[cfe-dev] mpfr 3.1.0 vs clang 3.0svn

Eric Christopher echristo at apple.com
Tue Oct 11 16:52:37 PDT 2011

On Oct 11, 2011, at 7:48 AM, Jack Howarth wrote:

>   Another data point on this problem. Using current llvm/dragonegg svn, I can compile libmpfr 3.1.0
> using FSF gcc 4.6.2svn and the dragonegg plugin without any testsuite failures in libmpfr. Thus
> it seems unlikely that the issue is in llvm but rather a problem introduced in clang itself.
>       Jack
> ps Interestingly, I can even compile libmpfr using llvm/dragonegg svn with the flags
> -msse4 -fplugin-arg-dragonegg-enable-gcc-optzns to fully vectorize the code without
> any failures in the libmpfr test suite.

As we discussed it's likely a problem with TLS support in clang. I'm uncertain what the problem is, but I'll see if any of the TLS support tests I've got here have randomly started failing.


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