Don't support shape transitions for now.
This lets us constant-fold common monomorphic cases.
I made a special kind of `ProfiledType` that looks at specific objects, not just their classes/shapes (https://github.com/ruby/ruby/pull/15051). Then I profiled some of our benchmarks.
For lobsters:
```
Top-6 invokeblock handler (100.0% of total 1,064,155):
megamorphic: 494,931 (46.5%)
monomorphic_iseq: 337,171 (31.7%)
polymorphic: 113,381 (10.7%)
monomorphic_ifunc: 52,260 ( 4.9%)
monomorphic_other: 38,970 ( 3.7%)
no_profiles: 27,442 ( 2.6%)
```
For railsbench:
```
Top-6 invokeblock handler (100.0% of total 2,529,104):
monomorphic_iseq: 834,452 (33.0%)
megamorphic: 818,347 (32.4%)
polymorphic: 632,273 (25.0%)
monomorphic_ifunc: 224,243 ( 8.9%)
monomorphic_other: 19,595 ( 0.8%)
no_profiles: 194 ( 0.0%)
```
For shipit:
```
Top-6 invokeblock handler (100.0% of total 2,104,148):
megamorphic: 1,269,889 (60.4%)
polymorphic: 411,475 (19.6%)
no_profiles: 173,367 ( 8.2%)
monomorphic_other: 118,619 ( 5.6%)
monomorphic_iseq: 84,891 ( 4.0%)
monomorphic_ifunc: 45,907 ( 2.2%)
```
Seems like a monomorphic case for a specific ISEQ actually isn't a bad way of going about this, at least to start...
Since `Send` has a block iseq, I updated `CCallWithFrame` to take an optional `blockiseq` as well, and then generate `CCallWithFrame` for `Send` when the condition is right.
## Stats
`liquid-render` Benchmark
| Metric | Before | After | Change |
|----------------------|--------------------|--------------------|--------------------- |
| send_no_profiles | 3,209,418 (34.1%) | 4,119 (0.1%) | -3,205,299 (-99.9%) |
| dynamic_send_count | 9,410,758 (23.1%) | 6,459,678 (15.9%) | -2,951,080 (-31.4%) |
| optimized_send_count | 31,269,388 (76.9%) | 34,220,474 (84.1%) | +2,951,086 (+9.4%) |
`lobsters` Benchmark
| Metric | Before | After | Change |
|----------------------|------------|------------|---------------------|
| send_no_profiles | 10,769,052 | 2,902,865 | -7,866,187 (-73.0%) |
| dynamic_send_count | 45,673,185 | 42,880,160 | -2,793,025 (-6.1%) |
| optimized_send_count | 75,142,407 | 78,378,514 | +3,236,107 (+4.3%) |
### `liquid-render` Before
<details>
```
Average of last 22, non-warmup iters: 262ms
***ZJIT: Printing ZJIT statistics on exit***
Top-20 not inlined C methods (96.9% of total 10,370,809):
Kernel#respond_to?: 5,069,204 (48.9%)
Hash#key?: 2,394,488 (23.1%)
Set#include?: 778,429 ( 7.5%)
String#===: 326,134 ( 3.1%)
String#<<: 203,231 ( 2.0%)
Integer#<<: 166,768 ( 1.6%)
Kernel#is_a?: 164,272 ( 1.6%)
Kernel#format: 124,262 ( 1.2%)
Integer#/: 124,262 ( 1.2%)
Array#<<: 115,325 ( 1.1%)
Regexp.last_match: 94,862 ( 0.9%)
Hash#[]=: 88,485 ( 0.9%)
String#start_with?: 55,933 ( 0.5%)
CGI::EscapeExt#escapeHTML: 55,471 ( 0.5%)
Array#shift: 55,298 ( 0.5%)
Regexp#===: 48,928 ( 0.5%)
String#=~: 48,477 ( 0.5%)
Array#unshift: 47,331 ( 0.5%)
String#empty?: 42,870 ( 0.4%)
Array#push: 41,215 ( 0.4%)
Top-20 not annotated C methods (97.1% of total 10,394,421):
Kernel#respond_to?: 5,069,204 (48.8%)
Hash#key?: 2,394,488 (23.0%)
Set#include?: 778,429 ( 7.5%)
String#===: 326,134 ( 3.1%)
Kernel#is_a?: 208,664 ( 2.0%)
String#<<: 203,231 ( 2.0%)
Integer#<<: 166,768 ( 1.6%)
Integer#/: 124,262 ( 1.2%)
Kernel#format: 124,262 ( 1.2%)
Array#<<: 115,325 ( 1.1%)
Regexp.last_match: 94,862 ( 0.9%)
Hash#[]=: 88,485 ( 0.9%)
String#start_with?: 55,933 ( 0.5%)
CGI::EscapeExt#escapeHTML: 55,471 ( 0.5%)
Array#shift: 55,298 ( 0.5%)
Regexp#===: 48,928 ( 0.5%)
String#=~: 48,477 ( 0.5%)
Array#unshift: 47,331 ( 0.5%)
String#empty?: 42,870 ( 0.4%)
Array#push: 41,215 ( 0.4%)
Top-2 not optimized method types for send (100.0% of total 2,382):
cfunc: 1,196 (50.2%)
iseq: 1,186 (49.8%)
Top-4 not optimized method types for send_without_block (100.0% of total 2,561,006):
iseq: 2,442,091 (95.4%)
optimized: 118,882 ( 4.6%)
alias: 20 ( 0.0%)
null: 13 ( 0.0%)
Top-9 not optimized instructions (100.0% of total 685,128):
invokeblock: 227,376 (33.2%)
opt_neq: 166,471 (24.3%)
opt_and: 166,471 (24.3%)
opt_eq: 66,721 ( 9.7%)
invokesuper: 39,363 ( 5.7%)
opt_le: 16,278 ( 2.4%)
opt_minus: 1,574 ( 0.2%)
opt_send_without_block: 772 ( 0.1%)
opt_or: 102 ( 0.0%)
Top-8 send fallback reasons (100.0% of total 9,410,758):
send_no_profiles: 3,209,418 (34.1%)
send_without_block_polymorphic: 2,858,558 (30.4%)
send_without_block_not_optimized_method_type: 2,561,006 (27.2%)
not_optimized_instruction: 685,128 ( 7.3%)
send_without_block_no_profiles: 91,913 ( 1.0%)
send_not_optimized_method_type: 2,382 ( 0.0%)
obj_to_string_not_string: 2,352 ( 0.0%)
send_without_block_cfunc_array_variadic: 1 ( 0.0%)
Top-3 unhandled YARV insns (100.0% of total 83,682):
getclassvariable: 83,431 (99.7%)
once: 137 ( 0.2%)
getconstant: 114 ( 0.1%)
Top-3 compile error reasons (100.0% of total 5,431,910):
register_spill_on_alloc: 4,665,393 (85.9%)
exception_handler: 766,347 (14.1%)
register_spill_on_ccall: 170 ( 0.0%)
Top-11 side exit reasons (100.0% of total 14,635,508):
compile_error: 5,431,910 (37.1%)
guard_shape_failure: 3,436,341 (23.5%)
guard_type_failure: 2,545,791 (17.4%)
unhandled_splat: 2,162,907 (14.8%)
unhandled_kwarg: 952,568 ( 6.5%)
unhandled_yarv_insn: 83,682 ( 0.6%)
unhandled_hir_insn: 19,112 ( 0.1%)
patchpoint_stable_constant_names: 1,608 ( 0.0%)
obj_to_string_fallback: 902 ( 0.0%)
patchpoint_method_redefined: 599 ( 0.0%)
block_param_proxy_not_iseq_or_ifunc: 88 ( 0.0%)
send_count: 40,680,153
dynamic_send_count: 9,410,758 (23.1%)
optimized_send_count: 31,269,395 (76.9%)
iseq_optimized_send_count: 13,886,902 (34.1%)
inline_cfunc_optimized_send_count: 7,011,684 (17.2%)
non_variadic_cfunc_optimized_send_count: 4,670,333 (11.5%)
variadic_cfunc_optimized_send_count: 5,700,476 (14.0%)
dynamic_getivar_count: 1,144,613
dynamic_setivar_count: 950,830
compiled_iseq_count: 402
failed_iseq_count: 48
compile_time: 976ms
profile_time: 3,223ms
gc_time: 22ms
invalidation_time: 0ms
vm_write_pc_count: 37,744,491
vm_write_sp_count: 37,511,865
vm_write_locals_count: 37,511,865
vm_write_stack_count: 37,511,865
vm_write_to_parent_iseq_local_count: 558,177
vm_read_from_parent_iseq_local_count: 14,317,032
code_region_bytes: 2,211,840
side_exit_count: 14,635,508
total_insn_count: 476,097,972
vm_insn_count: 253,795,154
zjit_insn_count: 222,302,818
ratio_in_zjit: 46.7%
```
</details>
### `liquid-render` After
<details>
```
Average of last 21, non-warmup iters: 272ms
***ZJIT: Printing ZJIT statistics on exit***
Top-20 not inlined C methods (96.8% of total 10,093,966):
Kernel#respond_to?: 4,932,224 (48.9%)
Hash#key?: 2,329,928 (23.1%)
Set#include?: 757,389 ( 7.5%)
String#===: 317,494 ( 3.1%)
String#<<: 197,831 ( 2.0%)
Integer#<<: 162,268 ( 1.6%)
Kernel#is_a?: 159,892 ( 1.6%)
Kernel#format: 120,902 ( 1.2%)
Integer#/: 120,902 ( 1.2%)
Array#<<: 112,225 ( 1.1%)
Regexp.last_match: 92,382 ( 0.9%)
Hash#[]=: 86,145 ( 0.9%)
String#start_with?: 54,953 ( 0.5%)
Array#shift: 54,038 ( 0.5%)
CGI::EscapeExt#escapeHTML: 53,971 ( 0.5%)
Regexp#===: 47,848 ( 0.5%)
String#=~: 47,237 ( 0.5%)
Array#unshift: 46,051 ( 0.5%)
String#empty?: 41,750 ( 0.4%)
Array#push: 40,115 ( 0.4%)
Top-20 not annotated C methods (97.1% of total 10,116,938):
Kernel#respond_to?: 4,932,224 (48.8%)
Hash#key?: 2,329,928 (23.0%)
Set#include?: 757,389 ( 7.5%)
String#===: 317,494 ( 3.1%)
Kernel#is_a?: 203,084 ( 2.0%)
String#<<: 197,831 ( 2.0%)
Integer#<<: 162,268 ( 1.6%)
Kernel#format: 120,902 ( 1.2%)
Integer#/: 120,902 ( 1.2%)
Array#<<: 112,225 ( 1.1%)
Regexp.last_match: 92,382 ( 0.9%)
Hash#[]=: 86,145 ( 0.9%)
String#start_with?: 54,953 ( 0.5%)
Array#shift: 54,038 ( 0.5%)
CGI::EscapeExt#escapeHTML: 53,971 ( 0.5%)
Regexp#===: 47,848 ( 0.5%)
String#=~: 47,237 ( 0.5%)
Array#unshift: 46,051 ( 0.5%)
String#empty?: 41,750 ( 0.4%)
Array#push: 40,115 ( 0.4%)
Top-2 not optimized method types for send (100.0% of total 182,938):
iseq: 178,414 (97.5%)
cfunc: 4,524 ( 2.5%)
Top-4 not optimized method types for send_without_block (100.0% of total 2,492,246):
iseq: 2,376,511 (95.4%)
optimized: 115,702 ( 4.6%)
alias: 20 ( 0.0%)
null: 13 ( 0.0%)
Top-9 not optimized instructions (100.0% of total 667,727):
invokeblock: 221,375 (33.2%)
opt_neq: 161,971 (24.3%)
opt_and: 161,971 (24.3%)
opt_eq: 64,921 ( 9.7%)
invokesuper: 39,243 ( 5.9%)
opt_le: 15,838 ( 2.4%)
opt_minus: 1,534 ( 0.2%)
opt_send_without_block: 772 ( 0.1%)
opt_or: 102 ( 0.0%)
Top-9 send fallback reasons (100.0% of total 6,287,956):
send_without_block_polymorphic: 2,782,058 (44.2%)
send_without_block_not_optimized_method_type: 2,492,246 (39.6%)
not_optimized_instruction: 667,727 (10.6%)
send_not_optimized_method_type: 182,938 ( 2.9%)
send_without_block_no_profiles: 89,613 ( 1.4%)
send_polymorphic: 66,962 ( 1.1%)
send_no_profiles: 4,059 ( 0.1%)
obj_to_string_not_string: 2,352 ( 0.0%)
send_without_block_cfunc_array_variadic: 1 ( 0.0%)
Top-3 unhandled YARV insns (100.0% of total 81,482):
getclassvariable: 81,231 (99.7%)
once: 137 ( 0.2%)
getconstant: 114 ( 0.1%)
Top-3 compile error reasons (100.0% of total 5,286,310):
register_spill_on_alloc: 4,540,413 (85.9%)
exception_handler: 745,727 (14.1%)
register_spill_on_ccall: 170 ( 0.0%)
Top-12 side exit reasons (100.0% of total 14,244,881):
compile_error: 5,286,310 (37.1%)
guard_shape_failure: 3,346,873 (23.5%)
guard_type_failure: 2,477,071 (17.4%)
unhandled_splat: 2,104,447 (14.8%)
unhandled_kwarg: 926,828 ( 6.5%)
unhandled_yarv_insn: 81,482 ( 0.6%)
unhandled_hir_insn: 18,672 ( 0.1%)
patchpoint_stable_constant_names: 1,608 ( 0.0%)
obj_to_string_fallback: 902 ( 0.0%)
patchpoint_method_redefined: 599 ( 0.0%)
block_param_proxy_not_iseq_or_ifunc: 88 ( 0.0%)
interrupt: 1 ( 0.0%)
send_count: 39,591,410
dynamic_send_count: 6,287,956 (15.9%)
optimized_send_count: 33,303,454 (84.1%)
iseq_optimized_send_count: 13,514,283 (34.1%)
inline_cfunc_optimized_send_count: 6,823,745 (17.2%)
non_variadic_cfunc_optimized_send_count: 7,417,432 (18.7%)
variadic_cfunc_optimized_send_count: 5,547,994 (14.0%)
dynamic_getivar_count: 1,110,647
dynamic_setivar_count: 927,309
compiled_iseq_count: 403
failed_iseq_count: 48
compile_time: 968ms
profile_time: 3,547ms
gc_time: 22ms
invalidation_time: 0ms
vm_write_pc_count: 36,735,108
vm_write_sp_count: 36,508,262
vm_write_locals_count: 36,508,262
vm_write_stack_count: 36,508,262
vm_write_to_parent_iseq_local_count: 543,097
vm_read_from_parent_iseq_local_count: 13,930,672
code_region_bytes: 2,228,224
side_exit_count: 14,244,881
total_insn_count: 463,357,969
vm_insn_count: 247,003,727
zjit_insn_count: 216,354,242
ratio_in_zjit: 46.7%
```
</details>
### `lobsters` Before
<details>
```
Average of last 10, non-warmup iters: 898ms
***ZJIT: Printing ZJIT statistics on exit***
Top-20 not inlined C methods (61.3% of total 19,495,906):
String#<<: 1,764,437 ( 9.1%)
Kernel#is_a?: 1,615,120 ( 8.3%)
Hash#[]=: 1,159,455 ( 5.9%)
Regexp#match?: 777,496 ( 4.0%)
String#empty?: 722,953 ( 3.7%)
Hash#key?: 685,258 ( 3.5%)
Kernel#respond_to?: 602,017 ( 3.1%)
TrueClass#===: 447,671 ( 2.3%)
FalseClass#===: 439,276 ( 2.3%)
Array#include?: 426,758 ( 2.2%)
Kernel#block_given?: 405,271 ( 2.1%)
Hash#fetch: 382,302 ( 2.0%)
ObjectSpace::WeakKeyMap#[]: 356,654 ( 1.8%)
String#start_with?: 353,793 ( 1.8%)
Kernel#kind_of?: 340,341 ( 1.7%)
Kernel#dup: 328,162 ( 1.7%)
String.new: 306,667 ( 1.6%)
String#==: 287,549 ( 1.5%)
BasicObject#!=: 284,642 ( 1.5%)
String#length: 256,070 ( 1.3%)
Top-20 not annotated C methods (62.4% of total 19,796,172):
Kernel#is_a?: 1,993,676 (10.1%)
String#<<: 1,764,437 ( 8.9%)
Hash#[]=: 1,159,634 ( 5.9%)
Regexp#match?: 777,496 ( 3.9%)
String#empty?: 738,030 ( 3.7%)
Hash#key?: 685,258 ( 3.5%)
Kernel#respond_to?: 602,017 ( 3.0%)
TrueClass#===: 447,671 ( 2.3%)
FalseClass#===: 439,276 ( 2.2%)
Array#include?: 426,758 ( 2.2%)
Kernel#block_given?: 425,813 ( 2.2%)
Hash#fetch: 382,302 ( 1.9%)
ObjectSpace::WeakKeyMap#[]: 356,654 ( 1.8%)
String#start_with?: 353,793 ( 1.8%)
Kernel#kind_of?: 340,375 ( 1.7%)
Kernel#dup: 328,169 ( 1.7%)
String.new: 306,667 ( 1.5%)
String#==: 293,520 ( 1.5%)
BasicObject#!=: 284,825 ( 1.4%)
String#length: 256,070 ( 1.3%)
Top-2 not optimized method types for send (100.0% of total 115,007):
cfunc: 76,172 (66.2%)
iseq: 38,835 (33.8%)
Top-6 not optimized method types for send_without_block (100.0% of total 8,003,641):
iseq: 3,999,211 (50.0%)
bmethod: 1,750,271 (21.9%)
optimized: 1,653,426 (20.7%)
alias: 591,342 ( 7.4%)
null: 8,174 ( 0.1%)
cfunc: 1,217 ( 0.0%)
Top-13 not optimized instructions (100.0% of total 7,590,826):
invokesuper: 4,335,446 (57.1%)
invokeblock: 1,329,215 (17.5%)
sendforward: 841,463 (11.1%)
opt_eq: 810,614 (10.7%)
opt_plus: 141,773 ( 1.9%)
opt_minus: 52,270 ( 0.7%)
opt_send_without_block: 43,248 ( 0.6%)
opt_neq: 15,047 ( 0.2%)
opt_mult: 13,824 ( 0.2%)
opt_or: 7,451 ( 0.1%)
opt_lt: 348 ( 0.0%)
opt_ge: 91 ( 0.0%)
opt_gt: 36 ( 0.0%)
Top-9 send fallback reasons (100.0% of total 45,673,212):
send_without_block_polymorphic: 17,390,335 (38.1%)
send_no_profiles: 10,769,053 (23.6%)
send_without_block_not_optimized_method_type: 8,003,641 (17.5%)
not_optimized_instruction: 7,590,826 (16.6%)
send_without_block_no_profiles: 1,757,109 ( 3.8%)
send_not_optimized_method_type: 115,007 ( 0.3%)
send_without_block_cfunc_array_variadic: 31,149 ( 0.1%)
obj_to_string_not_string: 15,518 ( 0.0%)
send_without_block_direct_too_many_args: 574 ( 0.0%)
Top-9 unhandled YARV insns (100.0% of total 1,242,228):
expandarray: 622,203 (50.1%)
checkkeyword: 316,111 (25.4%)
getclassvariable: 120,540 ( 9.7%)
getblockparam: 88,480 ( 7.1%)
invokesuperforward: 78,842 ( 6.3%)
opt_duparray_send: 14,149 ( 1.1%)
getconstant: 1,588 ( 0.1%)
checkmatch: 288 ( 0.0%)
once: 27 ( 0.0%)
Top-3 compile error reasons (100.0% of total 6,769,693):
register_spill_on_alloc: 6,188,305 (91.4%)
register_spill_on_ccall: 347,108 ( 5.1%)
exception_handler: 234,280 ( 3.5%)
Top-17 side exit reasons (100.0% of total 20,142,827):
compile_error: 6,769,693 (33.6%)
guard_type_failure: 5,169,050 (25.7%)
guard_shape_failure: 3,726,362 (18.5%)
unhandled_yarv_insn: 1,242,228 ( 6.2%)
block_param_proxy_not_iseq_or_ifunc: 984,480 ( 4.9%)
unhandled_kwarg: 800,154 ( 4.0%)
unknown_newarray_send: 539,317 ( 2.7%)
patchpoint_stable_constant_names: 340,283 ( 1.7%)
unhandled_splat: 229,440 ( 1.1%)
unhandled_hir_insn: 147,351 ( 0.7%)
patchpoint_no_singleton_class: 128,856 ( 0.6%)
patchpoint_method_redefined: 32,718 ( 0.2%)
block_param_proxy_modified: 25,274 ( 0.1%)
patchpoint_no_ep_escape: 7,559 ( 0.0%)
obj_to_string_fallback: 24 ( 0.0%)
guard_type_not_failure: 22 ( 0.0%)
interrupt: 16 ( 0.0%)
send_count: 120,815,640
dynamic_send_count: 45,673,212 (37.8%)
optimized_send_count: 75,142,428 (62.2%)
iseq_optimized_send_count: 32,188,039 (26.6%)
inline_cfunc_optimized_send_count: 23,458,483 (19.4%)
non_variadic_cfunc_optimized_send_count: 14,809,797 (12.3%)
variadic_cfunc_optimized_send_count: 4,686,109 ( 3.9%)
dynamic_getivar_count: 13,023,437
dynamic_setivar_count: 12,311,158
compiled_iseq_count: 4,806
failed_iseq_count: 466
compile_time: 8,943ms
profile_time: 99ms
gc_time: 45ms
invalidation_time: 239ms
vm_write_pc_count: 113,652,291
vm_write_sp_count: 111,209,623
vm_write_locals_count: 111,209,623
vm_write_stack_count: 111,209,623
vm_write_to_parent_iseq_local_count: 516,800
vm_read_from_parent_iseq_local_count: 11,225,587
code_region_bytes: 22,609,920
side_exit_count: 20,142,827
total_insn_count: 926,088,942
vm_insn_count: 297,636,255
zjit_insn_count: 628,452,687
ratio_in_zjit: 67.9%
```
</details>
### `lobsters` After
<details>
```
Average of last 10, non-warmup iters: 919ms
***ZJIT: Printing ZJIT statistics on exit***
Top-20 not inlined C methods (61.3% of total 19,495,868):
String#<<: 1,764,437 ( 9.1%)
Kernel#is_a?: 1,615,110 ( 8.3%)
Hash#[]=: 1,159,455 ( 5.9%)
Regexp#match?: 777,496 ( 4.0%)
String#empty?: 722,953 ( 3.7%)
Hash#key?: 685,258 ( 3.5%)
Kernel#respond_to?: 602,016 ( 3.1%)
TrueClass#===: 447,671 ( 2.3%)
FalseClass#===: 439,276 ( 2.3%)
Array#include?: 426,758 ( 2.2%)
Kernel#block_given?: 405,271 ( 2.1%)
Hash#fetch: 382,302 ( 2.0%)
ObjectSpace::WeakKeyMap#[]: 356,654 ( 1.8%)
String#start_with?: 353,793 ( 1.8%)
Kernel#kind_of?: 340,341 ( 1.7%)
Kernel#dup: 328,162 ( 1.7%)
String.new: 306,667 ( 1.6%)
String#==: 287,545 ( 1.5%)
BasicObject#!=: 284,642 ( 1.5%)
String#length: 256,070 ( 1.3%)
Top-20 not annotated C methods (62.4% of total 19,796,134):
Kernel#is_a?: 1,993,666 (10.1%)
String#<<: 1,764,437 ( 8.9%)
Hash#[]=: 1,159,634 ( 5.9%)
Regexp#match?: 777,496 ( 3.9%)
String#empty?: 738,030 ( 3.7%)
Hash#key?: 685,258 ( 3.5%)
Kernel#respond_to?: 602,016 ( 3.0%)
TrueClass#===: 447,671 ( 2.3%)
FalseClass#===: 439,276 ( 2.2%)
Array#include?: 426,758 ( 2.2%)
Kernel#block_given?: 425,813 ( 2.2%)
Hash#fetch: 382,302 ( 1.9%)
ObjectSpace::WeakKeyMap#[]: 356,654 ( 1.8%)
String#start_with?: 353,793 ( 1.8%)
Kernel#kind_of?: 340,375 ( 1.7%)
Kernel#dup: 328,169 ( 1.7%)
String.new: 306,667 ( 1.5%)
String#==: 293,516 ( 1.5%)
BasicObject#!=: 284,825 ( 1.4%)
String#length: 256,070 ( 1.3%)
Top-4 not optimized method types for send (100.0% of total 4,749,678):
iseq: 2,563,391 (54.0%)
cfunc: 2,064,888 (43.5%)
alias: 118,577 ( 2.5%)
null: 2,822 ( 0.1%)
Top-6 not optimized method types for send_without_block (100.0% of total 8,003,641):
iseq: 3,999,211 (50.0%)
bmethod: 1,750,271 (21.9%)
optimized: 1,653,426 (20.7%)
alias: 591,342 ( 7.4%)
null: 8,174 ( 0.1%)
cfunc: 1,217 ( 0.0%)
Top-13 not optimized instructions (100.0% of total 7,590,818):
invokesuper: 4,335,442 (57.1%)
invokeblock: 1,329,215 (17.5%)
sendforward: 841,463 (11.1%)
opt_eq: 810,610 (10.7%)
opt_plus: 141,773 ( 1.9%)
opt_minus: 52,270 ( 0.7%)
opt_send_without_block: 43,248 ( 0.6%)
opt_neq: 15,047 ( 0.2%)
opt_mult: 13,824 ( 0.2%)
opt_or: 7,451 ( 0.1%)
opt_lt: 348 ( 0.0%)
opt_ge: 91 ( 0.0%)
opt_gt: 36 ( 0.0%)
Top-10 send fallback reasons (100.0% of total 43,152,037):
send_without_block_polymorphic: 17,390,322 (40.3%)
send_without_block_not_optimized_method_type: 8,003,641 (18.5%)
not_optimized_instruction: 7,590,818 (17.6%)
send_not_optimized_method_type: 4,749,678 (11.0%)
send_no_profiles: 2,893,666 ( 6.7%)
send_without_block_no_profiles: 1,757,109 ( 4.1%)
send_polymorphic: 719,562 ( 1.7%)
send_without_block_cfunc_array_variadic: 31,149 ( 0.1%)
obj_to_string_not_string: 15,518 ( 0.0%)
send_without_block_direct_too_many_args: 574 ( 0.0%)
Top-9 unhandled YARV insns (100.0% of total 1,242,215):
expandarray: 622,203 (50.1%)
checkkeyword: 316,111 (25.4%)
getclassvariable: 120,540 ( 9.7%)
getblockparam: 88,467 ( 7.1%)
invokesuperforward: 78,842 ( 6.3%)
opt_duparray_send: 14,149 ( 1.1%)
getconstant: 1,588 ( 0.1%)
checkmatch: 288 ( 0.0%)
once: 27 ( 0.0%)
Top-3 compile error reasons (100.0% of total 6,769,688):
register_spill_on_alloc: 6,188,305 (91.4%)
register_spill_on_ccall: 347,108 ( 5.1%)
exception_handler: 234,275 ( 3.5%)
Top-17 side exit reasons (100.0% of total 20,144,372):
compile_error: 6,769,688 (33.6%)
guard_type_failure: 5,169,204 (25.7%)
guard_shape_failure: 3,726,374 (18.5%)
unhandled_yarv_insn: 1,242,215 ( 6.2%)
block_param_proxy_not_iseq_or_ifunc: 984,480 ( 4.9%)
unhandled_kwarg: 800,154 ( 4.0%)
unknown_newarray_send: 539,317 ( 2.7%)
patchpoint_stable_constant_names: 340,283 ( 1.7%)
unhandled_splat: 229,440 ( 1.1%)
unhandled_hir_insn: 147,351 ( 0.7%)
patchpoint_no_singleton_class: 130,252 ( 0.6%)
patchpoint_method_redefined: 32,716 ( 0.2%)
block_param_proxy_modified: 25,274 ( 0.1%)
patchpoint_no_ep_escape: 7,559 ( 0.0%)
obj_to_string_fallback: 24 ( 0.0%)
guard_type_not_failure: 22 ( 0.0%)
interrupt: 19 ( 0.0%)
send_count: 120,812,030
dynamic_send_count: 43,152,037 (35.7%)
optimized_send_count: 77,659,993 (64.3%)
iseq_optimized_send_count: 32,187,900 (26.6%)
inline_cfunc_optimized_send_count: 23,458,491 (19.4%)
non_variadic_cfunc_optimized_send_count: 17,327,499 (14.3%)
variadic_cfunc_optimized_send_count: 4,686,103 ( 3.9%)
dynamic_getivar_count: 13,023,424
dynamic_setivar_count: 12,310,991
compiled_iseq_count: 4,806
failed_iseq_count: 466
compile_time: 9,012ms
profile_time: 104ms
gc_time: 44ms
invalidation_time: 239ms
vm_write_pc_count: 113,648,665
vm_write_sp_count: 111,205,997
vm_write_locals_count: 111,205,997
vm_write_stack_count: 111,205,997
vm_write_to_parent_iseq_local_count: 516,800
vm_read_from_parent_iseq_local_count: 11,225,587
code_region_bytes: 23,052,288
side_exit_count: 20,144,372
total_insn_count: 926,090,214
vm_insn_count: 297,647,811
zjit_insn_count: 628,442,403
ratio_in_zjit: 67.9%
```
</details>
This is only really called a lot in the benchmark harness, as far as I can tell.
These bring `send_without_block_no_profiles` numbers down more.
On lobsters:
Before: send_without_block_no_profiles: 1,293,375
After: send_without_block_no_profiles: 998,724
all stats before:
```
***ZJIT: Printing ZJIT statistics on exit***
Top-20 not inlined C methods (71.1% of total 15,575,335):
Hash#[]: 4,519,774 (29.0%)
Kernel#is_a?: 1,030,758 ( 6.6%)
String#<<: 851,929 ( 5.5%)
Hash#[]=: 742,941 ( 4.8%)
Regexp#match?: 399,889 ( 2.6%)
String#empty?: 353,775 ( 2.3%)
Hash#key?: 349,129 ( 2.2%)
String#start_with?: 334,961 ( 2.2%)
Kernel#respond_to?: 316,527 ( 2.0%)
ObjectSpace::WeakKeyMap#[]: 238,978 ( 1.5%)
TrueClass#===: 235,771 ( 1.5%)
FalseClass#===: 231,144 ( 1.5%)
Array#include?: 211,381 ( 1.4%)
Hash#fetch: 204,702 ( 1.3%)
Kernel#block_given?: 181,792 ( 1.2%)
ActiveSupport::OrderedOptions#_get: 181,272 ( 1.2%)
Kernel#dup: 179,340 ( 1.2%)
BasicObject#!=: 175,997 ( 1.1%)
Class#new: 168,078 ( 1.1%)
Kernel#kind_of?: 165,600 ( 1.1%)
Top-20 not annotated C methods (71.6% of total 15,737,478):
Hash#[]: 4,519,784 (28.7%)
Kernel#is_a?: 1,212,649 ( 7.7%)
String#<<: 851,929 ( 5.4%)
Hash#[]=: 743,120 ( 4.7%)
Regexp#match?: 399,889 ( 2.5%)
String#empty?: 361,013 ( 2.3%)
Hash#key?: 349,129 ( 2.2%)
String#start_with?: 334,961 ( 2.1%)
Kernel#respond_to?: 316,527 ( 2.0%)
ObjectSpace::WeakKeyMap#[]: 238,978 ( 1.5%)
TrueClass#===: 235,771 ( 1.5%)
FalseClass#===: 231,144 ( 1.5%)
Array#include?: 211,381 ( 1.3%)
Hash#fetch: 204,702 ( 1.3%)
Kernel#block_given?: 191,661 ( 1.2%)
ActiveSupport::OrderedOptions#_get: 181,272 ( 1.2%)
Kernel#dup: 179,347 ( 1.1%)
BasicObject#!=: 176,181 ( 1.1%)
Class#new: 168,078 ( 1.1%)
Kernel#kind_of?: 165,634 ( 1.1%)
Top-2 not optimized method types for send (100.0% of total 72,318):
cfunc: 48,055 (66.4%)
iseq: 24,263 (33.6%)
Top-6 not optimized method types for send_without_block (100.0% of total 4,523,648):
iseq: 2,271,904 (50.2%)
bmethod: 985,636 (21.8%)
optimized: 949,702 (21.0%)
alias: 310,746 ( 6.9%)
null: 5,106 ( 0.1%)
cfunc: 554 ( 0.0%)
Top-13 not optimized instructions (100.0% of total 4,293,096):
invokesuper: 2,373,391 (55.3%)
invokeblock: 811,872 (18.9%)
sendforward: 505,448 (11.8%)
opt_eq: 451,754 (10.5%)
opt_plus: 74,403 ( 1.7%)
opt_minus: 36,225 ( 0.8%)
opt_send_without_block: 21,792 ( 0.5%)
opt_neq: 7,231 ( 0.2%)
opt_mult: 6,752 ( 0.2%)
opt_or: 3,753 ( 0.1%)
opt_lt: 348 ( 0.0%)
opt_ge: 91 ( 0.0%)
opt_gt: 36 ( 0.0%)
Top-9 send fallback reasons (100.0% of total 25,824,463):
send_without_block_polymorphic: 9,721,727 (37.6%)
send_no_profiles: 5,894,760 (22.8%)
send_without_block_not_optimized_method_type: 4,523,648 (17.5%)
not_optimized_instruction: 4,293,096 (16.6%)
send_without_block_no_profiles: 1,293,386 ( 5.0%)
send_not_optimized_method_type: 72,318 ( 0.3%)
send_without_block_cfunc_array_variadic: 15,134 ( 0.1%)
obj_to_string_not_string: 9,765 ( 0.0%)
send_without_block_direct_too_many_args: 629 ( 0.0%)
Top-9 unhandled YARV insns (100.0% of total 690,482):
expandarray: 328,490 (47.6%)
checkkeyword: 190,694 (27.6%)
getclassvariable: 59,901 ( 8.7%)
invokesuperforward: 49,503 ( 7.2%)
getblockparam: 48,651 ( 7.0%)
opt_duparray_send: 11,978 ( 1.7%)
getconstant: 952 ( 0.1%)
checkmatch: 290 ( 0.0%)
once: 23 ( 0.0%)
Top-3 compile error reasons (100.0% of total 3,752,502):
register_spill_on_alloc: 3,457,791 (92.1%)
register_spill_on_ccall: 176,348 ( 4.7%)
exception_handler: 118,363 ( 3.2%)
Top-14 side exit reasons (100.0% of total 10,860,787):
compile_error: 3,752,502 (34.6%)
guard_type_failure: 2,638,903 (24.3%)
guard_shape_failure: 1,917,195 (17.7%)
unhandled_yarv_insn: 690,482 ( 6.4%)
block_param_proxy_not_iseq_or_ifunc: 535,787 ( 4.9%)
unhandled_kwarg: 421,943 ( 3.9%)
patchpoint: 370,449 ( 3.4%)
unknown_newarray_send: 314,785 ( 2.9%)
unhandled_splat: 122,060 ( 1.1%)
unhandled_hir_insn: 76,396 ( 0.7%)
block_param_proxy_modified: 19,193 ( 0.2%)
obj_to_string_fallback: 566 ( 0.0%)
interrupt: 504 ( 0.0%)
guard_type_not_failure: 22 ( 0.0%)
send_count: 66,945,801
dynamic_send_count: 25,824,463 (38.6%)
optimized_send_count: 41,121,338 (61.4%)
iseq_optimized_send_count: 18,587,368 (27.8%)
inline_cfunc_optimized_send_count: 6,958,635 (10.4%)
non_variadic_cfunc_optimized_send_count: 12,911,155 (19.3%)
variadic_cfunc_optimized_send_count: 2,664,180 ( 4.0%)
dynamic_getivar_count: 7,365,975
dynamic_setivar_count: 7,245,897
compiled_iseq_count: 4,794
failed_iseq_count: 450
compile_time: 760ms
profile_time: 9ms
gc_time: 8ms
invalidation_time: 55ms
vm_write_pc_count: 64,284,053
vm_write_sp_count: 62,940,297
vm_write_locals_count: 62,940,297
vm_write_stack_count: 62,940,297
vm_write_to_parent_iseq_local_count: 292,446
vm_read_from_parent_iseq_local_count: 6,470,923
code_region_bytes: 23,019,520
side_exit_count: 10,860,787
total_insn_count: 517,576,320
vm_insn_count: 163,188,910
zjit_insn_count: 354,387,410
ratio_in_zjit: 68.5%
```
all stats after:
```
***ZJIT: Printing ZJIT statistics on exit***
Top-20 not inlined C methods (70.4% of total 15,740,856):
Hash#[]: 4,519,792 (28.7%)
Kernel#is_a?: 1,030,776 ( 6.5%)
String#<<: 851,940 ( 5.4%)
Hash#[]=: 742,914 ( 4.7%)
Regexp#match?: 399,887 ( 2.5%)
String#empty?: 353,775 ( 2.2%)
Hash#key?: 349,139 ( 2.2%)
String#start_with?: 334,961 ( 2.1%)
Kernel#respond_to?: 316,529 ( 2.0%)
ObjectSpace::WeakKeyMap#[]: 238,978 ( 1.5%)
TrueClass#===: 235,771 ( 1.5%)
FalseClass#===: 231,144 ( 1.5%)
Array#include?: 211,381 ( 1.3%)
Hash#fetch: 204,702 ( 1.3%)
Kernel#block_given?: 181,788 ( 1.2%)
ActiveSupport::OrderedOptions#_get: 181,272 ( 1.2%)
Kernel#dup: 179,341 ( 1.1%)
BasicObject#!=: 175,996 ( 1.1%)
Class#new: 168,079 ( 1.1%)
Kernel#kind_of?: 165,600 ( 1.1%)
Top-20 not annotated C methods (70.9% of total 15,902,999):
Hash#[]: 4,519,802 (28.4%)
Kernel#is_a?: 1,212,667 ( 7.6%)
String#<<: 851,940 ( 5.4%)
Hash#[]=: 743,093 ( 4.7%)
Regexp#match?: 399,887 ( 2.5%)
String#empty?: 361,013 ( 2.3%)
Hash#key?: 349,139 ( 2.2%)
String#start_with?: 334,961 ( 2.1%)
Kernel#respond_to?: 316,529 ( 2.0%)
ObjectSpace::WeakKeyMap#[]: 238,978 ( 1.5%)
TrueClass#===: 235,771 ( 1.5%)
FalseClass#===: 231,144 ( 1.5%)
Array#include?: 211,381 ( 1.3%)
Hash#fetch: 204,702 ( 1.3%)
Kernel#block_given?: 191,657 ( 1.2%)
ActiveSupport::OrderedOptions#_get: 181,272 ( 1.1%)
Kernel#dup: 179,348 ( 1.1%)
BasicObject#!=: 176,180 ( 1.1%)
Class#new: 168,079 ( 1.1%)
Kernel#kind_of?: 165,634 ( 1.0%)
Top-2 not optimized method types for send (100.0% of total 72,318):
cfunc: 48,055 (66.4%)
iseq: 24,263 (33.6%)
Top-6 not optimized method types for send_without_block (100.0% of total 4,523,637):
iseq: 2,271,900 (50.2%)
bmethod: 985,636 (21.8%)
optimized: 949,695 (21.0%)
alias: 310,746 ( 6.9%)
null: 5,106 ( 0.1%)
cfunc: 554 ( 0.0%)
Top-13 not optimized instructions (100.0% of total 4,293,128):
invokesuper: 2,373,401 (55.3%)
invokeblock: 811,890 (18.9%)
sendforward: 505,449 (11.8%)
opt_eq: 451,754 (10.5%)
opt_plus: 74,403 ( 1.7%)
opt_minus: 36,228 ( 0.8%)
opt_send_without_block: 21,792 ( 0.5%)
opt_neq: 7,231 ( 0.2%)
opt_mult: 6,752 ( 0.2%)
opt_or: 3,753 ( 0.1%)
opt_lt: 348 ( 0.0%)
opt_ge: 91 ( 0.0%)
opt_gt: 36 ( 0.0%)
Top-9 send fallback reasons (100.0% of total 25,530,605):
send_without_block_polymorphic: 9,722,499 (38.1%)
send_no_profiles: 5,894,763 (23.1%)
send_without_block_not_optimized_method_type: 4,523,637 (17.7%)
not_optimized_instruction: 4,293,128 (16.8%)
send_without_block_no_profiles: 998,732 ( 3.9%)
send_not_optimized_method_type: 72,318 ( 0.3%)
send_without_block_cfunc_array_variadic: 15,134 ( 0.1%)
obj_to_string_not_string: 9,765 ( 0.0%)
send_without_block_direct_too_many_args: 629 ( 0.0%)
Top-9 unhandled YARV insns (100.0% of total 690,482):
expandarray: 328,490 (47.6%)
checkkeyword: 190,694 (27.6%)
getclassvariable: 59,901 ( 8.7%)
invokesuperforward: 49,503 ( 7.2%)
getblockparam: 48,651 ( 7.0%)
opt_duparray_send: 11,978 ( 1.7%)
getconstant: 952 ( 0.1%)
checkmatch: 290 ( 0.0%)
once: 23 ( 0.0%)
Top-3 compile error reasons (100.0% of total 3,752,500):
register_spill_on_alloc: 3,457,792 (92.1%)
register_spill_on_ccall: 176,348 ( 4.7%)
exception_handler: 118,360 ( 3.2%)
Top-14 side exit reasons (100.0% of total 10,860,797):
compile_error: 3,752,500 (34.6%)
guard_type_failure: 2,638,909 (24.3%)
guard_shape_failure: 1,917,203 (17.7%)
unhandled_yarv_insn: 690,482 ( 6.4%)
block_param_proxy_not_iseq_or_ifunc: 535,784 ( 4.9%)
unhandled_kwarg: 421,947 ( 3.9%)
patchpoint: 370,474 ( 3.4%)
unknown_newarray_send: 314,786 ( 2.9%)
unhandled_splat: 122,067 ( 1.1%)
unhandled_hir_insn: 76,395 ( 0.7%)
block_param_proxy_modified: 19,193 ( 0.2%)
obj_to_string_fallback: 566 ( 0.0%)
interrupt: 469 ( 0.0%)
guard_type_not_failure: 22 ( 0.0%)
send_count: 66,945,326
dynamic_send_count: 25,530,605 (38.1%)
optimized_send_count: 41,414,721 (61.9%)
iseq_optimized_send_count: 18,587,439 (27.8%)
inline_cfunc_optimized_send_count: 7,086,426 (10.6%)
non_variadic_cfunc_optimized_send_count: 13,076,682 (19.5%)
variadic_cfunc_optimized_send_count: 2,664,174 ( 4.0%)
dynamic_getivar_count: 7,365,985
dynamic_setivar_count: 7,245,954
compiled_iseq_count: 4,794
failed_iseq_count: 450
compile_time: 748ms
profile_time: 9ms
gc_time: 8ms
invalidation_time: 58ms
vm_write_pc_count: 64,155,801
vm_write_sp_count: 62,812,041
vm_write_locals_count: 62,812,041
vm_write_stack_count: 62,812,041
vm_write_to_parent_iseq_local_count: 292,448
vm_read_from_parent_iseq_local_count: 6,470,939
code_region_bytes: 23,052,288
side_exit_count: 10,860,797
total_insn_count: 517,576,915
vm_insn_count: 163,192,099
zjit_insn_count: 354,384,816
ratio_in_zjit: 68.5%
```
These bring `send_without_block_no_profiles` numbers down dramatically.
On lobsters:
Before: send_without_block_no_profiles: 3,466,375
After: send_without_block_no_profiles: 1,293,375
all stats before:
```
***ZJIT: Printing ZJIT statistics on exit***
Top-20 not inlined C methods (70.4% of total 14,174,061):
Hash#[]: 4,519,771 (31.9%)
Kernel#is_a?: 1,030,757 ( 7.3%)
Regexp#match?: 399,885 ( 2.8%)
String#empty?: 353,775 ( 2.5%)
Hash#key?: 349,125 ( 2.5%)
Hash#[]=: 344,348 ( 2.4%)
String#start_with?: 334,961 ( 2.4%)
Kernel#respond_to?: 316,527 ( 2.2%)
ObjectSpace::WeakKeyMap#[]: 238,978 ( 1.7%)
TrueClass#===: 235,770 ( 1.7%)
FalseClass#===: 231,143 ( 1.6%)
Array#include?: 211,383 ( 1.5%)
Hash#fetch: 204,702 ( 1.4%)
Kernel#block_given?: 181,793 ( 1.3%)
ActiveSupport::OrderedOptions#_get: 181,272 ( 1.3%)
Kernel#dup: 179,341 ( 1.3%)
BasicObject#!=: 175,996 ( 1.2%)
Class#new: 168,079 ( 1.2%)
Kernel#kind_of?: 165,600 ( 1.2%)
String#==: 157,734 ( 1.1%)
Top-20 not annotated C methods (71.1% of total 14,336,035):
Hash#[]: 4,519,781 (31.5%)
Kernel#is_a?: 1,212,647 ( 8.5%)
Regexp#match?: 399,885 ( 2.8%)
String#empty?: 361,013 ( 2.5%)
Hash#key?: 349,125 ( 2.4%)
Hash#[]=: 344,348 ( 2.4%)
String#start_with?: 334,961 ( 2.3%)
Kernel#respond_to?: 316,527 ( 2.2%)
ObjectSpace::WeakKeyMap#[]: 238,978 ( 1.7%)
TrueClass#===: 235,770 ( 1.6%)
FalseClass#===: 231,143 ( 1.6%)
Array#include?: 211,383 ( 1.5%)
Hash#fetch: 204,702 ( 1.4%)
Kernel#block_given?: 191,662 ( 1.3%)
ActiveSupport::OrderedOptions#_get: 181,272 ( 1.3%)
Kernel#dup: 179,348 ( 1.3%)
BasicObject#!=: 176,180 ( 1.2%)
Class#new: 168,079 ( 1.2%)
Kernel#kind_of?: 165,634 ( 1.2%)
String#==: 163,666 ( 1.1%)
Top-2 not optimized method types for send (100.0% of total 72,318):
cfunc: 48,055 (66.4%)
iseq: 24,263 (33.6%)
Top-6 not optimized method types for send_without_block (100.0% of total 4,536,895):
iseq: 2,281,897 (50.3%)
bmethod: 985,679 (21.7%)
optimized: 952,914 (21.0%)
alias: 310,745 ( 6.8%)
null: 5,106 ( 0.1%)
cfunc: 554 ( 0.0%)
Top-13 not optimized instructions (100.0% of total 4,293,123):
invokesuper: 2,373,396 (55.3%)
invokeblock: 811,891 (18.9%)
sendforward: 505,449 (11.8%)
opt_eq: 451,754 (10.5%)
opt_plus: 74,403 ( 1.7%)
opt_minus: 36,227 ( 0.8%)
opt_send_without_block: 21,792 ( 0.5%)
opt_neq: 7,231 ( 0.2%)
opt_mult: 6,752 ( 0.2%)
opt_or: 3,753 ( 0.1%)
opt_lt: 348 ( 0.0%)
opt_ge: 91 ( 0.0%)
opt_gt: 36 ( 0.0%)
Top-9 send fallback reasons (100.0% of total 27,795,022):
send_without_block_polymorphic: 9,505,835 (34.2%)
send_no_profiles: 5,894,763 (21.2%)
send_without_block_not_optimized_method_type: 4,536,895 (16.3%)
not_optimized_instruction: 4,293,123 (15.4%)
send_without_block_no_profiles: 3,466,407 (12.5%)
send_not_optimized_method_type: 72,318 ( 0.3%)
send_without_block_cfunc_array_variadic: 15,134 ( 0.1%)
obj_to_string_not_string: 9,918 ( 0.0%)
send_without_block_direct_too_many_args: 629 ( 0.0%)
Top-9 unhandled YARV insns (100.0% of total 690,482):
expandarray: 328,490 (47.6%)
checkkeyword: 190,694 (27.6%)
getclassvariable: 59,901 ( 8.7%)
invokesuperforward: 49,503 ( 7.2%)
getblockparam: 48,651 ( 7.0%)
opt_duparray_send: 11,978 ( 1.7%)
getconstant: 952 ( 0.1%)
checkmatch: 290 ( 0.0%)
once: 23 ( 0.0%)
Top-3 compile error reasons (100.0% of total 3,752,391):
register_spill_on_alloc: 3,457,680 (92.1%)
register_spill_on_ccall: 176,348 ( 4.7%)
exception_handler: 118,363 ( 3.2%)
Top-14 side exit reasons (100.0% of total 10,852,021):
compile_error: 3,752,391 (34.6%)
guard_type_failure: 2,630,877 (24.2%)
guard_shape_failure: 1,917,208 (17.7%)
unhandled_yarv_insn: 690,482 ( 6.4%)
block_param_proxy_not_iseq_or_ifunc: 535,784 ( 4.9%)
unhandled_kwarg: 421,989 ( 3.9%)
patchpoint: 369,799 ( 3.4%)
unknown_newarray_send: 314,786 ( 2.9%)
unhandled_splat: 122,062 ( 1.1%)
unhandled_hir_insn: 76,394 ( 0.7%)
block_param_proxy_modified: 19,193 ( 0.2%)
obj_to_string_fallback: 566 ( 0.0%)
interrupt: 468 ( 0.0%)
guard_type_not_failure: 22 ( 0.0%)
send_count: 66,989,407
dynamic_send_count: 27,795,022 (41.5%)
optimized_send_count: 39,194,385 (58.5%)
iseq_optimized_send_count: 18,060,194 (27.0%)
inline_cfunc_optimized_send_count: 6,960,130 (10.4%)
non_variadic_cfunc_optimized_send_count: 11,523,682 (17.2%)
variadic_cfunc_optimized_send_count: 2,650,379 ( 4.0%)
dynamic_getivar_count: 7,365,982
dynamic_setivar_count: 7,245,929
compiled_iseq_count: 4,795
failed_iseq_count: 449
compile_time: 846ms
profile_time: 12ms
gc_time: 9ms
invalidation_time: 61ms
vm_write_pc_count: 64,326,442
vm_write_sp_count: 62,982,524
vm_write_locals_count: 62,982,524
vm_write_stack_count: 62,982,524
vm_write_to_parent_iseq_local_count: 292,448
vm_read_from_parent_iseq_local_count: 6,471,353
code_region_bytes: 22,708,224
side_exit_count: 10,852,021
total_insn_count: 517,550,288
vm_insn_count: 162,946,459
zjit_insn_count: 354,603,829
ratio_in_zjit: 68.5%
```
all stats after:
```
***ZJIT: Printing ZJIT statistics on exit***
Top-20 not inlined C methods (71.1% of total 15,575,343):
Hash#[]: 4,519,778 (29.0%)
Kernel#is_a?: 1,030,758 ( 6.6%)
String#<<: 851,931 ( 5.5%)
Hash#[]=: 742,938 ( 4.8%)
Regexp#match?: 399,886 ( 2.6%)
String#empty?: 353,775 ( 2.3%)
Hash#key?: 349,127 ( 2.2%)
String#start_with?: 334,961 ( 2.2%)
Kernel#respond_to?: 316,529 ( 2.0%)
ObjectSpace::WeakKeyMap#[]: 238,978 ( 1.5%)
TrueClass#===: 235,771 ( 1.5%)
FalseClass#===: 231,144 ( 1.5%)
Array#include?: 211,380 ( 1.4%)
Hash#fetch: 204,701 ( 1.3%)
Kernel#block_given?: 181,792 ( 1.2%)
ActiveSupport::OrderedOptions#_get: 181,272 ( 1.2%)
Kernel#dup: 179,341 ( 1.2%)
BasicObject#!=: 175,997 ( 1.1%)
Class#new: 168,079 ( 1.1%)
Kernel#kind_of?: 165,600 ( 1.1%)
Top-20 not annotated C methods (71.6% of total 15,737,486):
Hash#[]: 4,519,788 (28.7%)
Kernel#is_a?: 1,212,649 ( 7.7%)
String#<<: 851,931 ( 5.4%)
Hash#[]=: 743,117 ( 4.7%)
Regexp#match?: 399,886 ( 2.5%)
String#empty?: 361,013 ( 2.3%)
Hash#key?: 349,127 ( 2.2%)
String#start_with?: 334,961 ( 2.1%)
Kernel#respond_to?: 316,529 ( 2.0%)
ObjectSpace::WeakKeyMap#[]: 238,978 ( 1.5%)
TrueClass#===: 235,771 ( 1.5%)
FalseClass#===: 231,144 ( 1.5%)
Array#include?: 211,380 ( 1.3%)
Hash#fetch: 204,701 ( 1.3%)
Kernel#block_given?: 191,661 ( 1.2%)
ActiveSupport::OrderedOptions#_get: 181,272 ( 1.2%)
Kernel#dup: 179,348 ( 1.1%)
BasicObject#!=: 176,181 ( 1.1%)
Class#new: 168,079 ( 1.1%)
Kernel#kind_of?: 165,634 ( 1.1%)
Top-2 not optimized method types for send (100.0% of total 72,318):
cfunc: 48,055 (66.4%)
iseq: 24,263 (33.6%)
Top-6 not optimized method types for send_without_block (100.0% of total 4,523,650):
iseq: 2,271,911 (50.2%)
bmethod: 985,636 (21.8%)
optimized: 949,696 (21.0%)
alias: 310,747 ( 6.9%)
null: 5,106 ( 0.1%)
cfunc: 554 ( 0.0%)
Top-13 not optimized instructions (100.0% of total 4,293,126):
invokesuper: 2,373,395 (55.3%)
invokeblock: 811,894 (18.9%)
sendforward: 505,449 (11.8%)
opt_eq: 451,754 (10.5%)
opt_plus: 74,403 ( 1.7%)
opt_minus: 36,228 ( 0.8%)
opt_send_without_block: 21,792 ( 0.5%)
opt_neq: 7,231 ( 0.2%)
opt_mult: 6,752 ( 0.2%)
opt_or: 3,753 ( 0.1%)
opt_lt: 348 ( 0.0%)
opt_ge: 91 ( 0.0%)
opt_gt: 36 ( 0.0%)
Top-9 send fallback reasons (100.0% of total 25,824,512):
send_without_block_polymorphic: 9,721,725 (37.6%)
send_no_profiles: 5,894,761 (22.8%)
send_without_block_not_optimized_method_type: 4,523,650 (17.5%)
not_optimized_instruction: 4,293,126 (16.6%)
send_without_block_no_profiles: 1,293,404 ( 5.0%)
send_not_optimized_method_type: 72,318 ( 0.3%)
send_without_block_cfunc_array_variadic: 15,134 ( 0.1%)
obj_to_string_not_string: 9,765 ( 0.0%)
send_without_block_direct_too_many_args: 629 ( 0.0%)
Top-9 unhandled YARV insns (100.0% of total 690,482):
expandarray: 328,490 (47.6%)
checkkeyword: 190,694 (27.6%)
getclassvariable: 59,901 ( 8.7%)
invokesuperforward: 49,503 ( 7.2%)
getblockparam: 48,651 ( 7.0%)
opt_duparray_send: 11,978 ( 1.7%)
getconstant: 952 ( 0.1%)
checkmatch: 290 ( 0.0%)
once: 23 ( 0.0%)
Top-3 compile error reasons (100.0% of total 3,752,504):
register_spill_on_alloc: 3,457,793 (92.1%)
register_spill_on_ccall: 176,348 ( 4.7%)
exception_handler: 118,363 ( 3.2%)
Top-14 side exit reasons (100.0% of total 10,860,754):
compile_error: 3,752,504 (34.6%)
guard_type_failure: 2,638,901 (24.3%)
guard_shape_failure: 1,917,198 (17.7%)
unhandled_yarv_insn: 690,482 ( 6.4%)
block_param_proxy_not_iseq_or_ifunc: 535,785 ( 4.9%)
unhandled_kwarg: 421,947 ( 3.9%)
patchpoint: 370,447 ( 3.4%)
unknown_newarray_send: 314,786 ( 2.9%)
unhandled_splat: 122,065 ( 1.1%)
unhandled_hir_insn: 76,395 ( 0.7%)
block_param_proxy_modified: 19,193 ( 0.2%)
obj_to_string_fallback: 566 ( 0.0%)
interrupt: 463 ( 0.0%)
guard_type_not_failure: 22 ( 0.0%)
send_count: 66,945,926
dynamic_send_count: 25,824,512 (38.6%)
optimized_send_count: 41,121,414 (61.4%)
iseq_optimized_send_count: 18,587,430 (27.8%)
inline_cfunc_optimized_send_count: 6,958,641 (10.4%)
non_variadic_cfunc_optimized_send_count: 12,911,166 (19.3%)
variadic_cfunc_optimized_send_count: 2,664,177 ( 4.0%)
dynamic_getivar_count: 7,365,985
dynamic_setivar_count: 7,245,942
compiled_iseq_count: 4,794
failed_iseq_count: 450
compile_time: 852ms
profile_time: 13ms
gc_time: 11ms
invalidation_time: 63ms
vm_write_pc_count: 64,284,194
vm_write_sp_count: 62,940,427
vm_write_locals_count: 62,940,427
vm_write_stack_count: 62,940,427
vm_write_to_parent_iseq_local_count: 292,447
vm_read_from_parent_iseq_local_count: 6,470,931
code_region_bytes: 23,019,520
side_exit_count: 10,860,754
total_insn_count: 517,576,267
vm_insn_count: 163,188,187
zjit_insn_count: 354,388,080
ratio_in_zjit: 68.5%
```
* ZJIT: Profile opt_aref * ZJIT: Add test for opt_aref * ZJIT: Move test and add hash opt test * ZJIT: Update zjit bindgen * ZJIT: Add inspect calls to opt_aref tests
to fix inconsistent and wrong current namespace detections. This includes: * Moving load_path and related things from rb_vm_t to rb_namespace_t to simplify accessing those values via namespace (instead of accessing either vm or ns) * Initializing root_namespace earlier and consolidate builtin_namespace into root_namespace * Adding VM_FRAME_FLAG_NS_REQUIRE for checkpoints to detect a namespace to load/require files * Removing implicit refinements in the root namespace which was used to determine the namespace to be loaded (replaced by VM_FRAME_FLAG_NS_REQUIRE) * Removing namespaces from rb_proc_t because its namespace can be identified by lexical context * Starting to use ep[VM_ENV_DATA_INDEX_SPECVAL] to store the current namespace when the frame type is MAGIC_TOP or MAGIC_CLASS (block handlers don't exist in this case)