nir: Add a nir_deref_tail helper

[mesa.git] / src / glsl / nir / nir_split_var_copies.c

diff --git a/src/glsl/nir/nir_split_var_copies.c b/src/glsl/nir/nir_split_var_copies.c
index d463f7bdae95f5a572757b4b6093e88ecd8f2a49..bfbef72c1ab63b5932f1362f2020a5ddef70ceef 100644 (file)
--- a/src/glsl/nir/nir_split_var_copies.c
+++ b/src/glsl/nir/nir_split_var_copies.c
@@ -67,14 +67,6 @@ struct split_var_copies_state {
    bool progress;
 };
 
-static nir_deref *
-get_deref_tail(nir_deref *deref)
-{
-   while (deref->child != NULL)
-      deref = deref->child;
-   return deref;
-}
-
 /* Recursively constructs deref chains to split a copy instruction into
  * multiple (if needed) copy instructions with full-length deref chains.
  * External callers of this function should pass the tail and head of the
@@ -227,8 +219,8 @@ split_var_copies_block(nir_block *block, void *void_state)
 
       nir_deref *dest_head = &intrinsic->variables[0]->deref;
       nir_deref *src_head = &intrinsic->variables[1]->deref;
-      nir_deref *dest_tail = get_deref_tail(dest_head);
-      nir_deref *src_tail = get_deref_tail(src_head);
+      nir_deref *dest_tail = nir_deref_tail(dest_head);
+      nir_deref *src_tail = nir_deref_tail(src_head);
 
       switch (glsl_get_base_type(src_tail->type)) {
       case GLSL_TYPE_ARRAY: