added floating point constant propagation
added floating point constant propagation

mobiphil/tinnycc,seyko2/tinycc,FriedBreakfast/tcc,alfonsokim/tinycc,Archs/TinyCC,acook/tinycc,fstudio/tinycc,andrewchambers/tccmirror,leeduhem/tinycc,avih/tinycc,xcm/tcc,Saectar/inherpreter,mobiphil/tinnycc,Saectar/inherpreter,andrewchambers/tccmirror,Saectar/inherpreter,soywiz/tinycc,FriedBreakfast/tcc,soywiz/tinycc,mingodad/tinycc,mitake/tinycc,seyko2/tinycc,ftdi-paul-jiao/tinyCC,Archs/TinyCC,gfwilliams/tinycc,xcm/tcc,mobiphil/tinnycc,rchandramouli/tinycc,avih/tinycc,mobiphil/tinnycc,leeduhem/tinycc,ftdi-paul-jiao/tinyCC,andrewchambers/tccmirror,mitake/tinycc,metaeducation/tcc,metaeducation/tcc,gfwilliams/tinycc,shinh/nacltcc,melkior/tinycc,Saectar/inherpreter,rchandramouli/tinycc,run4flat/tinycc,leeduhem/tinycc,gfwilliams/tinycc,metaeducation/tcc,fstudio/tinycc,acook/tinycc,alfonsokim/tinycc,acook/tinycc,shinh/nacltcc,Wallbraker/DCPU-TCC,seyko2/tinycc,mirror/tinycc,run4flat/tinycc,code4game/tinycc,melkior/tinycc,avih/tinycc,leeduhem/tinycc,ftdi-paul-jiao/tinyCC,mingodad/tinycc,seyko2/tinycc,xcm/tcc,FriedBreakfast/tcc,yousong/tinycc,andreiw/tinycc,rchandramouli/tinycc,fstudio/tinycc,acook/tinycc,run4flat/tinycc,leeduhem/tinycc,alfonsokim/tinycc,melkior/tinycc,mirror/tinycc,Wallbraker/DCPU-TCC,soywiz/tinycc,mirror/tinycc,Archs/TinyCC,mirror/tinycc,avih/tinycc,FriedBreakfast/tcc,andrewchambers/tccmirror,shinh/nacltcc,alfonsokim/tinycc,FriedBreakfast/tcc,andreiw/tinycc,melkior/tinycc,mitake/tinycc,gfwilliams/tinycc,fstudio/tinycc,mitake/tinycc,code4game/tinycc,seyko2/tinycc,metaeducation/tcc,rchandramouli/tinycc,yousong/tinycc,andrewchambers/tccmirror,yousong/tinycc,ftdi-paul-jiao/tinyCC,mingodad/tinycc,fstudio/tinycc,yousong/tinycc,run4flat/tinycc,alfonsokim/tinycc,run4flat/tinycc,melkior/tinycc,code4game/tinycc,shinh/nacltcc,shinh/nacltcc,gfwilliams/tinycc,Archs/TinyCC,andreiw/tinycc,rchandramouli/tinycc,soywiz/tinycc,Wallbraker/DCPU-TCC,Saectar/inherpreter,metaeducation/tcc,mingodad/tinycc,Archs/TinyCC