[clang] [llvm] [PowerPC][X86] Make cpu id builtins target independent and lower for PPC (PR #68919)

[Amy Kwan via cfe-commits]

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@@ -1830,6 +1830,10 @@ void PPCLinuxAsmPrinter::emitEndOfAsmFile(Module &M) {
   PPCTargetStreamer *TS =
       static_cast<PPCTargetStreamer *>(OutStreamer->getTargetStreamer());
 
+  if (static_cast<const PPCTargetMachine &>(TM).hasGlibcHWCAPAccess())
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amy-kwan wrote:

Can we add more documentation regarding what we're doing here?

https://github.com/llvm/llvm-project/pull/68919