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minor corrections, improved formatting
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57486 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -272,7 +272,7 @@ for any of these IR features though.</li>
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<li>A new <tt>DebugInfoBuilder</tt> class is available, which makes it much
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easier for front-ends to create debug info descriptors, similar to the way that
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IRBuilder makes it easier to create LLVM IR.</li>
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<tt>IRBuilder</tt> makes it easier to create LLVM IR.</li>
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<li>The <tt>IRBuilder</tt> class is now parametrized by a class responsible
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for constant folding. The default <tt>ConstantFolder</tt> class does target independent
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@ -312,11 +312,11 @@ where doing so won't grow code size.</li>
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<li>LLVM 2.4 includes a new loop deletion pass (which removes output-free
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provably-finite loops) and a rewritten Aggressive Dead Code Elimination (ADCE)
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pass that no longer uses control dependence information. These changes speed up
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the optimizer and also prevents it from deleting output-free infinite
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the optimizer and also prevent it from deleting output-free infinite
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loops.</li>
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<li>The new AddReadAttrs pass works out which functions are read-only or
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read-none (these correspond to 'pure' and 'const' in C) and marks them
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read-none (these correspond to 'pure' and 'const' in GCC) and marks them
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with the appropriate attribute.</li>
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<li>LLVM 2.4 now includes a new SparsePropagation framework, which makes it
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@ -350,7 +350,7 @@ provided are now achieved by other passes.</li>
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<div class="doc_text">
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<p>We put a significant amount of work into the code generator infrastructure,
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<p>We have put a significant amount of work into the code generator infrastructure,
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which allows us to implement more aggressive algorithms and make it run
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faster:</p>
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@ -365,14 +365,14 @@ faster:</p>
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<li>In addition to the new 'fast' instruction selection path, many existing
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pieces of the code generator have been optimized in significant ways.
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SelectionDAG's are now pool allocated and use better algorithms in many
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places, the ".s" file printers now use raw_ostream to emit text much faster,
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places, the ".s" file printers now use <tt>raw_ostream</tt> to emit text much faster,
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etc. The end result of these improvements is that the compiler also takes
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substantially less time to generate code that is just as good (and often
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better) than before.</li>
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<li>Each target has been split to separate the .s file printing logic from the
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<li>Each target has been split to separate the ".s" file printing logic from the
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rest of the target. This enables JIT compilers that don't link in the
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(somewhat large) code and data tables used for printing a .s file.</li>
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(somewhat large) code and data tables used for printing a ".s" file.</li>
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<li>The code generator now includes a "stack slot coloring" pass, which packs
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together individual spilled values into common stack slots. This reduces
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@ -477,17 +477,17 @@ API changes are:</p>
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<li>The <tt>DbgStopPointInst</tt> methods <tt>getDirectory</tt> and
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<tt>getFileName</tt> now return <tt>Value*</tt> instead of strings. These can be
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converted to strings using <tt>llvm::GetConstantStringInfo</tt> defined via
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"llvm/Analysis/ValueTracking.h".</li>
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"<tt>llvm/Analysis/ValueTracking.h</tt>".</li>
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<li>The APIs to create various instructions have changed from lower case
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"create" methods to upper case "Create" methods (e.g.
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<tt>BinaryOperator::create</tt>). LLVM 2.4 includes both cases, but the
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lower case ones are removed in mainline, please migrate.</li>
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<li>Various header files like "llvm/ADT/iterator" were given a .h suffix.
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Change your code to #include "llvm/ADT/iterator.h" instead.</li>
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<li>Various header files like "<tt>llvm/ADT/iterator</tt>" were given a ".h" suffix.
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Change your code to #include "<tt>llvm/ADT/iterator.h</tt>" instead.</li>
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<li>In the code generator, many MachineOperand predicates were renamed to be
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<li>In the code generator, many <tt>MachineOperand</tt> predicates were renamed to be
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shorter (e.g. <tt>isFrameIndex()</tt> -> <tt>isFI()</tt>),
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<tt>SDOperand</tt> was renamed to <tt>SDValue</tt> (and the "<tt>Val</tt>"
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member was changed to be the <tt>getNode()</tt> accessor), and the
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@ -560,7 +560,7 @@ components, please contact us on the <a
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href="http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev">LLVMdev list</a>.</p>
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<ul>
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<li>The MSIL, IA64, Alpha, SPU, and MIPS backends are experimental.</li>
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<li>The MSIL, IA64, Alpha, SPU, MIPS, and PIC16 backends are experimental.</li>
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<li>The llc "<tt>-filetype=asm</tt>" (the default) is the only supported
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value for this option.</li>
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</ul>
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