[clang] [llvm] [RISCV] Support RISC-V Profiles in -march option (PR #76357)

[Philip Reames via cfe-commits]

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@@ -36,6 +36,11 @@ struct RISCVSupportedExtension {
   }
 };
 
+struct RISCVProfile {
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preames wrote:

Very minor, but I believe you can use std::pair here instead.  

https://github.com/llvm/llvm-project/pull/76357