================ @@ -199,6 +199,12 @@ TARGET_BUILTIN(__builtin_wasm_ref_is_null_extern, "ii", "nct", "reference-types" // return type. TARGET_BUILTIN(__builtin_wasm_ref_null_func, "i", "nct", "reference-types") +// Check if the runtime type of a function pointer matches its static type. Used +// to avoid "function signature mismatch" traps. Takes a function pointer, uses +// table.get to look up the pointer in __indirect_function_table and then +// ref.test to test the type. +TARGET_BUILTIN(__builtin_wasm_test_function_pointer_signature, "i.", "nct", "reference-types") ---------------- tlively wrote:
`ref.test` is only added with the GC proposal, so if we emit it with only reference-types enabled, the resulting binary will not validate in wasm-opt. We need to introduce a new `gc` feature that puts `"gc"` in the target features section, then make this builtin depend on that new feature. https://github.com/llvm/llvm-project/pull/150201 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
