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feat(minifier): replace Math.pow with **#8730

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01-25-feat_minifier_replace_math.pow_with_
Jan 26, 2025
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feat(minifier): replace Math.pow with **#8730
graphite-app[bot] merged 1 commit intomainfrom
01-25-feat_minifier_replace_math.pow_with_

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@sapphi-red sapphi-red commented Jan 26, 2025

Replaces Math.pow(a, b) with (+a) ** (+b). + does ToNumber and ** does Number::exponentiate when both operands are number.
+ is not added when a or b is already a number.

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sapphi-red commented Jan 26, 2025


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@github-actions github-actions bot added A-minifier Area - Minifier C-enhancement Category - New feature or request labels Jan 26, 2025
@sapphi-red sapphi-red force-pushed the 01-25-refactor_minifier_allow_mutating_arguments_in_methods_called_from_try_fold_known_string_methods_ branch from 12cb3f3 to 6d924d7 Compare January 26, 2025 10:24
@sapphi-red sapphi-red force-pushed the 01-25-feat_minifier_replace_math.pow_with_ branch from 5d8ec60 to 82a21ad Compare January 26, 2025 10:24
@sapphi-red sapphi-red marked this pull request as ready for review January 26, 2025 10:28
@graphite-app graphite-app bot added the 0-merge Merge with Graphite Merge Queue label Jan 26, 2025
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codspeed-hq bot commented Jan 26, 2025

CodSpeed Performance Report

Merging #8730 will not alter performance

Comparing 01-25-feat_minifier_replace_math.pow_with_ (360d49e) with main (6bc906c)

Summary

✅ 33 untouched benchmarks

@Boshen Boshen changed the base branch from 01-25-refactor_minifier_allow_mutating_arguments_in_methods_called_from_try_fold_known_string_methods_ to graphite-base/8730 January 26, 2025 10:50
@graphite-app graphite-app bot added 0-merge Merge with Graphite Merge Queue and removed 0-merge Merge with Graphite Merge Queue labels Jan 26, 2025
@sapphi-red sapphi-red force-pushed the 01-25-feat_minifier_replace_math.pow_with_ branch from 82a21ad to cbeda1b Compare January 26, 2025 11:08
@sapphi-red sapphi-red force-pushed the 01-25-feat_minifier_replace_math.pow_with_ branch from cbeda1b to 672d6e9 Compare January 26, 2025 11:11
@Boshen Boshen changed the base branch from graphite-base/8730 to main January 26, 2025 11:18
@Boshen Boshen force-pushed the 01-25-feat_minifier_replace_math.pow_with_ branch from 672d6e9 to 335d07e Compare January 26, 2025 11:18
Replaces `Math.pow(a, b)` with `(+a) ** (+b)`. `+` does `ToNumber` and `**` does `Number::exponentiate` when both operands are number.
`+` is not added when `a` or `b` is already a number.

**Reference**
- [Spec of `Math.pow`](https://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-math.pow)
- [Spec of `**`](https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-exp-operator-runtime-semantics-evaluation)
- [Spec of unary `+`](https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#sec-unary-plus-operator-runtime-semantics-evaluation)
@Boshen Boshen force-pushed the 01-25-feat_minifier_replace_math.pow_with_ branch from 335d07e to 360d49e Compare January 26, 2025 11:24
@graphite-app graphite-app bot merged commit 360d49e into main Jan 26, 2025
25 checks passed
@graphite-app graphite-app bot deleted the 01-25-feat_minifier_replace_math.pow_with_ branch January 26, 2025 11:34
Boshen added a commit that referenced this pull request Jan 26, 2025
## [0.48.1] - 2025-01-26

### Features

- b7f13e6 ast: Implement utf8 to utf16 span converter (#8687) (Boshen)
- 6589c3b mangler: Reuse variable names (#8562) (翠 / green)
- 29bd215 minifier: Minimize `Infinity.toString(radix)` to `'Infinity'`
(#8732) (Boshen)
- e0117db minifier: Replace `const` with `let` for non-exported
read-only variables (#8733) (sapphi-red)
- 9e32f55 minifier: Evaluate `Math.sqrt` and `Math.cbrt` (#8731)
(sapphi-red)
- 360d49e minifier: Replace `Math.pow` with `**` (#8730) (sapphi-red)
- 2e9a560 minifier: `NaN.toString(radix)` is always `NaN` (#8727)
(Boshen)
- cbe0e82 minifier: Minimize `foo(...[])` -> `foo()` (#8726) (Boshen)
- e9fb5fe minifier: Dce pure expressions such as `new Map()` (#8725)
(Boshen)

### Bug Fixes

- 0944758 codegen: Remove parens from `new (import(''), function() {})`
(#8707) (Boshen)
- 33de70a mangler: Handle cases where a var is declared in a block scope
(#8706) (翠 / green)
- d982cdb minifier: `Unknown.fromCharCode` should not be treated as
`String.fromCharCode` (#8709) (sapphi-red)
- e7ab96c transformer/jsx: Incorrect `isStaticChildren` argument for
`Fragment` with multiple children (#8713) (Dunqing)
- 3e509e1 transformer/typescript: Enum merging when same name declared
in outer scope (#8691) (branchseer)

### Performance

- dc0b0f2 manger: Remove useless `tmp_bindings` (#8735) (Dunqing)
- e472ced mangler: Optimize handling of collecting lived scope ids
(#8724) (Dunqing)
- 8587965 minifier: Normalize `undefined` to `void 0` before everything
else (#8699) (Boshen)

### Refactor

- 58002e2 ecmascript: Remove the lifetime annotation on
`MayHaveSideEffects` (#8717) (Boshen)
- 10e5920 linter: Move finishing default diagnostic message to
`GraphicalReporter` (#8683) (Sysix)
- 52a37d0 mangler: Simplify initialization of `slots` (#8734) (Dunqing)
- 6bc906c minifier: Allow mutating arguments in methods called from
`try_fold_known_string_methods` (#8729) (sapphi-red)
- bf8be23 minifier: Use `Ctx` (#8716) (Boshen)
- 0af0267 minifier: Side effect detection needs symbols resolution
(#8715) (Boshen)
- 32e0e47 minifier: Clean up `Normalize` (#8700) (Boshen)
- c792068 semantic: Simplify `ScopeTree::iter_bindings` (#8723)
(Dunqing)

### Testing

- 03229c5 minifier: Fix broken tests (#8722) (Boshen)

Co-authored-by: Boshen <1430279+Boshen@users.noreply.github.com>
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