i965/vec4: Add a new dst_reg constructor accepting a brw_reg_type

This is useful for the upcoming texture support in NIR->vec4 pass,
as we found several cases where the brw_type is available, but not
the glsl_type.

Without this new constructor, the alternative would be:
dst_reg reg(MRF, <reg>)
reg.type = <brw_type>
reg.writemask = <mask>

Adding a new constructor makes code easier to read.

Reviewed-by: Jason Ekstrand <[email protected]>

2 files changed, 13 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_ir_vec4.h b/src/mesa/drivers/dri/i965/brw_ir_vec4.h
index fceacae0e51..966a410a15d 100644
--- a/src/mesa/drivers/dri/i965/brw_ir_vec4.h
+++ b/src/mesa/drivers/dri/i965/brw_ir_vec4.h
@@ -113,6 +113,8 @@ public:
    dst_reg(register_file file, int reg);
    dst_reg(register_file file, int reg, const glsl_type *type,
            unsigned writemask);
+   dst_reg(register_file file, int reg, brw_reg_type type,
+           unsigned writemask);
    dst_reg(struct brw_reg reg);
    dst_reg(class vec4_visitor *v, const struct glsl_type *type);
 
diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp b/src/mesa/drivers/dri/i965/brw_vec4.cpp
index 4e5518588c6..6f6e6271a91 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp
@@ -171,6 +171,17 @@ dst_reg::dst_reg(register_file file, int reg, const glsl_type *type,
    this->writemask = writemask;
 }
 
+dst_reg::dst_reg(register_file file, int reg, brw_reg_type type,
+                 unsigned writemask)
+{
+   init();
+
+   this->file = file;
+   this->reg = reg;
+   this->type = type;
+   this->writemask = writemask;
+}
+
 dst_reg::dst_reg(struct brw_reg reg)
 {
    init();