glsl: remove unused helper

Seems to have become unused when i965 moved to NIR.

Reviewed-by: Iago Toral Quiroga <[email protected]>

2 files changed, 0 insertions, 26 deletions

diff --git a/src/compiler/glsl/ir.cpp b/src/compiler/glsl/ir.cpp
index c7a2496b6c8..750f61744e7 100644
--- a/src/compiler/glsl/ir.cpp
+++ b/src/compiler/glsl/ir.cpp
@@ -1696,21 +1696,6 @@ interpolation_string(unsigned interpolation)
    return "";
 }
 
-
-glsl_interp_qualifier
-ir_variable::determine_interpolation_mode(bool flat_shade)
-{
-   if (this->data.interpolation != INTERP_QUALIFIER_NONE)
-      return (glsl_interp_qualifier) this->data.interpolation;
-   int location = this->data.location;
-   bool is_gl_Color =
-      location == VARYING_SLOT_COL0 || location == VARYING_SLOT_COL1;
-   if (flat_shade && is_gl_Color)
-      return INTERP_QUALIFIER_FLAT;
-   else
-      return INTERP_QUALIFIER_SMOOTH;
-}
-
 const char *const ir_variable::warn_extension_table[] = {
    "",
    "GL_ARB_shader_stencil_export",
diff --git a/src/compiler/glsl/ir.h b/src/compiler/glsl/ir.h
index bf9b7caffae..93c893d36fe 100644
--- a/src/compiler/glsl/ir.h
+++ b/src/compiler/glsl/ir.h
@@ -432,17 +432,6 @@ public:
 
 
    /**
-    * Determine how this variable should be interpolated based on its
-    * interpolation qualifier (if present), whether it is gl_Color or
-    * gl_SecondaryColor, and whether flatshading is enabled in the current GL
-    * state.
-    *
-    * The return value will always be either INTERP_QUALIFIER_SMOOTH,
-    * INTERP_QUALIFIER_NOPERSPECTIVE, or INTERP_QUALIFIER_FLAT.
-    */
-   glsl_interp_qualifier determine_interpolation_mode(bool flat_shade);
-
-   /**
     * Determine whether or not a variable is part of a uniform or
     * shader storage block.
     */