[Mesa-dev] [PATCH 1/2] radv/nir: call opt_remove_phis after trivial continues.

[Dave Airlie]

From: Dave Airlie <airlied at redhat.com>

With the shaders in the ssao demo, the nir_opt_if wasn't
working properly without this, after this the if gets optimised
so that loop unrolling gets called.

(loop unrolling fails due to instruction count, but at least
it gets to do that.)

Signed-off-by: Dave Airlie <airlied at redhat.com>
---
 src/amd/vulkan/radv_shader.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/amd/vulkan/radv_shader.c b/src/amd/vulkan/radv_shader.c
index 1e25ea3..87deb7c 100644
--- a/src/amd/vulkan/radv_shader.c
+++ b/src/amd/vulkan/radv_shader.c
@@ -129,6 +129,7 @@ radv_optimize_nir(struct nir_shader *shader)
                 if (nir_opt_trivial_continues(shader)) {
                         progress = true;
                         NIR_PASS(progress, shader, nir_copy_prop);
+			NIR_PASS(progress, shader, nir_opt_remove_phis);
                         NIR_PASS(progress, shader, nir_opt_dce);
                 }
                 NIR_PASS(progress, shader, nir_opt_if);
-- 
2.9.4