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tmcontext01: Prevent optimizations

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The previous method to prevent optimizations no longer worked at least
with GCC 13.  Disable intra-procedural optimizations.
This commit is contained in:
Sebastian Huber
2024-01-09 10:27:39 +01:00
parent 150dcf5e47
commit 08fd47b803
1 changed files with 3 additions and 12 deletions
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15
testsuites/tmtests/tmcontext01/init.c
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@@ -49,8 +49,6 @@ const char rtems_test_name[] = "TMCONTEXT 1";
static rtems_counter_ticks t[SAMPLES]; static rtems_counter_ticks t[SAMPLES];
static volatile int prevent_optimization;
static size_t cache_line_size; static size_t cache_line_size;
static size_t data_size; static size_t data_size;
@@ -72,17 +70,13 @@ static int dirty_data_cache(volatile int *data, size_t n, size_t clsz, int j)
return i + j; return i + j;
} }
static int call_at_level( static __attribute__((__noipa__)) void call_at_level(
int start, int start,
int fl, int fl,
int s, int s,
bool dirty bool dirty
) )
{ {
int prevent_optimization;
prevent_optimization = start + fl;
if (fl == start) { if (fl == start) {
/* /*
* Some architectures like the SPARC have register windows. A side-effect * Some architectures like the SPARC have register windows. A side-effect
@@ -99,6 +93,7 @@ static int call_at_level(
s, s,
dirty dirty
); );
__asm__ volatile ("" : : : "memory");
} else { } else {
char *volatile space; char *volatile space;
rtems_counter_ticks a; rtems_counter_ticks a;
@@ -120,8 +115,6 @@ static int call_at_level(
b = rtems_counter_read(); b = rtems_counter_read();
t[s] = rtems_counter_difference(b, a); t[s] = rtems_counter_difference(b, a);
} }
return prevent_optimization;
} }
static void load_task(rtems_task_argument arg) static void load_task(rtems_task_argument arg)
@@ -149,7 +142,7 @@ static void sort_t(void)
qsort(&t[0], SAMPLES, sizeof(t[0]), cmp); qsort(&t[0], SAMPLES, sizeof(t[0]), cmp);
} }
static void test_by_function_level(int fl, bool dirty) static __attribute__((__noipa__)) void test_by_function_level(int fl, bool dirty)
{ {
RTEMS_INTERRUPT_LOCK_DECLARE(, lock) RTEMS_INTERRUPT_LOCK_DECLARE(, lock)
rtems_interrupt_lock_context lock_context; rtems_interrupt_lock_context lock_context;
@@ -160,8 +153,6 @@ static void test_by_function_level(int fl, bool dirty)
uint64_t q3; uint64_t q3;
uint64_t max; uint64_t max;
fl += prevent_optimization;
rtems_interrupt_lock_initialize(&lock, "test"); rtems_interrupt_lock_initialize(&lock, "test");
rtems_interrupt_lock_acquire(&lock, &lock_context); rtems_interrupt_lock_acquire(&lock, &lock_context);