[clang] [lld] [llvm] [llvm][lld][clang] Delay initializing TargetOptions in LTO builds until a Triple is available (PR #179509)

[Nikita Popov via cfe-commits]

nikic wrote:

I think it would make sense to add a triple to the test.

Though in that case we should probably also fail a bit more gracefully (as in, not with an assert) if the triple is missing. That should be a reportFatalUsageError.

https://github.com/llvm/llvm-project/pull/179509