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</header>
<p>This document describes the changes made to HiPE.</p>
+<section><title>Hipe 3.19</title>
+
+ <section><title>Fixed Bugs and Malfunctions</title>
+ <list>
+ <item>
+ <p>
+ Add function <c>hipe:erllvm_is_supported</c> to check
+ presence of suitable version of the LLVM tool chain as
+ well as supported hardware architecture. The old
+ <c>hipe:llvm_support_available</c> has been removed.</p>
+ <p>
+ Own Id: OTP-15385 Aux Id: PR-1986 </p>
+ </item>
+ <item>
+ <p>
+ Fix hipe LLVM for FreeBSD and other non-linux unix to use
+ /tmp/ instead of /dev/shm/.</p>
+ <p>
+ Own Id: OTP-15386 Aux Id: PR-1963 </p>
+ </item>
+ </list>
+ </section>
+
+
+ <section><title>Improvements and New Features</title>
+ <list>
+ <item>
+ <p>In OTP 22, HiPE (the native code compiler) is not
+ fully functional. The reasons for this are:</p>
+ <p>There are new BEAM instructions for binary matching
+ that the HiPE native code compiler does not support.</p>
+ <p>The new optimizations in the Erlang compiler create
+ new combination of instructions that HiPE currently does
+ not handle correctly.</p>
+ <p>If erlc is invoked with the <c>+native</c> option, and
+ if any of the new binary matching instructions are used,
+ the compiler will issue a warning and produce a BEAM file
+ without native code.</p>
+ <p>
+ Own Id: OTP-15596</p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
<section><title>Hipe 3.18.3</title>
<section><title>Fixed Bugs and Malfunctions</title>