[llvm] [GlobalISel] Fix dangling reference in CombinerHelper::matchCombineExtractedVectorLoad (PR #134363)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-globalisel

Author: None (KRM7)

<details>
<summary>Changes</summary>

The `LegalityQuery` object contains references to the temporary objects `{VecEltTy, PtrTy}` and `{MMDesc}`.

---
Full diff: https://github.com/llvm/llvm-project/pull/134363.diff


1 Files Affected:

- (modified) llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp (+2-3) 


``````````diff
diff --git a/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
index bab0c1596ca40..fed1dc53f9bb8 100644
--- a/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
@@ -1411,9 +1411,8 @@ bool CombinerHelper::matchCombineExtractedVectorLoad(
 
   LegalityQuery::MemDesc MMDesc(*NewMMO);
 
-  LegalityQuery Q = {TargetOpcode::G_LOAD, {VecEltTy, PtrTy}, {MMDesc}};
-
-  if (!isLegalOrBeforeLegalizer(Q))
+  if (!isLegalOrBeforeLegalizer(
+          {TargetOpcode::G_LOAD, {VecEltTy, PtrTy}, {MMDesc}}))
     return false;
 
   // Load must be allowed and fast on the target.

``````````

</details>


https://github.com/llvm/llvm-project/pull/134363