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nir/range_analysis: set deleted key

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If (uintptr_t)&deleted_key is small enough, inserting entries into the
hash table might not work correctly.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Backport-to: 26.0
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40190>
This commit is contained in:
Rhys Perry 2026-03-03 13:44:01 +00:00 • committed by Marge Bot
parent f00cde96b7
commit c0079e09ca
1 changed files with 2 additions and 0 deletions
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2
src/compiler/nir/nir_range_analysis.c
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@ -2033,6 +2033,7 @@ nir_unsigned_upper_bound(nir_shader *shader, struct hash_table *range_ht,
push_scalar_query(&state, scalar);
_mesa_hash_table_set_deleted_key(range_ht, (void *)(uintptr_t)UINT32_MAX);
return perform_analysis(&state);
}
@ -2424,5 +2425,6 @@ nir_def_num_lsb_zero(struct hash_table *numlsb_ht, nir_scalar def)
push_scalar_query(&state, def);
_mesa_hash_table_set_deleted_key(numlsb_ht, (void *)(uintptr_t)UINT32_MAX);
return perform_analysis(&state);
}