InvalidBitWidth: Invalid bit width in input: 56

[pvelesko]

Run into this error when in CMake Debug configuration. In Release configuration, fewer files fail, the ones that do fail, fail with 24 not 56.

Attached are the sources files

llvm-spirv --version                                                                                                                                                                                                                                     130 ↵
LLVM (http://llvm.org/):
  LLVM version 19.1.0
  Optimized build with assertions.

llvm-spirv --spirv-max-version=1.2 --spirv-ext=-all,+SPV_INTEL_function_pointers,+SPV_INTEL_subgroups test_device_partition-hip-spirv64-generic-lower.bc -o test_device_partition-hip-spirv64-generic.out

InvalidBitWidth: Invalid bit width in input: 56

spirvError.zip
spirvFail2.zip

[MrSidims]

These types are not supported in SPIR-V, it has support for 8-bit, 16-bit, 32-bit and 64-bit integers and the translator doesn't have lowering of unsupported types in SPIR-V to another supported type (and there are no plans to add this support). I suggest to investigate which optimization is responsible for the types creation and disable it or alternatively (if you really want to use these types) enable SPV_INTEL_arbitrary_precision_integers extension. It was develop exclusively for BitInt C23 feature for FPGA, so it might be not the best idea to use it, unless you really know, what you are doing :)