[clang] [CIR] Cast alloca for function parameter to the right address space (PR #220836)

[Mariya Podchishchaeva via cfe-commits]

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@@ -488,6 +488,18 @@ void CIRGenFunction::emitFunctionProlog(const FunctionArgList &args,
                    convertType(paramVar->getType()), paramLoc, alignment,
                    /*insertIntoFnEntryBlock=*/true);
 
+    mlir::ptr::MemorySpaceAttrInterface srcAddrSpace =
+        getCIRAllocaAddressSpace();
+    mlir::ptr::MemorySpaceAttrInterface destAddrSpace =
+        cir::toCIRAddressSpaceAttr(getMLIRContext(),
+                                   paramVar->getType().getAddressSpace());
+    if (srcAddrSpace != destAddrSpace) {
+      mlir::Type destPtrTy = builder.getPointerTo(
+          (cast<cir::PointerType>(addrVal.getType())).getPointee(),
+          destAddrSpace);
+      addrVal = performAddrSpaceCast(addrVal, destPtrTy);
+    }
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Fznamznon wrote:

Sure, why not


https://github.com/llvm/llvm-project/pull/220836