macro.c (_cpp_builtin_macro_text): Handle BT_COUNTER.

	* macro.c (_cpp_builtin_macro_text): Handle BT_COUNTER.
	* pch.c (cpp_write_pch_deps): Save __COUNTER__ state.
	(cpp_write_pch_state): Save __COUNTER__ state.
	(cpp_valid_state): Check valid __COUNTER__ state.
	(cpp_read_state): Read new __COUNTER__ state.
	* include/cpplib.h (enum builtin_type): Add BT_COUNTER enumerator.
	* init.c (builtin_array): Add __COUNTER__/BT_COUNTER.
	* internal.h (struct cpp_reader): Add counter member.

	* gcc.dg/cpp/counter-1.c: New test.
	* gcc.dg/pch/counter-1.c: New test.
	* gcc.dg/pch/counter-1.hs: New file.
	* gcc.dg/pch/counter-2.c: New test.
	* gcc.dg/pch/counter-2.hs: New file.
	* gcc.dg/pch/counter-3.c: New test.
	* gcc.dg/pch/counter-3.hs: New file.

	* doc/cpp.texi (Common Predefined Macros): Add __COUNTER__
	description.

From-SVN: r125041

8 files changed, 80 insertions, 0 deletions

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index e230bc3..7a33bde 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,13 @@
+2007-05-24  Ollie Wild  <aaw@google.com>
+
+	* gcc.dg/cpp/counter-1.c: New test.
+	* gcc.dg/pch/counter-1.c: New test.
+	* gcc.dg/pch/counter-1.hs: New file.
+	* gcc.dg/pch/counter-2.c: New test.
+	* gcc.dg/pch/counter-2.hs: New file.
+	* gcc.dg/pch/counter-3.c: New test.
+	* gcc.dg/pch/counter-3.hs: New file.
+
 2007-05-24  Zdenek Dvorak  <dvorakz@suse.cz>
 
 	* gcc.dg/tree-ssa/predcom-1.c: New test.
diff --git a/gcc/testsuite/gcc.dg/cpp/counter-1.c b/gcc/testsuite/gcc.dg/cpp/counter-1.c
new file mode 100644
index 0000000..80d8b78
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/cpp/counter-1.c
@@ -0,0 +1,20 @@
+/* Copyright (C) 2007 Free Software Foundation
+   Contributed by Ollie Wild <aaw@google.com> */
+
+/* { dg-do preprocess } */
+
+/* Tests __COUNTER__ macro is correctly expanded.  */
+
+#define counter __COUNTER__
+
+#if __COUNTER__ != 0
+#error __COUNTER__ != 0
+#endif
+
+#if counter != 1
+#error counter != 1
+#endif
+
+#if __COUNTER__ != 2
+#error __COUNTER__ != 2
+#endif
diff --git a/gcc/testsuite/gcc.dg/pch/counter-1.c b/gcc/testsuite/gcc.dg/pch/counter-1.c
new file mode 100644
index 0000000..79cea88
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/counter-1.c
@@ -0,0 +1,9 @@
+/* Copyright (C) 2007 Free Software Foundation
+   Contributed by Ollie Wild <aaw@google.com> */
+
+#include "counter-1.h"
+
+int main(void) 
+{
+  return __COUNTER__;
+}
diff --git a/gcc/testsuite/gcc.dg/pch/counter-1.hs b/gcc/testsuite/gcc.dg/pch/counter-1.hs
new file mode 100644
index 0000000..c3d2ce7
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/counter-1.hs
@@ -0,0 +1,5 @@
+/* Copyright (C) 2007 Free Software Foundation
+   Contributed by Ollie Wild <aaw@google.com> */
+
+static unsigned offset[] = {__COUNTER__, __COUNTER__, __COUNTER__};
+#define counter __COUNTER__
diff --git a/gcc/testsuite/gcc.dg/pch/counter-2.c b/gcc/testsuite/gcc.dg/pch/counter-2.c
new file mode 100644
index 0000000..7bbde23
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/counter-2.c
@@ -0,0 +1,15 @@
+/* Copyright (C) 2007 Free Software Foundation
+   Contributed by Ollie Wild <aaw@google.com> */
+
+/* { dg-options "-I. -Winvalid-pch" } */
+
+#if __COUNTER__ != 0
+#error __COUNTER__ != 0
+#endif
+
+#include "counter-2.h"/* { dg-error "`__COUNTER__' is invalid|No such file|they were invalid" } */
+
+int main(void) 
+{
+  return __COUNTER__;
+}
diff --git a/gcc/testsuite/gcc.dg/pch/counter-2.hs b/gcc/testsuite/gcc.dg/pch/counter-2.hs
new file mode 100644
index 0000000..63b8a2b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/counter-2.hs
@@ -0,0 +1,4 @@
+/* Copyright (C) 2007 Free Software Foundation
+   Contributed by Ollie Wild <aaw@google.com> */
+
+static int i = __COUNTER__;
diff --git a/gcc/testsuite/gcc.dg/pch/counter-3.c b/gcc/testsuite/gcc.dg/pch/counter-3.c
new file mode 100644
index 0000000..8279205
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/counter-3.c
@@ -0,0 +1,13 @@
+/* Copyright (C) 2007 Free Software Foundation
+   Contributed by Ollie Wild <aaw@google.com> */
+
+#if __COUNTER__ != 0
+#error __COUNTER__ != 0
+#endif
+
+#include "counter-3.h"
+
+int main(void) 
+{
+  return __COUNTER__;
+}
diff --git a/gcc/testsuite/gcc.dg/pch/counter-3.hs b/gcc/testsuite/gcc.dg/pch/counter-3.hs
new file mode 100644
index 0000000..19039c8
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pch/counter-3.hs
@@ -0,0 +1,4 @@
+/* Copyright (C) 2007 Free Software Foundation
+   Contributed by Ollie Wild <aaw@google.com> */
+
+#define counter __COUNTER__