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With success I have built and used an fpc-3.3.1 based LLVM compiler.
The FPC LLVM Wiki <a class="moz-txt-link-rfc2396E" href="https://wiki.freepascal.org/LLVM"><https://wiki.freepascal.org/LLVM></a> says that
"<span
style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-family: sans-serif; font-size: 12.7px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: auto; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration: none; display: inline !important; float: none;">the
compiler itself on x86-64 is about 10% faster when compiled with
LLVM on an Intel Haswell processor, or 18% if you also enable
link-time optimization." I could not find how to do that (build
the compiler itself with llvm) as it requires starting with an
fpc-3.2.2 compiler.<br>
<br>
Thanks,<br>
<br>
Adriaan van Os<br>
<br>
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