#include <SelectionDAGNodes.h>
Public Member Functions | |
| const APFloat & | getValueAPF () const |
| const ConstantFP * | getConstantFPValue () const |
| bool | isZero () const |
| isZero - Return true if the value is positive or negative zero. | |
| bool | isNaN () const |
| isNaN - Return true if the value is a NaN. | |
| bool | isExactlyValue (double V) const |
| bool | isExactlyValue (const APFloat &V) const |
Static Public Member Functions | |
| static bool | isValueValidForType (EVT VT, const APFloat &Val) |
| static bool | classof (const SDNode *N) |
Friends | |
| class | SelectionDAG |
Detailed Description
Definition at line 1240 of file SelectionDAGNodes.h.
Member Function Documentation
Definition at line 1277 of file SelectionDAGNodes.h.
References llvm::ISD::ConstantFP, llvm::SDNode::getOpcode(), and llvm::ISD::TargetConstantFP.
| const ConstantFP* llvm::ConstantFPSDNode::getConstantFPValue | ( | ) | const [inline] |
Definition at line 1250 of file SelectionDAGNodes.h.
| const APFloat& llvm::ConstantFPSDNode::getValueAPF | ( | ) | const [inline] |
Definition at line 1249 of file SelectionDAGNodes.h.
Referenced by llvm::SelectionDAG::getNode(), and isConstVecPow2().
| bool llvm::ConstantFPSDNode::isExactlyValue | ( | double | V | ) | const [inline] |
isExactlyValue - We don't rely on operator== working on double values, as it returns true for things that are clearly not equal, like -0.0 and 0.0. As such, this method can be used to do an exact bit-for-bit comparison of two floating point values. We leave the version with the double argument here because it's just so convenient to write "2.0" and the like. Without this function we'd have to duplicate its logic everywhere it's called.
Definition at line 1266 of file SelectionDAGNodes.h.
References llvm::APFloat::convert(), and llvm::APFloat::rmNearestTiesToEven.
Referenced by llvm::SelectionDAG::getNode().
isExactlyValue - We don't rely on operator== working on double values, as it returns true for things that are clearly not equal, like -0.0 and 0.0. As such, this method can be used to do an exact bit-for-bit comparison of two floating point values.
Definition at line 74 of file SelectionDAG.cpp.
| bool llvm::ConstantFPSDNode::isNaN | ( | ) | const [inline] |
isNaN - Return true if the value is a NaN.
Definition at line 1256 of file SelectionDAGNodes.h.
Definition at line 78 of file SelectionDAG.cpp.
References llvm::lltok::APFloat, llvm::SelectionDAG::EVTToAPFloatSemantics(), llvm::EVT::isFloatingPoint(), and llvm::APFloat::rmNearestTiesToEven.
| bool llvm::ConstantFPSDNode::isZero | ( | ) | const [inline] |
isZero - Return true if the value is positive or negative zero.
Definition at line 1253 of file SelectionDAGNodes.h.
Referenced by llvm::SelectionDAG::getNode().
Friends And Related Function Documentation
friend class SelectionDAG [friend] |
Reimplemented from llvm::SDNode.
Definition at line 1242 of file SelectionDAGNodes.h.
The documentation for this class was generated from the following files:
1.7.5.1