[LV] Set imbounds flag using CreateGEP in VPWidenMemInst (NFC).

This avoids having to cast the result of the builder to
GetElementPtrInst.

diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index 1054f6a..0b71d30 100644 (file)
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -9603,7 +9603,7 @@ void VPWidenMemoryInstructionRecipe::execute(VPTransformState &State) {
 
   const auto CreateVecPtr = [&](unsigned Part, Value *Ptr) -> Value * {
     // Calculate the pointer for the specific unroll-part.
-    GetElementPtrInst *PartPtr = nullptr;
+    Value *PartPtr = nullptr;
 
     // Use i32 for the gep index type when the value is constant,
     // or query DataLayout for a more suitable index type otherwise.
@@ -9627,20 +9627,15 @@ void VPWidenMemoryInstructionRecipe::execute(VPTransformState &State) {
       // LastLane = 1 - RunTimeVF
       Value *LastLane =
           Builder.CreateSub(ConstantInt::get(IndexTy, 1), RunTimeVF);
+      PartPtr = Builder.CreateGEP(ScalarDataTy, Ptr, NumElt, "", InBounds);
       PartPtr =
-          cast<GetElementPtrInst>(Builder.CreateGEP(ScalarDataTy, Ptr, NumElt));
-      PartPtr->setIsInBounds(InBounds);
-      PartPtr = cast<GetElementPtrInst>(
-          Builder.CreateGEP(ScalarDataTy, PartPtr, LastLane));
-      PartPtr->setIsInBounds(InBounds);
+          Builder.CreateGEP(ScalarDataTy, PartPtr, LastLane, "", InBounds);
       if (isMaskRequired) // Reverse of a null all-one mask is a null mask.
         BlockInMaskParts[Part] =
             Builder.CreateVectorReverse(BlockInMaskParts[Part], "reverse");
     } else {
       Value *Increment = createStepForVF(Builder, IndexTy, State.VF, Part);
-      PartPtr = cast<GetElementPtrInst>(
-          Builder.CreateGEP(ScalarDataTy, Ptr, Increment));
-      PartPtr->setIsInBounds(InBounds);
+      PartPtr = Builder.CreateGEP(ScalarDataTy, Ptr, Increment, "", InBounds);
     }
 
     unsigned AddressSpace = Ptr->getType()->getPointerAddressSpace();