New asan-instrumentation-with-call-threshold parameter.

New asan-instrumentation-with-call-threshold parameter.

2014-06-16  Yury Gribov  <y.gribov@samsung.com>

	New asan-instrumentation-with-call-threshold parameter.

	gcc/
	* asan.c (check_func): New function.
	(maybe_create_ssa_name): Likewise.
	(build_check_stmt_with_calls): Likewise.
	(use_calls_p): Likewise.
	(report_error_func): Change interface.
	(build_check_stmt): Allow non-integer lengths; add support
	for new parameter.
	(asan_instrument): Likewise.
	(instrument_mem_region_access): Moved code to
	build_check_stmt.
	(instrument_derefs): Likewise.
	(instrument_strlen_call): Likewise.
	* cfgcleanup.c (old_insns_match_p): Add support for new
	functions.
	* doc/invoke.texi: Describe new parameter.
	* params.def: Define new parameter.
	* params.h: Likewise.
	* sanitizer.def: Describe new builtins.

	gcc/testsuite/
	* c-c++-common/asan/instrument-with-calls-1.c: New test.
	* c-c++-common/asan/instrument-with-calls-2.c: Likewise.
	* c-c++-common/asan/instrument-with-calls-3.c: Likewise.
	* c-c++-common/asan/no-redundant-instrumentation-1.c: Update
	test patterns.
	* c-c++-common/asan/no-redundant-instrumentation-2.c:
	Likewise.
	* c-c++-common/asan/no-redundant-instrumentation-4.c:
	Likewise.
	* c-c++-common/asan/no-redundant-instrumentation-5.c:
	Likewise.
	* c-c++-common/asan/no-redundant-instrumentation-6.c:
	Likewise.
	* c-c++-common/asan/no-redundant-instrumentation-7.c:
	Likewise.
	* c-c++-common/asan/no-redundant-instrumentation-8.c:
	Likewise.

From-SVN: r211699