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Support tail calls in mir via TerminatorKind::TailCall

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This commit is contained in:
Maybe Waffle 2024-02-15 19:54:37 +00:00 • committed by Maybe Lapkin
parent e2cf31a614
commit 484152d562
41 changed files with 328 additions and 88 deletions
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1
compiler/rustc_codegen_ssa/src/mir/analyze.rs
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@ -281,6 +281,7 @@ pub fn cleanup_kinds(mir: &mir::Body<'_>) -> IndexVec<mir::BasicBlock, CleanupKi
| TerminatorKind::UnwindResume
| TerminatorKind::UnwindTerminate(_)
| TerminatorKind::Return
| TerminatorKind::TailCall { .. }
| TerminatorKind::CoroutineDrop
| TerminatorKind::Unreachable
| TerminatorKind::SwitchInt { .. }

7
compiler/rustc_codegen_ssa/src/mir/block.rs
View file

@ -1389,6 +1389,13 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
fn_span,
mergeable_succ(),
),
mir::TerminatorKind::TailCall { .. } => {
// FIXME(explicit_tail_calls): implement tail calls in ssa backend
span_bug!(
terminator.source_info.span,
"`TailCall` terminator is not yet supported by `rustc_codegen_ssa`"
)
}
mir::TerminatorKind::CoroutineDrop | mir::TerminatorKind::Yield { .. } => {
bug!("coroutine ops in codegen")
}