[Webkit-unassigned] [Bug 135205] New: [Win] Lots of compiler warnings on Windows

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=135205

           Summary: [Win] Lots of compiler warnings on Windows
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: bfulgham at webkit.org


I see a lot of compiler warnings from JavaScriptCore when building on Windows:

LLIntOffsetsExtractor, JavaScriptCore: Configuration: Debug x64
7>c:\projects\webkit\opensource\webkitbuild\debug\include\private\javascriptcore\MacroAssemblerX86_64.h(206): warning C4307: '*' : integral constant overflow
7>c:\projects\webkit\opensource\webkitbuild\debug\include\private\javascriptcore\MacroAssemblerX86_64.h(210): warning C4307: '*' : integral constant overflow

JavaScriptCore: Configuration: Debug x64
9>c:\projects\webkit\opensource\source\javascriptcore\dfg\DFGEdge.h(208): warning C4805: '|' : unsafe mix of type 'uintptr_t' and type 'bool' in operation (..\dfg\DFGAbstractValue.cpp)
9>c:\projects\webkit\opensource\source\javascriptcore\dfg\DFGCommon.h(251): warning C4805: '==' : unsafe mix of type 'bool' and type 'int' in operation (..\dfg\DFGAbstractValue.cpp)
9>          c:\projects\webkit\opensource\source\javascriptcore\dfg\DFGVariableAccessData.h(74) : see reference to function template instantiation 'bool JSC::DFG::checkAndSet<bool,int>(T &,U)' being compiled
9>          with
9>          [
9>              T=bool
9>  ,            U=int
9>          ]
9>c:\projects\webkit\opensource\source\javascriptcore\dfg\dfgnodeflags.h(112): warning C4701: potentially uninitialized local variable 'mask' used
9>c:\projects\webkit\opensource\source\javascriptcore\dfg\dfgnodeflags.h(129): warning C4701: potentially uninitialized local variable 'mask' used
9>c:\projects\webkit\opensource\source\javascriptcore\runtime\jsdataviewprototype.cpp(136): warning C4701: potentially uninitialized local variable 'u' used

These messages turn up hundreds of times in the build log, making it difficult to find 'real' warnings.

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