[llvm-commits] [llvm] r158226 - /llvm/trunk/lib/Transforms/Scalar/Reassociate.cpp

[Charles Davis]

Sorry it took so long for me to get back to you.

On Jun 11, 2012, at 1:12 AM, Duncan Sands wrote:

> Hi Charles,
> 
>> I don't know about you, but I'm still seeing this problem even with this fix (i.e. Clang hangs in Reassociate while compiling ClangAttrEmitter.cpp).
> 
> I guess it's not exactly the same problem then.
> 
>> Do you want me to revert (again) and file a bug?
> 
> Maybe just explain how to reproduce it and I will try to fix it today.
All I did was try to self-host Clang.

Maybe I should give some specifics:

- OS: Mac OS X 10.6.8
- Stage 1 compiler: Clang
- Stage 1 options: --enable-optimized --disable-assertions --enable-libcpp CXXFLAGS='-std=gnu++11'
- Stage 2 compiler: Clang (Stage 1)
- Stage 2 options: --enable-optimized --disable-assertions --enable-libcpp --disable-timestamps CXXFLAGS='-std=gnu++11'

It usually hangs (though not always) when trying to build ClangAttrEmitter.cpp during stage 2. Whenever I profile the hanged Clang process, it's always hung in Reassociate.

Chip