================
@@ -210,6 +223,193 @@ void CIRGenModule::emitGlobalDefinition(clang::GlobalDecl
gd,
llvm_unreachable("Invalid argument to CIRGenModule::emitGlobalDefinition");
}
+static bool shouldBeInCOMDAT(CIRGenModule &cgm, const Decl &d) {
+ assert(!cir::MissingFeatures::supportComdat());
+
+ if (d.hasAttr<SelectAnyAttr>())
+ return true;
+
+ GVALinkage linkage;
+ if (auto *vd = dyn_cast<VarDecl>(&d))
+ linkage = cgm.getASTContext().GetGVALinkageForVariable(vd);
+ else
+ linkage =
+ cgm.getASTContext().GetGVALinkageForFunction(cast<FunctionDecl>(&d));
+
+ switch (linkage) {
+ case clang::GVA_Internal:
+ case clang::GVA_AvailableExternally:
+ case clang::GVA_StrongExternal:
+ return false;
+ case clang::GVA_DiscardableODR:
+ case clang::GVA_StrongODR:
+ return true;
+ }
+ llvm_unreachable("No such linkage");
+}
+
+// TODO(CIR): this could be a common method between LLVM codegen.
----------------
andykaylor wrote:
Can you do that as part of this change? Maybe move this into ASTContext?
https://github.com/llvm/llvm-project/pull/129072
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