[clang] [AIX] recognize vsr in inline asm for AIX (PR #68476)

[Hubert Tong via cfe-commits]

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@@ -828,10 +829,7 @@ const TargetInfo::AddlRegName GCCAddlRegNames[] = {
 };
 
 ArrayRef<TargetInfo::AddlRegName> PPCTargetInfo::getGCCAddlRegNames() const {
-  if (ABI == "elfv2")
-    return llvm::ArrayRef(GCCAddlRegNames);
-  else
-    return TargetInfo::getGCCAddlRegNames();
+  return llvm::ArrayRef(GCCAddlRegNames);
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hubert-reinterpretcast wrote:

@stefanp-ibm, GCC does accept these register names for ELFv1: https://github.com/llvm/llvm-project/pull/68476#discussion_r1349529109

For the compiler, I think the main responsibility would be to understand that these registers may overlay non-volatile FP and VMX registers.

https://github.com/llvm/llvm-project/pull/68476