.gitignore ignores build/install and working llvm directories

.gitignore

@@ -27,10 +27,11 @@ cfg.foo.dot
 lit.site.cfg
 *.dot
 JITTests.exports
-llvm/include/llvm/Config/config.h
-llvm/include/llvm/Config/llvm-config.h
-llvm/include/llvm/Support/DataTypes.h
-llvm/test/VISC/parboil/benchmarks/*/run
-llvm/test/VISC/parboil/benchmarks/*/build
-llvm/build
-llvm/install
+
+hpvm/build
+hpvm/install
+llvm/
+llvm-*.src/
+llvm-*.src.tar.xz
+hpvm/projects/visc-rt/visc-rt.ll
+hpvm/test/parboil/benchmarks/*/build/