[llvm] [Analysis] Remove an unnecessary cast (NFC) (PR #155977)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-analysis

Author: Kazu Hirata (kazutakahirata)

<details>
<summary>Changes</summary>

getParent() already returns Function *.


---
Full diff: https://github.com/llvm/llvm-project/pull/155977.diff


1 Files Affected:

- (modified) llvm/lib/Analysis/BasicAliasAnalysis.cpp (+3-3) 


``````````diff
diff --git a/llvm/lib/Analysis/BasicAliasAnalysis.cpp b/llvm/lib/Analysis/BasicAliasAnalysis.cpp
index 86a2edbd8bd41..61f80103e55b5 100644
--- a/llvm/lib/Analysis/BasicAliasAnalysis.cpp
+++ b/llvm/lib/Analysis/BasicAliasAnalysis.cpp
@@ -227,9 +227,9 @@ EarliestEscapeAnalysis::getCapturesBefore(const Value *Object,
   auto Iter = EarliestEscapes.try_emplace(Object);
   if (Iter.second) {
     std::pair<Instruction *, CaptureComponents> EarliestCapture =
-        FindEarliestCapture(
-            Object, *const_cast<Function *>(DT.getRoot()->getParent()),
-            /*ReturnCaptures=*/false, DT, CaptureComponents::Provenance);
+        FindEarliestCapture(Object, *DT.getRoot()->getParent(),
+                            /*ReturnCaptures=*/false, DT,
+                            CaptureComponents::Provenance);
     if (EarliestCapture.first)
       Inst2Obj[EarliestCapture.first].push_back(Object);
     Iter.first->second = EarliestCapture;

``````````

</details>


https://github.com/llvm/llvm-project/pull/155977