Mesa (master): nir: add lower_all_io_to_elements

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Module: Mesa
Branch: master
Commit: 1ae0c030cbbdcbeaaf82384ef69f4d610677172e
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=1ae0c030cbbdcbeaaf82384ef69f4d610677172e

Author: Rob Clark <robdclark at gmail.com>
Date:   Thu Mar 28 10:57:31 2019 -0400

nir: add lower_all_io_to_elements

I need this part of lower_all_io_to_temps but without the actual
lowering to temps part.

Signed-off-by: Rob Clark <robdclark at gmail.com>

---

 src/compiler/nir/nir.h                    | 1 +
 src/mesa/state_tracker/st_glsl_to_nir.cpp | 1 +
 2 files changed, 2 insertions(+)

diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h
index 806e47dd7bb..bc72d8f83f5 100644
--- a/src/compiler/nir/nir.h
+++ b/src/compiler/nir/nir.h
@@ -2273,6 +2273,7 @@ typedef struct nir_shader_compiler_options {
    bool lower_extract_word;
 
    bool lower_all_io_to_temps;
+   bool lower_all_io_to_elements;
 
    /**
     * Does the driver support real 32-bit integers?  (Otherwise, integers
diff --git a/src/mesa/state_tracker/st_glsl_to_nir.cpp b/src/mesa/state_tracker/st_glsl_to_nir.cpp
index 96fc257032e..8a58328ce48 100644
--- a/src/mesa/state_tracker/st_glsl_to_nir.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_nir.cpp
@@ -922,6 +922,7 @@ st_finalize_nir(struct st_context *st, struct gl_program *prog,
    NIR_PASS_V(nir, nir_split_var_copies);
    NIR_PASS_V(nir, nir_lower_var_copies);
    if (options->lower_all_io_to_temps ||
+       options->lower_all_io_to_elements ||
        nir->info.stage == MESA_SHADER_VERTEX ||
        nir->info.stage == MESA_SHADER_GEOMETRY) {
       NIR_PASS_V(nir, nir_lower_io_arrays_to_elements_no_indirects, false);