[llvm] [SLP] NFC. Set NumOperands directly if IntrinsicInst is VL[0]. (PR #111103)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-transforms

Author: Han-Kuan Chen (HanKuanChen)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/111103.diff


1 Files Affected:

- (modified) llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp (+3-3) 


``````````diff
diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
index 27e43df4949273..c3df0fcaed4c2d 100644
--- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -2312,10 +2312,10 @@ class BoUpSLP {
       assert((empty() || VL.size() == getNumLanes()) &&
              "Expected same number of lanes");
       assert(isa<Instruction>(VL[0]) && "Expected instruction");
-      unsigned NumOperands = cast<Instruction>(VL[0])->getNumOperands();
       constexpr unsigned IntrinsicNumOperands = 2;
-      if (isa<IntrinsicInst>(VL[0]))
-        NumOperands = IntrinsicNumOperands;
+      unsigned NumOperands = isa<IntrinsicInst>(VL[0])
+                                 ? IntrinsicNumOperands
+                                 : cast<Instruction>(VL[0])->getNumOperands();
       OpsVec.resize(NumOperands);
       unsigned NumLanes = VL.size();
       for (unsigned OpIdx = 0; OpIdx != NumOperands; ++OpIdx) {

``````````

</details>


https://github.com/llvm/llvm-project/pull/111103