Fix ds_permute types and add tests

[stuartarchibald]

This fixes the ds_{,b}permute intrinsic typing so that only
32bit types can be used in the source, whereas the index lane
can be int32 or int64. Tests are added.

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@48ea366). Click here to learn what that means.
The diff coverage is 0%.

@@            Coverage Diff            @@
##             master    #3281   +/-   ##
=========================================
  Coverage          ?   81.01%           
=========================================
  Files             ?      387           
  Lines             ?    76403           
  Branches          ?     8590           
=========================================
  Hits              ?    61900           
  Misses            ?    13185           
  Partials          ?     1318

[seibert]

Looks good. Trying on buildfarm.

[seibert]

Seems to be failing on ROCm worker due to missing type signatures. Example:

ERROR: test_shuf_device_inclusive_scan (numba.roc.tests.hsapy.test_scan.TestShuffleScan)
----------------------------------------------------------------------
[snip]
    TypingError: Failed in nopython mode pipeline (step: nopython frontend)
Invalid use of Function(<function ds_permute at 0x7fa696933730>) with argument(s) of type(s): (int64, int64)
Known signatures:
 * (int32, int32) -> int32
 * (int64, int32) -> int32
 * (int32, float32) -> float32
 * (int64, float32) -> float32
[snip]

Looks like tests are expecting ds_permute with (int64, int64) and (int64, uint32) signatures.

[stuartarchibald]

Thanks for pushing it through the build farm. I think the former signature is invalid as that would be a 64bit src, however the latter should be ok, I'll add that.

[stuartarchibald]

Root cause was that scan testing was written for intp moving this to int32 fixes.

[stuartarchibald]

This needs #3294 before testing else the compiler will fail on lock assertions.