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authorAlejandro Piñeiro <apinheiro@igalia.com>2015-10-09 16:59:20 +0200
committerAlejandro Piñeiro <apinheiro@igalia.com>2015-10-22 21:58:03 +0200
commit8ac3b525c77cb5aae9e61bd984b78f6cbbffdc1c (patch)
tree6bbbd7047c8b9aa8161110fac750ad23d5161beb /src
parent1095d837dc5744b65d4e65ee551046d5d884f607 (diff)
i965/vec4: nir_emit_if doesn't need to predicate based on all the channels
v2: changed comment, as suggested by Matt Turner Reviewed-by: Matt Turner <mattst88@gmail.com> Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
Diffstat (limited to 'src')
-rw-r--r--src/mesa/drivers/dri/i965/brw_vec4_nir.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
index ea1e3e7bbcf..0f04f65eeaf 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
@@ -193,7 +193,9 @@ vec4_visitor::nir_emit_if(nir_if *if_stmt)
vec4_instruction *inst = emit(MOV(dst_null_d(), condition));
inst->conditional_mod = BRW_CONDITIONAL_NZ;
- emit(IF(BRW_PREDICATE_NORMAL));
+ /* We can just predicate based on the X channel, as the condition only
+ * goes on its own line */
+ emit(IF(BRW_PREDICATE_ALIGN16_REPLICATE_X));
nir_emit_cf_list(&if_stmt->then_list);