In file included from C:/PSDev/webkit/WebKitBuild/Release/JavaScriptCore/DerivedSources/unified-sources/UnifiedSource-ee8a7a7a-4.cpp:8: In file included from C:/PSDev/webkit/Source/JavaScriptCore\heap/IncrementalSweeper.cpp:40: In file included from C:/PSDev/webkit/WebKitBuild/Release/bmalloc/Headers\bmalloc/pas_thread_local_cache.h:38: In file included from C:/PSDev/webkit/WebKitBuild/Release/bmalloc/Headers\bmalloc/pas_malloc_stack_logging.h:32: In file included from C:/PSDev/webkit/WebKitBuild/Release/bmalloc/Headers\bmalloc/pas_root.h:29: In file included from C:/PSDev/webkit/WebKitBuild/Release/bmalloc/Headers\bmalloc/pas_heap.h:32: In file included from C:/PSDev/webkit/WebKitBuild/Release/bmalloc/Headers\bmalloc/pas_segregated_heap.h:45: C:/PSDev/webkit/WebKitBuild/Release/bmalloc/Headers\bmalloc/pas_segregated_page.h:365:12: error: cast from 'pas_page_base *' to 'pas_segregated_page *' increases required alignment from 1 to 16 [-Werror,-Wcast-align] 1 error generated.
Committed 263739@main (6c0f1ca12c20): <https://commits.webkit.org/263739@main> Reviewed commits have been landed. Closing PR #13517 and removing active labels.
<rdar://problem/108971398>
BTW, suppressing -Wcast-align indicates a bug in the code. I found some Linux kernel documentation at https://www.kernel.org/doc/Documentation/unaligned-memory-access.txt. Depending on architecture, this may result in (a) performance penalty, or (b) incorrect code generation.