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nir/opt_dce: fixup for new foreach_block()

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Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Connor Abbott 2016-04-08 17:43:48 -04:00 • committed by Jason Ekstrand
parent 3afb3be674
commit ddc6639f85
1 changed files with 13 additions and 20 deletions
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33
src/compiler/nir/nir_opt_dce.c
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@ -113,10 +113,8 @@ init_instr(nir_instr *instr, struct exec_list *worklist)
}
static bool
init_block_cb(nir_block *block, void *_state)
init_block(nir_block *block, struct exec_list *worklist)
{
struct exec_list *worklist = (struct exec_list *) _state;
nir_foreach_instr(block, instr)
init_instr(instr, worklist);
@ -130,28 +128,15 @@ init_block_cb(nir_block *block, void *_state)
return true;
}
static bool
delete_block_cb(nir_block *block, void *_state)
{
bool *progress = (bool *) _state;
nir_foreach_instr_safe(block, instr) {
if (!instr->pass_flags) {
nir_instr_remove(instr);
*progress = true;
}
}
return true;
}
static bool
nir_opt_dce_impl(nir_function_impl *impl)
{
struct exec_list *worklist = ralloc(NULL, struct exec_list);
exec_list_make_empty(worklist);
nir_foreach_block_call(impl, init_block_cb, worklist);
nir_foreach_block(block, impl) {
init_block(block, worklist);
}
while (!exec_list_is_empty(worklist)) {
nir_instr *instr = worklist_pop(worklist);
@ -161,7 +146,15 @@ nir_opt_dce_impl(nir_function_impl *impl)
ralloc_free(worklist);
bool progress = false;
nir_foreach_block_call(impl, delete_block_cb, &progress);
nir_foreach_block(block, impl) {
nir_foreach_instr_safe(block, instr) {
if (!instr->pass_flags) {
nir_instr_remove(instr);
progress = true;
}
}
}
if (progress)
nir_metadata_preserve(impl, nir_metadata_block_index |