[llvm] [CodeGen] This patch fix a bug that may caused error for a self-defined target in SelectionDAG::getNode (PR #75320)

[yan zhou via llvm-commits]

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@@ -6858,8 +6858,9 @@ SDValue SelectionDAG::getNode(unsigned Opcode, const SDLoc &DL, EVT VT,
     // expanding copies of large vectors from registers. This only works for
     // fixed length vectors, since we need to know the exact number of
     // elements.
-    if (N2C && N1.getOperand(0).getValueType().isFixedLengthVector() &&
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zhou3968322 wrote:

yes, I have changed it.

https://github.com/llvm/llvm-project/pull/75320