Implementation of pre-compiled headers (PCH) based on lazy

de-serialization of abstract syntax trees.

PCH support serializes the contents of the abstract syntax tree (AST)
to a bitstream. When the PCH file is read, declarations are serialized
as-needed. For example, a declaration of a variable "x" will be
deserialized only when its VarDecl can be found by a client, e.g.,
based on name lookup for "x" or traversing the entire contents of the
owner of "x".

This commit provides the framework for serialization and (lazy)
deserialization, along with support for variable and typedef
declarations (along with several kinds of types). More
declarations/types, along with important auxiliary structures (source
manager, preprocessor, etc.), will follow.

llvm-svn: 68732

1 files changed, 3 insertions, 0 deletions

diff --git a/clang/test/TestRunner.sh b/clang/test/TestRunner.sh
index 754ab300603..66c1e1eab52 100755
--- a/clang/test/TestRunner.sh
+++ b/clang/test/TestRunner.sh
@@ -8,6 +8,7 @@
 #
 #     %s - Replaced with the input name of the program, or the program to
 #          execute, as appropriate.
+#     %S - Replaced with the directory where the input file resides
 #     %prcontext - prcontext.tcl script
 #     %t - temporary file name (derived from testcase name)
 #
@@ -15,6 +16,7 @@
 FILENAME=$1
 TESTNAME=$1
 SUBST=$1
+FILEDIR=`dirname $TESTNAME`
 
 OUTPUT=Output/$1.out
 
@@ -78,6 +80,7 @@ grep 'RUN:' $FILENAME | \
       -e "s| clang | $CLANG |g" \
       -e "s| clang-cc | $CLANGCC |g" \
       -e "s|%s|$SUBST|g" \
+      -e "s|%S|$FILEDIR|g" \
       -e "s|%prcontext|prcontext.tcl|g" \
       -e "s|%t|$TEMPOUTPUT|g" > $SCRIPT