Inputs to crnor can come from operands with chains so if it is being used simply to negate such an operand, the repeated input cannot be CSE'd. This patch just adds a code-gen only instruction for this that takes a single input and duplicates it in the encoding of the underlying crnor.
chmeee craig.topper lei
- Group Reviewers
- rG0d253bbd3300: [PowerPC] Change CRNOT to a code gen single operand instruction