[llvm] [LV] Support float and pointer conditional scalar assignments (PR #184101)

[Sander de Smalen via llvm-commits]

================
@@ -627,6 +627,13 @@ AArch64TTIImpl::getIntrinsicInstrCost(const IntrinsicCostAttributes &ICA,
     if (VTy->getElementCount() == ElementCount::getScalable(1))
       return InstructionCost::getInvalid();
 
+  // Likewise if any of the operands is a <vscale x 1 x eltty>.
+  for (const Type *ArgTy : ICA.getArgTypes()) {
+    if (auto *ArgVTy = dyn_cast<ScalableVectorType>(ArgTy))
+      if (ArgVTy->getElementCount() == ElementCount::getScalable(1))
+        return InstructionCost::getInvalid();
+  }
+
----------------
sdesmalen-arm wrote:

Yes, it's not necessary for this PR, I'll move it out.

https://github.com/llvm/llvm-project/pull/184101