Among the changes of test results with a -std=gnu23 default were two
tests changing from PASS to UNSUPPORTED:
UNSUPPORTED: gcc.dg/simulate-thread/speculative-store.c -O2 -g thread
simulation test
UNSUPPORTED: gcc.dg/simulate-thread/speculative-store.c -O3 -g thread
simulation test
It appears that functions defined with () becoming prototyped affects
inlining, and changing the code to use (void) allows UNSUPPORTED
results to be reproduced with -std=gnu17. Add __attribute__
((noinline)) on one more function to avoid the UNSUPPORTED results;
some of the tests in this directory already have such an attribute on
some functions.
Tested for x86_64-pc-linux-gnu. OK to commit?
* gcc.dg/simulate-thread/simulate-thread.h
(simulate_thread_wrapper_final_verify): Mark noinline.
diff --git a/gcc/testsuite/gcc.dg/simulate-thread/simulate-thread.h
b/gcc/testsuite/gcc.dg/simulate-thread/simulate-thread.h
index 22c05084ee7..b582220694e 100644
--- a/gcc/testsuite/gcc.dg/simulate-thread/simulate-thread.h
+++ b/gcc/testsuite/gcc.dg/simulate-thread/simulate-thread.h
@@ -116,7 +116,7 @@ simulate_thread_wrapper_other_threads()
/* If the test case defines HOSTILE_PAUSE_ERROR, then the test case
will fail execution if it had a hostile pause. */
-int
+__attribute__ ((noinline)) int
simulate_thread_wrapper_final_verify ()
{
int ret = simulate_thread_final_verify ();
--
Joseph S. Myers
josmy...@redhat.com
