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nir: Report progress from nir_split_var_copies().

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Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
(cherry picked from commit dc18b9357b)
This commit is contained in:
Kenneth Graunke 2015-09-17 12:33:36 -07:00 • committed by Emil Velikov
parent aa739dff86
commit 800217a165
2 changed files with 13 additions and 4 deletions
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2
src/glsl/nir/nir.h
View file

@ -1629,7 +1629,7 @@ void nir_dump_dom_frontier(nir_shader *shader, FILE *fp);
void nir_dump_cfg_impl(nir_function_impl *impl, FILE *fp);
void nir_dump_cfg(nir_shader *shader, FILE *fp);
void nir_split_var_copies(nir_shader *shader);
bool nir_split_var_copies(nir_shader *shader);
void nir_lower_var_copy_instr(nir_intrinsic_instr *copy, void *mem_ctx);
void nir_lower_var_copies(nir_shader *shader);

15
src/glsl/nir/nir_split_var_copies.c
View file

@ -64,6 +64,7 @@
struct split_var_copies_state {
void *mem_ctx;
void *dead_ctx;
bool progress;
};
static nir_deref *
@ -198,6 +199,7 @@ split_var_copy_instr(nir_intrinsic_instr *old_copy,
* remove the old one later.
*/
nir_instr_insert_after(&old_copy->instr, &new_copy->instr);
state->progress = true;
}
break;
@ -256,24 +258,31 @@ split_var_copies_block(nir_block *block, void *void_state)
return true;
}
static void
static bool
split_var_copies_impl(nir_function_impl *impl)
{
struct split_var_copies_state state;
state.mem_ctx = ralloc_parent(impl);
state.dead_ctx = ralloc_context(NULL);
state.progress = false;
nir_foreach_block(impl, split_var_copies_block, &state);
ralloc_free(state.dead_ctx);
return state.progress;
}
void
bool
nir_split_var_copies(nir_shader *shader)
{
bool progress = false;
nir_foreach_overload(shader, overload) {
if (overload->impl)
split_var_copies_impl(overload->impl);
progress = split_var_copies_impl(overload->impl) || progress;
}
return progress;
}