[Mesa-dev] [PATCH 3/4] i965: move brw_nir_lower_gl_images call

[Alejandro Piñeiro]

At this moment that lowering is using info coming from the
UniformStorage, so for the ARB_gl_spirv codepath, it needs to be done
after calling gl_nir_link_uniforms. As for the GLSL codepath it can
also be called later, we just move the call on both cases, to avoid
adding several shader->spirv_data checks, and keep the patch as small
as possible.

This is the first patch needed to fix the following piglit tests:

tests/spec/arb_gl_spirv/linker/uniform/multisampler.shader_test
tests/spec/arb_gl_spirv/linker/uniform/multisampler-array.shader_test

but fixes thousands of tests when borrowing the tests from other specs
(that needs to be done manually right now).
---
 src/mesa/drivers/dri/i965/brw_link.cpp  | 10 ++++++++++
 src/mesa/drivers/dri/i965/brw_program.c |  1 -
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/mesa/drivers/dri/i965/brw_link.cpp b/src/mesa/drivers/dri/i965/brw_link.cpp
index 0723255dec6..2cbb1e0b879 100644
--- a/src/mesa/drivers/dri/i965/brw_link.cpp
+++ b/src/mesa/drivers/dri/i965/brw_link.cpp
@@ -270,6 +270,16 @@ brw_link_shader(struct gl_context *ctx, struct gl_shader_program *shProg)
       gl_nir_link_assign_xfb_resources(ctx, shProg);
    }
 
+   for (stage = 0; stage < ARRAY_SIZE(shProg->_LinkedShaders); stage++) {
+      struct gl_linked_shader *shader = shProg->_LinkedShaders[stage];
+      if (!shader)
+         continue;
+
+      struct gl_program *prog = shader->Program;
+
+      NIR_PASS_V(prog->nir, brw_nir_lower_gl_images, prog);
+   }
+
    /* Determine first and last stage. */
    unsigned first = MESA_SHADER_STAGES;
    unsigned last = 0;
diff --git a/src/mesa/drivers/dri/i965/brw_program.c b/src/mesa/drivers/dri/i965/brw_program.c
index ba418e45b85..f5ebd3c3b05 100644
--- a/src/mesa/drivers/dri/i965/brw_program.c
+++ b/src/mesa/drivers/dri/i965/brw_program.c
@@ -140,7 +140,6 @@ brw_create_nir(struct brw_context *brw,
    }
 
    NIR_PASS_V(nir, brw_nir_lower_uniforms, is_scalar);
-   NIR_PASS_V(nir, brw_nir_lower_gl_images, prog);
 
    return nir;
 }
-- 
2.14.1