[clang] [llvm] [AMDGPU] Introduce GFX9/10.1/10.3/11 Generic Targets (PR #76955)

[Matt Arsenault via cfe-commits]

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@@ -279,13 +279,25 @@ void AMDGPUTargetInfo::getTargetDefines(const LangOptions &Opts,
   if (GPUKind == llvm::AMDGPU::GK_NONE && !IsHIPHost)
     return;
 
-  StringRef CanonName = isAMDGCN(getTriple()) ? getArchNameAMDGCN(GPUKind)
-                                              : getArchNameR600(GPUKind);
+  std::string CanonName = (isAMDGCN(getTriple()) ? getArchNameAMDGCN(GPUKind)
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arsenm wrote:

SmallString? 

https://github.com/llvm/llvm-project/pull/76955