[Google] X86_TUNE_USE_VECTOR_CONVERTS adjustment

Turning off X86_TUNE_USE_VECTOR_CONVERTS uses cvtss2sd instead of unpcklps+cvtps2pd, which is better for some recent intel micro arch such as westmere and sandybridge. So turn it off for m_GENERIC and m_CORE_ALL. regression and bootstrap ok. ok for 4.8 branch? Index: config/i386/i386.c

Re: [Google] X86_TUNE_USE_VECTOR_CONVERTS adjustment

yes. thanks, David On Thu, Aug 15, 2013 at 9:50 AM, Wei Mi w...@google.com wrote: Turning off X86_TUNE_USE_VECTOR_CONVERTS uses cvtss2sd instead of unpcklps+cvtps2pd, which is better for some recent intel micro arch such as westmere and sandybridge. So turn it off for m_GENERIC and