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YaFan TaoandYaFan 7401694a38 [AMDGPU] Add threshold for DPP atomic optimizer on LDS atomics (#186762)
Add amdgpu.expected.active.lane metadata which can be applied to operations by a 
compiler front-end.  Do not apply the DPP atomic optimizer to LDS atomics where
less than five active lanes are expected.
This is an empirically derived threshold based on GFX11 and GFX12 testing.

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Co-authored-by: YaFan <YaFan.Tao@amd.com>
2026-07-14 17:41:27 +09:00
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This directory contains testcases that the verifier is supposed to detect as
malformed LLVM code.  Testcases for situations that the verifier incorrectly
identifies as malformed should go in the test/Assembler directory.