#include "llvm/Target/TargetMachine.h"
#include "llvm/PassManager.h"
+#include "llvm/Analysis/Passes.h"
#include "llvm/Analysis/Verifier.h"
#include "llvm/Assembly/PrintModulePass.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/GCStrategy.h"
#include "llvm/CodeGen/Passes.h"
+#include "llvm/Target/TargetLowering.h"
#include "llvm/Target/TargetOptions.h"
#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/Target/TargetData.h"
+#include "llvm/Target/TargetInstrInfo.h"
+#include "llvm/Target/TargetLowering.h"
+#include "llvm/Target/TargetLoweringObjectFile.h"
+#include "llvm/Target/TargetRegisterInfo.h"
#include "llvm/Target/TargetRegistry.h"
+#include "llvm/Target/TargetSubtargetInfo.h"
#include "llvm/Transforms/Scalar.h"
#include "llvm/ADT/OwningPtr.h"
#include "llvm/Support/CommandLine.h"
case cl::BOU_UNSET: return TargetMachine::getAsmVerbosityDefault();
case cl::BOU_TRUE: return true;
case cl::BOU_FALSE: return false;
- }
+ }
}
// Enable or disable FastISel. Both options are needed, because
EnableFastISelOption("fast-isel", cl::Hidden,
cl::desc("Enable the \"fast\" instruction selector"));
-// Enable or disable an experimental optimization to split GEPs
-// and run a special GVN pass which does not examine loads, in
-// an effort to factor out redundancy implicit in complex GEPs.
-static cl::opt<bool> EnableSplitGEPGVN("split-gep-gvn", cl::Hidden,
- cl::desc("Split GEPs and run no-load GVN"));
-
-LLVMTargetMachine::LLVMTargetMachine(const Target &T,
- const std::string &Triple)
- : TargetMachine(T), TargetTriple(Triple) {
- AsmInfo = T.createAsmInfo(TargetTriple);
-}
-
-// Set the default code model for the JIT for a generic target.
-// FIXME: Is small right here? or .is64Bit() ? Large : Small?
-void LLVMTargetMachine::setCodeModelForJIT() {
- setCodeModel(CodeModel::Small);
-}
-
-// Set the default code model for static compilation for a generic target.
-void LLVMTargetMachine::setCodeModelForStatic() {
- setCodeModel(CodeModel::Small);
+LLVMTargetMachine::LLVMTargetMachine(const Target &T, StringRef Triple,
+ StringRef CPU, StringRef FS,
+ Reloc::Model RM, CodeModel::Model CM)
+ : TargetMachine(T, Triple, CPU, FS) {
+ CodeGenInfo = T.createMCCodeGenInfo(Triple, RM, CM);
+ AsmInfo = T.createMCAsmInfo(Triple);
}
bool LLVMTargetMachine::addPassesToEmitFile(PassManagerBase &PM,
return true;
assert(Context != 0 && "Failed to get MCContext");
+ if (hasMCSaveTempLabels())
+ Context->setAllowTemporaryLabels(false);
+
const MCAsmInfo &MAI = *getMCAsmInfo();
OwningPtr<MCStreamer> AsmStreamer;
// Create a code emitter if asked to show the encoding.
MCCodeEmitter *MCE = 0;
- if (ShowMCEncoding)
- MCE = getTarget().createCodeEmitter(*this, *Context);
-
- AsmStreamer.reset(createAsmStreamer(*Context, Out,
- getTargetData()->isLittleEndian(),
- getVerboseAsm(), InstPrinter,
- MCE, ShowMCInst));
+ MCAsmBackend *MAB = 0;
+ if (ShowMCEncoding) {
+ const MCSubtargetInfo &STI = getSubtarget<MCSubtargetInfo>();
+ MCE = getTarget().createMCCodeEmitter(*getInstrInfo(), STI, *Context);
+ MAB = getTarget().createMCAsmBackend(getTargetTriple());
+ }
+
+ MCStreamer *S = getTarget().createAsmStreamer(*Context, Out,
+ getVerboseAsm(),
+ hasMCUseLoc(),
+ hasMCUseCFI(),
+ InstPrinter,
+ MCE, MAB,
+ ShowMCInst);
+ AsmStreamer.reset(S);
break;
}
case CGFT_ObjectFile: {
// Create the code emitter for the target if it exists. If not, .o file
// emission fails.
- MCCodeEmitter *MCE = getTarget().createCodeEmitter(*this, *Context);
- TargetAsmBackend *TAB = getTarget().createAsmBackend(TargetTriple);
- if (MCE == 0 || TAB == 0)
+ const MCSubtargetInfo &STI = getSubtarget<MCSubtargetInfo>();
+ MCCodeEmitter *MCE = getTarget().createMCCodeEmitter(*getInstrInfo(), STI,
+ *Context);
+ MCAsmBackend *MAB = getTarget().createMCAsmBackend(getTargetTriple());
+ if (MCE == 0 || MAB == 0)
return true;
- AsmStreamer.reset(getTarget().createObjectStreamer(TargetTriple, *Context,
- *TAB, Out, MCE,
- hasMCRelaxAll()));
+ AsmStreamer.reset(getTarget().createMCObjectStreamer(getTargetTriple(),
+ *Context, *MAB, Out,
+ MCE, hasMCRelaxAll(),
+ hasMCNoExecStack()));
+ AsmStreamer.get()->InitSections();
break;
}
case CGFT_Null:
FunctionPass *Printer = getTarget().createAsmPrinter(*this, *AsmStreamer);
if (Printer == 0)
return true;
-
+
// If successful, createAsmPrinter took ownership of AsmStreamer.
AsmStreamer.take();
-
+
PM.add(Printer);
-
- // Make sure the code model is set.
- setCodeModelForStatic();
+
PM.add(createGCInfoDeleter());
return false;
}
JITCodeEmitter &JCE,
CodeGenOpt::Level OptLevel,
bool DisableVerify) {
- // Make sure the code model is set.
- setCodeModelForJIT();
-
// Add common CodeGen passes.
MCContext *Ctx = 0;
if (addCommonCodeGenPasses(PM, OptLevel, DisableVerify, Ctx))
///
bool LLVMTargetMachine::addPassesToEmitMC(PassManagerBase &PM,
MCContext *&Ctx,
+ raw_ostream &Out,
CodeGenOpt::Level OptLevel,
bool DisableVerify) {
// Add common CodeGen passes.
if (addCommonCodeGenPasses(PM, OptLevel, DisableVerify, Ctx))
return true;
- // Make sure the code model is set.
- setCodeModelForJIT();
+
+ if (hasMCSaveTempLabels())
+ Ctx->setAllowTemporaryLabels(false);
+
+ // Create the code emitter for the target if it exists. If not, .o file
+ // emission fails.
+ const MCSubtargetInfo &STI = getSubtarget<MCSubtargetInfo>();
+ MCCodeEmitter *MCE = getTarget().createMCCodeEmitter(*getInstrInfo(),STI, *Ctx);
+ MCAsmBackend *MAB = getTarget().createMCAsmBackend(getTargetTriple());
+ if (MCE == 0 || MAB == 0)
+ return true;
+
+ OwningPtr<MCStreamer> AsmStreamer;
+ AsmStreamer.reset(getTarget().createMCObjectStreamer(getTargetTriple(), *Ctx,
+ *MAB, Out, MCE,
+ hasMCRelaxAll(),
+ hasMCNoExecStack()));
+ AsmStreamer.get()->InitSections();
+
+ // Create the AsmPrinter, which takes ownership of AsmStreamer if successful.
+ FunctionPass *Printer = getTarget().createAsmPrinter(*this, *AsmStreamer);
+ if (Printer == 0)
+ return true;
+
+ // If successful, createAsmPrinter took ownership of AsmStreamer.
+ AsmStreamer.take();
+
+ PM.add(Printer);
return false; // success!
}
PM.add(createMachineFunctionPrinterPass(dbgs(), Banner));
if (VerifyMachineCode)
- PM.add(createMachineVerifierPass());
+ PM.add(createMachineVerifierPass(Banner));
}
/// addCommonCodeGenPasses - Add standard LLVM codegen passes used for both
MCContext *&OutContext) {
// Standard LLVM-Level Passes.
+ // Basic AliasAnalysis support.
+ // Add TypeBasedAliasAnalysis before BasicAliasAnalysis so that
+ // BasicAliasAnalysis wins if they disagree. This is intended to help
+ // support "obvious" type-punning idioms.
+ PM.add(createTypeBasedAliasAnalysisPass());
+ PM.add(createBasicAliasAnalysisPass());
+
// Before running any passes, run the verifier to determine if the input
// coming from the front-end and/or optimizer is valid.
if (!DisableVerify)
PM.add(createVerifierPass());
- // Optionally, tun split-GEPs and no-load GVN.
- if (EnableSplitGEPGVN) {
- PM.add(createGEPSplitterPass());
- PM.add(createGVNPass(/*NoLoads=*/true));
- }
-
// Run loop strength reduction before anything else.
if (OptLevel != CodeGenOpt::None && !DisableLSR) {
PM.add(createLoopStrengthReducePass(getTargetLowering()));
// edge from elsewhere.
PM.add(createSjLjEHPass(getTargetLowering()));
// FALLTHROUGH
- case ExceptionHandling::Dwarf:
- PM.add(createDwarfEHPass(this, OptLevel==CodeGenOpt::None));
+ case ExceptionHandling::DwarfCFI:
+ case ExceptionHandling::ARM:
+ case ExceptionHandling::Win64:
+ PM.add(createDwarfEHPass(this));
break;
case ExceptionHandling::None:
PM.add(createLowerInvokePass(getTargetLowering()));
PM.add(createVerifierPass());
// Standard Lower-Level Passes.
-
+
// Install a MachineModuleInfo class, which is an immutable pass that holds
// all the per-module stuff we're generating, including MCContext.
- MachineModuleInfo *MMI = new MachineModuleInfo(*getMCAsmInfo());
+ MachineModuleInfo *MMI = new MachineModuleInfo(*getMCAsmInfo(),
+ *getRegisterInfo(),
+ &getTargetLowering()->getObjFileLowering());
PM.add(MMI);
OutContext = &MMI->getContext(); // Return the MCContext specifically by-ref.
-
// Set up a MachineFunction for the rest of CodeGen to work on.
PM.add(new MachineFunctionAnalysis(*this, OptLevel));
// Print the instruction selected machine code...
printAndVerify(PM, "After Instruction Selection");
+ // Expand pseudo-instructions emitted by ISel.
+ PM.add(createExpandISelPseudosPass());
+
+ // Pre-ra tail duplication.
+ if (OptLevel != CodeGenOpt::None && !DisableEarlyTailDup) {
+ PM.add(createTailDuplicatePass(true));
+ printAndVerify(PM, "After Pre-RegAlloc TailDuplicate");
+ }
+
// Optimize PHIs before DCE: removing dead PHI cycles may make more
// instructions dead.
if (OptLevel != CodeGenOpt::None)
PM.add(createOptimizePHIsPass());
+ // If the target requests it, assign local variables to stack slots relative
+ // to one another and simplify frame index references where possible.
+ PM.add(createLocalStackSlotAllocationPass());
+
if (OptLevel != CodeGenOpt::None) {
// With optimization, dead code should already be eliminated. However
// there is one known exception: lowered code for arguments that are only
PM.add(createDeadMachineInstructionElimPass());
printAndVerify(PM, "After codegen DCE pass");
- PM.add(createOptimizeExtsPass());
- PM.add(createOptimizeCmpsPass());
if (!DisableMachineLICM)
PM.add(createMachineLICMPass());
PM.add(createMachineCSEPass());
if (!DisableMachineSink)
PM.add(createMachineSinkingPass());
printAndVerify(PM, "After Machine LICM, CSE and Sinking passes");
- }
- // Pre-ra tail duplication.
- if (OptLevel != CodeGenOpt::None && !DisableEarlyTailDup) {
- PM.add(createTailDuplicatePass(true));
- printAndVerify(PM, "After Pre-RegAlloc TailDuplicate");
+ PM.add(createPeepholeOptimizerPass());
+ printAndVerify(PM, "After codegen peephole optimization pass");
}
// Run pre-ra passes.