[maleadt]

Local arrays of Union{Int64,NTuple{3,Int32}} need a 16-byte element stride, but SPIRVIntrinsics 1.5.0 allocates only 12 bytes per element. Require 1.5.1, which fixes the allocation, now that oneAPI's union arrays use the aligned stride.

The regression test exchanges elements between work-items through local memory and checks that four elements reserve 68 bytes, including their selector bytes. The allocation check fails with 1.5.0 (52 bytes), even though the kernel's result happens to pass on the tested driver.

Tested on an Arc A770: all 254 tests in test/unions.jl pass on Julia 1.10.12 and 1.13.2 with SPIRVIntrinsics 1.5.1.

Fixes #737.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.37%. Comparing base (d90fdd8) to head (83f597f).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #740      +/-   ##
==========================================
- Coverage   86.84%   86.37%   -0.47%     
==========================================
  Files          56       55       -1     
  Lines        5123     4984     -139     
==========================================
- Hits         4449     4305     -144     
- Misses        674      679       +5     

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