[clang] [llvm] [RISCV] Add Qualcomn uC Xqcili (load large immediates) extension (PR #130012)

[Sudharsan Veeravalli via llvm-commits]

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+# Xqcili - Qualcomm uC Load Large Immediate Extension
+# RUN: not llvm-mc -triple riscv32 -mattr=+experimental-xqcili < %s 2>&1 \
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svs-quic wrote:

Please add a run line with mattr=-experimental-xqcili

https://github.com/llvm/llvm-project/pull/130012