[llvm] [VPlan] Use VPWidenIntrinsicRecipe to support binary and unary operations with EVL-vectorization (PR #114205)

[Alexey Bataev via llvm-commits]

================
@@ -959,22 +956,30 @@ void VPWidenIntrinsicRecipe::execute(VPTransformState &State) {
 
   // Use vector version of the intrinsic.
   Module *M = State.Builder.GetInsertBlock()->getModule();
+  bool IsVPIntrinsic = VPIntrinsic::isVPIntrinsic(VectorIntrinsicID);
   Function *VectorF =
       Intrinsic::getOrInsertDeclaration(M, VectorIntrinsicID, TysForDecl);
   assert(VectorF && "Can't retrieve vector intrinsic.");
 
-  auto *CI = cast_or_null<CallInst>(getUnderlyingValue());
   SmallVector<OperandBundleDef, 1> OpBundles;
-  if (CI)
-    CI->getOperandBundlesAsDefs(OpBundles);
+  if (!IsVPIntrinsic) {
+    if (auto *CI = cast_or_null<CallInst>(getUnderlyingValue()))
+      CI->getOperandBundlesAsDefs(OpBundles);
+  }
 
-  CallInst *V = State.Builder.CreateCall(VectorF, Args, OpBundles);
+  Value *V = State.Builder.CreateCall(VectorF, Args, OpBundles);
 
-  setFlags(V);
+  if (IsVPIntrinsic) {
+    if (isa<FPMathOperator>(V))
+      // Currently vp-intrinsics only accept FMF flags.
+      setFlags(cast<Instruction>(V));
+  } else {
+    setFlags(cast<Instruction>(V));
+  }
----------------
alexey-bataev wrote:

```suggestion
      setFlags(V);
  } else {
    setFlags(V);
  }
```


https://github.com/llvm/llvm-project/pull/114205