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nir: fix nir_opt_copy_prop_vars() for arrays of arrays

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Previously we only incremented the guide for a single
dimension/wildcard.

V2: rework logic to avoid code duplication

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Cc: mesa-stable@lists.freedesktop.org
This commit is contained in:
Timothy Arceri
2017-06-30 12:03:18 +10:00
parent ecf91898e0
commit 3f0fb23b03
1 changed files with 6 additions and 6 deletions
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src/compiler/nir/nir_opt_copy_prop_vars.c
+6 -6
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@@ -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);