#include "llvm/PassManager.h"
#include "llvm/Transforms/Scalar.h"
#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/CodeGen/MachineFunctionInfo.h"
#include "llvm/CodeGen/PreSelection.h"
#include "llvm/CodeGen/StackSlots.h"
#include "llvm/CodeGen/PeepholeOpts.h"
#include "llvm/CodeGen/RegisterAllocation.h"
#include "llvm/CodeGen/MachineCodeForInstruction.h"
#include "llvm/Reoptimizer/Mapping/MappingInfo.h"
-#include "llvm/Reoptimizer/Mapping/FInfo.h"
#include "Support/CommandLine.h"
-using std::cerr;
+#include "llvm/Assembly/PrintModulePass.h"
+static const unsigned ImplicitRegUseList[] = { 0 }; /* not used yet */
// Build the MachineInstruction Description Array...
-const MachineInstrDescriptor SparcMachineInstrDesc[] = {
+const TargetInstrDescriptor SparcMachineInstrDesc[] = {
#define I(ENUM, OPCODESTRING, NUMOPERANDS, RESULTPOS, MAXIMM, IMMSE, \
NUMDELAYSLOTS, LATENCY, SCHEDCLASS, INSTFLAGS) \
{ OPCODESTRING, NUMOPERANDS, RESULTPOS, MAXIMM, IMMSE, \
- NUMDELAYSLOTS, LATENCY, SCHEDCLASS, INSTFLAGS },
+ NUMDELAYSLOTS, LATENCY, SCHEDCLASS, INSTFLAGS, 0, \
+ ImplicitRegUseList, ImplicitRegUseList },
#include "SparcInstr.def"
};
// Command line options to control choice of code generation passes.
//---------------------------------------------------------------------------
-static cl::opt<bool> DisablePreSelect("nopreselect",
- cl::desc("Disable preselection pass"));
+static cl::opt<bool> DisablePreOpt("disable-preopt",
+ cl::desc("Disable optimizations prior to instruction selection"));
-static cl::opt<bool> DisableSched("nosched",
+static cl::opt<bool> DisableSched("disable-sched",
cl::desc("Disable local scheduling pass"));
-static cl::opt<bool> DisablePeephole("nopeephole",
+static cl::opt<bool> DisablePeephole("disable-peephole",
cl::desc("Disable peephole optimization pass"));
+static cl::opt<bool> EmitMappingInfo("emitmaps",
+ cl::desc("Emit LLVM-to-MachineCode mapping info to assembly"));
+
+static cl::opt<bool> DisableStrip("disable-strip",
+ cl::desc("Do not strip the LLVM bytecode included in executable"));
+
+static cl::opt<bool> DumpInput("dump-input",
+ cl::desc("Print bytecode before native code generation"),
+ cl::Hidden);
+
//----------------------------------------------------------------------------
// allocateSparcTargetMachine - Allocate and return a subclass of TargetMachine
// that implements the Sparc backend. (the llvm/CodeGen/Sparc.h interface)
//----------------------------------------------------------------------------
-TargetMachine *allocateSparcTargetMachine() { return new UltraSparc(); }
-
-
+TargetMachine *allocateSparcTargetMachine(unsigned Configuration) {
+ return new UltraSparc();
+}
//---------------------------------------------------------------------------
// class UltraSparcFrameInfo
//
-// Purpose:
// Interface to stack frame layout info for the UltraSPARC.
// Starting offsets for each area of the stack frame are aligned at
// a multiple of getStackFrameSizeAlignment().
UltraSparcFrameInfo::getRegSpillAreaOffset(MachineFunction& mcInfo,
bool& pos) const
{
- mcInfo.freezeAutomaticVarsArea(); // ensure no more auto vars are added
+ // ensure no more auto vars are added
+ mcInfo.getInfo()->freezeAutomaticVarsArea();
pos = false; // static stack area grows downwards
- unsigned int autoVarsSize = mcInfo.getAutomaticVarsSize();
+ unsigned autoVarsSize = mcInfo.getInfo()->getAutomaticVarsSize();
return StaticAreaOffsetFromFP - autoVarsSize;
}
UltraSparcFrameInfo::getTmpAreaOffset(MachineFunction& mcInfo,
bool& pos) const
{
- mcInfo.freezeAutomaticVarsArea(); // ensure no more auto vars are added
- mcInfo.freezeSpillsArea(); // ensure no more spill slots are added
+ MachineFunctionInfo *MFI = mcInfo.getInfo();
+ MFI->freezeAutomaticVarsArea(); // ensure no more auto vars are added
+ MFI->freezeSpillsArea(); // ensure no more spill slots are added
pos = false; // static stack area grows downwards
- unsigned int autoVarsSize = mcInfo.getAutomaticVarsSize();
- unsigned int spillAreaSize = mcInfo.getRegSpillsSize();
+ unsigned autoVarsSize = MFI->getAutomaticVarsSize();
+ unsigned spillAreaSize = MFI->getRegSpillsSize();
int offset = autoVarsSize + spillAreaSize;
return StaticAreaOffsetFromFP - offset;
}
// during calls and traps, so they are shifted downwards on each
// dynamic-size alloca.
pos = false;
- unsigned int optArgsSize = mcInfo.getMaxOptionalArgsSize();
+ unsigned optArgsSize = mcInfo.getInfo()->getMaxOptionalArgsSize();
if (int extra = optArgsSize % getStackFrameSizeAlignment())
optArgsSize += (getStackFrameSizeAlignment() - extra);
int offset = optArgsSize + FirstOptionalOutgoingArgOffsetFromSP;
// Primary interface to machine description for the UltraSPARC.
// Primarily just initializes machine-dependent parameters in
// class TargetMachine, and creates machine-dependent subclasses
-// for classes such as MachineInstrInfo.
+// for classes such as TargetInstrInfo.
//
//---------------------------------------------------------------------------
UltraSparc::UltraSparc()
- : TargetMachine("UltraSparc-Native"),
+ : TargetMachine("UltraSparc-Native", false),
schedInfo(*this),
regInfo(*this),
frameInfo(*this),
cacheInfo(*this),
- optInfo(*this)
-{
- optSizeForSubWordData = 4;
- minMemOpWordSize = 8;
- maxAtomicMemOpWordSize = 8;
+ optInfo(*this) {
}
//
bool UltraSparc::addPassesToEmitAssembly(PassManager &PM, std::ostream &Out)
{
+ // The following 3 passes used to be inserted specially by llc.
+ // Replace malloc and free instructions with library calls.
+ PM.add(createLowerAllocationsPass());
+
+ // Strip all of the symbols from the bytecode so that it will be smaller...
+ if (!DisableStrip)
+ PM.add(createSymbolStrippingPass());
+
+ // FIXME: implement the switch instruction in the instruction selector.
+ PM.add(createLowerSwitchPass());
+
+ // decompose multi-dimensional array references into single-dim refs
+ PM.add(createDecomposeMultiDimRefsPass());
+
// Construct and initialize the MachineFunction object for this fn.
PM.add(createMachineCodeConstructionPass(*this));
//so %fp+offset-8 and %fp+offset-16 are empty slots now!
PM.add(createStackSlotsPass(*this));
- // Specialize LLVM code for this target machine and then
- // run basic dataflow optimizations on LLVM code.
- if (!DisablePreSelect)
- {
- PM.add(createPreSelectionPass(*this));
- /* PM.add(createReassociatePass()); */
- PM.add(createLICMPass());
- PM.add(createGCSEPass());
- }
+ if (!DisablePreOpt) {
+ // Specialize LLVM code for this target machine
+ PM.add(createPreSelectionPass(*this));
+ // Run basic dataflow optimizations on LLVM code
+ PM.add(createReassociatePass());
+ PM.add(createLICMPass());
+ PM.add(createGCSEPass());
+ }
+
+ // If LLVM dumping after transformations is requested, add it to the pipeline
+ if (DumpInput)
+ PM.add(new PrintFunctionPass("Input code to instsr. selection:\n",
+ &std::cerr));
PM.add(createInstructionSelectionPass(*this));
if (!DisablePeephole)
PM.add(createPeepholeOptsPass(*this));
- PM.add(MappingInfoForFunction(Out));
+ if (EmitMappingInfo)
+ PM.add(getMappingInfoCollector(Out));
// Output assembly language to the .s file. Assembly emission is split into
// two parts: Function output and Global value output. This is because
PM.add(getModuleAsmPrinterPass(Out));
// Emit bytecode to the assembly file into its special section next
- PM.add(getEmitBytecodeToAsmPass(Out));
- PM.add(getFunctionInfo(Out));
+ if (EmitMappingInfo) {
+ PM.add(getEmitBytecodeToAsmPass(Out));
+ PM.add(getFunctionInfo(Out));
+ }
+
return false;
}
+
+// addPassesToJITCompile - This method controls the JIT method of code
+// generation for the UltraSparc.
+//
+bool UltraSparc::addPassesToJITCompile(PassManager &PM) {
+ const TargetData &TD = getTargetData();
+
+ PM.add(new TargetData("lli", TD.isLittleEndian(), TD.getPointerSize(),
+ TD.getPointerAlignment(), TD.getDoubleAlignment()));
+
+ // Replace malloc and free instructions with library calls.
+ // Do this after tracing until lli implements these lib calls.
+ // For now, it will emulate malloc and free internally.
+ PM.add(createLowerAllocationsPass());
+
+ // FIXME: implement the switch instruction in the instruction selector.
+ PM.add(createLowerSwitchPass());
+
+ // decompose multi-dimensional array references into single-dim refs
+ PM.add(createDecomposeMultiDimRefsPass());
+
+ // Construct and initialize the MachineFunction object for this fn.
+ PM.add(createMachineCodeConstructionPass(*this));
+
+ PM.add(createInstructionSelectionPass(*this));
+
+ // new pass: convert Value* in MachineOperand to an unsigned register
+ // this brings it in line with what the X86 JIT's RegisterAllocator expects
+ //PM.add(createAddRegNumToValuesPass());
+
+ PM.add(getRegisterAllocator(*this));
+ PM.add(getPrologEpilogInsertionPass());
+
+ if (!DisablePeephole)
+ PM.add(createPeepholeOptsPass(*this));
+
+ return false; // success!
+}
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