[Lldb-commits] [clang-tools-extra] [libc] [flang] [clang] [lldb] [llvm] [libcxxabi] [libclc] [lld] [libcxx] [compiler-rt] [VPlan] Add new VPScalarCastRecipe, use for IV & step trunc. (PR #78113)

[via lldb-commits]

================
@@ -491,19 +491,41 @@ void VPlanTransforms::removeDeadRecipes(VPlan &Plan) {
 
 static VPValue *createScalarIVSteps(VPlan &Plan, const InductionDescriptor &ID,
                                     ScalarEvolution &SE, Instruction *TruncI,
-                                    Type *IVTy, VPValue *StartV,
-                                    VPValue *Step) {
+                                    VPValue *StartV, VPValue *Step) {
   VPBasicBlock *HeaderVPBB = Plan.getVectorLoopRegion()->getEntryBasicBlock();
   auto IP = HeaderVPBB->getFirstNonPhi();
   VPCanonicalIVPHIRecipe *CanonicalIV = Plan.getCanonicalIV();
-  Type *TruncTy = TruncI ? TruncI->getType() : IVTy;
   VPValue *BaseIV = CanonicalIV;
-  if (!CanonicalIV->isCanonical(ID.getKind(), StartV, Step, TruncTy)) {
-    BaseIV = new VPDerivedIVRecipe(ID, StartV, CanonicalIV, Step,
-                                   TruncI ? TruncI->getType() : nullptr);
+  VPTypeAnalysis TypeInfo(SE.getContext());
+  Type *StepTy = TypeInfo.inferScalarType(Step);
----------------
ayalz wrote:

```suggestion
```

https://github.com/llvm/llvm-project/pull/78113
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