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intel/brw: Pull dead_code_eliminate out of fs_visitor

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Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26887>
This commit is contained in:
Caio Oliveira 2024-01-03 11:08:36 -08:00 • committed by Marge Bot
parent 1bd175f458
commit 59bff8adf4
3 changed files with 14 additions and 12 deletions
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12
src/intel/compiler/brw_fs.cpp
View file

@ -5668,7 +5668,7 @@ fs_visitor::optimize()
* encountered. Wipe those away before algebraic optimizations and
* especially copy propagation can mix things up.
*/
OPT(dead_code_eliminate);
OPT(brw_fs_opt_dead_code_eliminate, *this);
OPT(remove_extra_rounding_modes);
@ -5682,7 +5682,7 @@ fs_visitor::optimize()
OPT(brw_fs_opt_copy_propagation, *this);
OPT(opt_predicated_break, this);
OPT(brw_fs_opt_cmod_propagation, *this);
OPT(dead_code_eliminate);
OPT(brw_fs_opt_dead_code_eliminate, *this);
OPT(opt_peephole_sel);
OPT(dead_control_flow_eliminate, this);
OPT(brw_fs_opt_saturate_propagation, *this);
@ -5697,7 +5697,7 @@ fs_visitor::optimize()
if (OPT(lower_pack)) {
OPT(register_coalesce);
OPT(dead_code_eliminate);
OPT(brw_fs_opt_dead_code_eliminate, *this);
}
OPT(lower_simd_width);
@ -5729,7 +5729,7 @@ fs_visitor::optimize()
*/
OPT(opt_cse);
OPT(register_coalesce);
OPT(dead_code_eliminate);
OPT(brw_fs_opt_dead_code_eliminate, *this);
OPT(opt_peephole_sel);
}
@ -5744,7 +5744,7 @@ fs_visitor::optimize()
OPT(register_coalesce);
OPT(lower_simd_width);
OPT(dead_code_eliminate);
OPT(brw_fs_opt_dead_code_eliminate, *this);
}
OPT(opt_combine_constants);
@ -5763,7 +5763,7 @@ fs_visitor::optimize()
if (progress) {
if (OPT(brw_fs_opt_copy_propagation, *this))
OPT(opt_algebraic);
OPT(dead_code_eliminate);
OPT(brw_fs_opt_dead_code_eliminate, *this);
OPT(lower_simd_width);
}

2
src/intel/compiler/brw_fs.h
View file

@ -276,7 +276,6 @@ public:
bool opt_split_sends();
bool register_coalesce();
bool eliminate_find_live_channel();
bool dead_code_eliminate();
bool remove_extra_rounding_modes();
fs_instruction_scheduler *prepare_scheduler(void *mem_ctx);
@ -625,6 +624,7 @@ void nir_to_brw(fs_visitor *s);
bool brw_fs_opt_cmod_propagation(fs_visitor &s);
bool brw_fs_opt_copy_propagation(fs_visitor &s);
bool brw_fs_opt_dead_code_eliminate(fs_visitor &s);
bool brw_fs_opt_saturate_propagation(fs_visitor &s);
#endif /* BRW_FS_H */

12
src/intel/compiler/brw_fs_dead_code_eliminate.cpp
View file

@ -73,16 +73,18 @@ can_omit_write(const fs_inst *inst)
}
bool
fs_visitor::dead_code_eliminate()
brw_fs_opt_dead_code_eliminate(fs_visitor &s)
{
const intel_device_info *devinfo = s.devinfo;
bool progress = false;
const fs_live_variables &live_vars = live_analysis.require();
const fs_live_variables &live_vars = s.live_analysis.require();
int num_vars = live_vars.num_vars;
BITSET_WORD *live = rzalloc_array(NULL, BITSET_WORD, BITSET_WORDS(num_vars));
BITSET_WORD *flag_live = rzalloc_array(NULL, BITSET_WORD, 1);
foreach_block_reverse_safe(block, cfg) {
foreach_block_reverse_safe(block, s.cfg) {
memcpy(live, live_vars.block_data[block->num].liveout,
sizeof(BITSET_WORD) * BITSET_WORDS(num_vars));
memcpy(flag_live, live_vars.block_data[block->num].flag_liveout,
@ -140,13 +142,13 @@ fs_visitor::dead_code_eliminate()
}
}
cfg->adjust_block_ips();
s.cfg->adjust_block_ips();
ralloc_free(live);
ralloc_free(flag_live);
if (progress)
invalidate_analysis(DEPENDENCY_INSTRUCTIONS);
s.invalidate_analysis(DEPENDENCY_INSTRUCTIONS);
return progress;
}