Stdlib: grapheme_str_split() JIT compile-time fold (#6246) - #19962
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Add JitGrapheme::tryStrSplitFold mirroring other grapheme builtins; AOT lint + JIT PHPT guard. php-src: ext/intl/grapheme/grapheme_string.c PHP_FUNCTION(grapheme_strsplit) Co-authored-by: Cursor <cursoragent@cursor.com>
This was referenced Jul 17, 2026
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Summary
JitGrapheme::tryStrSplitFold()— compile-time materialization ofgrapheme_str_split()using existingVmGrapheme::strSplit()(php-srcext/intl/grapheme/grapheme_string.c).grapheme_str_split::call()to fold literals (same pattern asgrapheme_strlen()/preg_split()).grapheme_str_split_jit.phpt, AOT lint fixture +GraphemeStrSplitJitCompileTest.Runtime JIT for non-literal operands remains deferred (unchanged).
Test plan
Closes #6246 (JIT slice; VM path was already green when
extension_loaded('intl')).Made with Cursor