[Webkit-unassigned] [Bug 280029] New: [Win] clang-cl 19 reports "error: unknown token in expression" for inline asm

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=280029

            Bug ID: 280029
           Summary: [Win] clang-cl 19 reports "error: unknown token in
                    expression" for inline asm
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Keywords: DoNotImportToRadar
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Hironori.Fujii at sony.com

LLVM clang-cl 19.1.0 can't compile StackPointer.cpp and LowLevelInterpreter.cpp. clang-cl 18 can compile.

FAILED: Source/WTF/wtf/CMakeFiles/WTF.dir/StackPointer.cpp.obj
C:\PROGRA~1\LLVM\bin\clang-cl.exe  /nologo -TP -DBUILDING_WEBKIT=1 -DBUILDING_WITH_CMAKE=1 -DBUILDING_WTF -DHAVE_CONFIG_H=1 -DNOCRYPT -DNOMINMAX -DNTDDI_VERSION=0x0A000006 -DPAS_BMALLOC=1 -DUNICODE -D_CRT_SECURE_NO_WARNINGS -D_ENABLE_EXTENDED_ALIGNED_STORAGE -D_HAS_EXCEPTIONS=0 -D_UNICODE -D_WIN32_WINNT=0x0A00 -D_WINDOWS -D_WINSOCKAPI_="" -IC:\webkit\wb\WebKitBuild\Debug -IC:\webkit\wb\WebKitBuild\Debug\WTF\DerivedSources -IC:\webkit\wb\Source\WTF -IC:\webkit\wb\Source\WTF\wtf -IC:\webkit\wb\Source\WTF\wtf\dtoa -IC:\webkit\wb\Source\WTF\wtf\fast_float -IC:\webkit\wb\Source\WTF\wtf\persistence -IC:\webkit\wb\Source\WTF\wtf\simdutf -IC:\webkit\wb\Source\WTF\wtf\text -IC:\webkit\wb\Source\WTF\wtf\text\icu -IC:\webkit\wb\Source\WTF\wtf\threads -IC:\webkit\wb\Source\WTF\wtf\unicode -imsvcC:\webkit\wb\WebKitLibraries\win\include /W4 -fcolor-diagnostics -Wno-noexcept-type -Wno-psabi -Wno-misleading-indentation -Wno-parentheses-equality -Qunused-arguments -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align -Wno-deprecated-declarations -Wno-sign-compare /DWIN32 /D_WINDOWS  -fno-strict-aliasing /Zi /Ob0 /Od /RTC1 -std:c++latest -MD /Zi /GS /EHa- /EHc- /EHs- /fp:except- /GR- /analyze- /bigobj /utf-8 /validate-charset /WX /showIncludes /FoSource\WTF\wtf\CMakeFiles\WTF.dir\StackPointer.cpp.obj /FdSource\WTF\wtf\CMakeFiles\WTF.dir\ -c -- C:\webkit\wb\Source\WTF\wtf\StackPointer.cpp
<inline asm>(4,6): error: unknown token in expression
    4 | movq %rsp, %rax
      |      ^
<inline asm>(5,6): error: unknown token in expression
    5 | addq $40, %rax
      |      ^
2 errors generated.

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