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

[Zarko Todorovski via cfe-commits]

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@@ -3063,14 +3026,93 @@ void CodeGenFunction::EmitMultiVersionResolver(
     return;
   case llvm::Triple::riscv32:
   case llvm::Triple::riscv64:
-  case llvm::Triple::riscv32be:
-  case llvm::Triple::riscv64be:
     EmitRISCVMultiVersionResolver(Resolver, Options);
     return;
-
+  case llvm::Triple::ppc:
+  case llvm::Triple::ppc64:
+    if (getContext().getTargetInfo().getTriple().isOSAIX()) {
+      EmitPPCAIXMultiVersionResolver(Resolver, Options);
+      return;
+    }
+    [[fallthrough]];
   default:
-    assert(false && "Only implemented for x86, AArch64 and RISC-V targets");
+    assert(false &&
+           "Only implemented for x86, AArch64, RISC-V, and PowerPC targets");
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ZarkoT wrote:

Do we support this on ppc64le? 

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