[LLVMdev] LLVM and Spec2006
grosser at fim.uni-passau.de
Tue Jul 20 09:34:51 PDT 2010
On 07/20/10 18:03, Jim Grosbach wrote:
> -O4 does give good additional performance compared to -O3 with llvm. The additional inlining opportunities and such add up quite a bit. The SPEC2006 runs I've done have all been within the framework of the llvm test suite, the LTO is run directly, rather than via an explicit -O4 option. The test-suite Makefiles themselves are probably the best place to look for the details of how that works if you're interested. SPEC2006 is hooked in via the Externals tests.
did you do any testing of the fortran test cases? If you did, did you
manage to use llvm-gfortran or did you use any of the fortran converters?
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