8d1083e319
We had already reverted the change on stable back in PR #83412. Since then, we've had some movement on issue #83139, but not a 100% fix. But also since then, we had bug reported, issue #84667, that looks like outright codegen breakage, rather than problems confined to debuginfo issues. So we are reverting PR #77885 on stable and beta. We'll reland PR #77885 (or some variant) switching back to an LLVM-dependent selection of out-of-line call vs inline-asm, after these other issues have been resolved.
rustc_target contains some very low-level details that are
specific to different compilation targets and so forth.
For more information about how rustc works, see the rustc dev guide.