From c0079e09cafaf7ddb80c804b84d64fe903e8104e Mon Sep 17 00:00:00 2001
From: Rhys Perry <pendingchaos02@gmail.com>
Date: Tue, 3 Mar 2026 13:44:01 +0000
Subject: [PATCH] nir/range_analysis: set deleted key

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>
---
 src/compiler/nir/nir_range_analysis.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/compiler/nir/nir_range_analysis.c b/src/compiler/nir/nir_range_analysis.c
index 5aa22d211fd..9ba788eccc0 100644
--- a/src/compiler/nir/nir_range_analysis.c
+++ b/src/compiler/nir/nir_range_analysis.c
@@ -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);
 }