[llvm] [RISCV] Reduce spill/reload pairs when Xqcilo extension is enabled (PR #212807)

[Sudharsan Veeravalli via llvm-commits]

================
@@ -615,6 +640,18 @@ bool RISCVRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
       // instruction will add 4 to the immediate. If that would overflow 12
       // bits, we can't fold the offset.
       MI.getOperand(FIOperandNum + 1).ChangeToImmediate(0);
+    } else if (!isInt<12>(Val) && ST.hasVendorXqcilo() &&
+               getXqciloWideOpcode(Opc)) {
----------------
svs-quic wrote:

do we have a test case for this scenario?

https://github.com/llvm/llvm-project/pull/212807