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-rw-r--r--src/intel/compiler/brw_vec4.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/intel/compiler/brw_vec4.cpp b/src/intel/compiler/brw_vec4.cpp
index 218925ccb1..9459d61af6 100644
--- a/src/intel/compiler/brw_vec4.cpp
+++ b/src/intel/compiler/brw_vec4.cpp
@@ -2837,6 +2837,10 @@ brw_compile_vs(const struct brw_compiler *compiler, void *log_data,
prog_data->uses_basevertex = true;
if (shader->info.system_values_read &
+ BITFIELD64_BIT(SYSTEM_VALUE_FIRST_VERTEX))
+ prog_data->uses_firstvertex = true;
+
+ if (shader->info.system_values_read &
BITFIELD64_BIT(SYSTEM_VALUE_BASE_INSTANCE))
prog_data->uses_baseinstance = true;