diff options
| author | Ralf Jung <post@ralfj.de> | 2023-08-19 14:20:41 +0200 |
|---|---|---|
| committer | Ralf Jung <post@ralfj.de> | 2023-08-20 15:52:40 +0200 |
| commit | ac3bca24b72ff31c6059c537bbc913c60acfaa40 (patch) | |
| tree | 6a7caeadfb758e5aa29136d26a2cade765449f64 /compiler/rustc_const_eval/src | |
| parent | 788fd44a3be128243ac48539d23235a3d91d9a85 (diff) | |
interpret: have assert_* intrinsics call the panic machinery instead of a direct abort
Diffstat (limited to 'compiler/rustc_const_eval/src')
4 files changed, 16 insertions, 21 deletions
diff --git a/compiler/rustc_const_eval/src/const_eval/error.rs b/compiler/rustc_const_eval/src/const_eval/error.rs index d39a7e8a192..f146b93ff0c 100644 --- a/compiler/rustc_const_eval/src/const_eval/error.rs +++ b/compiler/rustc_const_eval/src/const_eval/error.rs @@ -18,7 +18,6 @@ pub enum ConstEvalErrKind { ModifiedGlobal, AssertFailure(AssertKind<ConstInt>), Panic { msg: Symbol, line: u32, col: u32, file: Symbol }, - Abort(String), } impl MachineStopType for ConstEvalErrKind { @@ -30,7 +29,6 @@ impl MachineStopType for ConstEvalErrKind { ModifiedGlobal => const_eval_modified_global, Panic { .. } => const_eval_panic, AssertFailure(x) => x.diagnostic_message(), - Abort(msg) => msg.to_string().into(), } } fn add_args( @@ -39,7 +37,7 @@ impl MachineStopType for ConstEvalErrKind { ) { use ConstEvalErrKind::*; match *self { - ConstAccessesStatic | ModifiedGlobal | Abort(_) => {} + ConstAccessesStatic | ModifiedGlobal => {} AssertFailure(kind) => kind.add_args(adder), Panic { msg, line, col, file } => { adder("msg".into(), msg.into_diagnostic_arg()); diff --git a/compiler/rustc_const_eval/src/const_eval/machine.rs b/compiler/rustc_const_eval/src/const_eval/machine.rs index b740b79d162..cf010864018 100644 --- a/compiler/rustc_const_eval/src/const_eval/machine.rs +++ b/compiler/rustc_const_eval/src/const_eval/machine.rs @@ -464,6 +464,13 @@ impl<'mir, 'tcx> interpret::Machine<'mir, 'tcx> for CompileTimeInterpreter<'mir, Ok(Some((ecx.load_mir(instance.def, None)?, orig_instance))) } + fn panic_nounwind(ecx: &mut InterpCx<'mir, 'tcx, Self>, msg: &str) -> InterpResult<'tcx> { + let msg = Symbol::intern(msg); + let span = ecx.find_closest_untracked_caller_location(); + let (file, line, col) = ecx.location_triple_for_span(span); + return Err(ConstEvalErrKind::Panic { msg, file, line, col }.into()); + } + fn call_intrinsic( ecx: &mut InterpCx<'mir, 'tcx, Self>, instance: ty::Instance<'tcx>, @@ -584,10 +591,6 @@ impl<'mir, 'tcx> interpret::Machine<'mir, 'tcx> for CompileTimeInterpreter<'mir, Err(ConstEvalErrKind::AssertFailure(err).into()) } - fn abort(_ecx: &mut InterpCx<'mir, 'tcx, Self>, msg: String) -> InterpResult<'tcx, !> { - Err(ConstEvalErrKind::Abort(msg).into()) - } - fn binary_ptr_op( _ecx: &InterpCx<'mir, 'tcx, Self>, _bin_op: mir::BinOp, diff --git a/compiler/rustc_const_eval/src/interpret/intrinsics.rs b/compiler/rustc_const_eval/src/interpret/intrinsics.rs index f22cd919c36..d6ca6fe73a6 100644 --- a/compiler/rustc_const_eval/src/interpret/intrinsics.rs +++ b/compiler/rustc_const_eval/src/interpret/intrinsics.rs @@ -125,15 +125,9 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { ) -> InterpResult<'tcx, bool> { let instance_args = instance.args; let intrinsic_name = self.tcx.item_name(instance.def_id()); - - // First handle intrinsics without return place. - let ret = match ret { - None => match intrinsic_name { - sym::abort => M::abort(self, "the program aborted execution".to_owned())?, - // Unsupported diverging intrinsic. - _ => return Ok(false), - }, - Some(p) => p, + let Some(ret) = ret else { + // We don't support any intrinsic without return place. + return Ok(false); }; match intrinsic_name { @@ -410,7 +404,9 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { ValidityRequirement::Uninit => bug!("assert_uninit_valid doesn't exist"), }; - M::abort(self, msg)?; + M::panic_nounwind(self, &msg)?; + // Skip the `go_to_block` at the end. + return Ok(true); } } sym::simd_insert => { diff --git a/compiler/rustc_const_eval/src/interpret/machine.rs b/compiler/rustc_const_eval/src/interpret/machine.rs index 15f2dd17bf5..d3c73b896c0 100644 --- a/compiler/rustc_const_eval/src/interpret/machine.rs +++ b/compiler/rustc_const_eval/src/interpret/machine.rs @@ -218,10 +218,8 @@ pub trait Machine<'mir, 'tcx: 'mir>: Sized { unwind: mir::UnwindAction, ) -> InterpResult<'tcx>; - /// Called to abort evaluation. - fn abort(_ecx: &mut InterpCx<'mir, 'tcx, Self>, _msg: String) -> InterpResult<'tcx, !> { - throw_unsup_format!("aborting execution is not supported") - } + /// Called to trigger a non-unwinding panic. + fn panic_nounwind(_ecx: &mut InterpCx<'mir, 'tcx, Self>, msg: &str) -> InterpResult<'tcx>; /// Called when unwinding reached a state where execution should be terminated. fn unwind_terminate(_ecx: &mut InterpCx<'mir, 'tcx, Self>) -> InterpResult<'tcx>; |
