Nicholas Wilson

superseded by #4257

Nice. I'd split 7df3b654eb167eef270f85745930371e80474f07 into its own PR and merge it straight away since it is unrelated to pivoting and very useful for improving the speed.

Fixed by https://github.com/dlang/phobos/pull/8995

``` generated/windows/debug/64/linkD.exe LINK : generated\windows\debug\64\dynamiccast.exe not found or not built by the last incremental link; performing full link LINK : warning LNK4217: symbol '_D11dynamiccast1C7__ClassZ' defined in 'dynamiccast.obj' is imported by...

Is this supposed to contain 5 commits, 4 of which look unrelated?

does this fix anything? Why does it not have a test suite change?

this appears to segfault on `AuburnSounds/interl-intrinsics`

cc @WalterBright about the backend inline segfault hitting [this assert](https://github.com/dlang/dmd/blob/master/compiler/src/dmd/backend/cgxmm.d#L1476) on build kite `AuburnSounds/interl-intrinsics`

merged dependant PR

Hmm this looks to have stuffed up linking in the standard library by default.