Linux LTO with lld from llvm 9
newbie2019 at gmail.com
Thu Oct 10 08:44:32 UTC 2019
On Friday, 4 October 2019 at 09:54:44 UTC, kinke wrote:
> The problem here is that the produced bitcode is v9, but the
> gold plugin is from LLVM v8.0.1. LDC v1.18.0-beta2 features the
> v9 gold plugin; it'll probably also work when updating your
> clang to v9.
Thanks for the explain. I add `-gcc=clang -linker=lld
--flto-binary=/opt/build/llvm/build/lib/libLTO.so` to ldc, but
ldc2 not pass libLTO.so into clang, and the ld.lld still run
with `-plugin /usr/bin/../lib/LLVMgold.so`. how could I use the
new builded libLTO.so instead LLVMgold.so ?
On Friday, 4 October 2019 at 14:50:26 UTC, David Nadlinger wrote:
> Seems like you are trying to use LTO with LDC built against
> LLVM 9.0, but the linker plugin (probably from clang) is built
> against LLVM 8.0? The plugin  is separate from the linker
> ld.gold should generally work fine. Perhaps others can chime in
> as to what the current situation with LLD on Linux is; I
> haven't tried it recently.
Thanks for the explain.
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