[llvm-bugs] [Bug 36125] New: Clang-cl /std:c++14 does not inline constexpr constants

via llvm-bugs llvm-bugs at lists.llvm.org
Sun Jan 28 06:39:55 PST 2018


https://bugs.llvm.org/show_bug.cgi?id=36125

            Bug ID: 36125
           Summary: Clang-cl /std:c++14 does not inline constexpr
                    constants
           Product: clang
           Version: 5.0
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: jvapen at gmail.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 19759
  --> https://bugs.llvm.org/attachment.cgi?id=19759&action=edit
Reproduction

MSVC 2015 seems to implement inline constexpr variables when compiling with
/std:c++14 (default)

When compiling the same source with clang-cl, this behavior is only available
when using /std:c++latest (or std:c++17)

See reproduction in attachment, where the MSVC2015 case produces an executable,
while Clang gives an error.

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