Branch: refs/heads/main Home: https://github.com/WebKit/WebKit Commit: a8e4fcd2924b785084c47fb25d2af3c4d1ac6229 https://github.com/WebKit/WebKit/commit/a8e4fcd2924b785084c47fb25d2af3c4d1ac6229 Author: Michael Saboff <msab...@apple.com> Date: 2024-05-23 (Thu, 23 May 2024)
Changed paths: M Source/JavaScriptCore/yarr/YarrJIT.cpp M Source/JavaScriptCore/yarr/YarrJITRegisters.h Log Message: ----------- REGRESSION: (r276031) PremiereMax.com no longer loads properly https://bugs.webkit.org/show_bug.cgi?id=274574 rdar://128338255 Reviewed by Yusuke Suzuki. Removed a small optimization that was added in 276031@main where we advance two characters when we read a non-BMP character that doesn't match any atoms. 3. (ARM64 only) When we read a non-BMP code point, consisting of two surrogate code units, and we fail to match any atom in the body of a RegExp, we were incrementing the subject string index by 1 and going back to the top of the loop to start matching the pattern again. Now we dedicate a register to hold either 0 or 1 depending on the width of the first character read for that loop iteration. When advancing the index for the next iteration, we add the value of that register to the updated index. This eliminates one iteration through the matching loop for each non-BMP code point that doesn't match. * Source/JavaScriptCore/yarr/YarrJIT.cpp: * Source/JavaScriptCore/yarr/YarrJITRegisters.h: Canonical link: https://commits.webkit.org/279209@main To unsubscribe from these emails, change your notification settings at https://github.com/WebKit/WebKit/settings/notifications _______________________________________________ webkit-changes mailing list webkit-changes@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-changes