Take DW_AT_comp_dir from $PWD when it's present and starts with a '/'. This is
closer to what GCC does, except that GCC also checks that the inodes for $PWD
and '.' match.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142633 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Driver/debug.c b/test/Driver/debug.c
new file mode 100644
index 0000000..2ed8921
--- /dev/null
+++ b/test/Driver/debug.c
@@ -0,0 +1,8 @@
+// RUN: %clang -### -g %s -c 2>&1 | grep '"-fdebug-compilation-dir" "'%S'"'
+// RUN: PWD=/foo %clang -### -g %s -c 2>&1 | grep '"-fdebug-compilation-dir" "/foo"'
+
+// This test uses grep instead of FileCheck so that we get %S -> dirname
+// substitution.
+
+// "PWD=/foo gcc" wouldn't necessarily work. You would need to pick a different
+// path to the same directory (try a symlink).