[clang] [FMV][AIX] Implement target_clones (PR #177428)

[zhijian lin via cfe-commits]

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@@ -217,8 +197,36 @@ Value *CodeGenFunction::EmitPPCBuiltinExpr(unsigned BuiltinID,
 #undef PPC_FAWORD_HWCAP
 #undef PPC_FAWORD_HWCAP2
 #undef PPC_FAWORD_CPUID
-  }
+  } else
+    assert(0 && "unexpected builtin");
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diggerlin wrote:

suggest that moving the assert to begin of the function ,  it is more readable.

https://github.com/llvm/llvm-project/pull/177428