Mesa (master): nir: Properly invalidate metadata in nir_split_var_copies() .

[Kenneth Graunke]

Module: Mesa
Branch: master
Commit: 8bb44510fca5315bbdd61502c72c22c7198c0daf
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=8bb44510fca5315bbdd61502c72c22c7198c0daf

Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Mon Nov  2 21:05:08 2015 -0800

nir: Properly invalidate metadata in nir_split_var_copies().

Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
Reviewed-by: Jason Ekstrand <jason.ekstrand at intel.com>
Reviewed-by: Eduardo Lima Mitev <elima at igalia.com>
Cc: mesa-stable at lists.freedesktop.org

---

 src/glsl/nir/nir_split_var_copies.c |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/glsl/nir/nir_split_var_copies.c b/src/glsl/nir/nir_split_var_copies.c
index d2ea58a..d463f7b 100644
--- a/src/glsl/nir/nir_split_var_copies.c
+++ b/src/glsl/nir/nir_split_var_copies.c
@@ -271,6 +271,11 @@ split_var_copies_impl(nir_function_impl *impl)
 
    ralloc_free(state.dead_ctx);
 
+   if (state.progress) {
+      nir_metadata_preserve(impl, nir_metadata_block_index |
+                                  nir_metadata_dominance);
+   }
+
    return state.progress;
 }