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-//===- TargetCallingConv.td - Target Calling Conventions ---*- tablegen -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines the target-independent interfaces with which targets
-// describe their calling conventions.
-//
-//===----------------------------------------------------------------------===//
-
-class CCAction;
-class CallingConv;
-
-/// CCPredicateAction - Instances of this class check some predicate, then
-/// delegate to another action if the predicate is true.
-class CCPredicateAction<CCAction A> : CCAction {
- CCAction SubAction = A;
-}
-
-/// CCIfType - If the current argument is one of the specified types, apply
-/// Action A.
-class CCIfType<list<ValueType> vts, CCAction A> : CCPredicateAction<A> {
- list<ValueType> VTs = vts;
-}
-
-/// CCIf - If the predicate matches, apply A.
-class CCIf<string predicate, CCAction A> : CCPredicateAction<A> {
- string Predicate = predicate;
-}
-
-/// CCIfByVal - If the current argument has ByVal parameter attribute, apply
-/// Action A.
-class CCIfByVal<CCAction A> : CCIf<"ArgFlags.isByVal()", A> {
-}
-
-/// CCIfCC - Match of the current calling convention is 'CC'.
-class CCIfCC<string CC, CCAction A>
- : CCIf<!strconcat("State.getCallingConv() == ", CC), A> {}
-
-/// CCIfInReg - If this argument is marked with the 'inreg' attribute, apply
-/// the specified action.
-class CCIfInReg<CCAction A> : CCIf<"ArgFlags.isInReg()", A> {}
-
-/// CCIfNest - If this argument is marked with the 'nest' attribute, apply
-/// the specified action.
-class CCIfNest<CCAction A> : CCIf<"ArgFlags.isNest()", A> {}
-
-/// CCIfNotVarArg - If the current function is not vararg - apply the action
-class CCIfNotVarArg<CCAction A> : CCIf<"!State.isVarArg()", A> {}
-
-/// CCAssignToReg - This action matches if there is a register in the specified
-/// list that is still available. If so, it assigns the value to the first
-/// available register and succeeds.
-class CCAssignToReg<list<Register> regList> : CCAction {
- list<Register> RegList = regList;
-}
-
-/// CCAssignToRegWithShadow - Same as CCAssignToReg, but with list of registers
-/// which became shadowed, when some register is used.
-class CCAssignToRegWithShadow<list<Register> regList,
- list<Register> shadowList> : CCAction {
- list<Register> RegList = regList;
- list<Register> ShadowRegList = shadowList;
-}
-
-/// CCAssignToStack - This action always matches: it assigns the value to a
-/// stack slot of the specified size and alignment on the stack. If size is
-/// zero then the ABI size is used; if align is zero then the ABI alignment
-/// is used - these may depend on the target or subtarget.
-class CCAssignToStack<int size, int align> : CCAction {
- int Size = size;
- int Align = align;
-}
-
-/// CCPassByVal - This action always matches: it assigns the value to a stack
-/// slot to implement ByVal aggregate parameter passing. Size and alignment
-/// specify the minimum size and alignment for the stack slot.
-class CCPassByVal<int size, int align> : CCAction {
- int Size = size;
- int Align = align;
-}
-
-/// CCPromoteToType - If applied, this promotes the specified current value to
-/// the specified type.
-class CCPromoteToType<ValueType destTy> : CCAction {
- ValueType DestTy = destTy;
-}
-
-/// CCDelegateTo - This action invokes the specified sub-calling-convention. It
-/// is successful if the specified CC matches.
-class CCDelegateTo<CallingConv cc> : CCAction {
- CallingConv CC = cc;
-}
-
-/// CallingConv - An instance of this is used to define each calling convention
-/// that the target supports.
-class CallingConv<list<CCAction> actions> {
- list<CCAction> Actions = actions;
-}