Perf: typed int **111 / pow(n,111) chained smul omit llvm.pow.f64 (#36386) - #37722
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…6386) Lower compile-time exponent 111 via (hundredtenth×n) chained smul.with.overflow in JitPowIntegerEmitHigh — omit llvm.pow.f64. Odd: (-1)**111 === -1. Append-only (no new spine TU). php-src: Zend/zend_operators.c pow_function/zend_pow; ext/standard/math.c PHP_FUNCTION(pow). Co-authored-by: Cursor <cursoragent@cursor.com>
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Summary
111via(hundredtenth×n)chainedsmul.with.overflowinJitPowIntegerEmitHigh— omitllvm.pow.f64.(-1)**111 === -1. Append-only (no new spine TU).#36386 % 3 == 2); lane overflow: CI: php-llvm-structgep-assert.patch fails to apply — blocks north-star5-verify-fast and all bootstrap gates #36143–VM: 1M-iteration loops exit 255 silently — restore compute-suite headroom on bin/vm.php #36148 / RunForge north star (Sep 2026): trust, build speed, performance — automation tracker #36142 children closed.php-src:
Zend/zend_operators.cpow_function/zend_pow/mul_function;ext/standard/math.cPHP_FUNCTION(pow).Test plan
./script/phpunit.sh --filter 'NoThrowPowHundredeleventhMulAotTest'→ OK (4 tests, 23 assertions)./script/aot-smoke.sh→ 9 passed, 0 failed (+ size gate OK)./script/differential-sweep.sh --aot --repeat 3 --dir test/differential/cases/_pow111_only→ 1/1 match Zend (temp dir withpow_hundredeleventh_smul_36386.phponly; removed after)php script/check-size-budgets.php→ OK (157 entries)Made with Cursor