MBB == 0)
+ MBBI = begin();
+ else
+ MBBI = MBB;
+
+ // Figure out the block number this should have.
+ unsigned BlockNo = 0;
+ if (MBBI != begin())
+ BlockNo = prior(MBBI)->getNumber()+1;
+
+ for (; MBBI != E; ++MBBI, ++BlockNo) {
+ if (MBBI->getNumber() != (int)BlockNo) {
+ // Remove use of the old number.
+ if (MBBI->getNumber() != -1) {
+ assert(MBBNumbering[MBBI->getNumber()] == &*MBBI &&
+ "MBB number mismatch!");
+ MBBNumbering[MBBI->getNumber()] = 0;
+ }
+
+ // If BlockNo is already taken, set that block's number to -1.
+ if (MBBNumbering[BlockNo])
+ MBBNumbering[BlockNo]->setNumber(-1);
+
+ MBBNumbering[BlockNo] = MBBI;
+ MBBI->setNumber(BlockNo);
+ }
+ }
+
+ // Okay, all the blocks are renumbered. If we have compactified the block
+ // numbering, shrink MBBNumbering now.
+ assert(BlockNo <= MBBNumbering.size() && "Mismatch!");
+ MBBNumbering.resize(BlockNo);
+}
+
+
+void MachineFunction::dump() const { print(*cerr.stream()); }
void MachineFunction::print(std::ostream &OS) const {
OS << "# Machine code for " << Fn->getName () << "():\n";
#ifndef NDEBUG
ViewGraph(this, "mf" + getFunction()->getName());
#else
- std::cerr << "SelectionDAG::viewGraph is only available in debug builds on "
- << "systems with Graphviz or gv!\n";
+ cerr << "SelectionDAG::viewGraph is only available in debug builds on "
+ << "systems with Graphviz or gv!\n";
#endif // NDEBUG
}
}
void MachineFrameInfo::dump(const MachineFunction &MF) const {
- print(MF, std::cerr);
+ print(MF, *cerr.stream());
}
/// or return an existing one.
///
unsigned MachineJumpTableInfo::getJumpTableIndex(
- std::vector<MachineBasicBlock*> &DestBBs) {
+ const std::vector<MachineBasicBlock*> &DestBBs) {
+ assert(!DestBBs.empty() && "Cannot create an empty jump table!");
for (unsigned i = 0, e = JumpTables.size(); i != e; ++i)
if (JumpTables[i].MBBs == DestBBs)
return i;
}
}
-unsigned MachineJumpTableInfo::getEntrySize() const {
- return TD->getPointerSize();
-}
-
-unsigned MachineJumpTableInfo::getAlignment() const {
- return TD->getPointerAlignment();
-}
-
-void MachineJumpTableInfo::dump() const { print(std::cerr); }
+void MachineJumpTableInfo::dump() const { print(*cerr.stream()); }
//===----------------------------------------------------------------------===//
// MachineConstantPool implementation
//===----------------------------------------------------------------------===//
+const Type *MachineConstantPoolEntry::getType() const {
+ if (isMachineConstantPoolEntry())
+ return Val.MachineCPVal->getType();
+ return Val.ConstVal->getType();
+}
+
MachineConstantPool::~MachineConstantPool() {
for (unsigned i = 0, e = Constants.size(); i != e; ++i)
if (Constants[i].isMachineConstantPoolEntry())
unsigned Offset = 0;
if (!Constants.empty()) {
- Offset = Constants.back().Offset;
- Offset += TD->getTypeSize(Constants.back().Val.ConstVal->getType());
+ Offset = Constants.back().getOffset();
+ Offset += TD->getTypeSize(Constants.back().getType());
Offset = (Offset+AlignMask)&~AlignMask;
}
unsigned Offset = 0;
if (!Constants.empty()) {
- Offset = Constants.back().Offset;
- Offset += TD->getTypeSize(Constants.back().Val.MachineCPVal->getType());
+ Offset = Constants.back().getOffset();
+ Offset += TD->getTypeSize(Constants.back().getType());
Offset = (Offset+AlignMask)&~AlignMask;
}
Constants[i].Val.MachineCPVal->print(OS);
else
OS << *(Value*)Constants[i].Val.ConstVal;
- OS << " , offset=" << Constants[i].Offset;
+ OS << " , offset=" << Constants[i].getOffset();
OS << "\n";
}
}
-void MachineConstantPool::dump() const { print(std::cerr); }
+void MachineConstantPool::dump() const { print(*cerr.stream()); }