[llvm] [LV] Restrict widest induction type to be IntegerType (NFC) (PR #128173)

[Florian Hahn via llvm-commits]

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@@ -693,11 +694,11 @@ void LoopVectorizationLegality::addInductionPhi(
   const DataLayout &DL = Phi->getDataLayout();
 
   // Get the widest type.
-  if (!PhiTy->isFloatingPointTy()) {
+  if (PhiTy->isIntOrPtrTy()) {
     if (!WidestIndTy)
-      WidestIndTy = convertPointerToIntegerType(DL, PhiTy);
+      WidestIndTy = getInductionIntegerTy(DL, PhiTy);
     else
-      WidestIndTy = getWiderType(DL, PhiTy, WidestIndTy);
+      WidestIndTy = getWiderInductionTy(DL, PhiTy, WidestIndTy);
   }
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fhahn wrote:

can you add an `assert(PhiTy->isFloatingPointTy())` here?

https://github.com/llvm/llvm-project/pull/128173