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Expand the part about CFI a bit.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145324 91177308-0d34-0410-b5e6-96231b3b80d8
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Rafael Espindola 2011-11-28 23:55:49 +00:00
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@ -942,8 +942,11 @@ be used to verify some algorithms.
<li>LLVM generates substantially better code for indirect gotos due to a new
tail duplication pass, which can be a substantial performance win for
interpreter loops that use them.</li>
<li>Exception handling and debug information is now emitted with CFI directives,
yielding <a href="http://blog.mozilla.com/respindola/2011/05/12/cfi-directives/">much smaller executables</a> for some C++ applications.
<li>Exception handling and debug frame information is now emitted with CFI
directives. This lets the assembler produce more compact info as it knows
the final offsets, yielding <a href="http://blog.mozilla.com/respindola/2011/05/12/cfi-directives/">much smaller executables</a> for some C++ applications.
If the system assembler doesn't support it, MC exands the directives when
the integrated assembler is not used.
</li>
<li>The code generator now supports vector "select" operations on vector