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authorIan Romanick <[email protected]>2020-04-27 12:11:17 -0700
committerMarge Bot <[email protected]>2020-04-28 20:33:56 +0000
commit7b869710a1c29b535aceda74220594f12dc3beb0 (patch)
tree4b6b4528699058260713f85ae77e6c1ca10b49d4 /src/amd
parent656051d735c949021e7eb206b6c4a633cc76936f (diff)
nir/algebraic: Require operands to iand be 32-bit
With the mask value 0x80000000, the other operand must be 32-bit. This fixes failures in dEQP-VK.subgroups.ballot_mask.ext_shader_subgroup_ballot.*.gl_subgroupgemaskarb_* tests from Vulkan 1.2.2 CTS. Checking one of the tests, it appears that the tests are doing 64-bit iand with 0x0000000080000000, then comparing the result with zero. Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/2834 Fixes: 88eb8f190bd ("nir/algebraic: Simplify logic to detect sign of an integer") Reviewed-by: Eric Anholt <[email protected]> Reviewed-by: Alyssa Rosenzweig <[email protected]> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4770>
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