All Manuals > LispWorks User Guide and Reference Manual > 5 The Trace Facility > 5.6 Troubleshooting tracing > 5.6.2 Missing output

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There are many other optimizations built-in to the LispWorks compiler, which affect code generated according to the compiler qualities in effect at compile-time. For example if the compiler was set to inline structure accessors, then tracing structure accessors in code compiled with that setting will produce no output.

While debugging, you could re-compile the code at higher safety or run it interpreted, to obtain the trace output.

LispWorks User Guide and Reference Manual - 21 Dec 2011