Commit 7f03d155 authored by Bill Wendling's avatar Bill Wendling
Browse files

Update. 

llvm-svn: 156734
parent be4234a9

llvm/docs/ReleaseNotes.html

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@@ -3,7 +3,7 @@ 
<html>

<head>

  <meta http-equiv="Content-Type" content="text/html; charset=utf-8">

  <link rel="stylesheet" href="llvm.css" type="text/css">

  <link rel="stylesheet" href="_static/llvm.css" type="text/css">

  <title>LLVM 3.1 Release Notes</title>

</head>

<body>
@@ -96,6 +96,7 @@ Release Notes</a>.</h1> 


<p>In the LLVM 3.1 time-frame, the Clang team has made many improvements:</p>

<ul>

  <li>C++11 support is greatly expanded including lambdas, initializer lists, constexpr, user-defined literals, and atomics.</li>

  <li>...</li>

</ul>
@@ -119,17 +120,30 @@ Release Notes</a>.</h1> 
<div>

<p><a href="http://dragonegg.llvm.org/">DragonEgg</a> is a

   <a href="http://gcc.gnu.org/wiki/plugins">gcc plugin</a> that replaces GCC's

   optimizers and code generators with LLVM's. It works with gcc-4.5 or gcc-4.6,

   targets the x86-32 and x86-64 processor families, and has been successfully

   used on the Darwin, FreeBSD, KFreeBSD, Linux and OpenBSD platforms.  It fully

   supports Ada, C, C++ and Fortran.  It has partial support for Go, Java, Obj-C

   and Obj-C++.</p>

   optimizers and code generators with LLVM's. It works with gcc-4.5 and gcc-4.6

   (and partially with gcc-4.7), can target the x86-32/x86-64 and ARM processor

   families, and has been successfully used on the Darwin, FreeBSD, KFreeBSD,

   Linux and OpenBSD platforms.  It fully supports Ada, C, C++ and Fortran.  It

   has partial support for Go, Java, Obj-C and Obj-C++.</p>



<p>The 3.1 release has the following notable changes:</p>



  <ul>



  <li>...</li>

  <li>Partial support for gcc-4.7. Ada support is poor, but other languages work

      fairly well.</li>



  <li>Support for ARM processors. Some essential gcc headers that are needed to

      build DragonEgg for ARM are not installed by gcc. To work around this,

      copy the missing headers from the gcc source tree.</li>



  <li>Better optimization for Fortran by exploiting the fact that Fortran scalar

      arguments have 'restrict' semantics.</li>



  <li>Better optimization for all languages by passing information about type

      aliasing and type ranges to the LLVM optimizers.</li>



  <li>A regression test-suite was added.</li>



</ul>
@@ -250,7 +264,21 @@ Release Notes</a>.</h1> 
   a lot of other language and tools projects.  This section lists some of the

   projects that have already been updated to work with LLVM 3.1.</p>



  ... to be filled in right before the release ...

<h3>Pure</h3>



<p>Pure (http://pure-lang.googlecode.com/) is an algebraic/functional

programming language based on term rewriting. Programs are collections of

equations which are used to evaluate expressions in a symbolic fashion. The

interpreter uses LLVM as a backend to JIT-compile Pure programs to fast native

code. Pure offers dynamic typing, eager and lazy evaluation, lexical closures, a

hygienic macro system (also based on term rewriting), built-in list and matrix

support (including list and matrix comprehensions) and an easy-to-use interface

to C and other programming languages (including the ability to load LLVM bitcode

modules, and inline C, C++, Fortran and Faust code in Pure programs if the

corresponding LLVM-enabled compilers are installed).</p>



<p>Pure version 0.54 has been tested and is known to work with LLVM 3.1 (and

continues to work with older LLVM releases >= 2.5).</p>



</div>
@@ -536,6 +564,9 @@ syntax, there are still significant gaps in that support.</p> 
  <li>The <tt>unwind</tt> instruction is now gone. With the introduction of the

      new exception handling system in LLVM 3.0, the <tt>unwind</tt> instruction

      became obsolete.</li>

  <li>LLVM 3.0 and earlier automatically added the returns_twice fo functions

      like setjmp based on the name. This functionality was removed in 3.1.

      This affects Clang users, if -ffreestanding is used.</li>

  <li>....</li>

</ul>
@@ -604,6 +635,7 @@ syntax, there are still significant gaps in that support.</p> 
<ul>

  <li>llvm-stress is a command line tool for generating random .ll files to fuzz

      different LLVM components. </li>

  <li>llvm-ld has been removed.  Use llvm-link or Clang instead.</li>

  <li>....</li>

</ul>