[llvm] [NFC][indvars] Remove unused code in WidenIV::widenLoopCompare (PR #73506)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-transforms

Author: Wenju He (wenju-he)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/73506.diff


1 Files Affected:

- (modified) llvm/lib/Transforms/Utils/SimplifyIndVar.cpp (-4) 


``````````diff
diff --git a/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp b/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp
index a23ac41acaa58aa..a1d09fd73c29129 100644
--- a/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp
+++ b/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp
@@ -1493,10 +1493,6 @@ bool WidenIV::widenLoopCompare(WidenIV::NarrowIVDefUse DU) {
   assert(CastWidth <= IVWidth && "Unexpected width while widening compare.");
 
   // Widen the compare instruction.
-  auto *InsertPt = getInsertPointForUses(DU.NarrowUse, DU.NarrowDef, DT, LI);
-  if (!InsertPt)
-    return false;
-  IRBuilder<> Builder(InsertPt);
   DU.NarrowUse->replaceUsesOfWith(DU.NarrowDef, DU.WideDef);
 
   // Widen the other operand of the compare, if necessary.

``````````

</details>


https://github.com/llvm/llvm-project/pull/73506