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Eliminate the SetCCSDNode in favor of a CondCodeSDNode class. This pulls the

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CC out of the SetCC operation, making SETCC a standard ternary operation and
CC's a standard DAG leaf.  This will make it possible for other node to use
CC's as operands in the future...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22728 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2005-08-09 20:20:18 +00:00
parent 59b21c25d4
commit 7cf7e3f33f
5 changed files with 209 additions and 190 deletions
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20
include/llvm/CodeGen/SelectionDAGNodes.h
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@ -55,7 +55,7 @@ namespace ISD {
// Various leaf nodes.
Constant, ConstantFP, GlobalAddress, FrameIndex, ConstantPool,
BasicBlock, ExternalSymbol, VALUETYPE,
BasicBlock, ExternalSymbol, VALUETYPE, CONDCODE,
// CopyToReg - This node has chain and child nodes, and an associated
// register number. The instruction selector must guarantee that the value
@ -107,9 +107,9 @@ namespace ISD {
SELECT,
// SetCC operator - This evaluates to a boolean (i1) true value if the
// condition is true. These nodes are instances of the
// SetCCSDNode class, which contains the condition code as extra
// state.
// condition is true. The operands to this are the left and right operands
// to compare (ops #0, and #1) and the condition code to compare them with
// (op #2) as a CondCodeSDNode.
SETCC,
// ADD_PARTS/SUB_PARTS - These operators take two logical operands which are
@ -827,20 +827,20 @@ public:
}
};
class SetCCSDNode : public SDNode {
class CondCodeSDNode : public SDNode {
ISD::CondCode Condition;
protected:
friend class SelectionDAG;
SetCCSDNode(ISD::CondCode Cond, SDOperand LHS, SDOperand RHS)
: SDNode(ISD::SETCC, LHS, RHS), Condition(Cond) {
CondCodeSDNode(ISD::CondCode Cond)
: SDNode(ISD::CONDCODE, MVT::Other), Condition(Cond) {
}
public:
ISD::CondCode getCondition() const { return Condition; }
ISD::CondCode get() const { return Condition; }
static bool classof(const SetCCSDNode *) { return true; }
static bool classof(const CondCodeSDNode *) { return true; }
static bool classof(const SDNode *N) {
return N->getOpcode() == ISD::SETCC;
return N->getOpcode() == ISD::CONDCODE;
}
};