[llvm] [DAGCombiner] Use APInt::isSubsetOf. NFC (PR #142029)

via llvm-commits llvm-commits at lists.llvm.org
Thu May 29 13:19:18 PDT 2025


llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-selectiondag

Author: Craig Topper (topperc)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/142029.diff


1 Files Affected:

- (modified) llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp (+1-1) 


``````````diff
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index e05f85ea3bd8e..00be9891b0ccb 100644
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -6813,7 +6813,7 @@ bool DAGCombiner::SearchForAndLoads(SDNode *N,
     // Some constants may need fixing up later if they are too large.
     if (auto *C = dyn_cast<ConstantSDNode>(Op)) {
       if ((N->getOpcode() == ISD::OR || N->getOpcode() == ISD::XOR) &&
-          (Mask->getAPIntValue() & C->getAPIntValue()) != C->getAPIntValue())
+          !C->getAPIntValue().isSubsetOf(Mask->getAPIntValue()))
         NodesWithConsts.insert(N);
       continue;
     }

``````````

</details>


https://github.com/llvm/llvm-project/pull/142029


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