diff options
Diffstat (limited to 'include/llvm/Instructions.h')
-rw-r--r-- | include/llvm/Instructions.h | 122 |
1 files changed, 100 insertions, 22 deletions
diff --git a/include/llvm/Instructions.h b/include/llvm/Instructions.h index dbbf5f9..4103362 100644 --- a/include/llvm/Instructions.h +++ b/include/llvm/Instructions.h @@ -143,11 +143,19 @@ public: LoadInst(Value *Ptr, const Twine &NameStr, bool isVolatile = false, Instruction *InsertBefore = 0); LoadInst(Value *Ptr, const Twine &NameStr, bool isVolatile, - unsigned Align, Instruction *InsertBefore = 0); - LoadInst(Value *Ptr, const Twine &NameStr, bool isVolatile, BasicBlock *InsertAtEnd); LoadInst(Value *Ptr, const Twine &NameStr, bool isVolatile, + unsigned Align, Instruction *InsertBefore = 0); + LoadInst(Value *Ptr, const Twine &NameStr, bool isVolatile, unsigned Align, BasicBlock *InsertAtEnd); + LoadInst(Value *Ptr, const Twine &NameStr, bool isVolatile, + unsigned Align, AtomicOrdering Order, + SynchronizationScope SynchScope = CrossThread, + Instruction *InsertBefore = 0); + LoadInst(Value *Ptr, const Twine &NameStr, bool isVolatile, + unsigned Align, AtomicOrdering Order, + SynchronizationScope SynchScope, + BasicBlock *InsertAtEnd); LoadInst(Value *Ptr, const char *NameStr, Instruction *InsertBefore); LoadInst(Value *Ptr, const char *NameStr, BasicBlock *InsertAtEnd); @@ -171,11 +179,47 @@ public: /// getAlignment - Return the alignment of the access that is being performed /// unsigned getAlignment() const { - return (1 << (getSubclassDataFromInstruction() >> 1)) >> 1; + return (1 << ((getSubclassDataFromInstruction() >> 1) & 31)) >> 1; } void setAlignment(unsigned Align); + /// Returns the ordering effect of this fence. + AtomicOrdering getOrdering() const { + return AtomicOrdering((getSubclassDataFromInstruction() >> 7) & 7); + } + + /// Set the ordering constraint on this load. May not be Release or + /// AcquireRelease. + void setOrdering(AtomicOrdering Ordering) { + setInstructionSubclassData((getSubclassDataFromInstruction() & ~(7 << 7)) | + (Ordering << 7)); + } + + SynchronizationScope getSynchScope() const { + return SynchronizationScope((getSubclassDataFromInstruction() >> 6) & 1); + } + + /// Specify whether this load is ordered with respect to all + /// concurrently executing threads, or only with respect to signal handlers + /// executing in the same thread. + void setSynchScope(SynchronizationScope xthread) { + setInstructionSubclassData((getSubclassDataFromInstruction() & ~(1 << 6)) | + (xthread << 6)); + } + + bool isAtomic() const { return getOrdering() != NotAtomic; } + void setAtomic(AtomicOrdering Ordering, + SynchronizationScope SynchScope = CrossThread) { + setOrdering(Ordering); + setSynchScope(SynchScope); + } + + bool isSimple() const { return !isAtomic() && !isVolatile(); } + bool isUnordered() const { + return getOrdering() <= Unordered && !isVolatile(); + } + Value *getPointerOperand() { return getOperand(0); } const Value *getPointerOperand() const { return getOperand(0); } static unsigned getPointerOperandIndex() { return 0U; } @@ -222,19 +266,27 @@ public: StoreInst(Value *Val, Value *Ptr, BasicBlock *InsertAtEnd); StoreInst(Value *Val, Value *Ptr, bool isVolatile = false, Instruction *InsertBefore = 0); + StoreInst(Value *Val, Value *Ptr, bool isVolatile, BasicBlock *InsertAtEnd); StoreInst(Value *Val, Value *Ptr, bool isVolatile, unsigned Align, Instruction *InsertBefore = 0); - StoreInst(Value *Val, Value *Ptr, bool isVolatile, BasicBlock *InsertAtEnd); StoreInst(Value *Val, Value *Ptr, bool isVolatile, unsigned Align, BasicBlock *InsertAtEnd); + StoreInst(Value *Val, Value *Ptr, bool isVolatile, + unsigned Align, AtomicOrdering Order, + SynchronizationScope SynchScope = CrossThread, + Instruction *InsertBefore = 0); + StoreInst(Value *Val, Value *Ptr, bool isVolatile, + unsigned Align, AtomicOrdering Order, + SynchronizationScope SynchScope, + BasicBlock *InsertAtEnd); + - - /// isVolatile - Return true if this is a load from a volatile memory + /// isVolatile - Return true if this is a store to a volatile memory /// location. /// bool isVolatile() const { return getSubclassDataFromInstruction() & 1; } - /// setVolatile - Specify whether this is a volatile load or not. + /// setVolatile - Specify whether this is a volatile store or not. /// void setVolatile(bool V) { setInstructionSubclassData((getSubclassDataFromInstruction() & ~1) | @@ -247,11 +299,47 @@ public: /// getAlignment - Return the alignment of the access that is being performed /// unsigned getAlignment() const { - return (1 << (getSubclassDataFromInstruction() >> 1)) >> 1; + return (1 << ((getSubclassDataFromInstruction() >> 1) & 31)) >> 1; } void setAlignment(unsigned Align); + /// Returns the ordering effect of this store. + AtomicOrdering getOrdering() const { + return AtomicOrdering((getSubclassDataFromInstruction() >> 7) & 7); + } + + /// Set the ordering constraint on this store. May not be Acquire or + /// AcquireRelease. + void setOrdering(AtomicOrdering Ordering) { + setInstructionSubclassData((getSubclassDataFromInstruction() & ~(7 << 7)) | + (Ordering << 7)); + } + + SynchronizationScope getSynchScope() const { + return SynchronizationScope((getSubclassDataFromInstruction() >> 6) & 1); + } + + /// Specify whether this store instruction is ordered with respect to all + /// concurrently executing threads, or only with respect to signal handlers + /// executing in the same thread. + void setSynchScope(SynchronizationScope xthread) { + setInstructionSubclassData((getSubclassDataFromInstruction() & ~(1 << 6)) | + (xthread << 6)); + } + + bool isAtomic() const { return getOrdering() != NotAtomic; } + void setAtomic(AtomicOrdering Ordering, + SynchronizationScope SynchScope = CrossThread) { + setOrdering(Ordering); + setSynchScope(SynchScope); + } + + bool isSimple() const { return !isAtomic() && !isVolatile(); } + bool isUnordered() const { + return getOrdering() <= Unordered && !isVolatile(); + } + Value *getValueOperand() { return getOperand(0); } const Value *getValueOperand() const { return getOperand(0); } @@ -319,18 +407,8 @@ public: /// Set the ordering constraint on this fence. May only be Acquire, Release, /// AcquireRelease, or SequentiallyConsistent. void setOrdering(AtomicOrdering Ordering) { - switch (Ordering) { - case Acquire: - case Release: - case AcquireRelease: - case SequentiallyConsistent: - setInstructionSubclassData((getSubclassDataFromInstruction() & 1) | - (Ordering << 1)); - return; - default: - llvm_unreachable("FenceInst ordering must be Acquire, Release," - " AcquireRelease, or SequentiallyConsistent"); - } + setInstructionSubclassData((getSubclassDataFromInstruction() & 1) | + (Ordering << 1)); } SynchronizationScope getSynchScope() const { @@ -555,7 +633,7 @@ public: void setOrdering(AtomicOrdering Ordering) { assert(Ordering != NotAtomic && "atomicrmw instructions can only be atomic."); - setInstructionSubclassData((getSubclassDataFromInstruction() & ~28) | + setInstructionSubclassData((getSubclassDataFromInstruction() & ~(7 << 2)) | (Ordering << 2)); } @@ -569,7 +647,7 @@ public: /// Returns the ordering constraint on this RMW. AtomicOrdering getOrdering() const { - return AtomicOrdering((getSubclassDataFromInstruction() & 28) >> 2); + return AtomicOrdering((getSubclassDataFromInstruction() >> 2) & 7); } /// Returns whether this RMW is atomic between threads or only within a |