move docs generation

docs/Doxyfile

Index: docs/Doxyfile
diff --git a/Doxyfile b/docs/Doxyfile
similarity index 99%
rename from Doxyfile
rename to docs/Doxyfile
index 0fec183ad68195089272f7f3e3398a4c543daad2..14531c75c40072ed973f70ad4c6d1ef708b09750 100644
--- a/Doxyfile
+++ b/docs/Doxyfile
@@ -58,7 +58,7 @@ PROJECT_LOGO           =
 # entered, it will be relative to the location where doxygen was started. If
 # left blank the current directory will be used.
 
-OUTPUT_DIRECTORY       = "docs"
+OUTPUT_DIRECTORY       = "../build/docs"
 
 # If the CREATE_SUBDIRS tag is set to YES, then doxygen will create 4096 sub-
 # directories (in 2 levels) under the output directory of each output format and
@@ -743,13 +743,13 @@ WARN_LOGFILE           =
 # spaces.
 # Note: If this tag is empty the current directory is searched.
 
-INPUT                  = "src" \
-                         "../llvm/include/llvm/ADT" \
-                         "../llvm/include/llvm/Bitcode" \
-                         "../llvm/include/llvm/Config" \
-                         "../llvm/include/llvm/IR" \
-                         "../llvm/include/llvm/IRReader" \
-                         "../llvm/include/llvm/Support"
+INPUT                  = "../src" \
+                         "../../llvm/include/llvm/ADT" \
+                         "../../llvm/include/llvm/Bitcode" \
+                         "../../llvm/include/llvm/Config" \
+                         "../../llvm/include/llvm/IR" \
+                         "../../llvm/include/llvm/IRReader" \
+                         "../../llvm/include/llvm/Support"
 
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses