Initial skeleton of Subzero.

.gitignore

Index: .gitignore
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..cff0ee8f31690d1c78eb3398d200c7e74e395e38
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,31 @@
+#==============================================================================#
+# Inspired by LLVM's .gitignore
+#==============================================================================#
+
+#==============================================================================#
+# File extensions to be ignored anywhere in the tree.
+#==============================================================================#
+# Temp files created by most text editors.
+*~
+# Merge files created by git.
+*.orig
+# Byte compiled python modules.
+*.pyc
+# vim swap files
+.*.swp
+.sw?
+*.o
+
+#==============================================================================#
+# Explicit files to ignore (only matches one).
+#==============================================================================#
+.gitusers
+autom4te.cache
+cscope.files
+cscope.out
+autoconf/aclocal.m4
+autoconf/autom4te.cache
+compile_commands.json
+tags
+subzerotest
+llvm2ice