X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FCodeGen%2FMachineFunction.h;h=025e18a9dde03502aa2bddc2f385ec95fe56ec1d;hb=53e98a2c4aa7065f4136c5263b14192036c1e056;hp=5bb453dd50faee222976ef4cb68063927d2cdb06;hpb=73cf709a08d480c4315dc4aa9f644cf86494c4cf;p=oota-llvm.git diff --git a/include/llvm/CodeGen/MachineFunction.h b/include/llvm/CodeGen/MachineFunction.h index 5bb453dd50f..025e18a9dde 100644 --- a/include/llvm/CodeGen/MachineFunction.h +++ b/include/llvm/CodeGen/MachineFunction.h @@ -28,6 +28,7 @@ namespace llvm { class Value; class Function; +class GCModuleInfo; class MachineRegisterInfo; class MachineFrameInfo; class MachineConstantPool; @@ -37,6 +38,7 @@ class MCContext; class Pass; class TargetMachine; class TargetRegisterClass; +struct MachinePointerInfo; template <> struct ilist_traits @@ -74,6 +76,7 @@ class MachineFunction { const TargetMachine &Target; MCContext &Ctx; MachineModuleInfo &MMI; + GCModuleInfo *GMI; // RegInfo - Information about each register in use in the function. MachineRegisterInfo *RegInfo; @@ -117,29 +120,37 @@ class MachineFunction { /// Alignment - The alignment of the function. unsigned Alignment; - /// CallsSetJmp - True if the function calls setjmp or sigsetjmp. This is used - /// to limit optimizations which cannot reason about the control flow of - /// setjmp. - bool CallsSetJmp; + /// ExposesReturnsTwice - True if the function calls setjmp or related + /// functions with attribute "returns twice", but doesn't have + /// the attribute itself. + /// This is used to limit optimizations which cannot reason + /// about the control flow of such functions. + bool ExposesReturnsTwice; - MachineFunction(const MachineFunction &); // DO NOT IMPLEMENT - void operator=(const MachineFunction&); // DO NOT IMPLEMENT + MachineFunction(const MachineFunction &) LLVM_DELETED_FUNCTION; + void operator=(const MachineFunction&) LLVM_DELETED_FUNCTION; public: MachineFunction(const Function *Fn, const TargetMachine &TM, - unsigned FunctionNum, MachineModuleInfo &MMI); + unsigned FunctionNum, MachineModuleInfo &MMI, + GCModuleInfo* GMI); ~MachineFunction(); MachineModuleInfo &getMMI() const { return MMI; } + GCModuleInfo *getGMI() const { return GMI; } MCContext &getContext() const { return Ctx; } - + /// getFunction - Return the LLVM function that this machine code represents /// const Function *getFunction() const { return Fn; } + /// getName - Return the name of the corresponding LLVM function. + /// + StringRef getName() const; + /// getFunctionNumber - Return a unique ID for the current function. /// unsigned getFunctionNumber() const { return FunctionNumber; } - + /// getTarget - Return the target machine this machine code is compiled with /// const TargetMachine &getTarget() const { return Target; } @@ -182,20 +193,22 @@ public: /// void setAlignment(unsigned A) { Alignment = A; } - /// EnsureAlignment - Make sure the function is at least 'A' bits aligned. - void EnsureAlignment(unsigned A) { + /// ensureAlignment - Make sure the function is at least 1 << A bytes aligned. + void ensureAlignment(unsigned A) { if (Alignment < A) Alignment = A; } - /// callsSetJmp - Returns true if the function calls setjmp or sigsetjmp. - bool callsSetJmp() const { - return CallsSetJmp; + /// exposesReturnsTwice - Returns true if the function calls setjmp or + /// any other similar functions with attribute "returns twice" without + /// having the attribute itself. + bool exposesReturnsTwice() const { + return ExposesReturnsTwice; } - /// setCallsSetJmp - Set a flag that indicates if there's a call to setjmp or - /// sigsetjmp. - void setCallsSetJmp(bool B) { - CallsSetJmp = B; + /// setCallsSetJmp - Set a flag that indicates if there's a call to + /// a "returns twice" function. + void setExposesReturnsTwice(bool B) { + ExposesReturnsTwice = B; } /// getInfo - Keep track of various per-function pieces of information for @@ -243,7 +256,7 @@ public: /// print - Print out the MachineFunction in a format suitable for debugging /// to the specified stream. /// - void print(raw_ostream &OS) const; + void print(raw_ostream &OS, SlotIndexes* = 0) const; /// viewCFG - This function is meant for use from the debugger. You can just /// say 'call F->viewCFG()' and a ghostview window should pop up from the @@ -266,7 +279,7 @@ public: /// verify - Run the current MachineFunction through the machine code /// verifier, useful for debugger use. - void verify(Pass *p=NULL) const; + void verify(Pass *p = NULL, const char *Banner = NULL) const; // Provide accessors for the MachineBasicBlock list... typedef BasicBlockListType::iterator iterator; @@ -340,7 +353,7 @@ public: /// CreateMachineInstr - Allocate a new MachineInstr. Use this instead /// of `new MachineInstr'. /// - MachineInstr *CreateMachineInstr(const TargetInstrDesc &TID, + MachineInstr *CreateMachineInstr(const MCInstrDesc &MCID, DebugLoc DL, bool NoImp = false); @@ -368,10 +381,12 @@ public: /// getMachineMemOperand - Allocate a new MachineMemOperand. /// MachineMemOperands are owned by the MachineFunction and need not be /// explicitly deallocated. - MachineMemOperand *getMachineMemOperand(const Value *v, unsigned f, - int64_t o, uint64_t s, - unsigned base_alignment); - + MachineMemOperand *getMachineMemOperand(MachinePointerInfo PtrInfo, + unsigned f, uint64_t s, + unsigned base_alignment, + const MDNode *TBAAInfo = 0, + const MDNode *Ranges = 0); + /// getMachineMemOperand - Allocate a new MachineMemOperand by copying /// an existing one, adjusting by an offset and using the given size. /// MachineMemOperands are owned by the MachineFunction and need not be @@ -406,6 +421,10 @@ public: /// normal 'L' label is returned. MCSymbol *getJTISymbol(unsigned JTI, MCContext &Ctx, bool isLinkerPrivate = false) const; + + /// getPICBaseSymbol - Return a function-local symbol to represent the PIC + /// base. + MCSymbol *getPICBaseSymbol() const; }; //===--------------------------------------------------------------------===// @@ -427,6 +446,7 @@ template <> struct GraphTraits : typedef MachineFunction::iterator nodes_iterator; static nodes_iterator nodes_begin(MachineFunction *F) { return F->begin(); } static nodes_iterator nodes_end (MachineFunction *F) { return F->end(); } + static unsigned size (MachineFunction *F) { return F->size(); } }; template <> struct GraphTraits : public GraphTraits { @@ -442,6 +462,9 @@ template <> struct GraphTraits : static nodes_iterator nodes_end (const MachineFunction *F) { return F->end(); } + static unsigned size (const MachineFunction *F) { + return F->size(); + } };