[PATCH v2] tsan: Add param to disable func-entry-exit instrumentation

[Marco Elver]

On Fri, 12 Jun 2020, Jakub Jelinek wrote:

> On Fri, Jun 12, 2020 at 04:07:57PM +0200, Marco Elver wrote:
> > gcc/ChangeLog:
> > 
> > 	* params.opt: Add --param=tsan-instrument-func-entry-exit=.
> > 	* tsan.c (instrument_gimple): Make return value if func entry
> > 	and exit should be instrumented dependent on param.
> > 
> > gcc/testsuite/ChangeLog:
> > 
> > 	* c-c++-common/tsan/func_entry_exit.c: New test.
> > 	* c-c++-common/tsan/func_entry_exit_disabled.c: New test.
> 
> Ok.

Thanks!

Somehow the commit message contained the old changelog entry, this is
the new one:

gcc/ChangeLog:

	* gimplify.c (gimplify_function_tree): Optimize and do not emit
	IFN_TSAN_FUNC_EXIT in a finally block if we do not need it.
	* params.opt: Add --param=tsan-instrument-func-entry-exit=.
	* tsan.c (instrument_memory_accesses): Make
	fentry_exit_instrument bool depend on new param.

gcc/testsuite/ChangeLog:

	* c-c++-common/tsan/func_entry_exit.c: New test.
	* c-c++-common/tsan/func_entry_exit_disabled.c: New test.


-- Marco