[llvm] [Exegesis] CPU selection, when native arch and target mismatch (PR #131014)

[via llvm-commits]

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+# RUN: not llvm-exegesis -mtriple=riscv64-unknown-linux-gnu -mode=latency --benchmark-phase=assemble-measured-code -opcode-name=ADD 2>&1 | FileCheck %s
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AnastasiyaChernikova wrote:

Thanks for the comment, I completely agree

https://github.com/llvm/llvm-project/pull/131014