[clang] [llvm] [clang][OpenMP][SPIR-V] Fix AS of globals and set the default AS to 4 (PR #135251)

[Alex Voicu via cfe-commits]

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@@ -1217,11 +1217,13 @@ void CGOpenMPRuntimeGPU::emitParallelCall(CodeGenFunction &CGF,
     CGBuilderTy &Bld = CGF.Builder;
     llvm::Value *NumThreadsVal = NumThreads;
     llvm::Function *WFn = WrapperFunctionsMap[OutlinedFn];
+    llvm::FunctionCallee RuntimeFn = OMPBuilder.getOrCreateRuntimeFunction(
+        CGM.getModule(), OMPRTL___kmpc_parallel_51);
     llvm::Value *ID = llvm::ConstantPointerNull::get(CGM.Int8PtrTy);
     if (WFn)
       ID = Bld.CreateBitOrPointerCast(WFn, CGM.Int8PtrTy);
-    llvm::Value *FnPtr = Bld.CreateBitOrPointerCast(OutlinedFn, CGM.Int8PtrTy);
-
+    llvm::Value *FnPtr = Bld.CreateAddrSpaceCast(OutlinedFn, CGM.Int8PtrTy);
+    FnPtr = Bld.CreateBitOrPointerCast(FnPtr, CGM.Int8PtrTy);
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AlexVlx wrote:

This seems spurious with opaque pointers?

https://github.com/llvm/llvm-project/pull/135251