================
@@ -1469,6 +1464,47 @@ void VPReplicateRecipe::print(raw_ostream &O, const
Twine &Indent,
}
#endif
+Value *VPScalarCastRecipe ::generate(VPTransformState &State, unsigned Part) {
+ assert(vputils::onlyFirstLaneUsed(this) &&
+ "Codegen only implemented for first lane.");
+ switch (Opcode) {
+ case Instruction::SExt:
+ case Instruction::ZExt:
+ case Instruction::Trunc: {
+ Value *Op = State.get(getOperand(0), VPIteration(Part, 0));
+ return State.Builder.CreateCast(Instruction::CastOps(Opcode), Op,
ResultTy);
+ }
+ default:
+ llvm_unreachable("opcode not implemented yet");
+ }
+}
+
+void VPScalarCastRecipe ::execute(VPTransformState &State) {
+ bool UniformAcrossUFs = all_of(operands(), [](VPValue *Op) {
----------------
ayalz wrote:
```suggestion
bool LoopInvariant = all_of(operands(), [](VPValue *Op) {
```
this checks more than uniformity across UFs.
And if it is invariance we're checking, we can alternatively check if the
recipe itself resides outside vector regions (e.g., has been LICM'd), rather
than all of its operands.
https://github.com/llvm/llvm-project/pull/78113
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