[LLVMbugs] [Bug 15247] [BBVectorizer] Possible regression of vectorization of Linpack on ARM

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=15247

Renato Golin <renato.golin at linaro.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|---                         |INVALID

--- Comment #7 from Renato Golin <renato.golin at linaro.org> ---
The difference in performance between GCC and Clang is that Clang defaults to
Cortex-A8 and doesn't do all the optimizations that A9 allows. If I specify
-mcpu=cortex-a9 on the command line, the performances are statistically
identical.

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