[clang] [OpenCL] Put constant initializer globals into constant addrspace (PR #90048)

[Sven van Haastregt via cfe-commits]

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@@ -536,6 +536,8 @@ void AggExprEmitter::EmitArrayInit(Address DestPtr, llvm::ArrayType *AType,
     CodeGen::CodeGenModule &CGM = CGF.CGM;
     ConstantEmitter Emitter(CGF);
     LangAS AS = ArrayQTy.getAddressSpace();
+    if (CGF.getLangOpts().OpenCL)
+      AS = LangAS::opencl_constant;
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svenvh wrote:

The OpenCL language defines the constant address space for read-only variables.  Targets can decide for themselves how to map the language address space to a target address space (which is done further down at the GlobalVariable creation).

https://github.com/llvm/llvm-project/pull/90048