[llvm] [llvm-ifs] Handle more e_machine values for --target (PR #128559)

[Saleem Abdulrasool via llvm-commits]

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@@ -2018,6 +2019,9 @@ uint16_t convertArchNameToEMachine(StringRef Arch);
 /// Convert an ELF's e_machine value into an architecture name.
 StringRef convertEMachineToArchName(uint16_t EMachine);
 
+// Convert a triple's architecture to ELF's e_machine value.
+uint16_t convertTripleArchTypeToEMachine(Triple::ArchType ArchType);
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compnerd wrote:

I wonder if there is a good place to share this - feels like something we would need in the MC layer for the object file emission.

https://github.com/llvm/llvm-project/pull/128559