[llvm] [DAG] expandVECTOR_COMPRESS - remove superfluous getFreeze. NFC. (PR #150062)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-selectiondag

Author: Simon Pilgrim (RKSimon)

<details>
<summary>Changes</summary>

freeze(freeze(extract_vector_elt(x,i))) -> freeze(extract_vector_elt(x,i))

---
Full diff: https://github.com/llvm/llvm-project/pull/150062.diff


1 Files Affected:

- (modified) llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp (+1-2) 


``````````diff
diff --git a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index f2238efab68f6..1764910861df4 100644
--- a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -11994,8 +11994,7 @@ SDValue TargetLowering::expandVECTOR_COMPRESS(SDNode *Node,
     // Get the mask value and add it to the current output position. This
     // either increments by 1 if MaskI is true or adds 0 otherwise.
     // Freeze in case we have poison/undef mask entries.
-    SDValue MaskI =
-        DAG.getFreeze(DAG.getExtractVectorElt(DL, MaskScalarVT, Mask, I));
+    SDValue MaskI = DAG.getExtractVectorElt(DL, MaskScalarVT, Mask, I);
     MaskI = DAG.getFreeze(MaskI);
     MaskI = DAG.getNode(ISD::TRUNCATE, DL, MVT::i1, MaskI);
     MaskI = DAG.getNode(ISD::ZERO_EXTEND, DL, PositionVT, MaskI);

``````````

</details>


https://github.com/llvm/llvm-project/pull/150062