From 0f037bd71ffe083c05cd0867ef54bce91ff84243 Mon Sep 17 00:00:00 2001
From: Kenneth Graunke <kenneth@whitecape.org>
Date: Mon, 2 Nov 2015 21:21:25 -0800
Subject: nir: Properly invalidate metadata in nir_opt_copy_prop().

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>
Cc: mesa-stable@lists.freedesktop.org
---
 src/glsl/nir/nir_opt_copy_propagate.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/glsl/nir/nir_opt_copy_propagate.c b/src/glsl/nir/nir_opt_copy_propagate.c
index 96520f8a361..7d8bdd7f2ca 100644
--- a/src/glsl/nir/nir_opt_copy_propagate.c
+++ b/src/glsl/nir/nir_opt_copy_propagate.c
@@ -262,6 +262,12 @@ nir_copy_prop_impl(nir_function_impl *impl)
    bool progress = false;
 
    nir_foreach_block(impl, copy_prop_block, &progress);
+
+   if (progress) {
+      nir_metadata_preserve(impl, nir_metadata_block_index |
+                                  nir_metadata_dominance);
+   }
+
    return progress;
 }
 
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