Mesa (master): radv: call nir_split_var_copies() before nir_lower_var_copies()

[Samuel Pitoiset]

Module: Mesa
Branch: master
Commit: ded150958740e47cb7bc4ba868289b88268f666c
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=ded150958740e47cb7bc4ba868289b88268f666c

Author: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Date:   Wed May 23 14:31:55 2018 +0200

radv: call nir_split_var_copies() before nir_lower_var_copies()

This doesn't nothing special currently because we don't create
any copy_var instructions, but this is needed for the next patch.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>

---

 src/amd/vulkan/radv_shader.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/amd/vulkan/radv_shader.c b/src/amd/vulkan/radv_shader.c
index 6ccbe81eff..7ed5d2a421 100644
--- a/src/amd/vulkan/radv_shader.c
+++ b/src/amd/vulkan/radv_shader.c
@@ -277,7 +277,10 @@ radv_shader_compile_to_nir(struct radv_device *device,
 	nir_lower_tex(nir, &tex_options);
 
 	nir_lower_vars_to_ssa(nir);
+
+	nir_split_var_copies(nir);
 	nir_lower_var_copies(nir);
+
 	nir_lower_global_vars_to_local(nir);
 	nir_remove_dead_variables(nir, nir_var_local);
 	nir_lower_subgroups(nir, &(struct nir_lower_subgroups_options) {