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Add a note about GCC 3.3.2 optimization bug that causes llc to spin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14250 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -651,7 +651,13 @@ href="http://gcc.gnu.org/gcc-3.4/changes.html">GCC 3.4 release notes</a>.</li>
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<div class="doc_text">
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<ul>
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<li>None so far.
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<li>Optimized (Release) versions of LLVM built with GCC 3.3.2 or 3.3.3 will
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produce an llc tool that always enters an infinite loop due to what
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appears to be an optimization bug (-O2 and -O3) in those versions of GCC.
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This problem does not happen in GCC 3.3.1 nor GCC 3.4.0 nor does it happen if
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you build a Debug version of LLVM. You are cautioned not to use GCC 3.3.2 or
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GCC 3.3.3 to build Optimized versions of LLVM. It is unclear whether this problem
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affects other backends but it is unlikely.</li>
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</ul>
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</div>
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