perf: Skip redundant stack limit analysis

[sbillig]

Description

Skip running StackLimitEvader when StackCompressor determines that there are no stack-too-deep problems.
This avoids rebuilding the cfg, and repeating the same analysis.

It also avoids the rewriting of memoryguard literals from decimal to hex in the otherwise-noop case
that we now skip, hence the updated test output file changes. (Previously eg memoryguard(128) would be rewritten to memoryguard(0x80) unconditionally)

On Uniswap v4-core, this reduces allocation calls by 19.085M (−3.2071%) and requested bytes by 3.396 GB (−3.7172%).

Baseline: 0.8.37-ci.2026.8.6+commit.9b2f86be.Linux.g++ n=3
Target:   0.8.37-ci.2026.8.13+commit.7858cdc6.Linux.g++ n=3
Values are mean ± sample stddev. Δ% = (target mean - baseline mean) / baseline mean. Negative = improvement (lower is better), positive = regression.
winner = '~noise' unless the gap passes a Welch t-test and |Δ%| ≥ 0.1%.

Benchmark                Pipeline  Metric         Base                   Target                 Δ%      winner
-----------------------  --------  -------------  ---------------------  ---------------------  ------  --------
openzeppelin-5.6.1       evmasm    cpu_time       18.2369s ± 0.0193s     18.2746s ± 0.0101s     +0.21%  ~noise
                                   creation_size  725,287 ± 0            725,287 ± 0            0.0%    tie
                                   cycles         63.2694G ± 77.7217M    63.3187G ± 30.0288M    +0.08%  ~noise
                                   instructions   124.9823G ± 473        125.1079G ± 278        +0.1%   BASELINE
                                   peak_rss       1015 ± 0 MiB           1066 ± 0 MiB           +5.01%  BASELINE
                                   runtime_size   650,752 ± 0            650,752 ± 0            0.0%    tie
                                   wall_time      18.3659s ± 0.0175s     18.4003s ± 0.0087s     +0.19%  ~noise

openzeppelin-5.6.1       ir        cpu_time       52.1626s ± 0.0527s     50.3149s ± 0.0150s     -3.54%  TARGET
                                   creation_size  675,405 ± 0            675,405 ± 0            0.0%    tie
                                   cycles         184.5272G ± 174.2462M  177.9435G ± 44.9278M   -3.57%  TARGET
                                   instructions   300.9914G ± 1.1239k    288.9893G ± 426        -3.99%  TARGET
                                   peak_rss       1387 ± 0 MiB           1388 ± 0 MiB           +0.12%  BASELINE
                                   runtime_size   598,355 ± 0            598,355 ± 0            0.0%    tie
                                   wall_time      52.4456s ± 0.0532s     50.5925s ± 0.0165s     -3.53%  TARGET

solady-0.1.26            evmasm    cpu_time       25.4536s ± 0.0512s     25.4753s ± 0.0133s     +0.09%  ~noise
                                   creation_size  1,514,791 ± 0          1,514,791 ± 0          0.0%    tie
                                   cycles         87.5712G ± 174.8606M   87.7038G ± 57.2997M    +0.15%  ~noise
                                   instructions   182.2905G ± 222        182.4166G ± 352        +0.07%  ~noise
                                   peak_rss       1813 ± 0 MiB           1812 ± 0 MiB           -0.08%  ~noise
                                   runtime_size   1,480,154 ± 0          1,480,154 ± 0          0.0%    tie
                                   wall_time      25.6441s ± 0.0450s     25.6659s ± 0.0232s     +0.08%  ~noise

solady-0.1.26            ir        cpu_time       132.6701s ± 0.0816s    128.0828s ± 0.0517s    -3.46%  TARGET
                                   creation_size  1,681,895 ± 0          1,681,895 ± 0          0.0%    tie
                                   cycles         471.0342G ± 319.0700M  454.5971G ± 179.7754M  -3.49%  TARGET
                                   instructions   682.6695G ± 73         655.2556G ± 364        -4.02%  TARGET
                                   peak_rss       2785 ± 0 MiB           2786 ± 0 MiB           +0.06%  ~noise
                                   runtime_size   1,650,497 ± 0          1,650,497 ± 0          0.0%    tie
                                   wall_time      133.3793s ± 0.0978s    128.7534s ± 0.0557s    -3.47%  TARGET

prb-math-4.1.1           evmasm    cpu_time       6.6805s ± 0.0164s      6.6862s ± 0.0020s      +0.09%  ~noise
                                   creation_size  252,039 ± 0            252,039 ± 0            0.0%    tie
                                   cycles         21.4643G ± 67.4157M    21.4950G ± 22.8553M    +0.14%  ~noise
                                   instructions   45.7352G ± 136         45.7425G ± 97          +0.02%  ~noise
                                   peak_rss       1171 ± 0 MiB           1171 ± 0 MiB           0.0%    tie
                                   runtime_size   250,178 ± 0            250,178 ± 0            0.0%    tie
                                   wall_time      6.7311s ± 0.0226s      6.7406s ± 0.0108s      +0.14%  ~noise

prb-math-4.1.1           ir        cpu_time       26.8109s ± 0.0093s     26.2661s ± 0.0125s     -2.03%  TARGET
                                   creation_size  262,432 ± 0            262,432 ± 0            0.0%    tie
                                   cycles         93.2943G ± 37.6994M    91.3638G ± 44.0117M    -2.07%  TARGET
                                   instructions   145.0668G ± 428        141.6537G ± 295        -2.35%  TARGET
                                   peak_rss       1430 ± 0 MiB           1434 ± 0 MiB           +0.26%  BASELINE
                                   runtime_size   260,832 ± 0            260,832 ± 0            0.0%    tie
                                   wall_time      26.9518s ± 0.0044s     26.4058s ± 0.0115s     -2.03%  TARGET

forge-std-1.16.1         evmasm    cpu_time       8.0321s ± 0.0103s      8.0030s ± 0.0020s      -0.36%  TARGET
                                   creation_size  394,603 ± 0            394,603 ± 0            0.0%    tie
                                   cycles         27.6142G ± 32.9076M    27.5275G ± 3.6783M     -0.31%  TARGET
                                   instructions   54.8421G ± 248         54.8666G ± 83          +0.04%  ~noise
                                   peak_rss       542 ± 0 MiB            541 ± 0 MiB            -0.1%   TARGET
                                   runtime_size   381,729 ± 0            381,729 ± 0            0.0%    tie
                                   wall_time      8.0877s ± 0.0198s      8.0564s ± 0.0062s      -0.39%  ~noise

forge-std-1.16.1         ir        cpu_time       34.6354s ± 0.0248s     33.6999s ± 0.0142s     -2.7%   TARGET
                                   creation_size  422,073 ± 0            422,073 ± 0            0.0%    tie
                                   cycles         122.7875G ± 90.3700M   119.3914G ± 46.9614M   -2.77%  TARGET
                                   instructions   179.8147G ± 227        173.4876G ± 249        -3.52%  TARGET
                                   peak_rss       758 ± 0 MiB            783 ± 0 MiB            +3.24%  BASELINE
                                   runtime_size   406,750 ± 0            406,750 ± 0            0.0%    tie
                                   wall_time      34.8104s ± 0.0177s     33.8796s ± 0.0113s     -2.67%  TARGET

v4-core-4.0.0            evmasm    cpu_time       16.0804s ± 0.0128s     16.0955s ± 0.0229s     +0.09%  ~noise
                                   creation_size  2,012,188 ± 0          2,012,188 ± 0          0.0%    tie
                                   cycles         55.8132G ± 32.3274M    55.8782G ± 89.4153M    +0.12%  ~noise
                                   instructions   110.3795G ± 49         110.5018G ± 317        +0.11%  BASELINE
                                   peak_rss       861 ± 0 MiB            862 ± 0 MiB            +0.07%  ~noise
                                   runtime_size   1,983,262 ± 0          1,983,262 ± 0          0.0%    tie
                                   wall_time      16.1980s ± 0.0133s     16.2077s ± 0.0228s     +0.06%  ~noise

v4-core-4.0.0            ir        cpu_time       89.5287s ± 0.0238s     87.4018s ± 0.0392s     -2.38%  TARGET
                                   creation_size  1,804,635 ± 0          1,804,635 ± 0          0.0%    tie
                                   cycles         318.1867G ± 95.7863M   310.4663G ± 145.3140M  -2.43%  TARGET
                                   instructions   480.9478G ± 1.4668k    467.6325G ± 749        -2.77%  TARGET
                                   peak_rss       1617 ± 0 MiB           1615 ± 0 MiB           -0.11%  TARGET
                                   runtime_size   1,777,945 ± 0          1,777,945 ± 0          0.0%    tie
                                   wall_time      89.9842s ± 0.0219s     87.8462s ± 0.0410s     -2.38%  TARGET

morpho-blue-1.0.0        evmasm    cpu_time       9.2900s ± 0.0134s      9.3192s ± 0.0063s      +0.31%  BASELINE
                                   creation_size  802,290 ± 0            802,290 ± 0            0.0%    tie
                                   cycles         32.2336G ± 50.1880M    32.3484G ± 29.7335M    +0.36%  BASELINE
                                   instructions   65.0197G ± 222         65.0657G ± 180         +0.07%  ~noise
                                   peak_rss       542 ± 0 MiB            541 ± 0 MiB            -0.1%   TARGET
                                   runtime_size   798,085 ± 0            798,085 ± 0            0.0%    tie
                                   wall_time      9.3493s ± 0.0125s      9.3862s ± 0.0056s      +0.39%  BASELINE

morpho-blue-1.0.0        ir        cpu_time       51.1071s ± 0.0480s     50.9301s ± 0.0256s     -0.35%  TARGET
                                   creation_size  753,526 ± 0            753,526 ± 0            0.0%    tie
                                   cycles         181.6723G ± 178.6852M  181.0903G ± 95.9752M   -0.32%  TARGET
                                   instructions   263.1485G ± 560        261.4888G ± 117        -0.63%  TARGET
                                   peak_rss       875 ± 0 MiB            877 ± 0 MiB            +0.3%   BASELINE
                                   runtime_size   750,240 ± 0            750,240 ± 0            0.0%    tie
                                   wall_time      51.3653s ± 0.0442s     51.1889s ± 0.0261s     -0.34%  TARGET

seaport-1.6              evmasm    cpu_time       108.5253s ± 0.0631s    108.4212s ± 0.1191s    -0.1%   ~noise
                                   creation_size  13,568,823 ± 0         13,568,823 ± 0         0.0%    tie
                                   cycles         376.5852G ± 187.1832M  376.2774G ± 368.9030M  -0.08%  ~noise
                                   instructions   672.5458G ± 3.2772k    672.9423G ± 4.6918k    +0.06%  ~noise
                                   peak_rss       2644 ± 0 MiB           2637 ± 0 MiB           -0.28%  TARGET
                                   runtime_size   12,556,893 ± 0         12,556,893 ± 0         0.0%    tie
                                   wall_time      109.2112s ± 0.0648s    109.1029s ± 0.1351s    -0.1%   ~noise

solmate-6                evmasm    cpu_time       3.5026s ± 0.0027s      3.5026s ± 0.0053s      0.0%    tie
                                   creation_size  279,294 ± 0            279,294 ± 0            0.0%    tie
                                   cycles         12.1756G ± 9.7649M     12.1820G ± 16.1807M    +0.05%  ~noise
                                   instructions   24.8168G ± 181         24.8589G ± 60          +0.17%  BASELINE
                                   peak_rss       848 ± 0 MiB            848 ± 0 MiB            +0.01%  ~noise
                                   runtime_size   272,389 ± 0            272,389 ± 0            0.0%    tie
                                   wall_time      3.5290s ± 0.0125s      3.5299s ± 0.0115s      +0.03%  ~noise

solmate-6                ir        cpu_time       18.7255s ± 0.0303s     17.9808s ± 0.0400s     -3.98%  TARGET
                                   creation_size  267,193 ± 0            267,193 ± 0            0.0%    tie
                                   cycles         66.5457G ± 106.5130M   63.8952G ± 138.5058M   -3.98%  TARGET
                                   instructions   98.4781G ± 228         94.0430G ± 357         -4.5%   TARGET
                                   peak_rss       848 ± 0 MiB            848 ± 0 MiB            +0.01%  ~noise
                                   runtime_size   259,851 ± 0            259,851 ± 0            0.0%    tie
                                   wall_time      18.8164s ± 0.0300s     18.0685s ± 0.0398s     -3.97%  TARGET

solarray-a547630         evmasm    cpu_time       1.0186s ± 0.0025s      1.0130s ± 0.0025s      -0.55%  ~noise
                                   creation_size  4,474 ± 0              4,474 ± 0              0.0%    tie
                                   cycles         3.2251G ± 5.4466M      3.2026G ± 15.3649M     -0.7%   ~noise
                                   instructions   7.6376G ± 23           7.6265G ± 23           -0.15%  TARGET
                                   peak_rss       848 ± 0 MiB            848 ± 0 MiB            +0.01%  ~noise
                                   runtime_size   3,992 ± 0              3,992 ± 0              0.0%    tie
                                   wall_time      1.0272s ± 0.0040s      1.0203s ± 0.0024s      -0.67%  ~noise

solarray-a547630         ir        cpu_time       1.1946s ± 0.0029s      1.1939s ± 0.0009s      -0.06%  ~noise
                                   creation_size  4,220 ± 0              4,220 ± 0              0.0%    tie
                                   cycles         3.8556G ± 9.4355M      3.8531G ± 1.6205M      -0.07%  ~noise
                                   instructions   8.7550G ± 32           8.7065G ± 10           -0.55%  TARGET
                                   peak_rss       848 ± 0 MiB            848 ± 0 MiB            +0.01%  ~noise
                                   runtime_size   3,920 ± 0              3,920 ± 0              0.0%    tie
                                   wall_time      1.2033s ± 0.0028s      1.2024s ± 0.0011s      -0.08%  ~noise

solidity-verifier        evmasm    cpu_time       0.1060s ± 0.0002s      0.1063s ± 0.0003s      +0.29%  ~noise
                                   creation_size  4,790 ± 0              4,790 ± 0              0.0%    tie
                                   cycles         295.5401M ± 167.5773k  296.3735M ± 508.8326k  +0.28%  ~noise
                                   instructions   635.5532M ± 5          636.9812M ± 9          +0.22%  BASELINE
                                   peak_rss       848 ± 0 MiB            848 ± 0 MiB            +0.01%  ~noise
                                   runtime_size   4,712 ± 0              4,712 ± 0              0.0%    tie
                                   wall_time      0.1070s ± 0.0002s      0.1072s ± 0.0003s      +0.18%  ~noise

solidity-verifier        ir        cpu_time       0.2218s ± 0.0002s      0.2147s ± 0.0001s      -3.2%   TARGET
                                   creation_size  4,215 ± 0              4,215 ± 0              0.0%    tie
                                   cycles         709.3663M ± 230.6292k  683.7439M ± 122.8496k  -3.61%  TARGET
                                   instructions   1.3577G ± 32           1.3102G ± 8            -3.5%   TARGET
                                   peak_rss       848 ± 0 MiB            848 ± 0 MiB            +0.01%  ~noise
                                   runtime_size   4,161 ± 0              4,161 ± 0              0.0%    tie
                                   wall_time      0.2233s ± 0.0004s      0.2161s ± 0.0002s      -3.21%  TARGET

solidity-optimizor-club  ir        cpu_time       1.0816s ± 0.0020s      1.0491s ± 0.0017s      -3.01%  TARGET
                                   creation_size  21,778 ± 0             21,778 ± 0             0.0%    tie
                                   cycles         3.7407G ± 5.2469M      3.6258G ± 6.8670M      -3.07%  TARGET
                                   instructions   7.0230G ± 45           6.7913G ± 23           -3.3%   TARGET
                                   peak_rss       848 ± 0 MiB            848 ± 0 MiB            +0.01%  ~noise
                                   runtime_size   20,616 ± 0             20,616 ± 0             0.0%    tie
                                   wall_time      1.0874s ± 0.0019s      1.0546s ± 0.0018s      -3.01%  TARGET

solidity-chains          evmasm    cpu_time       0.1113s ± 0.0002s      0.1116s ± 0.0005s      +0.28%  ~noise
                                   creation_size  5,831 ± 0              5,831 ± 0              0.0%    tie
                                   cycles         317.8958M ± 567.3079k  318.6019M ± 694.3545k  +0.22%  ~noise
                                   instructions   650.1319M ± 11         651.3160M ± 11         +0.18%  BASELINE
                                   peak_rss       848 ± 0 MiB            848 ± 0 MiB            +0.01%  ~noise
                                   runtime_size   5,803 ± 0              5,803 ± 0              0.0%    tie
                                   wall_time      0.1121s ± 0.0003s      0.1124s ± 0.0006s      +0.23%  ~noise
                                   ```

## Checklist
- [x] I have read the [contributing guidelines](https://docs.soliditylang.org/en/latest/contributing.html) and the [review checklist](https://github.com/argotorg/solidity/blob/develop/ReviewChecklist.md)
- [x] I have personally reviewed, understood, and tested every change in this PR

## AI Disclosure

gpt 5.6 sol xhigh for everything