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Clarify documentation and remove guarantees that are not fulfilled.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132344 91177308-0d34-0410-b5e6-96231b3b80d8
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Devang Patel 2011-05-31 17:45:27 +00:00
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docs/SourceLevelDebugging.html
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@ -174,22 +174,15 @@ height="369">
as setting program variables, or calling functions that have been
deleted.</li>
<li>LLVM optimizations gracefully interact with debugging information. If
they are not aware of debug information, they are automatically disabled
as necessary in the cases that would invalidate the debug info. This
retains the LLVM features, making it easy to write new
transformations.</li>
<li>As desired, LLVM optimizations can be upgraded to be aware of the LLVM
debugging information, allowing them to update the debugging information
as they perform aggressive optimizations. This means that, with effort,
the LLVM optimizers could optimize debug code just as well as non-debug
code.</li>
<li>LLVM debug information does not prevent many important optimizations from
<li>LLVM debug information does not prevent optimizations from
happening (for example inlining, basic block reordering/merging/cleanup,
tail duplication, etc), further reducing the amount of the compiler that
eventually is "aware" of debugging information.</li>
tail duplication, etc).<li>
<li>LLVM debug information is automatically optimized along with the rest of
the program, using existing facilities. For example, duplicate