[Mesa-dev] [PATCH 07/78] i965/vec4: Overload make_reg_for_system_value() to allow reuse in NIR->vec4 pass

[Eduardo Lima Mitev]

From: Alejandro Piñeiro <apinheiro at igalia.com>

The new virtual method is more flexible, it has a signature:

dst_reg *make_reg_for_system_value(int location, const glsl_type *type);

so the current method will be chained through this one.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89580
---
 src/mesa/drivers/dri/i965/brw_vec4.cpp            | 6 ++++++
 src/mesa/drivers/dri/i965/brw_vec4.h              | 5 ++++-
 src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp | 7 ++++---
 src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.h   | 3 ++-
 src/mesa/drivers/dri/i965/brw_vec4_vs_visitor.cpp | 5 +++--
 src/mesa/drivers/dri/i965/brw_vs.h                | 3 ++-
 6 files changed, 21 insertions(+), 8 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp b/src/mesa/drivers/dri/i965/brw_vec4.cpp
index dcffa04..ff1ef75 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp
@@ -1684,6 +1684,12 @@ vec4_visitor::emit_shader_time_end()
    emit(BRW_OPCODE_ENDIF);
 }
 
+dst_reg *
+vec4_visitor::make_reg_for_system_value(ir_variable *ir)
+{
+   return make_reg_for_system_value(ir->data.location, ir->type);
+}
+
 void
 vec4_visitor::emit_shader_time_write(int shader_time_subindex, src_reg value)
 {
diff --git a/src/mesa/drivers/dri/i965/brw_vec4.h b/src/mesa/drivers/dri/i965/brw_vec4.h
index 6535f19..2a53d9a 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.h
+++ b/src/mesa/drivers/dri/i965/brw_vec4.h
@@ -411,6 +411,9 @@ public:
    virtual void nir_emit_jump(nir_jump_instr *instr);
    virtual void nir_emit_texture(nir_tex_instr *instr);
 
+   virtual dst_reg *make_reg_for_system_value(int location,
+                                              const glsl_type *type) = 0;
+
    src_reg *nir_inputs;
    int *nir_outputs;
    brw_reg_type *nir_output_types;
@@ -423,7 +426,7 @@ protected:
                                     bool interleaved);
    void setup_payload_interference(struct ra_graph *g, int first_payload_node,
                                    int reg_node_count);
-   virtual dst_reg *make_reg_for_system_value(ir_variable *ir) = 0;
+   virtual dst_reg *make_reg_for_system_value(ir_variable *ir);
    virtual void assign_binding_table_offsets();
    virtual void setup_payload() = 0;
    virtual void emit_prolog() = 0;
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
index 69bcf5a..91bc849 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
@@ -49,11 +49,12 @@ vec4_gs_visitor::vec4_gs_visitor(const struct brw_compiler *compiler,
 
 
 dst_reg *
-vec4_gs_visitor::make_reg_for_system_value(ir_variable *ir)
+vec4_gs_visitor::make_reg_for_system_value(int location,
+                                           const glsl_type *type)
 {
-   dst_reg *reg = new(mem_ctx) dst_reg(this, ir->type);
+   dst_reg *reg = new(mem_ctx) dst_reg(this, type);
 
-   switch (ir->data.location) {
+   switch (location) {
    case SYSTEM_VALUE_INVOCATION_ID:
       this->current_annotation = "initialize gl_InvocationID";
       emit(GS_OPCODE_GET_INSTANCE_ID, *reg);
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.h b/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.h
index e693c56..0f1c705 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.h
+++ b/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.h
@@ -76,7 +76,8 @@ public:
                    int shader_time_index);
 
 protected:
-   virtual dst_reg *make_reg_for_system_value(ir_variable *ir);
+   virtual dst_reg *make_reg_for_system_value(int location,
+                                              const glsl_type *type);
    virtual void setup_payload();
    virtual void emit_prolog();
    virtual void emit_program_code();
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_vs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_vs_visitor.cpp
index f93062b..1fe23ba 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_vs_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_vs_visitor.cpp
@@ -143,7 +143,8 @@ vec4_vs_visitor::emit_prolog()
 
 
 dst_reg *
-vec4_vs_visitor::make_reg_for_system_value(ir_variable *ir)
+vec4_vs_visitor::make_reg_for_system_value(int location,
+                                           const glsl_type *type)
 {
    /* VertexID is stored by the VF as the last vertex element, but
     * we don't represent it with a flag in inputs_read, so we call
@@ -151,7 +152,7 @@ vec4_vs_visitor::make_reg_for_system_value(ir_variable *ir)
     */
    dst_reg *reg = new(mem_ctx) dst_reg(ATTR, VERT_ATTRIB_MAX);
 
-   switch (ir->data.location) {
+   switch (location) {
    case SYSTEM_VALUE_BASE_VERTEX:
       reg->writemask = WRITEMASK_X;
       vs_prog_data->uses_vertexid = true;
diff --git a/src/mesa/drivers/dri/i965/brw_vs.h b/src/mesa/drivers/dri/i965/brw_vs.h
index 61f9b00..873ffb7 100644
--- a/src/mesa/drivers/dri/i965/brw_vs.h
+++ b/src/mesa/drivers/dri/i965/brw_vs.h
@@ -99,7 +99,8 @@ public:
                    bool use_legacy_snorm_formula);
 
 protected:
-   virtual dst_reg *make_reg_for_system_value(ir_variable *ir);
+   virtual dst_reg *make_reg_for_system_value(int location,
+                                              const glsl_type *type);
    virtual void setup_payload();
    virtual void emit_prolog();
    virtual void emit_program_code();
-- 
2.1.4