Add LLVM patch

[Keno]

Adds the patch from JuliaLang/julia#34860.

[vchuravy]

Will this be backported to Julia 1.4? If so we need this for LLVM 8 as well.

[giordano]

Echoing here a comment from Slack: the directory L/LLVM/v9 should be moved to L/LLVM/LLVM@9 (or also L/LLVM/LLVM@v9 if you prefer), like the structure of OpenBLAS. This is the reason of the failure to upload the artifacts. No need to rename the other LLVM versions now, otherwise they'll trigger a rebuild.

[staticfloat]

No need to rename the other LLVM versions now, otherwise they'll trigger a rebuild.

I'm going to push a commit to do the renames now, then cancel the resultant enormous CI job. That way we won't forget to do this in the future.

[giordano]

or use [skip ci] 😉

[Keno]

How do we move this forward now that the rename is done? Can I trigger CI again?

[giordano]

Yes, rename L/LLVM/v9 to L/LLVM/LLVM@9

[staticfloat]

Only on win32:

[01:55:14] lib/liblldCOFF.a(Chunks.cpp.obj):Chunks.cpp:(.text$_ZNK3lld4coff15NonSectionChunk14getSectionNameEv+0x0): multiple definition of `lld::coff::NonSectionChunk::getSectionName() const'
[01:55:14] lib/liblldCOFF.a(Writer.cpp.obj):Writer.cpp:(.text$_ZNK3lld4coff15NonSectionChunk14getSectionNameEv+0x0): first defined here
[01:55:14] lib/liblldCOFF.a(DLL.cpp.obj):DLL.cpp:(.text$_ZNK3lld4coff15NonSectionChunk14getSectionNameEv+0x0): multiple definition of `lld::coff::NonSectionChunk::getSectionName() const'
[01:55:14] lib/liblldCOFF.a(Writer.cpp.obj):Writer.cpp:(.text$_ZNK3lld4coff15NonSectionChunk14getSectionNameEv+0x0): first defined here
[01:55:14] lib/liblldMachO.a(ArchHandler_arm64.cpp.obj):ArchHandler_arm64.cpp:(.text$_ZN3lld6mach_o11ArchHandler10createShimERNS0_9MachOFileEbRKNS_11DefinedAtomE+0x0): multiple definition of `lld::mach_o::ArchHandler::createShim(lld::mach_o::MachOFile&, bool, lld::DefinedAtom const&)'
[01:55:14] lib/liblldMachO.a(ArchHandler.cpp.obj):ArchHandler.cpp:(.text$_ZN3lld6mach_o11ArchHandler10createShimERNS0_9MachOFileEbRKNS_11DefinedAtomE+0x0): first defined here
[01:55:14] lib/liblldMachO.a(ArchHandler_x86.cpp.obj):ArchHandler_x86.cpp:(.text$_ZN3lld6mach_o11ArchHandler10createShimERNS0_9MachOFileEbRKNS_11DefinedAtomE+0x0): multiple definition of `lld::mach_o::ArchHandler::createShim(lld::mach_o::MachOFile&, bool, lld::DefinedAtom const&)'
[01:55:14] lib/liblldMachO.a(ArchHandler.cpp.obj):ArchHandler.cpp:(.text$_ZN3lld6mach_o11ArchHandler10createShimERNS0_9MachOFileEbRKNS_11DefinedAtomE+0x0): first defined here
[01:55:14] lib/liblldMachO.a(ArchHandler_x86_64.cpp.obj):ArchHandler_x86_64.cpp:(.text$_ZN3lld6mach_o11ArchHandler10createShimERNS0_9MachOFileEbRKNS_11DefinedAtomE+0x0): multiple definition of `lld::mach_o::ArchHandler::createShim(lld::mach_o::MachOFile&, bool, lld::DefinedAtom const&)'
[01:55:14] lib/liblldMachO.a(ArchHandler.cpp.obj):ArchHandler.cpp:(.text$_ZN3lld6mach_o11ArchHandler10createShimERNS0_9MachOFileEbRKNS_11DefinedAtomE+0x0): first defined here

[staticfloat]

And only on -cxx11? That's gotta be a ccache error or something. I'll try re-running.

[staticfloat]

Great. I'm gonna merge.