nir: Add a flag to lower_io to force "sample" interpolation

[mesa.git] / src / mesa / drivers / dri / i965 / brw_link.cpp

diff --git a/src/mesa/drivers/dri/i965/brw_link.cpp b/src/mesa/drivers/dri/i965/brw_link.cpp
index b2664b8b6ea6f3268db43ea2035612d4e412d4c5..2b1fa61e11797b9e256a1f05630523d88b539f0c 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_link.cpp
+++ b/src/mesa/drivers/dri/i965/brw_link.cpp
@@ -101,17 +101,27 @@ process_glsl_ir(gl_shader_stage stage,
 
    ralloc_adopt(mem_ctx, shader->ir);
 
+   lower_blend_equation_advanced(shader);
+
    /* lower_packing_builtins() inserts arithmetic instructions, so it
     * must precede lower_instructions().
     */
    brw_lower_packing_builtins(brw, shader->Stage, shader->ir);
    do_mat_op_to_vec(shader->ir);
-   lower_instructions(shader->ir,
-                      DIV_TO_MUL_RCP |
-                      SUB_TO_ADD_NEG |
-                      EXP_TO_EXP2 |
-                      LOG_TO_LOG2 |
-                      DFREXP_DLDEXP_TO_ARITH);
+
+   unsigned instructions_to_lower = (DIV_TO_MUL_RCP |
+                                     SUB_TO_ADD_NEG |
+                                     EXP_TO_EXP2 |
+                                     LOG_TO_LOG2 |
+                                     DFREXP_DLDEXP_TO_ARITH);
+   if (brw->gen < 7) {
+      instructions_to_lower |= BIT_COUNT_TO_MATH |
+                               EXTRACT_TO_SHIFTS |
+                               INSERT_TO_SHIFTS |
+                               REVERSE_TO_SHIFTS;
+   }
+
+   lower_instructions(shader->ir, instructions_to_lower);
 
    /* Pre-gen6 HW can only nest if-statements 16 deep.  Beyond this,
     * if-statements need to be flattened.
@@ -124,7 +134,6 @@ process_glsl_ir(gl_shader_stage stage,
    do_vec_index_to_cond_assign(shader->ir);
    lower_vector_insert(shader->ir, true);
    lower_offset_arrays(shader->ir);
-   brw_do_lower_unnormalized_offset(shader->ir);
    lower_noise(shader->ir);
    lower_quadop_vector(shader->ir, false);
 
@@ -277,5 +286,16 @@ brw_link_shader(struct gl_context *ctx, struct gl_shader_program *shProg)
       return false;
 
    build_program_resource_list(ctx, shProg);
+
+   for (stage = 0; stage < ARRAY_SIZE(shProg->_LinkedShaders); stage++) {
+      struct gl_linked_shader *shader = shProg->_LinkedShaders[stage];
+      if (!shader)
+         continue;
+
+      /* The GLSL IR won't be needed anymore. */
+      ralloc_free(shader->ir);
+      shader->ir = NULL;
+   }
+
    return true;
 }