February 22, 2019
https://issues.dlang.org/show_bug.cgi?id=19693

          Issue ID: 19693
           Summary: core.bitop.bitswap fails to compile with -inline
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: r.sagitario@gmx.de

Compile with "dmd -inline":

import core.bitop;
void main()
{
    ulong y = 0x12345678;
    ulong x = bitswap(y);
}

/dlang/dmd/linux/bin64/../../src/druntime/import/core/bitop.d(817): Error: function `core.bitop.bitswap` cannot inline function

Could also be considered a druntime issue as it uses pragma(inline,true).

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