/// all ConstantFPSDNode or undef.
bool isBuildVectorOfConstantFPSDNodes(const SDNode *N);
- /// Return true if the specified node is a
- /// ISD::SCALAR_TO_VECTOR node or a BUILD_VECTOR node where only the low
- /// element is not an undef.
- bool isScalarToVector(const SDNode *N);
-
/// Return true if the node has at least one operand
/// and all operands of the specified node are ISD::UNDEF.
bool allOperandsUndef(const SDNode *N);
return nullptr;
}
- // If this is a pseudo op, like copyfromreg, look to see if there is a
- // real target node glued to it. If so, return the target node.
- const SDNode *getGluedMachineNode() const {
- const SDNode *FoundNode = this;
-
- // Climb up glue edges until a machine-opcode node is found, or the
- // end of the chain is reached.
- while (!FoundNode->isMachineOpcode()) {
- const SDNode *N = FoundNode->getGluedNode();
- if (!N) break;
- FoundNode = N;
- }
-
- return FoundNode;
- }
-
/// If this node has a glue value with a user, return
/// the user (there is at most one). Otherwise return NULL.
SDNode *getGluedUser() const {