Header fix for trunk llvm.
Header fix for trunk llvm.

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