llvm-project/openmp/runtime/test/ompt/parallel/dynamic_not_enough_threads.c
Rainer Orth 1b4f161978
[OpenMP][test] Make %p 0x prefix optional (#138514)
Testing `openmp` on Solaris/amd64 shows a large number of failures, all
due to the same issue:

```
# .---command stderr------------
# | openmp/runtime/test/ompt/misc/interoperability.cpp:67:16: error: CHECK-SAME: expected string not found in input
# | // CHECK-SAME: parent_task_frame.reenter={{0x[0-f]+}}
# |                ^
# | <stdin>:5:101: note: scanning from here
# | 281474976710658: ompt_event_parallel_begin: parent_task_id=281474976710659, parent_task_frame.exit=0, parent_task_frame.reenter=7fffbedffe90, parallel_id=281474976710661, requested_team_size=2, codeptr_ra=408b8e, invoker=2
```

The testsuite expects pointers to be printed with a `0x` prefix when
using the `%p` format, while Solaris `libc` just prints them in hex
without a prefix.

However, this difference is completely benign. ISO C (up to C23,
7.23.6.1) states

```
p	The argument shall be a pointer to void or a pointer to a character
	type. The value of the pointer is converted to a sequence of printing
	characters, in an implementation-defined manner.
```

I saw two ways around this:

- replace every instance of `%p` with a macro (`KMP_PTR_FMT`, defined as
`"%p"` or `"0x%p" as appropriate), or
- adjust the testsuite to make the `0x` prefix optional

The second route seemed less intrusive and more readable, so that's what
this patch does. While large, it's also completely mechanical.

Tested on `amd64-pc-solaris2.11` and `x86_64-pc-linux-gnu`.
2025-05-10 09:50:08 +02:00

44 lines
2.0 KiB
C

// RUN: %libomp-compile && env OMP_THREAD_LIMIT=2 %libomp-run | FileCheck %s
// REQUIRES: ompt
#include "callback.h"
int main()
{
omp_set_dynamic(1);
#pragma omp parallel num_threads(4)
{
print_ids(0);
print_ids(1);
}
print_fuzzy_address(1);
// Check if libomp supports the callbacks for this test.
// CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_thread_begin'
// CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_thread_end'
// CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_parallel_begin'
// CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_parallel_end'
// CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_implicit_task'
//team-size of 1-4 is expected
// CHECK: 0: NULL_POINTER=[[NULL:.*$]]
// make sure initial data pointers are null
// CHECK-NOT: 0: parallel_data initially not null
// CHECK-NOT: 0: task_data initially not null
// CHECK-NOT: 0: thread_data initially not null
// CHECK: {{^}}[[MASTER_ID:[0-9]+]]: ompt_event_parallel_begin: parent_task_id=[[PARENT_TASK_ID:[0-9]+]], parent_task_frame.exit=[[NULL]], parent_task_frame.reenter={{(0x)?[0-f]+}}, parallel_id=[[PARALLEL_ID:[0-9]+]], requested_team_size=4, codeptr_ra=[[RETURN_ADDRESS:(0x)?[0-f]+]]{{[0-f][0-f]}}, invoker=[[PARALLEL_INVOKER:[0-9]+]]
// CHECK: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]], team_size={{[1-4]}}
// CHECK: {{^}}[[MASTER_ID]]: task level 0: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// CHECK: {{^}}[[MASTER_ID]]: task level 1: parallel_id=[[IMPLICIT_PARALLEL_ID:[0-9]+]], task_id=[[PARENT_TASK_ID]]
// CHECK: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
// CHECK: {{^}}[[MASTER_ID]]: ompt_event_parallel_end: parallel_id=[[PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
// CHECK: {{^}}[[MASTER_ID]]: fuzzy_address={{.*}}[[RETURN_ADDRESS]]
return 0;
}