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authorJason Ekstrand <[email protected]>2015-11-11 10:04:43 -0800
committerJason Ekstrand <[email protected]>2015-11-23 11:02:15 -0800
commitce767bbdfff7c2a7829b652c111a11eb9ddba026 (patch)
treede930008c2232086b3915d44088a89eae3ea87eb /src
parent9cf108193b61c342c94c4cd980c4b403638e1051 (diff)
i965: Move postprocess_nir to codegen time
This allows us to insert NIR passes between initial NIR compilation and optimization (link time) and actual backend code-gen. In particular, it will allow us to do shader variants in NIR and share some of that shader variant code between backends. Reviewed-by: Iago Toral Quiroga <[email protected]>
Diffstat (limited to 'src')
-rw-r--r--src/mesa/drivers/dri/i965/brw_fs.cpp11
-rw-r--r--src/mesa/drivers/dri/i965/brw_nir.c1
-rw-r--r--src/mesa/drivers/dri/i965/brw_vec4.cpp6
-rw-r--r--src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp7
4 files changed, 20 insertions, 5 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 7376f951fa8..e9e3d4dfe81 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -43,6 +43,7 @@
#include "brw_wm.h"
#include "brw_fs.h"
#include "brw_cs.h"
+#include "brw_nir.h"
#include "brw_vec4_gs_visitor.h"
#include "brw_cfg.h"
#include "brw_dead_control_flow.h"
@@ -5430,13 +5431,16 @@ brw_compile_fs(const struct brw_compiler *compiler, void *log_data,
void *mem_ctx,
const struct brw_wm_prog_key *key,
struct brw_wm_prog_data *prog_data,
- const nir_shader *shader,
+ const nir_shader *src_shader,
struct gl_program *prog,
int shader_time_index8, int shader_time_index16,
bool use_rep_send,
unsigned *final_assembly_size,
char **error_str)
{
+ nir_shader *shader = nir_shader_clone(mem_ctx, src_shader);
+ shader = brw_postprocess_nir(shader, compiler->devinfo, true);
+
/* key->alpha_test_func means simulating alpha testing via discards,
* so the shader definitely kills pixels.
*/
@@ -5589,11 +5593,14 @@ brw_compile_cs(const struct brw_compiler *compiler, void *log_data,
void *mem_ctx,
const struct brw_cs_prog_key *key,
struct brw_cs_prog_data *prog_data,
- const nir_shader *shader,
+ const nir_shader *src_shader,
int shader_time_index,
unsigned *final_assembly_size,
char **error_str)
{
+ nir_shader *shader = nir_shader_clone(mem_ctx, src_shader);
+ shader = brw_postprocess_nir(shader, compiler->devinfo, true);
+
prog_data->local_size[0] = shader->info.cs.local_size[0];
prog_data->local_size[1] = shader->info.cs.local_size[1];
prog_data->local_size[2] = shader->info.cs.local_size[2];
diff --git a/src/mesa/drivers/dri/i965/brw_nir.c b/src/mesa/drivers/dri/i965/brw_nir.c
index b9d523dd0b6..16969530577 100644
--- a/src/mesa/drivers/dri/i965/brw_nir.c
+++ b/src/mesa/drivers/dri/i965/brw_nir.c
@@ -412,7 +412,6 @@ brw_create_nir(struct brw_context *brw,
nir = brw_preprocess_nir(nir, is_scalar);
nir = brw_lower_nir(nir, devinfo, shader_prog, is_scalar);
- nir = brw_postprocess_nir(nir, devinfo, is_scalar);
return nir;
}
diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp b/src/mesa/drivers/dri/i965/brw_vec4.cpp
index 44893e3e593..bf40a583ea8 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp
@@ -1931,13 +1931,17 @@ brw_compile_vs(const struct brw_compiler *compiler, void *log_data,
void *mem_ctx,
const struct brw_vs_prog_key *key,
struct brw_vs_prog_data *prog_data,
- const nir_shader *shader,
+ const nir_shader *src_shader,
gl_clip_plane *clip_planes,
bool use_legacy_snorm_formula,
int shader_time_index,
unsigned *final_assembly_size,
char **error_str)
{
+ nir_shader *shader = nir_shader_clone(mem_ctx, src_shader);
+ shader = brw_postprocess_nir(shader, compiler->devinfo,
+ compiler->scalar_stage[MESA_SHADER_VERTEX]);
+
const unsigned *assembly = NULL;
unsigned nr_attributes = _mesa_bitcount_64(prog_data->inputs_read);
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
index 89e49964fa2..7174ee94067 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_gs_visitor.cpp
@@ -30,6 +30,7 @@
#include "brw_vec4_gs_visitor.h"
#include "gen6_gs_visitor.h"
#include "brw_fs.h"
+#include "brw_nir.h"
namespace brw {
@@ -606,7 +607,7 @@ brw_compile_gs(const struct brw_compiler *compiler, void *log_data,
void *mem_ctx,
const struct brw_gs_prog_key *key,
struct brw_gs_prog_data *prog_data,
- const nir_shader *shader,
+ const nir_shader *src_shader,
struct gl_shader_program *shader_prog,
int shader_time_index,
unsigned *final_assembly_size,
@@ -616,6 +617,10 @@ brw_compile_gs(const struct brw_compiler *compiler, void *log_data,
memset(&c, 0, sizeof(c));
c.key = *key;
+ nir_shader *shader = nir_shader_clone(mem_ctx, src_shader);
+ shader = brw_postprocess_nir(shader, compiler->devinfo,
+ compiler->scalar_stage[MESA_SHADER_GEOMETRY]);
+
prog_data->include_primitive_id =
(shader->info.inputs_read & VARYING_BIT_PRIMITIVE_ID) != 0;