obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
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1 files changed, 30 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.dg/debug/dwarf2/typedef6.C b/gcc/testsuite/g++.dg/debug/dwarf2/typedef6.C
new file mode 100644
index 000000000..8896446a7
--- /dev/null
+++ b/gcc/testsuite/g++.dg/debug/dwarf2/typedef6.C
@@ -0,0 +1,30 @@
+// Origin PR debug/
+// { dg-options "-g -dA" }
+
+class C {
+public:
+  C() {}
+  ~C() {}
+};
+typedef struct {
+  C m;
+} t;
+typedef t s;
+s v;
+
+/*
+  We want to check that we have a DIE describing the typedef t like this:
+
+	.uleb128 0xc	# (DIE (0xb8) DW_TAG_typedef)
+	.ascii "t\0"	# DW_AT_name
+	.byte	0x1	# DW_AT_decl_file (../../prtests/test.cc)
+	.byte	0xb	# DW_AT_decl_line
+	.long	0x78	# DW_AT_type
+
+  e.g, it should not haven any child DIE -- the bug here was that this
+  DIE had children DIEs. So we check that the last line is immediately
+  followed by a line containing the pattern "(DIE (", instead of a
+  line containing a DW_AT_sibling attribute.
+ */
+
+// { dg-final { scan-assembler-times "\[^\n\r\]*\\(DIE \[^\n\r\]* DW_TAG_typedef\\)\[\n\r\]{1,2}\[^\n\r\].*\"t\\\\0\"\[^\n\r\]*DW_AT_name\[\n\r\]{1,2}\[^\n\r\]*\[\n\r\]{1,2}\[^\n\r\]*\[\n\r\]{1,2}\[^\n\r\]*DW_AT_type\[\n\r\]{1,2}\[^\n\r\]*\\(DIE" 1 } }