[Mesa-dev] [RFC v1 38/38] i965: Move nir_lower_deref_instrs to right before locals_to_regs

Jason Ekstrand jason at jlekstrand.net
Wed Mar 21 05:55:12 UTC 2018


---
 src/intel/compiler/brw_nir.c            | 2 ++
 src/mesa/drivers/dri/i965/brw_program.c | 3 +--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/intel/compiler/brw_nir.c b/src/intel/compiler/brw_nir.c
index cf994ac..4fc6cae 100644
--- a/src/intel/compiler/brw_nir.c
+++ b/src/intel/compiler/brw_nir.c
@@ -740,6 +740,8 @@ brw_postprocess_nir(nir_shader *nir, const struct brw_compiler *compiler,
    OPT(nir_opt_dce);
    OPT(nir_opt_move_comparisons);
 
+   OPT(nir_lower_deref_instrs, ~0);
+
    OPT(nir_lower_locals_to_regs);
 
    if (unlikely(debug_enabled)) {
diff --git a/src/mesa/drivers/dri/i965/brw_program.c b/src/mesa/drivers/dri/i965/brw_program.c
index a871432..1ad4f74 100644
--- a/src/mesa/drivers/dri/i965/brw_program.c
+++ b/src/mesa/drivers/dri/i965/brw_program.c
@@ -77,7 +77,7 @@ brw_create_nir(struct brw_context *brw,
    /* First, lower the GLSL IR or Mesa IR to NIR */
    if (shader_prog) {
       nir = glsl_to_nir(shader_prog, stage, options);
-      nir_lower_deref_instrs(nir, ~0);
+      nir_lower_deref_instrs(nir, nir_lower_texture_derefs);
       nir_remove_dead_variables(nir, nir_var_shader_in | nir_var_shader_out);
       nir_lower_returns(nir);
       nir_validate_shader(nir);
@@ -85,7 +85,6 @@ brw_create_nir(struct brw_context *brw,
                  nir_shader_get_entrypoint(nir), true, false);
    } else {
       nir = prog_to_nir(prog, options);
-      nir_lower_deref_instrs(nir, ~0);
       NIR_PASS_V(nir, nir_lower_regs_to_ssa); /* turn registers into SSA */
    }
    nir_validate_shader(nir);
-- 
2.5.0.400.gff86faf



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