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-rw-r--r--release_23/include/llvm/CodeGen/CallingConvLower.h233
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diff --git a/release_23/include/llvm/CodeGen/CallingConvLower.h b/release_23/include/llvm/CodeGen/CallingConvLower.h
deleted file mode 100644
index 584cb1993901..000000000000
--- a/release_23/include/llvm/CodeGen/CallingConvLower.h
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@@ -1,233 +0,0 @@
-//===-- llvm/CallingConvLower.h - Calling Conventions -----------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file declares the CCState and CCValAssign classes, used for lowering
-// and implementing calling conventions.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CODEGEN_CALLINGCONVLOWER_H
-#define LLVM_CODEGEN_CALLINGCONVLOWER_H
-
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/CodeGen/ValueTypes.h"
-#include "llvm/CodeGen/SelectionDAGNodes.h"
-
-namespace llvm {
- class TargetRegisterInfo;
- class TargetMachine;
- class CCState;
- class SDNode;
-
-/// CCValAssign - Represent assignment of one arg/retval to a location.
-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.
- // 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;
-
- /// Loc is either a stack offset or a register number.
- unsigned Loc;
-
- /// isMem - True if this is a memory loc, false if it is a register loc.
- bool isMem : 1;
-
- /// Information about how the value is assigned.
- LocInfo HTP : 7;
-
- /// ValVT - The type of the value being assigned.
- MVT::ValueType ValVT;
-
- /// LocVT - The type of the location being assigned to.
- MVT::ValueType LocVT;
-public:
-
- static CCValAssign getReg(unsigned ValNo, MVT::ValueType ValVT,
- unsigned RegNo, MVT::ValueType LocVT,
- LocInfo HTP) {
- CCValAssign Ret;
- Ret.ValNo = ValNo;
- Ret.Loc = RegNo;
- Ret.isMem = false;
- Ret.HTP = HTP;
- Ret.ValVT = ValVT;
- Ret.LocVT = LocVT;
- return Ret;
- }
- static CCValAssign getMem(unsigned ValNo, MVT::ValueType ValVT,
- unsigned Offset, MVT::ValueType LocVT,
- LocInfo HTP) {
- CCValAssign Ret;
- Ret.ValNo = ValNo;
- Ret.Loc = Offset;
- Ret.isMem = true;
- Ret.HTP = HTP;
- Ret.ValVT = ValVT;
- Ret.LocVT = LocVT;
- return Ret;
- }
-
- unsigned getValNo() const { return ValNo; }
- MVT::ValueType getValVT() const { return ValVT; }
-
- bool isRegLoc() const { return !isMem; }
- bool isMemLoc() const { return isMem; }
-
- unsigned getLocReg() const { assert(isRegLoc()); return Loc; }
- unsigned getLocMemOffset() const { assert(isMemLoc()); return Loc; }
- MVT::ValueType getLocVT() const { return LocVT; }
-
- LocInfo getLocInfo() const { return HTP; }
-};
-
-
-/// CCAssignFn - This function assigns a location for Val, updating State to
-/// reflect the change.
-typedef bool CCAssignFn(unsigned ValNo, MVT::ValueType ValVT,
- MVT::ValueType LocVT, CCValAssign::LocInfo LocInfo,
- ISD::ArgFlagsTy ArgFlags, CCState &State);
-
-
-/// CCState - This class holds information needed while lowering arguments and
-/// return values. It captures which registers are already assigned and which
-/// stack slots are used. It provides accessors to allocate these values.
-class CCState {
- unsigned CallingConv;
- bool IsVarArg;
- const TargetMachine &TM;
- const TargetRegisterInfo &TRI;
- SmallVector<CCValAssign, 16> &Locs;
-
- unsigned StackOffset;
- SmallVector<uint32_t, 16> UsedRegs;
-public:
- CCState(unsigned CC, bool isVarArg, const TargetMachine &TM,
- SmallVector<CCValAssign, 16> &locs);
-
- void addLoc(const CCValAssign &V) {
- Locs.push_back(V);
- }
-
- const TargetMachine &getTarget() const { return TM; }
- unsigned getCallingConv() const { return CallingConv; }
- bool isVarArg() const { return IsVarArg; }
-
- unsigned getNextStackOffset() const { return StackOffset; }
-
- /// isAllocated - Return true if the specified register (or an alias) is
- /// allocated.
- bool isAllocated(unsigned Reg) const {
- return UsedRegs[Reg/32] & (1 << (Reg&31));
- }
-
- /// AnalyzeFormalArguments - Analyze an ISD::FORMAL_ARGUMENTS node,
- /// incorporating info about the formals into this state.
- void AnalyzeFormalArguments(SDNode *TheArgs, CCAssignFn Fn);
-
- /// AnalyzeReturn - Analyze the returned values of an ISD::RET node,
- /// incorporating info about the result values into this state.
- void AnalyzeReturn(SDNode *TheRet, CCAssignFn Fn);
-
- /// AnalyzeCallOperands - Analyze an ISD::CALL node, incorporating info
- /// about the passed values into this state.
- void AnalyzeCallOperands(SDNode *TheCall, CCAssignFn Fn);
-
- /// AnalyzeCallResult - Analyze the return values of an ISD::CALL node,
- /// incorporating info about the passed values into this state.
- void AnalyzeCallResult(SDNode *TheCall, CCAssignFn Fn);
-
-
- /// getFirstUnallocated - Return the first unallocated register in the set, or
- /// NumRegs if they are all allocated.
- unsigned getFirstUnallocated(const unsigned *Regs, unsigned NumRegs) const {
- for (unsigned i = 0; i != NumRegs; ++i)
- if (!isAllocated(Regs[i]))
- return i;
- return NumRegs;
- }
-
- /// AllocateReg - Attempt to allocate one register. If it is not available,
- /// return zero. Otherwise, return the register, marking it and any aliases
- /// as allocated.
- unsigned AllocateReg(unsigned Reg) {
- if (isAllocated(Reg)) return 0;
- MarkAllocated(Reg);
- return Reg;
- }
-
- /// Version of AllocateReg with extra register to be shadowed.
- unsigned AllocateReg(unsigned Reg, unsigned ShadowReg) {
- if (isAllocated(Reg)) return 0;
- MarkAllocated(Reg);
- MarkAllocated(ShadowReg);
- return Reg;
- }
-
- /// AllocateReg - Attempt to allocate one of the specified registers. If none
- /// are available, return zero. Otherwise, return the first one available,
- /// marking it and any aliases as allocated.
- unsigned AllocateReg(const unsigned *Regs, unsigned NumRegs) {
- unsigned FirstUnalloc = getFirstUnallocated(Regs, NumRegs);
- if (FirstUnalloc == NumRegs)
- return 0; // Didn't find the reg.
-
- // Mark the register and any aliases as allocated.
- unsigned Reg = Regs[FirstUnalloc];
- MarkAllocated(Reg);
- return Reg;
- }
-
- /// Version of AllocateReg with list of registers to be shadowed.
- unsigned AllocateReg(const unsigned *Regs, const unsigned *ShadowRegs,
- unsigned NumRegs) {
- unsigned FirstUnalloc = getFirstUnallocated(Regs, NumRegs);
- if (FirstUnalloc == NumRegs)
- return 0; // Didn't find the reg.
-
- // Mark the register and any aliases as allocated.
- unsigned Reg = Regs[FirstUnalloc], ShadowReg = ShadowRegs[FirstUnalloc];
- MarkAllocated(Reg);
- MarkAllocated(ShadowReg);
- return Reg;
- }
-
- /// 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));
- unsigned Result = StackOffset;
- StackOffset += Size;
- return Result;
- }
-
- // HandleByVal - Allocate a stack slot large enough to pass an argument by
- // value. The size and alignment information of the argument is encoded in its
- // parameter attribute.
- void HandleByVal(unsigned ValNo, MVT::ValueType ValVT,
- MVT::ValueType LocVT, CCValAssign::LocInfo LocInfo,
- int MinSize, int MinAlign, ISD::ArgFlagsTy ArgFlags);
-
-private:
- /// MarkAllocated - Mark a register and all of its aliases as allocated.
- void MarkAllocated(unsigned Reg);
-};
-
-
-
-} // end namespace llvm
-
-#endif
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