_SigKill                 // if signal.Notify doesn't take it, exit quietly
	_SigThrow                // if signal.Notify doesn't take it, exit loudly
	_SigPanic                // if the signal is from the kernel, panic
	_SigDefault              // if the signal isn't explicitly requested, don't monitor it
	_SigGoExit               // cause all runtime procs to exit (only used on Plan 9).

	ir.Syms.WasmDiv = typecheck.LookupRuntimeVar("wasmDiv")
	ir.Syms.WasmTruncS = typecheck.LookupRuntimeVar("wasmTruncS")
	ir.Syms.WasmTruncU = typecheck.LookupRuntimeVar("wasmTruncU")
	ir.Syms.SigPanic = typecheck.LookupRuntimeFunc("sigpanic")
}

// AbiForBodylessFuncStackMap returns the ABI for a bodyless function's stack map.
// This is not necessarily the ABI used to call it.
// Currently (1.17 dev) such a stack map is always ABI0;