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Update interpret step

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This commit is contained in:
kadmin 2020-11-07 00:49:55 +00:00
parent 89f45ed9f3
commit 37a6c04718
3 changed files with 13 additions and 3 deletions
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14
compiler/rustc_mir/src/interpret/step.rs
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@ -119,15 +119,23 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
let dst = {
let dst = self.eval_operand(dst, None)?;
dst.assert_mem_place(self)
let mplace = *dst.assert_mem_place(self);
match mplace.ptr {
Scalar::Ptr(ptr) => ptr,
_ => panic!(),
}
};
let src = {
let src = self.eval_operand(src, None)?;
src.assert_mem_place(self)
let mplace = *src.assert_mem_place(self);
match mplace.ptr {
Scalar::Ptr(ptr) => ptr,
_ => panic!(),
}
};
// Not sure how to convert an MPlaceTy<'_, <M as Machine<'_, '_>>::PointerTag>
// to a pointer, or OpTy to a size
self.memory.copy(src, dst, size, /*nonoverlapping*/ true)?;
self.memory.copy(src, dst, size.layout.layout.size, /*nonoverlapping*/ true)?;
}
// Statements we do not track.

1
compiler/rustc_mir/src/transform/coverage/spans.rs
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@ -687,6 +687,7 @@ pub(super) fn filtered_statement_span(
// Retain spans from all other statements
StatementKind::FakeRead(_, _) // Not including `ForGuardBinding`
| StatementKind::CopyNonOverlapping(..)
| StatementKind::Assign(_)
| StatementKind::SetDiscriminant { .. }
| StatementKind::LlvmInlineAsm(_)

1
compiler/rustc_mir/src/transform/simplify.rs
View File

@ -428,6 +428,7 @@ impl Visitor<'_> for UsedLocals {
fn visit_statement(&mut self, statement: &Statement<'tcx>, location: Location) {
match statement.kind {
StatementKind::LlvmInlineAsm(..)
| StatementKind::CopyNonOverlapping(..)
| StatementKind::Retag(..)
| StatementKind::Coverage(..)
| StatementKind::FakeRead(..)