[llvm] [RISCV] Use QC.INSBI for OR with immediate when ORI isn't possible (PR #147349)

[Sudharsan Veeravalli via llvm-commits]

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@@ -681,6 +681,43 @@ bool RISCVDAGToDAGISel::trySignedBitfieldExtract(SDNode *Node) {
   return false;
 }
 
+bool RISCVDAGToDAGISel::trySignedBitfieldInsertInMask(SDNode *Node) {
+  // Supported only in Xqcibm for now.
+  if (!Subtarget->hasVendorXqcibm())
+    return false;
+
+  auto *N1C = dyn_cast<ConstantSDNode>(Node->getOperand(1));
+  if (!N1C)
+    return false;
+
+  int32_t C1 = N1C->getSExtValue();
+  if (!(isShiftedMask_32(C1) && !isInt<12>(C1)))
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svs-quic wrote:

Done.

https://github.com/llvm/llvm-project/pull/147349