[clang] [clang] Abort on unsupported uefi triples. (PR #124824)

[Paul Kirth via cfe-commits]

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@@ -6677,6 +6677,9 @@ const ToolChain &Driver::getToolChain(const ArgList &Args,
       TC = std::make_unique<toolchains::AMDGPUToolChain>(*this, Target, Args);
       break;
     case llvm::Triple::UEFI:
+      if (Target.getArch() != llvm::Triple::x86_64)
+        llvm::report_fatal_error("Currently the only architecture supported by "
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ilovepi wrote:

Pleasue use the diagnostics to output an error, instead of `report_fatal_error`. I'd guess that `computeTargetTriple` may be a better place to do such a check.  AIX is emitting an error there, that seems fairly close to your use case.

https://github.com/llvm/llvm-project/pull/124824