[Mesa-dev] [PATCH 6/8] nir: Make glsl_to_nir compact scalar TessLevel arrays.

[Kenneth Graunke]

Signed-off-by: Kenneth Graunke <kenn...@whitecape.org>
---
 src/compiler/glsl/glsl_to_nir.cpp | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/compiler/glsl/glsl_to_nir.cpp 
b/src/compiler/glsl/glsl_to_nir.cpp
index 4e0a33a9e74..8b1aec1b3b4 100644
--- a/src/compiler/glsl/glsl_to_nir.cpp
+++ b/src/compiler/glsl/glsl_to_nir.cpp
@@ -287,6 +287,7 @@ nir_visitor::visit(ir_variable *ir)
    var->data.patch = ir->data.patch;
    var->data.invariant = ir->data.invariant;
    var->data.location = ir->data.location;
+   var->data.compact = false;
 
    switch(ir->data.mode) {
    case ir_var_auto:
@@ -317,11 +318,22 @@ nir_visitor::visit(ir_variable *ir)
          var->data.mode = nir_var_system_value;
       } else {
          var->data.mode = nir_var_shader_in;
+
+         if (shader->stage == MESA_SHADER_TESS_EVAL &&
+             (ir->data.location == VARYING_SLOT_TESS_LEVEL_INNER ||
+              ir->data.location == VARYING_SLOT_TESS_LEVEL_OUTER)) {
+            var->data.compact = ir->type->without_array()->is_scalar();
+         }
       }
       break;
 
    case ir_var_shader_out:
       var->data.mode = nir_var_shader_out;
+      if (shader->stage == MESA_SHADER_TESS_CTRL &&
+          (ir->data.location == VARYING_SLOT_TESS_LEVEL_INNER ||
+           ir->data.location == VARYING_SLOT_TESS_LEVEL_OUTER)) {
+         var->data.compact = ir->type->without_array()->is_scalar();
+      }
       break;
 
    case ir_var_uniform:
@@ -343,7 +355,6 @@ nir_visitor::visit(ir_variable *ir)
    var->data.interpolation = ir->data.interpolation;
    var->data.origin_upper_left = ir->data.origin_upper_left;
    var->data.pixel_center_integer = ir->data.pixel_center_integer;
-   var->data.compact = false;
    var->data.location_frac = ir->data.location_frac;
 
    switch (ir->data.depth_layout) {
-- 
2.11.0

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