Minutes_2018_11_20

Numba Meeting: 2018-11-20

Attendees: Siu, Todd, Ehsan, Stuart

Release status
- #3507 - Numba 0.41 RC checklist
- Build problems
  - windows np1.11 and py3.6, segfault in windows C compiler
    - skip
  - power 8 test failure for power function, i32 overflow
    - skip
  - x86 segfault on concurrent testing, tbb? or mix 32 & 64 bit libraries
    - need to see why
Literal refactor impact?
- #3510 - Automatic Literal typing without automatic casting in lowerer
ir.Const weirdness (i.e. https://github.com/numba/numba/pull/3414/files#diff-96daeb40163e6c7022781d1a39daa2ebR3138)

#3515 - array comprehension expects iterator to be range like
- guard against non range loop
#3510 - Automatic Literal typing without automatic casting in lowerer
- discussed above
#3508 - Delayed CUDA deallocation breaks pinned/mapped context managers
- need to fix
#3503 - Infer numpy dtypes as numba.types.scalars.xxxx
- missing typeof, unbox
- dtype vs dtype.type
#3501 - Caching fails for function created by exec
- could make it work like Ipython caching logic
- hash code object
#3500 - RewriteArrayOfConsts generating invalid IR
- bug
#3499 - Error in np.sqrt for large negative values
#3494 - Review usage of use_literal_type and ir.Const
#3492 - in lowering, cast is not handling refct

#3514 - Add missing unicode != unicode
- Should be reviewed during RC period
#3509 - Support for np.corrcoef
- Ready for review
#3505 - Permit non intp typed ints as args in np.* allocators.
- Stuart will update this, put in allocation overflow check near location of NRT call

#3468 - Add support for np.clip and ndarray.clip.
- depends on fix on @overload_method for kwargs
3437 - Changes to accommodate LLVM 7.0.x
3450 - [WIP] generated_jit for CUDA kernels
3392 - Launch and attach gdb directly from Numba.
- needs work
3390 - typeinfer: use unknown_loc object instead of string literal
3162 - Support constant dtype string in nopython mode in functions like numpy.empty.
- Need to resolve #3195
3160 - First attempt at parallel diagnostics
- Stuart will implement Todd's suggestion
3134 - [WIP] Cfunc x86 abi
- Needs re-review
3046 - Pairwise sum implementation.
#2999 - Support LowLevelCallable
#2942 - Fix linkage nature (declspec(dllexport)) of some test functions
#2894: [WIP] Implement jitclass default constructor arguments.
#2817: [WIP] Emit LLVM optimization remarks

Merged old PRs

===========================