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- <title>LLVM 2.7 Release Notes</title>
+ <title>LLVM 2.8 Release Notes</title>
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<body>
-<div class="doc_title">LLVM 2.7 Release Notes</div>
+<div class="doc_title">LLVM 2.8 Release Notes</div>
<img align=right src="http://llvm.org/img/DragonSmall.png"
width="136" height="136" alt="LLVM Dragon Logo">
<ol>
<li><a href="#intro">Introduction</a></li>
<li><a href="#subproj">Sub-project Status Update</a></li>
- <li><a href="#externalproj">External Projects Using LLVM 2.7</a></li>
- <li><a href="#whatsnew">What's New in LLVM 2.7?</a></li>
+ <li><a href="#externalproj">External Projects Using LLVM 2.8</a></li>
+ <li><a href="#whatsnew">What's New in LLVM 2.8?</a></li>
<li><a href="GettingStarted.html">Installation Instructions</a></li>
<li><a href="#portability">Portability and Supported Platforms</a></li>
<li><a href="#knownproblems">Known Problems</a></li>
<p>Written by the <a href="http://llvm.org">LLVM Team</a></p>
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-<!--
<h1 style="color:red">These are in-progress notes for the upcoming LLVM 2.8
release.<br>
You may prefer the
-<a href="http://llvm.org/releases/2.6/docs/ReleaseNotes.html">LLVM 2.7
-Release Notes</a>.</h1>-->
+<a href="http://llvm.org/releases/2.7/docs/ReleaseNotes.html">LLVM 2.7
+Release Notes</a>.</h1>
<!-- *********************************************************************** -->
<div class="doc_section">
<div class="doc_text">
<p>This document contains the release notes for the LLVM Compiler
-Infrastructure, release 2.7. Here we describe the status of LLVM, including
+Infrastructure, release 2.8. Here we describe the status of LLVM, including
major improvements from the previous release and significant known problems.
All LLVM releases may be downloaded from the <a
href="http://llvm.org/releases/">LLVM releases web site</a>.</p>
-->
-<!-- Features that need text if they're finished for 2.7:
+<!-- Features that need text if they're finished for 2.8:
combiner-aa?
strong phi elim
llvm.dbg.value: variable debug info for optimized code
<div class="doc_text">
<p>
-The LLVM 2.7 distribution currently consists of code from the core LLVM
+The LLVM 2.8 distribution currently consists of code from the core LLVM
repository (which roughly includes the LLVM optimizers, code generators
and supporting tools), the Clang repository and the llvm-gcc repository. In
addition to this code, the LLVM Project includes other sub-projects that are in
Unfortunately, this support is not really usable in 2.7, so if you're
interested in pushing it forward, please help contribute to LLVM mainline.</li>
+<!-- BELOW COME ACTUAL 2.8 CHANGES -->
+
+<li>LLVM 2.8 changes the internal order of operands in <a
+ href="http://llvm.org/doxygen/classllvm_1_1InvokeInst.html"><tt>InvokeInst</tt></a>
+ and <a href="http://llvm.org/doxygen/classllvm_1_1CallInst.html"><tt>CallInst</tt></a>.
+ To be portable across releases, resort to <tt>CallSite</tt> and the
+ high-level accessors, such as <tt>getCalledValue</tt> and <tt>setUnwindDest</tt>.</li>
+</li>
+
</ul>
</div>
<ul>
-<li>The inliner reuses now merges arrays stack objects in different callees when
+<li>The inliner now merges arrays stack objects in different callees when
inlining multiple call sites into one function. This reduces the stack size
of the resultant function.</li>
<li>The -basicaa alias analysis pass (which is the default) has been improved to
API changes are:</p>
<ul>
-<li>Just about everything has been converted to use <tt>raw_ostream</tt> instead of
- <tt>std::ostream</tt>.</li>
-<li><tt>llvm/ADT/iterator.h</tt> has been removed, just use <tt><iterator></tt>
- instead.</li>
-<li>The <tt>Streams.h</tt> file and <tt>DOUT</tt> got removed, use <tt>DEBUG(errs() << ...);</tt>
- instead.</li>
-<li>The <tt>TargetAsmInfo</tt> interface was renamed to <tt>MCAsmInfo</tt>.</li>
-<li><tt>ModuleProvider</tt> has been <a
-href="http://llvm.org/viewvc/llvm-project?view=rev&revision=94686">removed</a>
-and its methods moved to <tt>Module</tt> and <tt>GlobalValue</tt>.
-Most clients can remove uses of <tt>ExistingModuleProvider</tt>,
-replace <tt>getBitcodeModuleProvider</tt> with
-<tt>getLazyBitcodeModule</tt>, and pass their <tt>Module</tt> to
-functions that used to accept <tt>ModuleProvider</tt>. Clients who
-wrote their own <tt>ModuleProvider</tt>s will need to derive from
-<tt>GVMaterializer</tt> instead and use
-<tt>Module::setMaterializer</tt> to attach it to a
-<tt>Module</tt>.</li>
-
-<li><tt>GhostLinkage</tt> has given up the ghost.
-<tt>GlobalValue</tt>s that have not yet been read from their backing
-storage have the same linkage they will have after being read in.
-Clients must replace calls to
-<tt>GlobalValue::hasNotBeenReadFromBitcode</tt> with
-<tt>GlobalValue::isMaterializable</tt>.</li>
-
-<li>The <tt>isInteger</tt>, <tt>isIntOrIntVector</tt>, <tt>isFloatingPoint</tt>,
-<tt>isFPOrFPVector</tt> and <tt>isFPOrFPVector</tt> methods have been renamed
-<tt>isIntegerTy</tt>, <tt>isIntOrIntVectorTy</tt>, <tt>isFloatingPointTy</tt>,
-<tt>isFPOrFPVectorTy</tt> and <tt>isFPOrFPVectorTy</tt> respectively.</li>
-
-<li><tt>llvm::Instruction::clone()</tt> no longer takes argument.</li>
-<li><tt>raw_fd_ostream</tt>'s constructor now takes a flag argument, not individual
- booleans (see <tt>include/llvm/Support/raw_ostream.h</tt> for details).</li>
-<li>Some header files have been renamed:
-<ul>
- <li><tt>llvm/Support/AIXDataTypesFix.h</tt> to
- <tt>llvm/System/AIXDataTypesFix.h</tt></li>
- <li><tt>llvm/Support/DataTypes.h</tt> to <tt>llvm/System/DataTypes.h</tt></li>
- <li><tt>llvm/Transforms/Utils/InlineCost.h</tt> to
- <tt>llvm/Analysis/InlineCost.h</tt></li>
- <li><tt>llvm/Support/Mangler.h</tt> to <tt>llvm/Target/Mangler.h</tt></li>
- <li><tt>llvm/Analysis/Passes.h</tt> to <tt>llvm/CodeGen/Passes.h</tt></li>
-</ul></li>
+
+<li>The <tt>add</tt>, <tt>sub</tt>, and <tt>mul</tt> instructions no longer
+support floating-point operands. The <tt>fadd</tt>, <tt>fsub</tt>, and
+<tt>fmul</tt> instructions should be used for this purpose instead.</li>
+
</ul>
</div>
projects / oota-llvm.git / blobdiff