This will be used by the generic implementation of the image and
atomic counter built-ins to extract the register location of its
arguments without having to be aware of the actual visitor type.
---
src/mesa/drivers/dri/i965/brw_fs.h | 3 +++
src/mesa/drivers/dri/i965/brw_fs_visitor.cpp | 7 +++++++
src/mesa/drivers/dri/i965/brw_shader.h | 3 +++
src/mesa/drivers/dri/i965/brw_vec4.h | 3 +++
src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp | 7 +++++++
5 files changed, 23 insertions(+)
diff --git a/src/mesa/drivers/dri/i965/brw_fs.h
b/src/mesa/drivers/dri/i965/brw_fs.h
index 4f9767c..4ada075 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.h
+++ b/src/mesa/drivers/dri/i965/brw_fs.h
@@ -237,6 +237,9 @@ public:
void visit(ir_emit_vertex *);
void visit(ir_end_primitive *);
+ /** Visit an instruction \p ir and extract the result. */
+ virtual fs_reg &visit_result(ir_instruction *ir);
+
uint32_t gather_channel(ir_texture *ir, int sampler);
void swizzle_result(ir_texture *ir, fs_reg orig_val, int sampler);
diff --git a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
index f45f089..b5957c6 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
@@ -2874,6 +2874,13 @@ fs_visitor::resolve_bool_comparison(ir_rvalue *rvalue,
fs_reg *reg)
*reg = temp;
}
+fs_reg &
+fs_visitor::visit_result(ir_instruction *ir)
+{
+ ir->accept(this);
+ return result;
+}
+
fs_visitor::fs_visitor(struct brw_context *brw,
struct brw_wm_compile *c,
struct gl_shader_program *shader_prog,
diff --git a/src/mesa/drivers/dri/i965/brw_shader.h
b/src/mesa/drivers/dri/i965/brw_shader.h
index c31f76d..48382af 100644
--- a/src/mesa/drivers/dri/i965/brw_shader.h
+++ b/src/mesa/drivers/dri/i965/brw_shader.h
@@ -141,6 +141,9 @@ public:
*/
exec_list instructions;
+ /** Visit an instruction \p ir and extract the result. */
+ virtual backend_reg &visit_result(ir_instruction *ir) = 0;
+
virtual void dump_instruction(backend_instruction *inst) = 0;
void dump_instructions();
diff --git a/src/mesa/drivers/dri/i965/brw_vec4.h
b/src/mesa/drivers/dri/i965/brw_vec4.h
index 50e4794..355d497 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.h
+++ b/src/mesa/drivers/dri/i965/brw_vec4.h
@@ -354,6 +354,9 @@ public:
virtual void visit(ir_end_primitive *);
/*@}*/
+ /** Visit an instruction \p ir and extract the result. */
+ virtual src_reg &visit_result(ir_instruction *ir);
+
src_reg result;
/* Regs for vertex results. Generated at ir_variable visiting time
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
index 5b0ceea..97bd26d 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
@@ -3230,6 +3230,13 @@ vec4_visitor::resolve_ud_negate(src_reg *reg)
*reg = temp;
}
+src_reg &
+vec4_visitor::visit_result(ir_instruction *ir)
+{
+ ir->accept(this);
+ return result;
+}
+
vec4_visitor::vec4_visitor(struct brw_context *brw,
struct brw_vec4_compile *c,
struct gl_program *prog,
--
1.8.3.4
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