diff options
Diffstat (limited to 'include/llvm/CodeGen/CallingConvLower.h')
-rw-r--r-- | include/llvm/CodeGen/CallingConvLower.h | 59 |
1 files changed, 33 insertions, 26 deletions
diff --git a/include/llvm/CodeGen/CallingConvLower.h b/include/llvm/CodeGen/CallingConvLower.h index 04af4bd..0b2ccc6 100644 --- a/include/llvm/CodeGen/CallingConvLower.h +++ b/include/llvm/CodeGen/CallingConvLower.h @@ -31,18 +31,25 @@ class TargetRegisterInfo; class CCValAssign { public: enum LocInfo { - Full, // The value fills the full location. - SExt, // The value is sign extended in the location. - ZExt, // The value is zero extended in the location. - AExt, // The value is extended with undefined upper bits. - BCvt, // The value is bit-converted in the location. - VExt, // The value is vector-widened in the location. - // FIXME: Not implemented yet. Code that uses AExt to mean - // vector-widen should be fixed to use VExt instead. - FPExt, // The floating-point value is fp-extended in the location. - Indirect // The location contains pointer to the value. + Full, // The value fills the full location. + SExt, // The value is sign extended in the location. + ZExt, // The value is zero extended in the location. + AExt, // The value is extended with undefined upper bits. + SExtUpper, // The value is in the upper bits of the location and should be + // sign extended when retrieved. + ZExtUpper, // The value is in the upper bits of the location and should be + // zero extended when retrieved. + AExtUpper, // The value is in the upper bits of the location and should be + // extended with undefined upper bits when retrieved. + BCvt, // The value is bit-converted in the location. + VExt, // The value is vector-widened in the location. + // FIXME: Not implemented yet. Code that uses AExt to mean + // vector-widen should be fixed to use VExt instead. + FPExt, // The floating-point value is fp-extended in the location. + Indirect // The location contains pointer to the value. // TODO: a subset of the value is in the location. }; + private: /// ValNo - This is the value number begin assigned (e.g. an argument number). unsigned ValNo; @@ -146,6 +153,9 @@ public: return (HTP == AExt || HTP == SExt || HTP == ZExt); } + bool isUpperBitsInLoc() const { + return HTP == AExtUpper || HTP == SExtUpper || HTP == ZExtUpper; + } }; /// CCAssignFn - This function assigns a location for Val, updating State to @@ -174,7 +184,6 @@ private: CallingConv::ID CallingConv; bool IsVarArg; MachineFunction &MF; - const TargetMachine &TM; const TargetRegisterInfo &TRI; SmallVectorImpl<CCValAssign> &Locs; LLVMContext &Context; @@ -208,10 +217,10 @@ private: // while "%t" goes to the stack: it wouldn't be described in ByValRegs. // // Supposed use-case for this collection: - // 1. Initially ByValRegs is empty, InRegsParamsProceed is 0. + // 1. Initially ByValRegs is empty, InRegsParamsProcessed is 0. // 2. HandleByVal fillups ByValRegs. // 3. Argument analysis (LowerFormatArguments, for example). After - // some byval argument was analyzed, InRegsParamsProceed is increased. + // some byval argument was analyzed, InRegsParamsProcessed is increased. struct ByValInfo { ByValInfo(unsigned B, unsigned E, bool IsWaste = false) : Begin(B), End(E), Waste(IsWaste) {} @@ -229,24 +238,22 @@ private: }; SmallVector<ByValInfo, 4 > ByValRegs; - // InRegsParamsProceed - shows how many instances of ByValRegs was proceed + // InRegsParamsProcessed - shows how many instances of ByValRegs was proceed // during argument analysis. - unsigned InRegsParamsProceed; + unsigned InRegsParamsProcessed; protected: ParmContext CallOrPrologue; public: CCState(CallingConv::ID CC, bool isVarArg, MachineFunction &MF, - const TargetMachine &TM, SmallVectorImpl<CCValAssign> &locs, - LLVMContext &C); + SmallVectorImpl<CCValAssign> &locs, LLVMContext &C); void addLoc(const CCValAssign &V) { Locs.push_back(V); } LLVMContext &getContext() const { return Context; } - const TargetMachine &getTarget() const { return TM; } MachineFunction &getMachineFunction() const { return MF; } CallingConv::ID getCallingConv() const { return CallingConv; } bool isVarArg() const { return IsVarArg; } @@ -377,8 +384,8 @@ public: /// AllocateStack - Allocate a chunk of stack space with the specified size /// and alignment. unsigned AllocateStack(unsigned Size, unsigned Align) { - assert(Align && ((Align-1) & Align) == 0); // Align is power of 2. - StackOffset = ((StackOffset + Align-1) & ~(Align-1)); + assert(Align && ((Align - 1) & Align) == 0); // Align is power of 2. + StackOffset = ((StackOffset + Align - 1) & ~(Align - 1)); unsigned Result = StackOffset; StackOffset += Size; MF.getFrameInfo()->ensureMaxAlignment(Align); @@ -412,7 +419,7 @@ public: unsigned getInRegsParamsCount() const { return ByValRegs.size(); } // Returns count of byval in-regs arguments proceed. - unsigned getInRegsParamsProceed() const { return InRegsParamsProceed; } + unsigned getInRegsParamsProcessed() const { return InRegsParamsProcessed; } // Get information about N-th byval parameter that is stored in registers. // Here "ByValParamIndex" is N. @@ -436,20 +443,20 @@ public: // Returns false, if end is reached. bool nextInRegsParam() { unsigned e = ByValRegs.size(); - if (InRegsParamsProceed < e) - ++InRegsParamsProceed; - return InRegsParamsProceed < e; + if (InRegsParamsProcessed < e) + ++InRegsParamsProcessed; + return InRegsParamsProcessed < e; } // Clear byval registers tracking info. void clearByValRegsInfo() { - InRegsParamsProceed = 0; + InRegsParamsProcessed = 0; ByValRegs.clear(); } // Rewind byval registers tracking info. void rewindByValRegsInfo() { - InRegsParamsProceed = 0; + InRegsParamsProcessed = 0; } ParmContext getCallOrPrologue() const { return CallOrPrologue; } |