nir/intrinsics: Add a second const index to load_uniform

In the i965 backend, we want to be able to "pull apart" the uniforms and
push some of them into the shader through a different path.  In order to do
this effectively, we need to know which variable is actually being referred
to by a given uniform load.  Previously, it was completely flattened by
nir_lower_io which made things difficult.  This adds more information to
the intrinsic to make this easier for us.

Reviewed-by: Kenneth Graunke <[email protected]>

2 files changed, 2 insertions, 2 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
index b32f8a75e73..ad51d80fd09 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
@@ -1504,7 +1504,7 @@ fs_visitor::nir_emit_intrinsic(const fs_builder &bld, nir_intrinsic_instr *instr
       has_indirect = true;
       /* fallthrough */
    case nir_intrinsic_load_uniform: {
-      unsigned index = instr->const_index[0];
+      unsigned index = instr->const_index[0] + instr->const_index[1];
 
       fs_reg uniform_reg;
       if (index < num_direct_uniforms) {
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
index 4f689dff1ba..9e52229190e 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
@@ -570,7 +570,7 @@ vec4_visitor::nir_emit_intrinsic(nir_intrinsic_instr *instr)
       has_indirect = true;
       /* fallthrough */
    case nir_intrinsic_load_uniform: {
-      int uniform = instr->const_index[0];
+      int uniform = instr->const_index[0] + instr->const_index[1];
 
       dest = get_nir_dest(instr->dest);