Toolset update: VS 2022 17.6 Preview 3

[StephanTLavavej]

• Use PowerShell 7.3.3.
• Drop the Spectre libs.
  • We don't need them for testing.
• Drop unused InstallPath and Nickname parameters.
• Drop unused $ReleaseInPath and $Sku variables.
• Use Update-AzConfig to silence breaking change warnings.
  • The previous method stopped working.
• Enable trusted launch (secure boot), supported as of 2023-03-20.
• Python 3.11.3.
• New pool.
• VS 2022 17.6 Preview 3.
• Require CMake 3.26.0.
• Pass my new /quiet option to ml[64].
  • This makes the STL's build output pretty again.
• Remove workarounds for DevCom-10265322 "Equality comparison with reversed order of operator== is sometimes buggy".
• Remove workarounds for VSO-1734935 "Copy elision fails in permissive mode".
  • Now we don't need the is_permissive detection machinery.
• Remove workaround for DevCom-10247495 "MSVC forces us to export some internal enumeration functions for working with C++ modules".
• Remove workaround for VSO-1582358 "Standard Library Modules: chrono formatting emits bogus error C3861: '_Fill_tm': identifier not found".
• Remove workarounds for VSO-1592329 "Standard Library Modules: Parallel sort() emits bogus error C2065: '_Atomic_counter_t': undeclared identifier".
• Remove workaround for VSO-1705654 "Standard Library Modules: /analyze ICE".
• Remove workaround for VSO-1726729 "REPORTED: EDG rejects constexpr vector insert() in debug mode with 'attempt to access run-time storage' errors".
• Remove workarounds for VSO-1161663 "REPORTED: [Feedback] EDG constexpr rejects left <= right when null pointers are passed by reference".
• Remove numerous workarounds for VSO-1726722 "REPORTED: EDG rejects constexpr string/vector in debug mode with 'attempt to access expired storage' errors, part 2".
• Fully remove workaround for VSO-1592409 "Standard Library Modules: source_location::column() misbehaves in user headers".
• Simplify <atomic>: intrin0.inl.h has been updated to always define _HAS_ARM64_LOAD_ACQUIRE.
• Keep 5 workarounds for VSO-1799670 "EDG rejects constexpr vector in debug mode with 'attempt to access expired storage' errors, part 3".
• Fix signed/unsigned mismatch warnings for ARM64 __stlr.
  • They're declared as:

    __MACHINEARM64(void __stlr8(volatile unsigned __int8 * _Target, unsigned __int8 _Value))
    __MACHINEARM64(void __stlr16(volatile unsigned __int16 * _Target, unsigned __int16 _Value))
    __MACHINEARM64(void __stlr32(volatile unsigned __int32 * _Target, unsigned __int32 _Value))
    __MACHINEARM64(void __stlr64(volatile unsigned __int64 * _Target, unsigned __int64 _Value))

    So we need to static_cast the _Desired value.
• Fix signed/unsigned mismatch warnings for ARM64 __load_acquire.
  • They're declared as:

    __MACHINEARM64(unsigned __int8 __load_acquire8(const volatile unsigned __int8 * _Target))
    __MACHINEARM64(unsigned __int16 __load_acquire16(const volatile unsigned __int16 * _Target))
    __MACHINEARM64(unsigned __int32 __load_acquire32(const volatile unsigned __int32 * _Target))
    __MACHINEARM64(unsigned __int64 __load_acquire64(const volatile unsigned __int64 * _Target))

    We need to static_cast the return value to match __iso_volatile_load:

    __MACHINE(__int8 __iso_volatile_load8(const volatile __int8 *))
    __MACHINE(__int16 __iso_volatile_load16(const volatile __int16 *))
    __MACHINE(__int32 __iso_volatile_load32(const volatile __int32 *))
    __MACHINE(__int64 __iso_volatile_load64(const volatile __int64 *))

• <atomic>: Clang ARM64 lacks __load_acquire/__stlr.
  • I've filed Consider implementing ARM64 __load_acquire/__stlr intrinsics llvm/llvm-project#62103 to request support.
• Improve bug-report.md Markdown.
  • Use headers instead of bold text.
    • This creates clearer sections, and prevents the headers from flowing together with following text.
  • Use + for nested bullet points.
    • This makes the structure a bit easier to see.
  • Remove a newline between "Option 1" and "Option 2" so the bulleted list is formatted densely.
• Update bug-report.md for VS 2022, add /std:c++latest.
  • This adds /std:c++latest to the example repro. Although it displays a lengthy notice, I believe it's valuable to include here. (Many bug reports will need it and it's easy for people new to the command line to forget it.)
  • This also updates the example versions to VS 2022 17.6 Preview 3, since we hadn't updated them since open-sourcing.
  • Finally, this shows how the Copy Info button can be used, and mentions that "we need only the first two lines".

[StephanTLavavej]

/azp run

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[StephanTLavavej]

I'm mirroring this to the MSVC-internal repo - please notify me if any further changes are pushed.