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radv: don't assert on empty hash table 

Currently if table_size is 0, it's falling through to:

unreachable("hash table should never be full");

But table_size can be 0 when RADV_DEBUG=nocache is set, or when the
table allocation fails (which is not considered an error).

Fixes: f4e499ec79 "radv: add initial non-conformant radv vulkan driver"
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Grazvydas Ignotas 2017-08-28 00:29:36 +03:00
parent 5610911fed
commit b8dd69e1b4
1 changed files with 3 additions and 0 deletions
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3
src/amd/vulkan/radv_pipeline_cache.c
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@ -118,6 +118,9 @@ radv_pipeline_cache_search_unlocked(struct radv_pipeline_cache *cache,
const uint32_t mask = cache->table_size - 1;
const uint32_t start = (*(uint32_t *) sha1);
if (cache->table_size == 0)
return NULL;
for (uint32_t i = 0; i < cache->table_size; i++) {
const uint32_t index = (start + i) & mask;
struct cache_entry *entry = cache->hash_table[index];