Mesa (master): nir: Fix logic that ends combine barrier sequence

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Module: Mesa
Branch: master
Commit: d1f6d2f3e8683f10773e7b349ab4ff6f181233a6
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=d1f6d2f3e8683f10773e7b349ab4ff6f181233a6

Author: Caio Marcelo de Oliveira Filho <caio.oliveira at intel.com>
Date:   Fri Jun  5 23:05:42 2020 -0700

nir: Fix logic that ends combine barrier sequence

The combination must stop when we see a scoped barrier that have
execution scope, i.e. it has control barrier behavior.  The code was
mistakenly looking at the wrong scope.

Fixes: 345b5847b42 ("nir: Replace the scoped_memory barrier by a scoped_barrier")
Reviewed-by: Boris Brezillon <boris.brezillon at collabora.com>
Reviewed-by: Jason Ekstrand <jason at jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5365>

---

 src/compiler/nir/nir_opt_barriers.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/nir/nir_opt_barriers.c b/src/compiler/nir/nir_opt_barriers.c
index 609cbc0afdc..49ab10511f8 100644
--- a/src/compiler/nir/nir_opt_barriers.c
+++ b/src/compiler/nir/nir_opt_barriers.c
@@ -40,7 +40,7 @@ nir_opt_combine_memory_barriers_impl(
 
          nir_intrinsic_instr *current = nir_instr_as_intrinsic(instr);
          if (current->intrinsic != nir_intrinsic_scoped_barrier ||
-             nir_intrinsic_memory_scope(current) != NIR_SCOPE_NONE) {
+             nir_intrinsic_execution_scope(current) != NIR_SCOPE_NONE) {
             prev = NULL;
             continue;
          }