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Add support for basic blocks, unary/binary unspecs, conditional branches, ...

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7874 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-08-15 04:52:51 +00:00
parent f3c274d4a6
commit f4f5f8bcaa
1 changed files with 27 additions and 4 deletions
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31
include/llvm/CodeGen/SelectionDAG.h
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@ -22,6 +22,7 @@
class Value;
class Type;
class Instruction;
class CallInst;
class BasicBlock;
class MachineBasicBlock;
class MachineFunction;
@ -45,8 +46,8 @@ namespace ISD {
// ProtoNodes are nodes that are only half way constructed.
ProtoNode,
// Leaf nodes.
Constant, FrameIndex,
// Leaf nodes
Constant, FrameIndex, BasicBlock,
// Simple binary arithmetic operators
Plus, Minus, Times, SDiv, UDiv, SRem, URem,
@ -54,11 +55,17 @@ namespace ISD {
// Bitwise operators
And, Or, Xor,
// Comparisons
SetEQ, SetNE, SetLT, SetLE, SetGT, SetGE,
// Control flow instructions
Br, Switch, Ret, RetVoid,
Br, BrCond, Switch, Ret, RetVoid,
// Other operators
Load, Store, PHI, Call,
// Unknown operators, of a specified arity
Unspec1, Unspec2
};
}
@ -189,6 +196,13 @@ public:
assert(NT != ISD::ProtoNode && "Cannot specify uses for a protonode!");
Uses.reserve(2); Uses.push_back(N1); Uses.push_back(N2);
}
SelectionDAGNode(ISD::NodeType NT, MVT::ValueType VT, MachineBasicBlock *bb,
SelectionDAGNode *N1, SelectionDAGNode *N2,
SelectionDAGNode *N3)
: NodeType(NT), ValueType(VT), BB(bb), ValList(0), Costs(0) {
assert(NT != ISD::ProtoNode && "Cannot specify uses for a protonode!");
Uses.reserve(3); Uses.push_back(N1); Uses.push_back(N2); Uses.push_back(N3);
}
~SelectionDAGNode() { delete [] Costs; delete ValList; }
@ -295,7 +309,12 @@ struct SelectionDAGTargetBuilder {
/// current function. If any of the incoming arguments lives on the stack,
/// this method should also create the stack slots for the arguments as
/// necessary.
virtual void expandArguments(SelectionDAG &SD, MachineFunction &MF) = 0;
virtual void expandArguments(SelectionDAG &SD) = 0;
/// expandCall - This method is called once per function call by the
/// SelectionDAG construction algorithm. It must add DAG nodes to the
/// SelectionDAG specified to perform that call.
virtual void expandCall(SelectionDAG &SD, CallInst &CI) = 0;
};
namespace ISD {
@ -310,6 +329,8 @@ namespace ISD {
FrameIndex_i32_Slot,
FrameIndex_i64_Slot,
BasicBlock_i32_Slot,
BasicBlock_i64_Slot,
NumBuiltinSlots
};
}
@ -322,6 +343,8 @@ struct ReducedValue : public SelectionDAGReducedValue {
typedef ReducedValue<int, ISD::FrameIndex_i32_Slot > ReducedValue_FrameIndex_i32;
typedef ReducedValue<int, ISD::FrameIndex_i64_Slot > ReducedValue_FrameIndex_i64;
typedef ReducedValue<MachineBasicBlock*, ISD::BasicBlock_i32_Slot > ReducedValue_BasicBlock_i32;
typedef ReducedValue<MachineBasicBlock*, ISD::BasicBlock_i64_Slot > ReducedValue_BasicBlock_i64;
typedef ReducedValue<bool , ISD::Constant_i1_Slot > ReducedValue_Constant_i1;
typedef ReducedValue<unsigned char , ISD::Constant_i8_Slot > ReducedValue_Constant_i8;