From: Jason Ekstrand Date: Thu, 13 Dec 2018 22:30:24 +0000 (-0600) Subject: nir/dead_write_vars: Get modes directly from derefs X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5dad1abfdcfc772c63e7c883ab34ae1ad39461f3;p=mesa.git nir/dead_write_vars: Get modes directly from derefs Instead of going all the way back to the variable, just look at the deref. The modes are guaranteed to be the same by nir_validate whenever the variable can be found. This fixes clear_unused_for_modes for derefs that don't have an accessible variable. Reviewed-by: Timothy Arceri --- diff --git a/src/compiler/nir/nir_opt_dead_write_vars.c b/src/compiler/nir/nir_opt_dead_write_vars.c index dd949998cc8..75814738d84 100644 --- a/src/compiler/nir/nir_opt_dead_write_vars.c +++ b/src/compiler/nir/nir_opt_dead_write_vars.c @@ -56,8 +56,7 @@ static void clear_unused_for_modes(struct util_dynarray *unused_writes, nir_variable_mode modes) { util_dynarray_foreach_reverse(unused_writes, struct write_entry, entry) { - nir_variable *var = nir_deref_instr_get_variable(entry->dst); - if (var->data.mode & modes) + if (entry->dst->mode & modes) *entry = util_dynarray_pop(unused_writes, struct write_entry); } }