Make strtolower()/strtoupper() frameless - #23084
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Both are single-argument wrappers around zend_string_tolower/upper; static analyzers and general string handling call them at very high frequency. The frameless call convention removes the call frame setup and argument copying.
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disclaimer: this change was generated by claude opus. I have little experience with php-src development
Both are single-argument wrappers around zend_string_tolower/upper; static analyzers and general string handling call them at very high frequency. The frameless call convention removes the call frame setup and argument copying.
benchmark (3 runs after 2 warmup runs):
run
/Users/staabm/workspace/php-src/sapi/cli/php bin/phpstan clear-result-cache -q && /Users/staabm/workspace/php-src/sapi/cli/php -d memory_limit=450M bin/phpstan -vafter checking out phpstan/phpstan-src#5942 from the git root folder.(on first time phpstan-src checkout you need
composer installandmaketo prepare the codebase)before this PR:
14.39s
14.44s
14.36s
after this PR:
14.18s
14.14s
14.12s
on M4-Pro with macOS 26.6 (25G72)