coverage.c (bbg_file_stamp): New.

	* coverage.c (bbg_file_stamp): New.
	(read_counts_file): Merge incoming stamp with bbg_file_stamp.
	(build_info): Write bbg_file_stamp.
	(coverage_init): Initialize bbg_file_stamp.  Read counts file
	before writing graph header.
	(coverage_finish): Don't unlink the data file if we can generate a
	unique file stamp.
	* tree.h (crc32_unsigned): Declare.
	* tree.c (crc32_unsigned_bits): New, broken out of ...
	(crc32_byte): ... here.  Use it.
	(crc32_unsigned): New.

From-SVN: r189095

1 files changed, 1 insertions, 0 deletions

diff --git a/gcc/tree.h b/gcc/tree.h
index 5df8b84..43d5fdc 100644
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -5170,6 +5170,7 @@ inlined_function_outer_scope_p (const_tree block)
 /* In tree.c */
 extern unsigned crc32_string (unsigned, const char *);
 extern unsigned crc32_byte (unsigned, char);
+extern unsigned crc32_unsigned (unsigned, unsigned);
 extern void clean_symbol_name (char *);
 extern tree get_file_function_name (const char *);
 extern tree get_callee_fndecl (const_tree);