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Diffstat (limited to 'lib/compiler/doc')
| -rw-r--r-- | lib/compiler/doc/src/notes.xml | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/lib/compiler/doc/src/notes.xml b/lib/compiler/doc/src/notes.xml index 02e6203137..12429cf561 100644 --- a/lib/compiler/doc/src/notes.xml +++ b/lib/compiler/doc/src/notes.xml @@ -32,6 +32,53 @@ <p>This document describes the changes made to the Compiler application.</p> +<section><title>Compiler 7.4</title> + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + The compiler has been rewritten to internally use an + intermediate representation based on Static Single + Assignment (SSA). The new intermediate representation + makes more optimizations possible.</p> + <p> + Most noticeable is that the binary matching optimizations + are now applicable in many more circumstances than + before.</p> + <p> + Another noticeable change is that type optimizations are + now applied across local function calls, and will remove + a lot more redundant type tests than before.</p> + <p> + Own Id: OTP-14894 Aux Id: ERL-714 </p> + </item> + <item> + <p>Funs are no longer created when they are only used + locally, greatly improving the performance of named funs + and "fun-wrapped" macros.</p> + <p> + Own Id: OTP-15273 Aux Id: ERL-639 </p> + </item> + <item> + <p>All compiler options that can be given in the source + file can now also be given in the option list or from the + command line for <c>erlc</c>.</p> + <p>Specifically, the option + <c>{nowarn_deprecated_function,MFAs}</c> was only + recognized when given in the file with the attribute + <c>-compile()</c>. The option + <c>{nowarn_unused_function,FAs}</c> was incorrectly + documented to only work in a file, but it also worked + when given in the option list.</p> + <p> + Own Id: OTP-15456</p> + </item> + </list> + </section> + +</section> + <section><title>Compiler 7.3.1</title> <section><title>Fixed Bugs and Malfunctions</title> |