//
//===----------------------------------------------------------------------===//
-#include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/ADT/STLExtras.h"
#include "llvm/CodeGen/PseudoSourceValue.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/LLVMContext.h"
+#include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/LLVMContext.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/ManagedStatic.h"
-#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Mutex.h"
+#include "llvm/Support/raw_ostream.h"
#include <map>
using namespace llvm;
-namespace {
-struct PSVGlobalsTy {
- // PseudoSourceValues are immutable so don't need locking.
- const PseudoSourceValue PSVs[4];
- sys::Mutex Lock; // Guards FSValues, but not the values inside it.
- std::map<int, const PseudoSourceValue *> FSValues;
-
- PSVGlobalsTy() : PSVs() {}
- ~PSVGlobalsTy() {
- for (std::map<int, const PseudoSourceValue *>::iterator
- I = FSValues.begin(), E = FSValues.end(); I != E; ++I) {
- delete I->second;
- }
- }
-};
-
-static ManagedStatic<PSVGlobalsTy> PSVGlobals;
-
-} // anonymous namespace
-
-const PseudoSourceValue *PseudoSourceValue::getStack()
-{ return &PSVGlobals->PSVs[0]; }
-const PseudoSourceValue *PseudoSourceValue::getGOT()
-{ return &PSVGlobals->PSVs[1]; }
-const PseudoSourceValue *PseudoSourceValue::getJumpTable()
-{ return &PSVGlobals->PSVs[2]; }
-const PseudoSourceValue *PseudoSourceValue::getConstantPool()
-{ return &PSVGlobals->PSVs[3]; }
-
static const char *const PSVNames[] = {
- "Stack",
- "GOT",
- "JumpTable",
- "ConstantPool"
-};
-
-// FIXME: THIS IS A HACK!!!!
-// Eventually these should be uniqued on LLVMContext rather than in a managed
-// static. For now, we can safely use the global context for the time being to
-// squeak by.
-PseudoSourceValue::PseudoSourceValue(enum ValueTy Subclass) :
- Value(Type::getInt8PtrTy(getGlobalContext()),
- Subclass) {}
+ "Stack", "GOT", "JumpTable", "ConstantPool", "FixedStack",
+ "GlobalValueCallEntry", "ExternalSymbolCallEntry"};
-void PseudoSourceValue::printCustom(raw_ostream &O) const {
- O << PSVNames[this - PSVGlobals->PSVs];
-}
+PseudoSourceValue::PseudoSourceValue(PSVKind Kind) : Kind(Kind) {}
-const PseudoSourceValue *PseudoSourceValue::getFixedStack(int FI) {
- PSVGlobalsTy &PG = *PSVGlobals;
- sys::ScopedLock locked(PG.Lock);
- const PseudoSourceValue *&V = PG.FSValues[FI];
- if (!V)
- V = new FixedStackPseudoSourceValue(FI);
- return V;
+PseudoSourceValue::~PseudoSourceValue() {}
+
+void PseudoSourceValue::printCustom(raw_ostream &O) const {
+ O << PSVNames[Kind];
}
bool PseudoSourceValue::isConstant(const MachineFrameInfo *) const {
- if (this == getStack())
+ if (isStack())
return false;
- if (this == getGOT() ||
- this == getConstantPool() ||
- this == getJumpTable())
+ if (isGOT() || isConstantPool() || isJumpTable())
return true;
llvm_unreachable("Unknown PseudoSourceValue!");
- return false;
}
-bool PseudoSourceValue::isAliased(const MachineFrameInfo *MFI) const {
- if (this == getStack() ||
- this == getGOT() ||
- this == getConstantPool() ||
- this == getJumpTable())
+bool PseudoSourceValue::isAliased(const MachineFrameInfo *) const {
+ if (isStack() || isGOT() || isConstantPool() || isJumpTable())
return false;
llvm_unreachable("Unknown PseudoSourceValue!");
- return true;
}
-bool PseudoSourceValue::mayAlias(const MachineFrameInfo *MFI) const {
- if (this == getGOT() ||
- this == getConstantPool() ||
- this == getJumpTable())
- return false;
- return true;
+bool PseudoSourceValue::mayAlias(const MachineFrameInfo *) const {
+ return !(isGOT() || isConstantPool() || isJumpTable());
}
-bool FixedStackPseudoSourceValue::isConstant(const MachineFrameInfo *MFI) const{
+bool FixedStackPseudoSourceValue::isConstant(
+ const MachineFrameInfo *MFI) const {
return MFI && MFI->isImmutableObjectIndex(FI);
}
bool FixedStackPseudoSourceValue::isAliased(const MachineFrameInfo *MFI) const {
- // Negative frame indices are used for special things that don't
- // appear in LLVM IR. Non-negative indices may be used for things
- // like static allocas.
if (!MFI)
- return FI >= 0;
- // Spill slots should not alias others.
- return !MFI->isFixedObjectIndex(FI) && !MFI->isSpillSlotObjectIndex(FI);
+ return true;
+ return MFI->isAliasedObjectIndex(FI);
}
bool FixedStackPseudoSourceValue::mayAlias(const MachineFrameInfo *MFI) const {
void FixedStackPseudoSourceValue::printCustom(raw_ostream &OS) const {
OS << "FixedStack" << FI;
}
+
+CallEntryPseudoSourceValue::CallEntryPseudoSourceValue(PSVKind Kind)
+ : PseudoSourceValue(Kind) {}
+
+bool CallEntryPseudoSourceValue::isConstant(const MachineFrameInfo *) const {
+ return false;
+}
+
+bool CallEntryPseudoSourceValue::isAliased(const MachineFrameInfo *) const {
+ return false;
+}
+
+bool CallEntryPseudoSourceValue::mayAlias(const MachineFrameInfo *) const {
+ return false;
+}
+
+GlobalValuePseudoSourceValue::GlobalValuePseudoSourceValue(
+ const GlobalValue *GV)
+ : CallEntryPseudoSourceValue(GlobalValueCallEntry), GV(GV) {}
+
+ExternalSymbolPseudoSourceValue::ExternalSymbolPseudoSourceValue(const char *ES)
+ : CallEntryPseudoSourceValue(ExternalSymbolCallEntry), ES(ES) {}
+
+PseudoSourceValueManager::PseudoSourceValueManager()
+ : StackPSV(PseudoSourceValue::Stack), GOTPSV(PseudoSourceValue::GOT),
+ JumpTablePSV(PseudoSourceValue::JumpTable),
+ ConstantPoolPSV(PseudoSourceValue::ConstantPool) {}
+
+const PseudoSourceValue *PseudoSourceValueManager::getStack() {
+ return &StackPSV;
+}
+
+const PseudoSourceValue *PseudoSourceValueManager::getGOT() { return &GOTPSV; }
+
+const PseudoSourceValue *PseudoSourceValueManager::getConstantPool() {
+ return &ConstantPoolPSV;
+}
+
+const PseudoSourceValue *PseudoSourceValueManager::getJumpTable() {
+ return &JumpTablePSV;
+}
+
+const PseudoSourceValue *PseudoSourceValueManager::getFixedStack(int FI) {
+ std::unique_ptr<FixedStackPseudoSourceValue> &V = FSValues[FI];
+ if (!V)
+ V = llvm::make_unique<FixedStackPseudoSourceValue>(FI);
+ return V.get();
+}
+
+const PseudoSourceValue *
+PseudoSourceValueManager::getGlobalValueCallEntry(const GlobalValue *GV) {
+ std::unique_ptr<const GlobalValuePseudoSourceValue> &E =
+ GlobalCallEntries[GV];
+ if (!E)
+ E = llvm::make_unique<GlobalValuePseudoSourceValue>(GV);
+ return E.get();
+}
+
+const PseudoSourceValue *
+PseudoSourceValueManager::getExternalSymbolCallEntry(const char *ES) {
+ std::unique_ptr<const ExternalSymbolPseudoSourceValue> &E =
+ ExternalCallEntries[ES];
+ if (!E)
+ E = llvm::make_unique<ExternalSymbolPseudoSourceValue>(ES);
+ return E.get();
+}
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