<div dir="ltr"><div>Thanks but it would appear that these just say if the code has been optimised, not what the optimised level is.</div><div><br></div><div>eg. Can't tell the difference between -O1 and -Og.</div><div><br></div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Jun 30, 2020 at 3:15 PM Bevin Brett <<a href="mailto:bevin_brett@hotmail.com">bevin_brett@hotmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">




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Try these <br>
<a href="https://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html#Common-Predefined-Macros" id="gmail-m_6583921501453053694LPlnk463608" target="_blank">https://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html#Common-Predefined-Macros</a><br>
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<div id="gmail-m_6583921501453053694LPTitle321895" style="font-size:21px;font-weight:300;margin-right:8px;font-family:wf_segoe-ui_light,"Segoe UI Light","Segoe WP Light","Segoe UI","Segoe WP",Tahoma,Arial,sans-serif;margin-bottom:12px">
<a id="gmail-m_6583921501453053694LPUrlAnchor321895" href="https://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html#Common-Predefined-Macros" style="text-decoration:none" target="_blank">Common Predefined Macros (The C Preprocessor)</a></div>
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3.7.2 Common Predefined Macros. The common predefined macros are GNU C extensions. They are available with the same meanings regardless of the machine or operating system on which you are using GNU C or GNU Fortran.</div>
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<a href="http://gcc.gnu.org" target="_blank">gcc.gnu.org</a></div>
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<code>__OPTIMIZE__</code></dt><dt style="color:rgb(0,0,0);font-family:"Times New Roman";font-size:medium;background-color:rgb(255,255,255)">
<code>__OPTIMIZE_SIZE__</code></dt><dt style="color:rgb(0,0,0);font-family:"Times New Roman";font-size:medium;background-color:rgb(255,255,255)">
<code>__NO_INLINE__</code></dt><dd style="color:rgb(0,0,0);font-family:"Times New Roman";font-size:medium;background-color:rgb(255,255,255)">
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