From e6c2fe451962e364f30f689dc48c34e2b6161b25 Mon Sep 17 00:00:00 2001
From: Jason Ekstrand <jason.ekstrand@intel.com>
Date: Thu, 16 Jun 2016 10:57:39 -0700
Subject: [PATCH] anv/pipeline: Do invariance propagation on SPIR-V shaders

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "12.0" <mesa-stable@lists.freedesktop.org>
---
 src/intel/vulkan/anv_pipeline.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/intel/vulkan/anv_pipeline.c b/src/intel/vulkan/anv_pipeline.c
index b41e11e..1c54081 100644
--- a/src/intel/vulkan/anv_pipeline.c
+++ b/src/intel/vulkan/anv_pipeline.c
@@ -165,6 +165,9 @@ anv_shader_compile_to_nir(struct anv_device *device,
       nir_remove_dead_variables(nir, nir_var_system_value);
       nir_validate_shader(nir);
 
+      nir_propagate_invariant(nir);
+      nir_validate_shader(nir);
+
       nir_lower_io_to_temporaries(entry_point->shader, entry_point, true, false);
 
       nir_lower_system_values(nir);
-- 
2.7.4