Mesa (master): i965/program: Move nir_lower_system_values higher up

[Jason Ekstrand]

Module: Mesa
Branch: master
Commit: ece206b84864e3727bee2672b838f70f2a3f460c
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=ece206b84864e3727bee2672b838f70f2a3f460c

Author: Jason Ekstrand <jason.ekstrand at intel.com>
Date:   Fri Sep  1 22:17:50 2017 -0700

i965/program: Move nir_lower_system_values higher up

We want this to get called before nir_lower_subgroups which is going in
brw_preprocess_nir.  Now that nir_lower_wpos_ytransform can handle
system values, this should be safe to do.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin at intel.com>

---

 src/mesa/drivers/dri/i965/brw_program.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/mesa/drivers/dri/i965/brw_program.c b/src/mesa/drivers/dri/i965/brw_program.c
index 3b54b37cfa..ebb6998a00 100644
--- a/src/mesa/drivers/dri/i965/brw_program.c
+++ b/src/mesa/drivers/dri/i965/brw_program.c
@@ -89,6 +89,8 @@ brw_create_nir(struct brw_context *brw,
 
    nir = brw_preprocess_nir(brw->screen->compiler, nir);
 
+   NIR_PASS_V(nir, nir_lower_system_values);
+
    if (stage == MESA_SHADER_FRAGMENT) {
       static const struct nir_lower_wpos_ytransform_options wpos_options = {
          .state_tokens = {STATE_INTERNAL, STATE_FB_WPOS_Y_TRANSFORM, 0, 0, 0},
@@ -104,7 +106,6 @@ brw_create_nir(struct brw_context *brw,
       }
    }
 
-   NIR_PASS_V(nir, nir_lower_system_values);
    NIR_PASS_V(nir, brw_nir_lower_uniforms, is_scalar);
 
    return nir;