On 2017-07-03 08:47, Timothy Arceri wrote:
Previous we only incremented the guide for a single
dimension/wildcard.

V2: rework logic to avoid code duplication

Reviewed-by: Edward O'Callaghan <funfunc...@folklore1984.net>

---
 src/compiler/nir/nir_opt_copy_prop_vars.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/compiler/nir/nir_opt_copy_prop_vars.c
b/src/compiler/nir/nir_opt_copy_prop_vars.c
index 7f17469..89ddc8d 100644
--- a/src/compiler/nir/nir_opt_copy_prop_vars.c
+++ b/src/compiler/nir/nir_opt_copy_prop_vars.c
@@ -469,8 +469,8 @@ specialize_wildcards(nir_deref_var *deref,
    nir_deref_var *ret = nir_deref_var_create(mem_ctx, deref->var);

    nir_deref *deref_tail = deref->deref.child;
-   nir_deref *guide_tail = guide->deref.child;
-   nir_deref *spec_tail = specific->deref.child;
+   nir_deref *guide_tail = &guide->deref;
+   nir_deref *spec_tail = &specific->deref;
    nir_deref *ret_tail = &ret->deref;
    while (deref_tail) {
       switch (deref_tail->deref_type) {
@@ -495,14 +495,14 @@ specialize_wildcards(nir_deref_var *deref,
* the entry deref to find its corresponding wildcard and fill
              * this slot in with the value from the src.
              */
-            while (guide_tail) {
+            while (guide_tail->child) {
+               guide_tail = guide_tail->child;
+               spec_tail = spec_tail->child;
+
                if (guide_tail->deref_type == nir_deref_type_array &&
                    nir_deref_as_array(guide_tail)->deref_array_type ==
                    nir_deref_array_type_wildcard)
                   break;
-
-               guide_tail = guide_tail->child;
-               spec_tail = spec_tail->child;
             }

             nir_deref_array *spec_arr = nir_deref_as_array(spec_tail);

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