FPGA report fails for matrix transpose

Hi everyone,

the FPGA report fails for a simple kernel for the matrix transpose operation. The output asks me to

PLEASE submit a bug report to https://software.intel.com/en-us/support/priority-support and include the crash backtrace.

But the web page does not work well for me. Thus, I attach the error messages and source code here.

• The source code: attached.
• The optimization report:

icpx -fsycl -fintelfpga -DFPGA_HARDWARE -std=c++2b -Wall -Wextra -Wpedantic -Werror -O3 mattrans.cpp -Xshardware -fsycl-link=early -Xsv -Xsparallel=16 -Xsffp-reassociate -Xsffp-contract=fast -o mattrans.a

• The error messages:

Dependency files for SYCL source and SYCL-source library: /dev/shm/icpx-32a212/mattrans-1ee627.d
aoc: Environment checks completed successfully.
aoc: Selected target board package /opt/software/FPGA/IntelFPGA/opencl_sdk/20.4.0/hld/board/bittware_pcie/s10_hpc_default
aoc: Selected target board p520_hpc_sg280l
aoc: Processing SPIR-V....
aoc: SPIR-V processing completed
aoc: Linking Object files....
Device information not found: 1SG280LU3F50E1VGS1
aoc: Optimizing and doing static analysis of code...
PLEASE submit a bug report to https://software.intel.com/en-us/support/priority-support and include the crash backtrace.
Stack dump:
0.      Program arguments: /opt/software/FPGA/IntelFPGA/oneapi/23.1.0/compiler/2023.1.0/linux/lib/oclfpga/llvm/aocl-bin/aocl-opt -march=fpga -O3 -ipatemplate /opt/software/FPGA/IntelFPGA/opencl_sdk/20.4.0/hld/board/bittware_pcie/s10_hpc_default/hardware/p520_hpc_sg280l/board_spec.xml -board /opt/software/FPGA/IntelFPGA/opencl_sdk/20.4.0/hld/board/bittware_pcie/s10_hpc_default/hardware/p520_hpc_sg280l/board_spec.xml -vpfp-relaxed -sycl -dbg-info-enabled --soft-elementary-math=false -pass-remarks-output=pass-remarks.yaml mattrans.1.bc -o mattrans.kwgid.bc
1.      Running pass 'Function Pass Manager' on module 'mattrans.1.bc'.
2.      Running pass 'Mark the decision for loop pipelining' on function '@ZTS15mattrans_kernel'
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
/opt/software/FPGA/IntelFPGA/oneapi/23.1.0/compiler/2023.1.0/linux/lib/oclfpga/llvm/aocl-bin/aocl-opt(+0x29c600f)[0x55f1186f700f]
/opt/software/FPGA/IntelFPGA/oneapi/23.1.0/compiler/2023.1.0/linux/lib/oclfpga/llvm/aocl-bin/aocl-opt(+0x29c2f1d)[0x55f1186f3f1d]
/lib64/libpthread.so.0(+0x12ce0)[0x1517e8435ce0]
/opt/software/FPGA/IntelFPGA/oneapi/23.1.0/compiler/2023.1.0/linux/lib/oclfpga/llvm/aocl-bin/aocl-opt(_ZN3acl6MemDep25BasicMemoryDependenceInfo24distinctTermsInLoopNestsEPN4llvm4LoopERNS_16VariableGEPIndexES4_S6_+0x436)[0x55f1193b00f6]
/opt/software/FPGA/IntelFPGA/oneapi/23.1.0/compiler/2023.1.0/linux/lib/oclfpga/llvm/aocl-bin/aocl-opt(_ZN3acl6MemDep25BasicMemoryDependenceInfo38distinctTermsInDifferentLoopIterationsEPN4llvm11InstructionElRKSt6vectorINS_16VariableGEPIndexESaIS6_EEmS4_lSA_mPNS2_4LoopE+0x1952)[0x55f1193b25f2]
/opt/software/FPGA/IntelFPGA/oneapi/23.1.0/compiler/2023.1.0/linux/lib/oclfpga/llvm/aocl-bin/aocl-opt(_ZN3acl6MemDep25BasicMemoryDependenceInfo38distinctTermsInDifferentLoopIterationsEPN4llvm11InstructionERKNS_24AddressDecompositionInfoES4_S7_+0xb6)[0x55f1193b3486]
/opt/software/FPGA/IntelFPGA/oneapi/23.1.0/compiler/2023.1.0/linux/lib/oclfpga/llvm/aocl-bin/aocl-opt(_ZN3acl6MemDep25BasicMemoryDependenceInfo21analyzeDecompositionsEPN4llvm11InstructionES4_bb+0xe4c)[0x55f1193b6a8c]
/opt/software/FPGA/IntelFPGA/oneapi/23.1.0/compiler/2023.1.0/linux/lib/oclfpga/llvm/aocl-bin/aocl-opt(_ZN3acl6MemDep31LoopCarriedMemoryDependenceInfo13getDependenceEPN4llvm11InstructionES4_b+0xc0c)[0x55f1193bc03c]
/opt/software/FPGA/IntelFPGA/oneapi/23.1.0/compiler/2023.1.0/linux/lib/oclfpga/llvm/aocl-bin/aocl-opt(_ZN3acl6MemDep31LoopCarriedMemoryDependenceInfo13getDependentsEPN4llvm11InstructionERNS2_11SmallPtrSetIS4_Lj2EEEb+0x2de)[0x55f1193be96e]
/opt/software/FPGA/IntelFPGA/oneapi/23.1.0/compiler/2023.1.0/linux/lib/oclfpga/llvm/aocl-bin/aocl-opt(_ZN3acl33LoopCarriedDepsBeforePipelineInfo12process_loopEPKN4llvm4LoopE+0x54d)[0x55f119527e0d]
/opt/software/FPGA/IntelFPGA/oneapi/23.1.0/compiler/2023.1.0/linux/lib/oclfpga/llvm/aocl-bin/aocl-opt(_ZN3acl16LoopPipelineInfo19check_serial_regionEPKN4llvm4LoopE+0x64)[0x55f11951da74]
/opt/software/FPGA/IntelFPGA/oneapi/23.1.0/compiler/2023.1.0/linux/lib/oclfpga/llvm/aocl-bin/aocl-opt(_ZN3acl16LoopPipelineInfo19runPipelineAnalysisEPNS_13ArrayPrivInfoEPNS_33LoopCarriedDepsBeforePipelineInfoEPNS_14LocalMemConfigEPNS_20RestrictInterleavingE+0xc3)[0x55f119521953]
/opt/software/FPGA/IntelFPGA/oneapi/23.1.0/compiler/2023.1.0/linux/lib/oclfpga/llvm/aocl-bin/aocl-opt(_ZN20MarkPipelineDecision3runEv+0x4c)[0x55f119a7100c]
/opt/software/FPGA/IntelFPGA/oneapi/23.1.0/compiler/2023.1.0/linux/lib/oclfpga/llvm/aocl-bin/aocl-opt(_ZN30MarkPipelineDecisionLegacyPass13runOnFunctionERN4llvm8FunctionE+0x3cd)[0x55f119a718cd]
/opt/software/FPGA/IntelFPGA/oneapi/23.1.0/compiler/2023.1.0/linux/lib/oclfpga/llvm/aocl-bin/aocl-opt(_ZN4llvm13FPPassManager13runOnFunctionERNS_8FunctionE+0x3eb)[0x55f117ca1f8b]
/opt/software/FPGA/IntelFPGA/oneapi/23.1.0/compiler/2023.1.0/linux/lib/oclfpga/llvm/aocl-bin/aocl-opt(_ZN4llvm13FPPassManager11runOnModuleERNS_6ModuleE+0x39)[0x55f117ca2199]
/opt/software/FPGA/IntelFPGA/oneapi/23.1.0/compiler/2023.1.0/linux/lib/oclfpga/llvm/aocl-bin/aocl-opt(_ZN4llvm6legacy15PassManagerImpl3runERNS_6ModuleE+0x2fb)[0x55f117ca2aeb]
/opt/software/FPGA/IntelFPGA/oneapi/23.1.0/compiler/2023.1.0/linux/lib/oclfpga/llvm/aocl-bin/aocl-opt(main+0x20d4)[0x55f116bb3d44]
/lib64/libc.so.6(__libc_start_main+0xf3)[0x1517e4337cf3]
/opt/software/FPGA/IntelFPGA/oneapi/23.1.0/compiler/2023.1.0/linux/lib/oclfpga/llvm/aocl-bin/aocl-opt(_start+0x29)[0x55f116cde119]
Error: Optimizer FAILED.
Refer to /dev/shm/mattrans-96129e-fe9b4d/mattrans.log for details.

Many thanks

Xin