[clang] [AMDGPU][SPIRV] Use SPIR-V syncscopes for some AMDGCN BIs (PR #154867)

[Alex Voicu via cfe-commits]

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@@ -227,6 +227,12 @@ void CodeGenFunction::ProcessOrderScopeAMDGCN(Value *Order, Value *Scope,
   // Some of the atomic builtins take the scope as a string name.
   StringRef scp;
   if (llvm::getConstantStringInfo(Scope, scp)) {
+    if (getTarget().getTriple().isSPIRV()) {
+      if (scp == "agent")
+        scp = "device";
+      else if (scp == "wavefront")
+        scp = "subgroup";
+    }
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AlexVlx wrote:

Done, thank you.

https://github.com/llvm/llvm-project/pull/154867