New upstream version 1.70.0+dfsg1

[rustc.git] / compiler / rustc_const_eval / src / interpret / machine.rs

diff --git a/compiler/rustc_const_eval/src/interpret/machine.rs b/compiler/rustc_const_eval/src/interpret/machine.rs
index 92fa59aec6e5f0fc462beb0babf219d53f5026ee..0291cca7378a4543b3da851a6bbe2550a2f4a6be 100644 (file)
--- a/compiler/rustc_const_eval/src/interpret/machine.rs
+++ b/compiler/rustc_const_eval/src/interpret/machine.rs
@@ -8,6 +8,7 @@ use std::hash::Hash;
 
 use rustc_ast::{InlineAsmOptions, InlineAsmTemplatePiece};
 use rustc_middle::mir;
+use rustc_middle::ty::layout::TyAndLayout;
 use rustc_middle::ty::{self, Ty, TyCtxt};
 use rustc_span::def_id::DefId;
 use rustc_target::abi::{Align, Size};
@@ -17,7 +18,7 @@ use crate::const_eval::CheckAlignment;
 
 use super::{
     AllocBytes, AllocId, AllocRange, Allocation, ConstAllocation, Frame, ImmTy, InterpCx,
-    InterpResult, MemoryKind, OpTy, Operand, PlaceTy, Pointer, Provenance, Scalar, StackPopUnwind,
+    InterpResult, MemoryKind, OpTy, Operand, PlaceTy, Pointer, Provenance, Scalar,
 };
 
 /// Data returned by Machine::stack_pop,
@@ -145,8 +146,8 @@ pub trait Machine<'mir, 'tcx>: Sized {
         check: CheckAlignment,
     ) -> InterpResult<'tcx, ()>;
 
-    /// Whether to enforce the validity invariant
-    fn enforce_validity(ecx: &InterpCx<'mir, 'tcx, Self>) -> bool;
+    /// Whether to enforce the validity invariant for a specific layout.
+    fn enforce_validity(ecx: &InterpCx<'mir, 'tcx, Self>, layout: TyAndLayout<'tcx>) -> bool;
 
     /// Whether function calls should be [ABI](CallAbi)-checked.
     fn enforce_abi(_ecx: &InterpCx<'mir, 'tcx, Self>) -> bool {
@@ -155,7 +156,7 @@ pub trait Machine<'mir, 'tcx>: Sized {
 
     /// Whether Assert(OverflowNeg) and Assert(Overflow) MIR terminators should actually
     /// check for overflow.
-    fn ignore_checkable_overflow_assertions(_ecx: &InterpCx<'mir, 'tcx, Self>) -> bool;
+    fn ignore_optional_overflow_checks(_ecx: &InterpCx<'mir, 'tcx, Self>) -> bool;
 
     /// Entry point for obtaining the MIR of anything that should get evaluated.
     /// So not just functions and shims, but also const/static initializers, anonymous
@@ -184,7 +185,7 @@ pub trait Machine<'mir, 'tcx>: Sized {
         args: &[OpTy<'tcx, Self::Provenance>],
         destination: &PlaceTy<'tcx, Self::Provenance>,
         target: Option<mir::BasicBlock>,
-        unwind: StackPopUnwind,
+        unwind: mir::UnwindAction,
     ) -> InterpResult<'tcx, Option<(&'mir mir::Body<'tcx>, ty::Instance<'tcx>)>>;
 
     /// Execute `fn_val`. It is the hook's responsibility to advance the instruction
@@ -196,7 +197,7 @@ pub trait Machine<'mir, 'tcx>: Sized {
         args: &[OpTy<'tcx, Self::Provenance>],
         destination: &PlaceTy<'tcx, Self::Provenance>,
         target: Option<mir::BasicBlock>,
-        unwind: StackPopUnwind,
+        unwind: mir::UnwindAction,
     ) -> InterpResult<'tcx>;
 
     /// Directly process an intrinsic without pushing a stack frame. It is the hook's
@@ -207,17 +208,17 @@ pub trait Machine<'mir, 'tcx>: Sized {
         args: &[OpTy<'tcx, Self::Provenance>],
         destination: &PlaceTy<'tcx, Self::Provenance>,
         target: Option<mir::BasicBlock>,
-        unwind: StackPopUnwind,
+        unwind: mir::UnwindAction,
     ) -> InterpResult<'tcx>;
 
     /// Called to evaluate `Assert` MIR terminators that trigger a panic.
     fn assert_panic(
         ecx: &mut InterpCx<'mir, 'tcx, Self>,
         msg: &mir::AssertMessage<'tcx>,
-        unwind: Option<mir::BasicBlock>,
+        unwind: mir::UnwindAction,
     ) -> InterpResult<'tcx>;
 
-    /// Called to evaluate `Abort` MIR terminator.
+    /// Called to abort evaluation.
     fn abort(_ecx: &mut InterpCx<'mir, 'tcx, Self>, _msg: String) -> InterpResult<'tcx, !> {
         throw_unsup_format!("aborting execution is not supported")
     }
@@ -474,7 +475,7 @@ pub macro compile_time_machine(<$mir: lifetime, $tcx: lifetime>) {
     }
 
     #[inline(always)]
-    fn ignore_checkable_overflow_assertions(_ecx: &InterpCx<$mir, $tcx, Self>) -> bool {
+    fn ignore_optional_overflow_checks(_ecx: &InterpCx<$mir, $tcx, Self>) -> bool {
         false
     }
 
@@ -486,7 +487,7 @@ pub macro compile_time_machine(<$mir: lifetime, $tcx: lifetime>) {
         _args: &[OpTy<$tcx>],
         _destination: &PlaceTy<$tcx, Self::Provenance>,
         _target: Option<mir::BasicBlock>,
-        _unwind: StackPopUnwind,
+        _unwind: mir::UnwindAction,
     ) -> InterpResult<$tcx> {
         match fn_val {}
     }