[project @ 2001-03-02 14:28:44 by simonmar] Yet another good bug (I'm on a roll today! :-)
[project @ 2001-03-02 14:28:44 by simonmar]
Yet another good bug (I'm on a roll today! :-)

When squeezing update frames, make sure the updatee pointers aren't
identical before updating one to point to the other.  This is mostly
harmless, but in one example I have caused the program to go into an
infinite loop rather than fall down a black hole.

To be merged into the 4.08 branch.

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