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nir/deref: remove rematerialize_deref_in_block cache

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Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Konstantin Seurer <konstantin.seurer@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23712>
This commit is contained in:
Rhys Perry 2023-06-23 15:39:32 +01:00 • committed by Marge Bot
parent ab1310e84d
commit ba809dccb8
1 changed files with 0 additions and 15 deletions
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15
src/compiler/nir/nir_deref.c
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@ -744,7 +744,6 @@ struct rematerialize_deref_state {
bool progress;
nir_builder builder;
nir_block *block;
struct hash_table *cache;
};
static nir_deref_instr *
@ -754,14 +753,6 @@ rematerialize_deref_in_block(nir_deref_instr *deref,
if (deref->instr.block == state->block)
return deref;
if (!state->cache) {
state->cache = _mesa_pointer_hash_table_create(NULL);
}
struct hash_entry *cached = _mesa_hash_table_search(state->cache, deref);
if (cached)
return cached->data;
nir_builder *b = &state->builder;
nir_deref_instr *new_deref =
nir_deref_instr_create(b->shader, deref->deref_type);
@ -850,10 +841,6 @@ nir_rematerialize_derefs_in_use_blocks_impl(nir_function_impl *impl)
nir_foreach_block_unstructured(block, impl) {
state.block = block;
/* Start each block with a fresh cache */
if (state.cache)
_mesa_hash_table_clear(state.cache, NULL);
nir_foreach_instr_safe(instr, block) {
if (instr->type == nir_instr_type_deref &&
nir_deref_instr_remove_if_unused(nir_instr_as_deref(instr)))
@ -876,8 +863,6 @@ nir_rematerialize_derefs_in_use_blocks_impl(nir_function_impl *impl)
#endif
}
_mesa_hash_table_destroy(state.cache, NULL);
return state.progress;
}