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atomic_add is not found on Vortex GPU #2

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AndreAhmed opened this issue Sep 18, 2022 · 0 comments
Open

atomic_add is not found on Vortex GPU #2

AndreAhmed opened this issue Sep 18, 2022 · 0 comments

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@AndreAhmed
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Hello,
I'm having a kernel that has atomic_add and It can't find it

[2022-08-02 10:27:08.178407820]POCL: in fn void appendToProgramBuildLog(cl_program, unsigned int, std::__cxx11::string&) at line 141:
  |     ERROR |  Error(s) while linking: 
Cannot find symbol _Z10atomic_addPU8CLglobalVjj in kernel library
Cannot find symbol _Z10atomic_incPU8CLglobalVj in kernel library
Cannot find symbol _Z10atomic_minPU8CLglobalVii in kernel library
[2022-08-02 10:27:08.182772764]POCL: in fn compile_and_link_program at line 641:
  |     ERROR | build_error_code pocl_llvm_build_program() failed
shin0403 pushed a commit that referenced this issue Aug 28, 2023
@anbe42
add testcase for llvm segfault (issue #889)
263323d 
The segmentation fault can be observed with llvm-10, llvm-11 and llvm-12
and seems to be fixed in llvm-13. It happens on the architectures armhf
and armel (both 32-bit) always and on x86_64 sporadically.
The test segfaults only on the first run (i.e. the kernel is not yet in
pocl's kernel cache) while it passes on subsequent execution (with
something already in the kernel cache), emitting only some llvm
diagnostics:

inlinable function call in a function with debug info must have a !dbg location
  %11 = call i32 @_Z12get_local_idj(i32 0)
inlinable function call in a function with debug info must have a !dbg location
  %19 = call i32 @_Z12get_local_idj(i32 1)
inlinable function call in a function with debug info must have a !dbg location
  %27 = call i32 @_Z12get_local_idj(i32 2)

The backtrace of the segmentation fault as observed with llvm-10 and pocl 1.6:
 #0  getEmissionKind () at .../llvm/include/llvm/IR/DebugInfoMetadata.h:1244
 #1  initialize () at .../llvm/lib/CodeGen/LexicalScopes.cpp:53
 #2  0xb14102f0 in computeIntervals () at .../llvm/lib/CodeGen/LiveDebugVariables.cpp:979
 #3  runOnMachineFunction () at .../llvm/lib/CodeGen/LiveDebugVariables.cpp:996
 #4  runOnMachineFunction () at .../llvm/lib/CodeGen/LiveDebugVariables.cpp:1023
 #5  0xb14856c8 in runOnFunction () at .../llvm/lib/CodeGen/MachineFunctionPass.cpp:73
 #6  0xb12ff494 in runOnFunction () at .../llvm/lib/IR/LegacyPassManager.cpp:1481
 #7  0xb12ff750 in runOnModule () at .../llvm/lib/IR/LegacyPassManager.cpp:1517
 #8  0xb12ffba8 in runOnModule () at .../llvm/lib/IR/LegacyPassManager.cpp:1582
 #9  run () at .../llvm/lib/IR/LegacyPassManager.cpp:1694
 #10 0xb6e64c82 in pocl_llvm_codegen (Device=Device@entry=0xdb0010, Modp=0x1361838, Output=Output@entry=0xbefde86c, OutputSize=OutputSize@entry=0xbefde880) at ./lib/CL/pocl_llvm_wg.cc:624
 #11 0xb6e291de in llvm_codegen (output=output@entry=0xdeb898 "...BMDHA/Sdot_kernel/0-0-0/Sdot_kernel.so", device_i=device_i@entry=0, kernel=kernel@entry=0xbefe0240,
     device=0xdb0010, command=command@entry=0xbefe0278, specialize=specialize@entry=0) at ./lib/CL/devices/common.c:158
 #12 0xb6e2ae44 in pocl_check_kernel_disk_cache (command=command@entry=0xbefe0278, specialized=specialized@entry=0) at ./lib/CL/devices/common.c:958
 #13 0xb6e2b262 in pocl_check_kernel_dlhandle_cache (command=0xbefe0278, initial_refcount=0, specialize=0) at ./lib/CL/devices/common.c:1081
 #14 0xb6e033d4 in program_compile_dynamic_wg_binaries (program=program@entry=0xd8ab88) at ./lib/CL/pocl_build.c:179
 #15 0xb6e13f20 in get_binary_sizes (sizes=0xbefe0384, program=0xd8ab88) at ./lib/CL/clGetProgramInfo.c:36
 #16 POclGetProgramInfo (program=0xd8ab88, param_name=4453, param_value_size=128, param_value=0xbefe0384, param_value_size_ret=0xbefe0380) at ./lib/CL/clGetProgramInfo.c:115
 #17 0x00473070 in main () at 975931.c:238

pocl/pocl#889
https://bugs.debian.org/975931
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@AndreAhmed