[llvm] [AMDGPU] Improve the description of asyncmark semantics (PR #202579)

Sun Jun 21 23:00:46 PDT 2026

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `openmp-offload-amdgpu-clang-flang` running on `rocm-worker-hw-01` while building `llvm` at step 3 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/67/builds/7071

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 3 (annotate) failure: 'python ../llvm.src/offload/ci/openmp-offload-amdgpu-clang-flang.py ...' (failure)
...
UNSUPPORTED: libomptarget :: x86_64-unknown-linux-gnu :: api/omp_indirect_func_struct.c (832 of 1384)
PASS: libomptarget :: amdgcn-amd-amdhsa :: ompt/veccopy_no_device_init.c (833 of 1384)
PASS: libomptarget :: amdgcn-amd-amdhsa :: ompt/veccopy.c (834 of 1384)
PASS: libomptarget :: amdgcn-amd-amdhsa :: offloading/weak.c (835 of 1384)
PASS: libomptarget :: amdgcn-amd-amdhsa :: offloading/malloc.c (836 of 1384)
PASS: libomptarget :: amdgcn-amd-amdhsa :: ompt/veccopy_map.c (837 of 1384)
UNSUPPORTED: libomptarget :: x86_64-unknown-linux-gnu :: api/omp_virtual_func.cpp (838 of 1384)
UNSUPPORTED: libomptarget :: x86_64-unknown-linux-gnu :: api/omp_virtual_func_multiple_inheritance_01.cpp (839 of 1384)
UNSUPPORTED: libomptarget :: x86_64-unknown-linux-gnu :: api/omp_virtual_func_multiple_inheritance_02.cpp (840 of 1384)
UNSUPPORTED: libomptarget :: x86_64-unknown-linux-gnu :: api/omp_virtual_func_reference.cpp (841 of 1384)
FAIL: libomptarget :: amdgcn-amd-amdhsa :: ompt/veccopy_emi.c (842 of 1384)
******************** TEST 'libomptarget :: amdgcn-amd-amdhsa :: ompt/veccopy_emi.c' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 2
/home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./bin/clang -fopenmp    -I /home/botworker/builds/openmp-offload-amdgpu-clang-flang/llvm.src/offload/test -I /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -L /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib/x86_64-unknown-linux-gnu -L /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib/x86_64-unknown-linux-gnu -L /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib -L /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/openmp/runtime/src  -Wl,-rpath,/home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib/x86_64-unknown-linux-gnu -Wl,-rpath,/home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -Wl,-rpath,/home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib/x86_64-unknown-linux-gnu -Wl,-rpath,/home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib  -fopenmp-targets=amdgcn-amd-amdhsa /home/botworker/builds/openmp-offload-amdgpu-clang-flang/llvm.src/offload/test/ompt/veccopy_emi.c -o /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/offload/test/amdgcn-amd-amdhsa/ompt/Output/veccopy_emi.c.tmp -Xoffload-linker -lompdevice && /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/offload/test/amdgcn-amd-amdhsa/ompt/Output/veccopy_emi.c.tmp | /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./bin/FileCheck /home/botworker/builds/openmp-offload-amdgpu-clang-flang/llvm.src/offload/test/ompt/veccopy_emi.c
# executed command: /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./bin/clang -fopenmp -I /home/botworker/builds/openmp-offload-amdgpu-clang-flang/llvm.src/offload/test -I /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -L /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib/x86_64-unknown-linux-gnu -L /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib/x86_64-unknown-linux-gnu -L /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib -L /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -Wl,-rpath,/home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib/x86_64-unknown-linux-gnu -Wl,-rpath,/home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -Wl,-rpath,/home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib/x86_64-unknown-linux-gnu -Wl,-rpath,/home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib -fopenmp-targets=amdgcn-amd-amdhsa /home/botworker/builds/openmp-offload-amdgpu-clang-flang/llvm.src/offload/test/ompt/veccopy_emi.c -o /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/offload/test/amdgcn-amd-amdhsa/ompt/Output/veccopy_emi.c.tmp -Xoffload-linker -lompdevice
# note: command had no output on stdout or stderr
# executed command: /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/offload/test/amdgcn-amd-amdhsa/ompt/Output/veccopy_emi.c.tmp
# .---command stderr------------
# | Display last 2 kernels launched:
# | Kernel 0: 'omp target in main @ 38 (__omp_offloading_fc00_2866394_main_l38)'
# | Kernel 1: 'omp target in main @ 32 (__omp_offloading_fc00_2866394_main_l32)'
# | Use 'OFFLOAD_TRACK_NUM_KERNEL_LAUNCH_TRACES=<num>' to adjust the number of shown stack traces (0 now, up to 8)
# | OFFLOAD ERROR: memory access fault by GPU 2 (agent 0x653fafbc3530) at virtual address 0x787114207000. Reasons: Unknown (0)
# | Use 'OFFLOAD_TRACK_ALLOCATION_TRACES=true' to track device allocations
# `-----------------------------
# error: command failed with exit status: -6
# executed command: /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./bin/FileCheck /home/botworker/builds/openmp-offload-amdgpu-clang-flang/llvm.src/offload/test/ompt/veccopy_emi.c
# .---command stderr------------
# | /home/botworker/builds/openmp-offload-amdgpu-clang-flang/llvm.src/offload/test/ompt/veccopy_emi.c:115:12: error: CHECK: expected string not found in input
# | /// CHECK: code=[[CODE2]]
# |            ^
# | <stdin>:30:78: note: scanning from here
# |  Callback DataOp EMI: endpoint=ompt_scope_begin optype=ompt_target_data_alloc target_task_data=0x653fafb73c18 (0x0) target_da
# |                                                                              ^
# | <stdin>:30:78: note: with "CODE2" equal to "0x653f7c8cae08"
# |  Callback DataOp EMI: endpoint=ompt_scope_begin optype=ompt_target_data_alloc target_task_data=0x653fafb73c18 (0x0) target_da
# |                                                                              ^
# | <stdin>:30:80: note: possible intended match here
# |  Callback DataOp EMI: endpoint=ompt_scope_begin optype=ompt_target_data_alloc target_task_data=0x653fafb73c18 (0x0) target_da
# |                                                                                ^
# | 
# | Input file: <stdin>
# | Check file: /home/botworker/builds/openmp-offload-amdgpu-clang-flang/llvm.src/offload/test/ompt/veccopy_emi.c
# | 
# | -dump-input=help explains the following input dump.
Step 9 (Add check check-offload) failure: Add check check-offload (failure)
...
UNSUPPORTED: libomptarget :: x86_64-unknown-linux-gnu :: api/omp_indirect_func_struct.c (832 of 1384)
PASS: libomptarget :: amdgcn-amd-amdhsa :: ompt/veccopy_no_device_init.c (833 of 1384)
PASS: libomptarget :: amdgcn-amd-amdhsa :: ompt/veccopy.c (834 of 1384)
PASS: libomptarget :: amdgcn-amd-amdhsa :: offloading/weak.c (835 of 1384)
PASS: libomptarget :: amdgcn-amd-amdhsa :: offloading/malloc.c (836 of 1384)
PASS: libomptarget :: amdgcn-amd-amdhsa :: ompt/veccopy_map.c (837 of 1384)
UNSUPPORTED: libomptarget :: x86_64-unknown-linux-gnu :: api/omp_virtual_func.cpp (838 of 1384)
UNSUPPORTED: libomptarget :: x86_64-unknown-linux-gnu :: api/omp_virtual_func_multiple_inheritance_01.cpp (839 of 1384)
UNSUPPORTED: libomptarget :: x86_64-unknown-linux-gnu :: api/omp_virtual_func_multiple_inheritance_02.cpp (840 of 1384)
UNSUPPORTED: libomptarget :: x86_64-unknown-linux-gnu :: api/omp_virtual_func_reference.cpp (841 of 1384)
FAIL: libomptarget :: amdgcn-amd-amdhsa :: ompt/veccopy_emi.c (842 of 1384)
******************** TEST 'libomptarget :: amdgcn-amd-amdhsa :: ompt/veccopy_emi.c' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 2
/home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./bin/clang -fopenmp    -I /home/botworker/builds/openmp-offload-amdgpu-clang-flang/llvm.src/offload/test -I /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -L /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib/x86_64-unknown-linux-gnu -L /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib/x86_64-unknown-linux-gnu -L /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib -L /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/openmp/runtime/src  -Wl,-rpath,/home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib/x86_64-unknown-linux-gnu -Wl,-rpath,/home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -Wl,-rpath,/home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib/x86_64-unknown-linux-gnu -Wl,-rpath,/home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib  -fopenmp-targets=amdgcn-amd-amdhsa /home/botworker/builds/openmp-offload-amdgpu-clang-flang/llvm.src/offload/test/ompt/veccopy_emi.c -o /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/offload/test/amdgcn-amd-amdhsa/ompt/Output/veccopy_emi.c.tmp -Xoffload-linker -lompdevice && /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/offload/test/amdgcn-amd-amdhsa/ompt/Output/veccopy_emi.c.tmp | /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./bin/FileCheck /home/botworker/builds/openmp-offload-amdgpu-clang-flang/llvm.src/offload/test/ompt/veccopy_emi.c
# executed command: /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./bin/clang -fopenmp -I /home/botworker/builds/openmp-offload-amdgpu-clang-flang/llvm.src/offload/test -I /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -L /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib/x86_64-unknown-linux-gnu -L /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib/x86_64-unknown-linux-gnu -L /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib -L /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -Wl,-rpath,/home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib/x86_64-unknown-linux-gnu -Wl,-rpath,/home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/openmp/runtime/src -Wl,-rpath,/home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib/x86_64-unknown-linux-gnu -Wl,-rpath,/home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./lib -fopenmp-targets=amdgcn-amd-amdhsa /home/botworker/builds/openmp-offload-amdgpu-clang-flang/llvm.src/offload/test/ompt/veccopy_emi.c -o /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/offload/test/amdgcn-amd-amdhsa/ompt/Output/veccopy_emi.c.tmp -Xoffload-linker -lompdevice
# note: command had no output on stdout or stderr
# executed command: /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/runtimes/runtimes-bins/offload/test/amdgcn-amd-amdhsa/ompt/Output/veccopy_emi.c.tmp
# .---command stderr------------
# | Display last 2 kernels launched:
# | Kernel 0: 'omp target in main @ 38 (__omp_offloading_fc00_2866394_main_l38)'
# | Kernel 1: 'omp target in main @ 32 (__omp_offloading_fc00_2866394_main_l32)'
# | Use 'OFFLOAD_TRACK_NUM_KERNEL_LAUNCH_TRACES=<num>' to adjust the number of shown stack traces (0 now, up to 8)
# | OFFLOAD ERROR: memory access fault by GPU 2 (agent 0x653fafbc3530) at virtual address 0x787114207000. Reasons: Unknown (0)
# | Use 'OFFLOAD_TRACK_ALLOCATION_TRACES=true' to track device allocations
# `-----------------------------
# error: command failed with exit status: -6
# executed command: /home/botworker/builds/openmp-offload-amdgpu-clang-flang/build/llvm.build/./bin/FileCheck /home/botworker/builds/openmp-offload-amdgpu-clang-flang/llvm.src/offload/test/ompt/veccopy_emi.c
# .---command stderr------------
# | /home/botworker/builds/openmp-offload-amdgpu-clang-flang/llvm.src/offload/test/ompt/veccopy_emi.c:115:12: error: CHECK: expected string not found in input
# | /// CHECK: code=[[CODE2]]
# |            ^
# | <stdin>:30:78: note: scanning from here
# |  Callback DataOp EMI: endpoint=ompt_scope_begin optype=ompt_target_data_alloc target_task_data=0x653fafb73c18 (0x0) target_da
# |                                                                              ^
# | <stdin>:30:78: note: with "CODE2" equal to "0x653f7c8cae08"
# |  Callback DataOp EMI: endpoint=ompt_scope_begin optype=ompt_target_data_alloc target_task_data=0x653fafb73c18 (0x0) target_da
# |                                                                              ^
# | <stdin>:30:80: note: possible intended match here
# |  Callback DataOp EMI: endpoint=ompt_scope_begin optype=ompt_target_data_alloc target_task_data=0x653fafb73c18 (0x0) target_da
# |                                                                                ^
# | 
# | Input file: <stdin>
# | Check file: /home/botworker/builds/openmp-offload-amdgpu-clang-flang/llvm.src/offload/test/ompt/veccopy_emi.c
# | 
# | -dump-input=help explains the following input dump.

```

</details>

https://github.com/llvm/llvm-project/pull/202579