#include "llvm/CodeGen/SSARegMap.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineConstantPool.h"
+#include "llvm/CodeGen/MachineJumpTableInfo.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetFrameInfo.h"
#include "llvm/Instructions.h"
#include "llvm/Support/LeakDetector.h"
#include "llvm/Support/GraphWriter.h"
+#include "llvm/Config/config.h"
#include <fstream>
#include <iostream>
#include <sstream>
SSARegMapping = new SSARegMap();
MFInfo = 0;
FrameInfo = new MachineFrameInfo();
- ConstantPool = new MachineConstantPool();
+ ConstantPool = new MachineConstantPool(TM.getTargetData());
+ JumpTableInfo = new MachineJumpTableInfo(TM.getTargetData());
BasicBlocks.Parent = this;
}
delete MFInfo;
delete FrameInfo;
delete ConstantPool;
+ delete JumpTableInfo;
delete[] UsedPhysRegs;
}
// Print Frame Information
getFrameInfo()->print(*this, OS);
+
+ // Print JumpTable Information
+ getJumpTableInfo()->print(OS);
// Print Constant Pool
getConstantPool()->print(OS);
-
+
+ const MRegisterInfo *MRI = getTarget().getRegisterInfo();
+
+ if (livein_begin() != livein_end()) {
+ OS << "Live Ins:";
+ for (livein_iterator I = livein_begin(), E = livein_end(); I != E; ++I) {
+ if (MRI)
+ OS << " " << MRI->getName(I->first);
+ else
+ OS << " Reg #" << I->first;
+ }
+ OS << "\n";
+ }
+ if (liveout_begin() != liveout_end()) {
+ OS << "Live Outs:";
+ for (liveout_iterator I = liveout_begin(), E = liveout_end(); I != E; ++I)
+ if (MRI)
+ OS << " " << MRI->getName(*I);
+ else
+ OS << " Reg #" << *I;
+ OS << "\n";
+ }
+
for (const_iterator BB = begin(); BB != end(); ++BB)
BB->print(OS);
void MachineFunction::viewCFG() const
{
+#ifndef NDEBUG
std::string Filename = "/tmp/cfg." + getFunction()->getName() + ".dot";
std::cerr << "Writing '" << Filename << "'... ";
std::ofstream F(Filename.c_str());
F.close();
std::cerr << "\n";
+#ifdef HAVE_GRAPHVIZ
+ std::cerr << "Running 'Graphviz' program... " << std::flush;
+ if (system((LLVM_PATH_GRAPHVIZ " " + Filename).c_str())) {
+ std::cerr << "Error viewing graph: 'Graphviz' not in path?\n";
+ } else {
+ system(("rm " + Filename).c_str());
+ return;
+ }
+#endif // HAVE_GRAPHVIZ
+
+#ifdef HAVE_GV
std::cerr << "Running 'dot' program... " << std::flush;
if (system(("dot -Tps -Nfontname=Courier -Gsize=7.5,10 " + Filename
+ " > /tmp/cfg.tempgraph.ps").c_str())) {
system("gv /tmp/cfg.tempgraph.ps");
}
system(("rm " + Filename + " /tmp/cfg.tempgraph.ps").c_str());
+ return;
+#endif // HAVE_GV
+#endif // NDEBUG
+ std::cerr << "MachineFunction::viewCFG is only available in debug builds on "
+ << "systems with Graphviz or gv!\n";
+
+#ifndef NDEBUG
+ system(("rm " + Filename).c_str());
+#endif
}
void MachineFunction::viewCFGOnly() const
// MachineFrameInfo implementation
//===----------------------------------------------------------------------===//
-/// CreateStackObject - Create a stack object for a value of the specified type.
-///
-int MachineFrameInfo::CreateStackObject(const Type *Ty, const TargetData &TD) {
- return CreateStackObject((unsigned)TD.getTypeSize(Ty),
- TD.getTypeAlignment(Ty));
-}
-
-
void MachineFrameInfo::print(const MachineFunction &MF, std::ostream &OS) const{
int ValOffset = MF.getTarget().getFrameInfo()->getOffsetOfLocalArea();
for (unsigned i = 0, e = Objects.size(); i != e; ++i) {
const StackObject &SO = Objects[i];
- OS << " <fi #" << (int)(i-NumFixedObjects) << "> is ";
+ OS << " <fi #" << (int)(i-NumFixedObjects) << ">: ";
if (SO.Size == 0)
OS << "variable sized";
else
- OS << SO.Size << " byte" << (SO.Size != 1 ? "s" : " ");
+ OS << "size is " << SO.Size << " byte" << (SO.Size != 1 ? "s," : ",");
+ OS << " alignment is " << SO.Alignment << " byte"
+ << (SO.Alignment != 1 ? "s," : ",");
if (i < NumFixedObjects)
OS << " fixed";
}
+//===----------------------------------------------------------------------===//
+// MachineJumpTableInfo implementation
+//===----------------------------------------------------------------------===//
+
+/// getJumpTableIndex - Create a new jump table entry in the jump table info
+/// or return an existing one.
+///
+unsigned MachineJumpTableInfo::getJumpTableIndex(
+ std::vector<MachineBasicBlock*> &DestBBs) {
+ for (unsigned i = 0, e = JumpTables.size(); i != e; ++i)
+ if (JumpTables[i].MBBs == DestBBs)
+ return i;
+
+ JumpTables.push_back(MachineJumpTableEntry(DestBBs));
+ return JumpTables.size()-1;
+}
+
+
+void MachineJumpTableInfo::print(std::ostream &OS) const {
+ // FIXME: this is lame, maybe we could print out the MBB numbers or something
+ // like {1, 2, 4, 5, 3, 0}
+ for (unsigned i = 0, e = JumpTables.size(); i != e; ++i) {
+ OS << " <jt #" << i << "> has " << JumpTables[i].MBBs.size()
+ << " entries\n";
+ }
+}
+
+unsigned MachineJumpTableInfo::getEntrySize() const {
+ return TD->getPointerSize();
+}
+
+unsigned MachineJumpTableInfo::getAlignment() const {
+ return TD->getPointerAlignment();
+}
+
+void MachineJumpTableInfo::dump() const { print(std::cerr); }
+
+
//===----------------------------------------------------------------------===//
// MachineConstantPool implementation
//===----------------------------------------------------------------------===//
-void MachineConstantPool::print(std::ostream &OS) const {
+/// getConstantPoolIndex - Create a new entry in the constant pool or return
+/// an existing one. User must specify an alignment in bytes for the object.
+///
+unsigned MachineConstantPool::getConstantPoolIndex(Constant *C,
+ unsigned Alignment) {
+ assert(Alignment && "Alignment must be specified!");
+ if (Alignment > PoolAlignment) PoolAlignment = Alignment;
+
+ // Check to see if we already have this constant.
+ //
+ // FIXME, this could be made much more efficient for large constant pools.
+ unsigned AlignMask = (1 << Alignment)-1;
for (unsigned i = 0, e = Constants.size(); i != e; ++i)
- OS << " <cp #" << i << "> is" << *(Value*)Constants[i] << "\n";
+ if (Constants[i].Val == C && (Constants[i].Offset & AlignMask) == 0)
+ return i;
+
+ unsigned Offset = 0;
+ if (!Constants.empty()) {
+ Offset = Constants.back().Offset;
+ Offset += TD->getTypeSize(Constants.back().Val->getType());
+ Offset = (Offset+AlignMask)&~AlignMask;
+ }
+
+ Constants.push_back(MachineConstantPoolEntry(C, Offset));
+ return Constants.size()-1;
+}
+
+
+void MachineConstantPool::print(std::ostream &OS) const {
+ for (unsigned i = 0, e = Constants.size(); i != e; ++i) {
+ OS << " <cp #" << i << "> is" << *(Value*)Constants[i].Val;
+ OS << " , offset=" << Constants[i].Offset;
+ OS << "\n";
+ }
}
void MachineConstantPool::dump() const { print(std::cerr); }
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