Updated llvm, clang submodules to pre-3.0 trunk
Updated llvm, clang submodules to pre-3.0 trunk

dan-tull/Halide,tdenniston/Halide,ayanazmat/Halide,kgnk/Halide,kenkuang1213/Halide,ronen/Halide,dan-tull/Halide,dougkwan/Halide,tdenniston/Halide,kgnk/Halide,smxlong/Halide,mikeseven/Halide,kgnk/Halide,gchauras/Halide,mikeseven/Halide,fengzhyuan/Halide,rodrigob/Halide,ayanazmat/Halide,fengzhyuan/Halide,myrtleTree33/Halide,smxlong/Halide,kenkuang1213/Halide,jiawen/Halide,rodrigob/Halide,tdenniston/Halide,ayanazmat/Halide,lglucin/Halide,ronen/Halide,dougkwan/Halide,aam/Halide,aam/Halide,myrtleTree33/Halide,smxlong/Halide,fengzhyuan/Halide,smxlong/Halide,ayanazmat/Halide,adasworks/Halide,kgnk/Halide,delcypher/Halide,ayanazmat/Halide,delcypher/Halide,dougkwan/Halide,fengzhyuan/Halide,tdenniston/Halide,adasworks/Halide,aam/Halide,aam/Halide,mcanthony/Halide,damienfir/Halide,rodrigob/Halide,rodrigob/Halide,ronen/Halide,smxlong/Halide,rodrigob/Halide,damienfir/Halide,dougkwan/Halide,fengzhyuan/Halide,jiawen/Halide,lglucin/Halide,delcypher/Halide,rodrigob/Halide,jiawen/Halide,lglucin/Halide,mikeseven/Halide,myrtleTree33/Halide,adasworks/Halide,psuriana/Halide,kenkuang1213/Halide,smxlong/Halide,mikeseven/Halide,lglucin/Halide,kgnk/Halide,aam/Halide,kenkuang1213/Halide,rodrigob/Halide,mcanthony/Halide,dan-tull/Halide,myrtleTree33/Halide,psuriana/Halide,ronen/Halide,lglucin/Halide,dan-tull/Halide,jiawen/Halide,gchauras/Halide,lglucin/Halide,ronen/Halide,dan-tull/Halide,damienfir/Halide,dan-tull/Halide,kgnk/Halide,kenkuang1213/Halide,damienfir/Halide,adasworks/Halide,kenkuang1213/Halide,psuriana/Halide,dougkwan/Halide,damienfir/Halide,tdenniston/Halide,delcypher/Halide,ronen/Halide,adasworks/Halide,mcanthony/Halide,gchauras/Halide,jiawen/Halide,dan-tull/Halide,adasworks/Halide,gchauras/Halide,smxlong/Halide,delcypher/Halide,gchauras/Halide,myrtleTree33/Halide,ayanazmat/Halide,dougkwan/Halide,jiawen/Halide,mikeseven/Halide,adasworks/Halide,jiawen/Halide,myrtleTree33/Halide,tdenniston/Halide,ronen/Halide,aam/Halide,psuriana/Halide,delcypher/Halide,fengzhyuan/Halide,damienfir/Halide,mcanthony/Halide,kgnk/Halide,ayanazmat/Halide,psuriana/Halide,dougkwan/Halide,kgnk/Halide,tdenniston/Halide,psuriana/Halide,mcanthony/Halide,gchauras/Halide,ronen/Halide,damienfir/Halide,mcanthony/Halide,mcanthony/Halide,adasworks/Halide,dan-tull/Halide,myrtleTree33/Halide,ayanazmat/Halide,delcypher/Halide,lglucin/Halide,damienfir/Halide,rodrigob/Halide,psuriana/Halide,delcypher/Halide,dougkwan/Halide,fengzhyuan/Halide,kenkuang1213/Halide,fengzhyuan/Halide,mcanthony/Halide,myrtleTree33/Halide,tdenniston/Halide,kenkuang1213/Halide,smxlong/Halide,aam/Halide