[clang] [Driver][Sparc] Default to -mcpu=v9 for 32-bit Linux/sparc64 (PR #109278)

[John Paul Adrian Glaubitz via cfe-commits]

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@@ -125,7 +126,9 @@ std::string sparc::getSparcTargetCPU(const Driver &D, const ArgList &Args,
     return std::string(CPUName);
   }
 
-  if (Triple.getArch() == llvm::Triple::sparc && Triple.isOSSolaris())
+  Distro Dist(D.getVFS(), Triple);
+  if (Triple.getArch() == llvm::Triple::sparc &&
+      (Triple.isOSSolaris() || Dist.IsDebian() || Dist.IsGentoo()))
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glaubitz wrote:

There is the very popular SPARC Leon CPU that is used by ESA among other important customers and that uses V8 as the baseline. And Linux is supported and actively maintained on Leon.

https://github.com/llvm/llvm-project/pull/109278