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Warn about broken GCCs on ARM due to the problem fixed:

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http://gcc.gnu.org/ml/gcc-patches/2010-09/msg01070.html


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115998 91177308-0d34-0410-b5e6-96231b3b80d8
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Nick Lewycky 2010-10-07 22:30:47 +00:00
parent afcd543a55
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@ -566,6 +566,9 @@ as the previous one. It appears to work with ENABLE_OPTIMIZED=0 (the default).</
<p><b>GCC 4.3.3 (Debian 4.3.3-10) on ARM</b>: Miscompiles parts of LLVM 2.6 <p><b>GCC 4.3.3 (Debian 4.3.3-10) on ARM</b>: Miscompiles parts of LLVM 2.6
when optimizations are turned on. The symptom is an infinite loop in when optimizations are turned on. The symptom is an infinite loop in
FoldingSetImpl::RemoveNode while running the code generator.</p> FoldingSetImpl::RemoveNode while running the code generator.</p>
<p><b>GCC 4.3.5 and GCC 4.4.5 on ARM</b>: These can miscompile <tt>value >>
1</tt> even at -O0. A test failure in <tt>test/Assembler/alignstack.ll</tt> is
one symptom of the problem.
<p><b>GNU ld 2.16.X</b>. Some 2.16.X versions of the ld linker will produce very <p><b>GNU ld 2.16.X</b>. Some 2.16.X versions of the ld linker will produce very
long warning messages complaining that some ".gnu.linkonce.t.*" symbol was long warning messages complaining that some ".gnu.linkonce.t.*" symbol was
defined in a discarded section. You can safely ignore these messages as they are defined in a discarded section. You can safely ignore these messages as they are