From: Jason Ekstrand <jason.ekstrand@intel.com>
Date: Thu, 16 Jun 2016 17:57:39 +0000 (-0700)
Subject: anv/pipeline: Do invariance propagation on SPIR-V shaders
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;ds=sidebyside;h=e6c2fe451962e364f30f689dc48c34e2b6161b25;p=mesa.git

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>
---

diff --git a/src/intel/vulkan/anv_pipeline.c b/src/intel/vulkan/anv_pipeline.c
index b41e11e5dca..1c54081d47c 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);