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nir: Split nir_index_vars into two functions

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We also very slightly change the semantics.  It no longer is one index
per list for global variables and is a single index over-all.

Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5966>
This commit is contained in:
Jason Ekstrand
2020-07-20 16:49:46 -05:00
committed by Marge Bot
parent 86c9303814
commit 3be0be7d54
4 changed files with 26 additions and 19 deletions
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35
src/compiler/nir/nir.c
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@@ -1821,36 +1821,43 @@ nir_index_instrs(nir_function_impl *impl)
}
static void
index_var_list(struct exec_list *list)
index_var_list(struct exec_list *list, unsigned *count)
{
unsigned next_index = 0;
nir_foreach_variable(var, list)
var->index = next_index++;
var->index = (*count)++;
}
void
nir_index_vars(nir_shader *shader, nir_function_impl *impl, nir_variable_mode modes)
unsigned
nir_shader_index_vars(nir_shader *shader, nir_variable_mode modes)
{
if ((modes & nir_var_function_temp) && impl)
index_var_list(&impl->locals);
unsigned count = 0;
if (modes & nir_var_shader_temp)
index_var_list(&shader->globals);
index_var_list(&shader->globals, &count);
if (modes & nir_var_shader_in)
index_var_list(&shader->inputs);
index_var_list(&shader->inputs, &count);
if (modes & nir_var_shader_out)
index_var_list(&shader->outputs);
index_var_list(&shader->outputs, &count);
if (modes & (nir_var_uniform | nir_var_mem_ubo | nir_var_mem_ssbo))
index_var_list(&shader->uniforms);
index_var_list(&shader->uniforms, &count);
if (modes & nir_var_mem_shared)
index_var_list(&shader->shared);
index_var_list(&shader->shared, &count);
if (modes & nir_var_system_value)
index_var_list(&shader->system_values);
index_var_list(&shader->system_values, &count);
return count;
}
unsigned
nir_function_impl_index_vars(nir_function_impl *impl)
{
unsigned count = 0;
index_var_list(&impl->locals, &count);
return count;
}
static nir_instr *

3
src/compiler/nir/nir.h
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@@ -3737,7 +3737,8 @@ unsigned nir_index_instrs(nir_function_impl *impl);
void nir_index_blocks(nir_function_impl *impl);
void nir_index_vars(nir_shader *shader, nir_function_impl *impl, nir_variable_mode modes);
unsigned nir_shader_index_vars(nir_shader *shader, nir_variable_mode modes);
unsigned nir_function_impl_index_vars(nir_function_impl *impl);
void nir_print_shader(nir_shader *shader, FILE *fp);
void nir_print_shader_annotated(nir_shader *shader, FILE *fp, struct hash_table *errors);

3
src/compiler/nir/nir_opt_large_constants.c
View File

@@ -176,8 +176,7 @@ nir_opt_large_constants(nir_shader *shader,
/* This pass can only be run once */
assert(shader->constant_data == NULL && shader->constant_data_size == 0);
unsigned num_locals = exec_list_length(&impl->locals);
nir_index_vars(shader, impl, nir_var_function_temp);
unsigned num_locals = nir_function_impl_index_vars(impl);
if (num_locals == 0) {
nir_shader_preserve_all_metadata(shader);

4
src/compiler/nir/nir_opt_load_store_vectorize.c
View File

@@ -1359,12 +1359,12 @@ nir_opt_load_store_vectorize(nir_shader *shader, nir_variable_mode modes,
ctx->callback = callback;
ctx->robust_modes = robust_modes;
nir_index_vars(shader, NULL, modes);
nir_shader_index_vars(shader, modes);
nir_foreach_function(function, shader) {
if (function->impl) {
if (modes & nir_var_function_temp)
nir_index_vars(shader, function->impl, nir_var_function_temp);
nir_function_impl_index_vars(function->impl);
nir_foreach_block(block, function->impl)
progress |= process_block(function->impl, ctx, block);