panfrost/midgard: Enable lower_find_lsb

This is exactly what the blob does.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>

diff --git a/src/gallium/drivers/panfrost/midgard/midgard_compile.h b/src/gallium/drivers/panfrost/midgard/midgard_compile.h
index ffc1b1f70e631569c3ce5c5797a4b3dbc8a071a5..4bc5d475b5a635f7fb90a2ad508410a2b3b7d571 100644 (file)
--- a/src/gallium/drivers/panfrost/midgard/midgard_compile.h
+++ b/src/gallium/drivers/panfrost/midgard/midgard_compile.h
@@ -97,6 +97,7 @@ static const nir_shader_compiler_options midgard_nir_options = {
         .lower_idiv = true,
         .lower_isign = true,
         .lower_fpow = true,
+        .lower_find_lsb = true,
 
         .vertex_id_zero_based = true,
         .lower_extract_byte = true,