6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-02-07 14:33:15 +00:00
Code Issues Projects Releases Wiki Activity

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

Browse Source 
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
include/llvm/CodeGen/SelectionDAG.h
View File

@ -22,6 +22,7 @@
class Value; class Value;
class Type; class Type;
class Instruction; class Instruction;
class CallInst;
class BasicBlock; class BasicBlock;
class MachineBasicBlock; class MachineBasicBlock;
class MachineFunction; class MachineFunction;
@ -45,8 +46,8 @@ namespace ISD {
// ProtoNodes are nodes that are only half way constructed. // ProtoNodes are nodes that are only half way constructed.
ProtoNode, ProtoNode,
// Leaf nodes. // Leaf nodes
Constant, FrameIndex, Constant, FrameIndex, BasicBlock,
// Simple binary arithmetic operators // Simple binary arithmetic operators
Plus, Minus, Times, SDiv, UDiv, SRem, URem, Plus, Minus, Times, SDiv, UDiv, SRem, URem,
@ -54,11 +55,17 @@ namespace ISD {
// Bitwise operators // Bitwise operators
And, Or, Xor, And, Or, Xor,
// Comparisons
SetEQ, SetNE, SetLT, SetLE, SetGT, SetGE,
// Control flow instructions // Control flow instructions
Br, Switch, Ret, RetVoid, Br, BrCond, Switch, Ret, RetVoid,
// Other operators // Other operators
Load, Store, PHI, Call, 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!"); assert(NT != ISD::ProtoNode && "Cannot specify uses for a protonode!");
Uses.reserve(2); Uses.push_back(N1); Uses.push_back(N2); 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; } ~SelectionDAGNode() { delete [] Costs; delete ValList; }
@ -295,7 +309,12 @@ struct SelectionDAGTargetBuilder {
/// current function. If any of the incoming arguments lives on the stack, /// current function. If any of the incoming arguments lives on the stack,
/// this method should also create the stack slots for the arguments as /// this method should also create the stack slots for the arguments as
/// necessary. /// 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 { namespace ISD {
@ -310,6 +329,8 @@ namespace ISD {
FrameIndex_i32_Slot, FrameIndex_i32_Slot,
FrameIndex_i64_Slot, FrameIndex_i64_Slot,
BasicBlock_i32_Slot,
BasicBlock_i64_Slot,
NumBuiltinSlots NumBuiltinSlots
}; };
} }
@ -322,6 +343,8 @@ struct ReducedValue : public SelectionDAGReducedValue {
typedef ReducedValue<int, ISD::FrameIndex_i32_Slot > ReducedValue_FrameIndex_i32; typedef ReducedValue<int, ISD::FrameIndex_i32_Slot > ReducedValue_FrameIndex_i32;
typedef ReducedValue<int, ISD::FrameIndex_i64_Slot > ReducedValue_FrameIndex_i64; 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<bool , ISD::Constant_i1_Slot > ReducedValue_Constant_i1;
typedef ReducedValue<unsigned char , ISD::Constant_i8_Slot > ReducedValue_Constant_i8; typedef ReducedValue<unsigned char , ISD::Constant_i8_Slot > ReducedValue_Constant_i8;