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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57416 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner 2008-10-12 18:30:33 +00:00
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@ -88,8 +88,12 @@ It includes a large number of features and refinements from LLVM 2.3.</p>
<li>... Attributes changes ... </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>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>
</ul>
</div>
@ -174,13 +178,19 @@ this section.
<ul>
<li>
<p>MRVs got generalized to FCAs.</p>
<p>MRVs got generalized to FCAs. getresult is gone, ret with multiple values
is gone.</p>
</li>
<li><p>fast isel, -O0 compile times</p></li>
<li><p>Attrs changes?</p></li>
<li><p>Initial PIC16 port</p></li>
<li><p> builtin sync_compare_and_swap builtins + intrinsics</p></li>
<li><p>...</p></li>
</ul>
@ -217,6 +227,10 @@ for the C, C++, Objective-C, Ada, and Fortran front-ends.</p>
</p>
<ul>
<li>use diet patch landed: saved 15% IR memory footprint</li>
<li>LLVM IR now directly represents "common" linkage, instead of
representing it as a form of weak linkage.</li>
<li>...</li>
</ul>
@ -234,8 +248,16 @@ LLVM 2.4 optimizers support a few major enhancements:</p>
<ul>
<li>.</li>
<li>Old-ADCE used control dependence and deleted output-free infinite loops.
Added a new Loop deletion pass (for deleting output free provably-finite loops)
and rewrote ADCE to be simpler faster, and not need control dependence.</li>
<li>SparsePropagation framework for lattice-based dataflow solvers.</li>
<li>LoadVN and GCSE finally bit the dust?</li>
<li>Tail duplication was is removed from the standard optimizer sequence.</li>
</ul>
</div>