nir: Add a ssa_dest_init_for_type helper

This would be useful a number of places

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>

diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h
index 1f4ec2c..7ee4bfc 100644 (file)
--- a/src/compiler/nir/nir.h
+++ b/src/compiler/nir/nir.h
@@ -2228,6 +2228,15 @@ void nir_ssa_dest_init(nir_instr *instr, nir_dest *dest,
 void nir_ssa_def_init(nir_instr *instr, nir_ssa_def *def,
                       unsigned num_components, unsigned bit_size,
                       const char *name);
+static inline void
+nir_ssa_dest_init_for_type(nir_instr *instr, nir_dest *dest,
+                           const struct glsl_type *type,
+                           const char *name)
+{
+   assert(glsl_type_is_vector_or_scalar(type));
+   nir_ssa_dest_init(instr, dest, glsl_get_components(type),
+                     glsl_get_bit_size(type), name);
+}
 void nir_ssa_def_rewrite_uses(nir_ssa_def *def, nir_src new_src);
 void nir_ssa_def_rewrite_uses_after(nir_ssa_def *def, nir_src new_src,
                                     nir_instr *after_me);