[llvm-commits] [llvm] r57470 - /llvm/trunk/docs/ReleaseNotes.html

[Chris Lattner]

Author: lattner
Date: Mon Oct 13 17:06:31 2008
New Revision: 57470

URL: http://llvm.org/viewvc/llvm-project?rev=57470&view=rev
Log:
more changes.


Modified:
    llvm/trunk/docs/ReleaseNotes.html

Modified: llvm/trunk/docs/ReleaseNotes.html
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/ReleaseNotes.html?rev=57470&r1=57469&r2=57470&view=diff

==============================================================================
--- llvm/trunk/docs/ReleaseNotes.html (original)
+++ llvm/trunk/docs/ReleaseNotes.html Mon Oct 13 17:06:31 2008
@@ -368,7 +368,7 @@
 
 <!--=========================================================================-->
 <div class="doc_subsection">
-<a name="x86specific">X86/X86-64 Specific Improvements</a>
+<a name="targetspecific">Target Specific Improvements</a>
 </div>
 
 <div class="doc_text">
@@ -378,25 +378,8 @@
 <ul>
 <li>Exception handling is supported by default on Linux/x86-64.</li>
 <li>Position Independent Code (PIC) is now supported on Linux/x86-64.</li>
-<li>...</li>
-
-</ul>
-
-</div>
-
-<!--=========================================================================-->
-<div class="doc_subsection">
-<a name="targetspecific">Other Target Specific Improvements</a>
-</div>
-
-<div class="doc_text">
-<p>New target-specific features include:
-</p>
-
-<ul>
-<li>MIPS floating point support?</li>
-<li>PowerPC now supports trampolines.</li>
-<li>....</li>
+<li>MIPS floating point support? [BRUNO]</li>
+<li>The PowerPC backend now supports trampolines.</li>
 </ul>
 
 </div>
@@ -413,11 +396,17 @@
 
 <ul>
 <li><tt>llvmc2</tt> (the generic compiler driver) gained plugin
-  support. It is now easier to experiment with <tt>llvmc2</tt> and
-  build your own tools based on it. </li>
-<li>raw_ostream + formatting</li>
-<li>Recycler + pool allocation stuff?</li>
-<li>...</li>
+    support. It is now easier to experiment with <tt>llvmc2</tt> and
+    build your own tools based on it.</li>
+
+<li>LLVM 2.4 includes a number of new generic algorithms and data structures,
+    include a scoped hash table, 'immutable' data structures, and a 
+    <tt>raw_ostream</tt> class.  The <tt>raw_ostream</tt> class and
+    <tt>format</tt> allow for efficient file output, and various pieces of LLVM
+    have switched over to use it.   The eventual goal is to eliminate
+    std::ostream in favor of it.</li>
+
+<li>Recycler + pool allocation stuff? [DAN]</li>
 </ul>
 
 </div>
@@ -429,27 +418,40 @@
 
 <div class="doc_text">
 
-<p>If you're already an LLVM user, this section lists some "gotchas" that you
-may run into upgrading from the previous release.</p>
+<p>If you're already an LLVM user or developer with out-of-tree changes based
+on LLVM 2.3, this section lists some "gotchas" that you may run into upgrading
+from the previous release.</p>
 
-<p>The LLVM IR generated by llvm-gcc no longer names all instructions.
-   Use the instnamer pass if you want everything named.</p>
+<ul>
 
-<li>The LoadVN and GCSE passes have been removed.</li>
+<li>The LLVM IR generated by llvm-gcc no longer names all instructions.  This
+    makes it run faster, but may be more confusing to some people.  If you
+    prefer to have names, the '<tt>opt -instnamer</tt>' pass will add names to
+    all instructions.</li>
 
+<li>The LoadVN and GCSE passes have been removed from the tree.  They are
+    obsolete and have been replaced with the GVN and MemoryDependence passes.
+    </li>
+</ul>
 
-<p>LLVM API Changes:</p>
+
+<p>In addition, many APIs have changed in this release.  Some of the major LLVM
+API changes are:</p>
 
 <ul>
 
-<li>... Attributes changes ... </li>
+<li>Attributes changes [DEVANG] </li>
 
 <li>The <tt>DbgStopPointInst</tt> methods <tt>getDirectory</tt> and
 <tt>getFileName</tt> now return <tt>Value*</tt> instead of strings. These can be
 converted to strings using <tt>llvm::GetConstantStringInfo</tt> defined via
 "llvm/Analysis/ValueTracking.h".</li>
 
-<li>API change: BinaryOperator::create -> Create (CmpInst, CastInst too)</li>
+<li>The APIs to create various instructions have changed from lower case
+   "create" methods to upper case "Create" methods (e.g. 
+   <tt>BinaryOperator::create</tt>).  LLVM 2.4 includes both cases, but the
+   lower case ones are removed in mainline, please migrate.</li>
+
 <li>Various header files like "llvm/ADT/iterator" were given a .h suffix.
     Change your code to #include "llvm/ADT/iterator.h" instead.</li>