perf(minifier): remove late optimization pass

[Boshen]

Probably an overkill?

[Boshen]

• perf(minifier): remove late optimization pass #12670 👈 (View in Graphite)
• main

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[codspeed-hq]

CodSpeed Instrumentation Performance Report

Merging #12670 will improve performances by 5.98%

_{Comparing 07-31-perf_minifier_remove_late_optimization_pass (96b4009) with main (e0e835b)¹}

Summary

⚡ 2 improvements
✅ 32 untouched benchmarks

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
⚡	minifier[RadixUIAdoptionSection.jsx]	80.3 µs	75.8 µs	+5.98%
⚡	minifier[binder.ts]	4.9 ms	4.7 ms	+3.87%

Footnotes

1. No successful run was found on main (96b4009) during the generation of this report, so e0e835b was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

[Boshen]

Merge activity

• Aug 9, 4:27 PM UTC: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• Aug 9, 4:27 PM UTC: Boshen added this pull request to the Graphite merge queue.
• Aug 9, 4:33 PM UTC: Merged by the Graphite merge queue.

[Copilot]

Pull Request Overview

This PR removes the late optimization pass from the minifier, consolidating optimizations into a single pass to simplify the architecture. The change moves several optimization methods from LatePeepholeOptimizations into the main PeepholeOptimizations pass and removes the separate late pass entirely.

• Removes the LatePeepholeOptimizations struct and its separate traversal pass
• Moves optimization methods from late pass into the main PeepholeOptimizations implementation
• Consolidates spread argument removal into the main call/new expression handlers

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
crates/oxc_minifier/src/compressor.rs	Removes the late optimization pass call from the compression pipeline
crates/oxc_minifier/src/peephole/mod.rs	Eliminates LatePeepholeOptimizations struct and merges its methods into PeepholeOptimizations
crates/oxc_minifier/src/peephole/substitute_alternate_syntax.rs	Moves optimization methods from late pass and integrates them into main expression handling
crates/oxc_minifier/src/peephole/remove_dead_code.rs	Moves dead code removal method from late pass to main implementation
crates/oxc_minifier/src/peephole/convert_to_dotted_properties.rs	Updates implementation to use PeepholeOptimizations instead of LatePeepholeOptimizations

[Copilot]

The method remove_dead_code_exit_class_body should be moved to the PeepholeOptimizations impl block to maintain consistency with the consolidation pattern used elsewhere in this PR.

Suggested change

	pub fn remove_dead_code_exit_class_body(body: &mut ClassBody<'a>, _ctx: &mut Ctx<'a, '_>) {
	pub fn remove_dead_code_exit_class_body(&self, body: &mut ClassBody<'a>, _ctx: &mut Ctx<'a, '_>) {