LLVM: Fix #5131. Add support for missing stg regs
LLVM: Fix #5131. Add support for missing stg regs

fmthoma/ghc,vTurbine/ghc,hferreiro/replay,nathyong/microghc-ghc,siddhanathan/ghc,acowley/ghc,anton-dessiatov/ghc,bitemyapp/ghc,fmthoma/ghc,vikraman/ghc,holzensp/ghc,sgillespie/ghc,olsner/ghc,snoyberg/ghc,mfine/ghc,hferreiro/replay,ryantm/ghc,TomMD/ghc,holzensp/ghc,gcampax/ghc,shlevy/ghc,sdiehl/ghc,mcschroeder/ghc,olsner/ghc,anton-dessiatov/ghc,AlexanderPankiv/ghc,siddhanathan/ghc,vikraman/ghc,nushio3/ghc,gcampax/ghc,AlexanderPankiv/ghc,frantisekfarka/ghc-dsi,da-x/ghc,bitemyapp/ghc,acowley/ghc,spacekitteh/smcghc,ryantm/ghc,christiaanb/ghc,spacekitteh/smcghc,gridaphobe/ghc,ekmett/ghc,green-haskell/ghc,sgillespie/ghc,ghc-android/ghc,fmthoma/ghc,olsner/ghc,ezyang/ghc,elieux/ghc,ekmett/ghc,spacekitteh/smcghc,christiaanb/ghc,urbanslug/ghc,olsner/ghc,anton-dessiatov/ghc,sdiehl/ghc,christiaanb/ghc,jstolarek/ghc,holzensp/ghc,tibbe/ghc,forked-upstream-packages-for-ghcjs/ghc,jstolarek/ghc,forked-upstream-packages-for-ghcjs/ghc,nushio3/ghc,ilyasergey/GHC-XAppFix,ekmett/ghc,elieux/ghc,forked-upstream-packages-for-ghcjs/ghc,bitemyapp/ghc,hferreiro/replay,shlevy/ghc,ml9951/ghc,acowley/ghc,sgillespie/ghc,ghc-android/ghc,gridaphobe/ghc,ml9951/ghc,tibbe/ghc,TomMD/ghc,wxwxwwxxx/ghc,wxwxwwxxx/ghc,vikraman/ghc,christiaanb/ghc,snoyberg/ghc,ml9951/ghc,wxwxwwxxx/ghc,sgillespie/ghc,frantisekfarka/ghc-dsi,GaloisInc/halvm-ghc,oldmanmike/ghc,fmthoma/ghc,nkaretnikov/ghc,spacekitteh/smcghc,ml9951/ghc,snoyberg/ghc,green-haskell/ghc,nathyong/microghc-ghc,lukexi/ghc-7.8-arm64,nathyong/microghc-ghc,acowley/ghc,lukexi/ghc,urbanslug/ghc,mfine/ghc,da-x/ghc,TomMD/ghc,ryantm/ghc,sdiehl/ghc,bitemyapp/ghc,christiaanb/ghc,oldmanmike/ghc,mcschroeder/ghc,nathyong/microghc-ghc,vikraman/ghc,mcschroeder/ghc,fmthoma/ghc,acowley/ghc,nomeata/ghc,forked-upstream-packages-for-ghcjs/ghc,olsner/ghc,ryantm/ghc,da-x/ghc,nomeata/ghc,mcmaniac/ghc,shlevy/ghc,ml9951/ghc,ml9951/ghc,ezyang/ghc,spacekitteh/smcghc,ghc-android/ghc,GaloisInc/halvm-ghc,ryantm/ghc,GaloisInc/halvm-ghc,ekmett/ghc,nomeata/ghc,forked-upstream-packages-for-ghcjs/ghc,ghc-android/ghc,lukexi/ghc,holzensp/ghc,lukexi/ghc-7.8-arm64,nkaretnikov/ghc,urbanslug/ghc,snoyberg/ghc,anton-dessiatov/ghc,nushio3/ghc,mcschroeder/ghc,sdiehl/ghc,oldmanmike/ghc,mcmaniac/ghc,green-haskell/ghc,nkaretnikov/ghc,vTurbine/ghc,nathyong/microghc-ghc,gridaphobe/ghc,nomeata/ghc,green-haskell/ghc,ilyasergey/GHC-XAppFix,gridaphobe/ghc,gcampax/ghc,mettekou/ghc,elieux/ghc,mfine/ghc,mcmaniac/ghc,oldmanmike/ghc,hferreiro/replay,vTurbine/ghc,ezyang/ghc,lukexi/ghc,nushio3/ghc,sgillespie/ghc,ml9951/ghc,hferreiro/replay,olsner/ghc,olsner/ghc,AlexanderPankiv/ghc,sgillespie/ghc,mettekou/ghc,ghc-android/ghc,siddhanathan/ghc,wxwxwwxxx/ghc,da-x/ghc,mfine/ghc,GaloisInc/halvm-ghc,oldmanmike/ghc,nkaretnikov/ghc,TomMD/ghc,forked-upstream-packages-for-ghcjs/ghc,holzensp/ghc,elieux/ghc,vikraman/ghc,elieux/ghc,elieux/ghc,tibbe/ghc,ezyang/ghc,ezyang/ghc,urbanslug/ghc,AlexanderPankiv/ghc,snoyberg/ghc,da-x/ghc,gcampax/ghc,mfine/ghc,mettekou/ghc,mfine/ghc,sdiehl/ghc,lukexi/ghc-7.8-arm64,tjakway/ghcjvm,tjakway/ghcjvm,mcmaniac/ghc,GaloisInc/halvm-ghc,nkaretnikov/ghc,sdiehl/ghc,TomMD/ghc,christiaanb/ghc,ilyasergey/GHC-XAppFix,mettekou/ghc,vTurbine/ghc,tjakway/ghcjvm,siddhanathan/ghc,gridaphobe/ghc,wxwxwwxxx/ghc,lukexi/ghc,siddhanathan/ghc,mettekou/ghc,bitemyapp/ghc,AlexanderPankiv/ghc,vikraman/ghc,ml9951/ghc,nathyong/microghc-ghc,anton-dessiatov/ghc,ezyang/ghc,nushio3/ghc,siddhanathan/ghc,tibbe/ghc,ekmett/ghc,forked-upstream-packages-for-ghcjs/ghc,snoyberg/ghc,tjakway/ghcjvm,nkaretnikov/ghc,mettekou/ghc,hferreiro/replay,jstolarek/ghc,gcampax/ghc,ghc-android/ghc,sdiehl/ghc,GaloisInc/halvm-ghc,frantisekfarka/ghc-dsi,fmthoma/ghc,mfine/ghc,ilyasergey/GHC-XAppFix,shlevy/ghc,green-haskell/ghc,lukexi/ghc-7.8-arm64,oldmanmike/ghc,da-x/ghc,shlevy/ghc,snoyberg/ghc,shlevy/ghc,vTurbine/ghc,fmthoma/ghc,gridaphobe/ghc,TomMD/ghc,lukexi/ghc,elieux/ghc,nomeata/ghc,urbanslug/ghc,lukexi/ghc-7.8-arm64,christiaanb/ghc,ghc-android/ghc,TomMD/ghc,vTurbine/ghc,gridaphobe/ghc,shlevy/ghc,anton-dessiatov/ghc,oldmanmike/ghc,da-x/ghc,gcampax/ghc,siddhanathan/ghc,tjakway/ghcjvm,nushio3/ghc,AlexanderPankiv/ghc,mcschroeder/ghc,AlexanderPankiv/ghc,acowley/ghc,nushio3/ghc,tibbe/ghc,frantisekfarka/ghc-dsi,hferreiro/replay,urbanslug/ghc,nkaretnikov/ghc,ezyang/ghc,wxwxwwxxx/ghc,gcampax/ghc,mcmaniac/ghc,sgillespie/ghc,jstolarek/ghc,tjakway/ghcjvm,wxwxwwxxx/ghc,mcschroeder/ghc,jstolarek/ghc,GaloisInc/halvm-ghc,vikraman/ghc,tjakway/ghcjvm,frantisekfarka/ghc-dsi,anton-dessiatov/ghc,acowley/ghc,vTurbine/ghc,mettekou/ghc,nathyong/microghc-ghc,mcschroeder/ghc,urbanslug/ghc