Enable FEATURE_SIMD and FEATURE_AVX_SUPPORT in the JIT
Enable FEATURE_SIMD and FEATURE_AVX_SUPPORT in the JIT

For amd64 processors, the JIT supports SIMD intrinsics and supports generating AVX instructions when the processor support is available.

Fix # 977

dasMulli/coreclr,jhendrixMSFT/coreclr,dasMulli/coreclr,mocsy/coreclr,taylorjonl/coreclr,jhendrixMSFT/coreclr,mocsy/coreclr,xoofx/coreclr,SlavaRa/coreclr,jamesqo/coreclr,Lucrecious/coreclr,richardlford/coreclr,josteink/coreclr,parjong/coreclr,richardlford/coreclr,dpodder/coreclr,geertdoornbos/coreclr,jhendrixMSFT/coreclr,ragmani/coreclr,gitchomik/coreclr,chenxizhang/coreclr,bartonjs/coreclr,stormleoxia/coreclr,mskvortsov/coreclr,hanu412/coreclr,rartemev/coreclr,josteink/coreclr,wateret/coreclr,josteink/coreclr,ZhichengZhu/coreclr,schellap/coreclr,wkchoy74/coreclr,neurospeech/coreclr,cmckinsey/coreclr,shana/coreclr,yeaicc/coreclr,DasAllFolks/coreclr,sperling/coreclr,shana/coreclr,James-Ko/coreclr,bjjones/coreclr,lzcj4/coreclr,taylorjonl/coreclr,qiudesong/coreclr,YongseopKim/coreclr,Lucrecious/coreclr,Dmitry-Me/coreclr,taylorjonl/coreclr,gitchomik/coreclr,DasAllFolks/coreclr,LLITCHEV/coreclr,sagood/coreclr,mmitche/coreclr,SlavaRa/coreclr,perfectphase/coreclr,sergey-raevskiy/coreclr,Dmitry-Me/coreclr,neurospeech/coreclr,DasAllFolks/coreclr,manu-silicon/coreclr,mocsy/coreclr,xtypebee/coreclr,vinnyrom/coreclr,mokchhya/coreclr,poizan42/coreclr,mokchhya/coreclr,xtypebee/coreclr,roncain/coreclr,fernando-rodriguez/coreclr,cmckinsey/coreclr,sjsinju/coreclr,KrzysztofCwalina/coreclr,ramarag/coreclr,jhendrixMSFT/coreclr,OryJuVog/coreclr,gkhanna79/coreclr,DickvdBrink/coreclr,rartemev/coreclr,bartdesmet/coreclr,hanu412/coreclr,JosephTremoulet/coreclr,gkhanna79/coreclr,sperling/coreclr,pgavlin/coreclr,MCGPPeters/coreclr,sergey-raevskiy/coreclr,Alcaro/coreclr,GuilhermeSa/coreclr,blackdwarf/coreclr,spoiledsport/coreclr,AlexGhiondea/coreclr,alexperovich/coreclr,yizhang82/coreclr,bjjones/coreclr,AlfredoMS/coreclr,ganeshran/coreclr,swgillespie/coreclr,neurospeech/coreclr,ruben-ayrapetyan/coreclr,wkchoy74/coreclr,wtgodbe/coreclr,spoiledsport/coreclr,richardlford/coreclr,benpye/coreclr,JosephTremoulet/coreclr,orthoxerox/coreclr,andschwa/coreclr,alexperovich/coreclr,ganeshran/coreclr,andschwa/coreclr,Djuffin/coreclr,James-Ko/coreclr,manu-silicon/coreclr,bartonjs/coreclr,hseok-oh/coreclr,roncain/coreclr,taylorjonl/coreclr,sejongoh/coreclr,roncain/coreclr,ruben-ayrapetyan/coreclr,bjjones/coreclr,apanda/coreclr,dasMulli/coreclr,martinwoodward/coreclr,krixalis/coreclr,roncain/coreclr,josteink/coreclr,iamjasonp/coreclr,benpye/coreclr,wateret/coreclr,ramarag/coreclr,Dmitry-Me/coreclr,fffej/coreclr,dkorolev/coreclr,dasMulli/coreclr,sejongoh/coreclr,cshung/coreclr,krytarowski/coreclr,geertdoornbos/coreclr,mocsy/coreclr,yeaicc/coreclr,chrishaly/coreclr,parjong/coreclr,Samana/coreclr,bartdesmet/coreclr,ramarag/coreclr,YongseopKim/coreclr,Lucrecious/coreclr,jhendrixMSFT/coreclr,schellap/coreclr,sejongoh/coreclr,ktos/coreclr,bartdesmet/coreclr,SlavaRa/coreclr,rartemev/coreclr,pgavlin/coreclr,iamjasonp/coreclr,SpotLabsNET/coreclr,JonHanna/coreclr,ZhichengZhu/coreclr,xoofx/coreclr,ZhichengZhu/coreclr,naamunds/coreclr,yeaicc/coreclr,krk/coreclr,cmckinsey/coreclr,KrzysztofCwalina/coreclr,cmckinsey/coreclr,david-mitchell/coreclr,DickvdBrink/coreclr,AlfredoMS/coreclr,swgillespie/coreclr,dkorolev/coreclr,Dmitry-Me/coreclr,LLITCHEV/coreclr,lzcj4/coreclr,josteink/coreclr,Djuffin/coreclr,ytechie/coreclr,jhendrixMSFT/coreclr,SlavaRa/coreclr,botaberg/coreclr,krixalis/coreclr,krixalis/coreclr,chaos7theory/coreclr,bitcrazed/coreclr,bartonjs/coreclr,spoiledsport/coreclr,bartdesmet/coreclr,martinwoodward/coreclr,Godin/coreclr,dkorolev/coreclr,sejongoh/coreclr,rartemev/coreclr,AlfredoMS/coreclr,mocsy/coreclr,sejongoh/coreclr,OryJuVog/coreclr,Alcaro/coreclr,DasAllFolks/coreclr,sperling/coreclr,Djuffin/coreclr,mokchhya/coreclr,krytarowski/coreclr,jamesqo/coreclr,bjjones/coreclr,ruben-ayrapetyan/coreclr,sejongoh/coreclr,naamunds/coreclr,andschwa/coreclr,shahid-pk/coreclr,JonHanna/coreclr,russellhadley/coreclr,yizhang82/coreclr,iamjasonp/coreclr,bartonjs/coreclr,grokys/coreclr,ragmani/coreclr,dasMulli/coreclr,jhendrixMSFT/coreclr,ragmani/coreclr,JosephTremoulet/coreclr,James-Ko/coreclr,YongseopKim/coreclr,shahid-pk/coreclr,sjsinju/coreclr,kyulee1/coreclr,OryJuVog/coreclr,vinnyrom/coreclr,shahid-pk/coreclr,martinwoodward/coreclr,KrzysztofCwalina/coreclr,James-Ko/coreclr,chrishaly/coreclr,wkchoy74/coreclr,alexperovich/coreclr,misterzik/coreclr,ruben-ayrapetyan/coreclr,spoiledsport/coreclr,Lucrecious/coreclr,cshung/coreclr,schellap/coreclr,cshung/coreclr,SpotLabsNET/coreclr,mokchhya/coreclr,fffej/coreclr,Samana/coreclr,perfectphase/coreclr,botaberg/coreclr,russellhadley/coreclr,LLITCHEV/coreclr,Alcaro/coreclr,lzcj4/coreclr,misterzik/coreclr,perfectphase/coreclr,hanu412/coreclr,shahid-pk/coreclr,jamesqo/coreclr,fffej/coreclr,yizhang82/coreclr,orthoxerox/coreclr,chuck-mitchell/coreclr,misterzik/coreclr,shana/coreclr,ytechie/coreclr,manu-silicon/coreclr,LLITCHEV/coreclr,Lucrecious/coreclr,ktos/coreclr,sperling/coreclr,xoofx/coreclr,hanu412/coreclr,roncain/coreclr,serenabenny/coreclr,taylorjonl/coreclr,AlexGhiondea/coreclr,wateret/coreclr,hanu412/coreclr,SlavaRa/coreclr,zmaruo/coreclr,gitchomik/coreclr,roncain/coreclr,iamjasonp/coreclr,KrzysztofCwalina/coreclr,xtypebee/coreclr,gitchomik/coreclr,benpye/coreclr,parjong/coreclr,krytarowski/coreclr,poizan42/coreclr,perfectphase/coreclr,tijoytom/coreclr,benpye/coreclr,Djuffin/coreclr,ZhichengZhu/coreclr,david-mitchell/coreclr,botaberg/coreclr,russellhadley/coreclr,ganeshran/coreclr,misterzik/coreclr,hseok-oh/coreclr,ytechie/coreclr,orthoxerox/coreclr,apanda/coreclr,ericeil/coreclr,ZhichengZhu/coreclr,hanu412/coreclr,dasMulli/coreclr,sperling/coreclr,vinnyrom/coreclr,Sridhar-MS/coreclr,krk/coreclr,schellap/coreclr,JonHanna/coreclr,gkhanna79/coreclr,ZhichengZhu/coreclr,Godin/coreclr,GuilhermeSa/coreclr,serenabenny/coreclr,xtypebee/coreclr,shana/coreclr,DickvdBrink/coreclr,yeaicc/coreclr,fernando-rodriguez/coreclr,zmaruo/coreclr,naamunds/coreclr,sagood/coreclr,sjsinju/coreclr,zmaruo/coreclr,cydhaselton/coreclr,geertdoornbos/coreclr,neurospeech/coreclr,kyulee1/coreclr,shahid-pk/coreclr,botaberg/coreclr,Samana/coreclr,ktos/coreclr,wkchoy74/coreclr,andschwa/coreclr,ganeshran/coreclr,JonHanna/coreclr,bartdesmet/coreclr,bitcrazed/coreclr,grokys/coreclr,qiudesong/coreclr,mocsy/coreclr,fernando-rodriguez/coreclr,ramarag/coreclr,pgavlin/coreclr,perfectphase/coreclr,orthoxerox/coreclr,dkorolev/coreclr,chaos7theory/coreclr,gkhanna79/coreclr,david-mitchell/coreclr,JonHanna/coreclr,grokys/coreclr,Godin/coreclr,ragmani/coreclr,SpotLabsNET/coreclr,poizan42/coreclr,stormleoxia/coreclr,chuck-mitchell/coreclr,Godin/coreclr,blackdwarf/coreclr,blackdwarf/coreclr,tijoytom/coreclr,wkchoy74/coreclr,apanda/coreclr,misterzik/coreclr,GuilhermeSa/coreclr,sagood/coreclr,tijoytom/coreclr,chaos7theory/coreclr,cydhaselton/coreclr,geertdoornbos/coreclr,SpotLabsNET/coreclr,DasAllFolks/coreclr,sagood/coreclr,pgavlin/coreclr,cmckinsey/coreclr,josteink/coreclr,ericeil/coreclr,cmckinsey/coreclr,benpye/coreclr,botaberg/coreclr,wkchoy74/coreclr,ganeshran/coreclr,neurospeech/coreclr,AlfredoMS/coreclr,sagood/coreclr,serenabenny/coreclr,matthubin/coreclr,pgavlin/coreclr,chuck-mitchell/coreclr,schellap/coreclr,bitcrazed/coreclr,blackdwarf/coreclr,Djuffin/coreclr,sergey-raevskiy/coreclr,grokys/coreclr,cydhaselton/coreclr,kyulee1/coreclr,mskvortsov/coreclr,lzcj4/coreclr,apanda/coreclr,JosephTremoulet/coreclr,ericeil/coreclr,matthubin/coreclr,mmitche/coreclr,krytarowski/coreclr,poizan42/coreclr,wtgodbe/coreclr,bartdesmet/coreclr,dpodder/coreclr,chenxizhang/coreclr,ericeil/coreclr,dasMulli/coreclr,DasAllFolks/coreclr,krytarowski/coreclr,stormleoxia/coreclr,naamunds/coreclr,krixalis/coreclr,mocsy/coreclr,orthoxerox/coreclr,Alcaro/coreclr,schellap/coreclr,russellhadley/coreclr,andschwa/coreclr,ytechie/coreclr,swgillespie/coreclr,chenxizhang/coreclr,krk/coreclr,vinnyrom/coreclr,MCGPPeters/coreclr,apanda/coreclr,russellhadley/coreclr,wateret/coreclr,ruben-ayrapetyan/coreclr,iamjasonp/coreclr,cshung/coreclr,chenxizhang/coreclr,misterzik/coreclr,andschwa/coreclr,shana/coreclr,YongseopKim/coreclr,DickvdBrink/coreclr,matthubin/coreclr,ktos/coreclr,poizan42/coreclr,dpodder/coreclr,martinwoodward/coreclr,yeaicc/coreclr,qiudesong/coreclr,ruben-ayrapetyan/coreclr,mskvortsov/coreclr,swgillespie/coreclr,mmitche/coreclr,manu-silicon/coreclr,Sridhar-MS/coreclr,yeaicc/coreclr,sjsinju/coreclr,sergey-raevskiy/coreclr,rartemev/coreclr,alexperovich/coreclr,Dmitry-Me/coreclr,JonHanna/coreclr,ramarag/coreclr,Alcaro/coreclr,david-mitchell/coreclr,DickvdBrink/coreclr,Dmitry-Me/coreclr,sjsinju/coreclr,Sridhar-MS/coreclr,kyulee1/coreclr,qiudesong/coreclr,KrzysztofCwalina/coreclr,fernando-rodriguez/coreclr,matthubin/coreclr,richardlford/coreclr,ktos/coreclr,parjong/coreclr,spoiledsport/coreclr,manu-silicon/coreclr,ktos/coreclr,cmckinsey/coreclr,dkorolev/coreclr,blackdwarf/coreclr,tijoytom/coreclr,naamunds/coreclr,naamunds/coreclr,vinnyrom/coreclr,cshung/coreclr,rartemev/coreclr,stormleoxia/coreclr,parjong/coreclr,benpye/coreclr,cshung/coreclr,benpye/coreclr,spoiledsport/coreclr,sperling/coreclr,bjjones/coreclr,kyulee1/coreclr,MCGPPeters/coreclr,shahid-pk/coreclr,mmitche/coreclr,russellhadley/coreclr,chrishaly/coreclr,chaos7theory/coreclr,sjsinju/coreclr,James-Ko/coreclr,krytarowski/coreclr,krixalis/coreclr,MCGPPeters/coreclr,grokys/coreclr,tijoytom/coreclr,hseok-oh/coreclr,blackdwarf/coreclr,mokchhya/coreclr,Sridhar-MS/coreclr,parjong/coreclr,hseok-oh/coreclr,JosephTremoulet/coreclr,fffej/coreclr,fffej/coreclr,grokys/coreclr,poizan42/coreclr,Lucrecious/coreclr,bartdesmet/coreclr,wateret/coreclr,KrzysztofCwalina/coreclr,kyulee1/coreclr,fernando-rodriguez/coreclr,serenabenny/coreclr,zmaruo/coreclr,shana/coreclr,vinnyrom/coreclr,swgillespie/coreclr,wtgodbe/coreclr,krk/coreclr,Godin/coreclr,AlfredoMS/coreclr,fffej/coreclr,chrishaly/coreclr,zmaruo/coreclr,bartonjs/coreclr,shahid-pk/coreclr,geertdoornbos/coreclr,qiudesong/coreclr,Samana/coreclr,SlavaRa/coreclr,AlexGhiondea/coreclr,xtypebee/coreclr,matthubin/coreclr,Samana/coreclr,bitcrazed/coreclr,OryJuVog/coreclr,wtgodbe/coreclr,krixalis/coreclr,chrishaly/coreclr,YongseopKim/coreclr,yeaicc/coreclr,chaos7theory/coreclr,gitchomik/coreclr,chuck-mitchell/coreclr,chuck-mitchell/coreclr,stormleoxia/coreclr,yizhang82/coreclr,xoofx/coreclr,david-mitchell/coreclr,geertdoornbos/coreclr,Djuffin/coreclr,James-Ko/coreclr,chuck-mitchell/coreclr,Godin/coreclr,LLITCHEV/coreclr,jamesqo/coreclr,ktos/coreclr,wtgodbe/coreclr,ZhichengZhu/coreclr,manu-silicon/coreclr,jamesqo/coreclr,swgillespie/coreclr,swgillespie/coreclr,krk/coreclr,xoofx/coreclr,GuilhermeSa/coreclr,AlfredoMS/coreclr,DickvdBrink/coreclr,OryJuVog/coreclr,manu-silicon/coreclr,serenabenny/coreclr,matthubin/coreclr,perfectphase/coreclr,Dmitry-Me/coreclr,MCGPPeters/coreclr,neurospeech/coreclr,bjjones/coreclr,cydhaselton/coreclr,chaos7theory/coreclr,sejongoh/coreclr,cydhaselton/coreclr,mmitche/coreclr,stormleoxia/coreclr,naamunds/coreclr,alexperovich/coreclr,richardlford/coreclr,geertdoornbos/coreclr,SpotLabsNET/coreclr,ganeshran/coreclr,KrzysztofCwalina/coreclr,bitcrazed/coreclr,wateret/coreclr,Godin/coreclr,mskvortsov/coreclr,gkhanna79/coreclr,jamesqo/coreclr,mokchhya/coreclr,wtgodbe/coreclr,ramarag/coreclr,GuilhermeSa/coreclr,vinnyrom/coreclr,gkhanna79/coreclr,MCGPPeters/coreclr,Lucrecious/coreclr,andschwa/coreclr,Sridhar-MS/coreclr,xoofx/coreclr,SpotLabsNET/coreclr,fernando-rodriguez/coreclr,roncain/coreclr,chuck-mitchell/coreclr,david-mitchell/coreclr,chenxizhang/coreclr,ragmani/coreclr,sergey-raevskiy/coreclr,zmaruo/coreclr,blackdwarf/coreclr,sagood/coreclr,mskvortsov/coreclr,mokchhya/coreclr,ericeil/coreclr,serenabenny/coreclr,mmitche/coreclr,cydhaselton/coreclr,hseok-oh/coreclr,LLITCHEV/coreclr,dpodder/coreclr,GuilhermeSa/coreclr,chenxizhang/coreclr,lzcj4/coreclr,bitcrazed/coreclr,gitchomik/coreclr,martinwoodward/coreclr,YongseopKim/coreclr,hseok-oh/coreclr,lzcj4/coreclr,josteink/coreclr,yizhang82/coreclr,ericeil/coreclr,wkchoy74/coreclr,stormleoxia/coreclr,Alcaro/coreclr,dkorolev/coreclr,AlexGhiondea/coreclr,sperling/coreclr,pgavlin/coreclr,apanda/coreclr,ragmani/coreclr,iamjasonp/coreclr,LLITCHEV/coreclr,dpodder/coreclr,krk/coreclr,yizhang82/coreclr,chrishaly/coreclr,AlexGhiondea/coreclr,orthoxerox/coreclr,ytechie/coreclr,martinwoodward/coreclr,ytechie/coreclr,bartonjs/coreclr,sergey-raevskiy/coreclr,alexperovich/coreclr,AlexGhiondea/coreclr,taylorjonl/coreclr,botaberg/coreclr,Sridhar-MS/coreclr,Samana/coreclr,richardlford/coreclr,martinwoodward/coreclr,schellap/coreclr,mskvortsov/coreclr,JosephTremoulet/coreclr,dpodder/coreclr,bitcrazed/coreclr,tijoytom/coreclr,xtypebee/coreclr,taylorjonl/coreclr,ramarag/coreclr,OryJuVog/coreclr,bartonjs/coreclr,qiudesong/coreclr