Skip to content

move processing of source_scope_data into MutVisitor's impl of Integrator when inline #97142

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
bors merged 1 commit into from
May 20, 2022
Merged

move processing of source_scope_data into MutVisitor's impl of Integrator when inline #97142

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
55 changes: 27 additions & 28 deletions compiler/rustc_mir_transform/src/inline.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -555,7 +555,8 @@ impl<'tcx> Inliner<'tcx> {
new_scopes: SourceScope::new(caller_body.source_scopes.len())..,
new_blocks: BasicBlock::new(caller_body.basic_blocks().len())..,
destination: dest,
return_block: callsite.target,
callsite_scope: caller_body.source_scopes[callsite.source_info.scope].clone(),
callsite,
cleanup_block: cleanup,
in_cleanup_block: false,
tcx: self.tcx,
Expand All @@ -567,31 +568,6 @@ impl<'tcx> Inliner<'tcx> {
// (or existing ones, in a few special cases) in the caller.
integrator.visit_body(&mut callee_body);

for scope in &mut callee_body.source_scopes {
// FIXME(eddyb) move this into a `fn visit_scope_data` in `Integrator`.
if scope.parent_scope.is_none() {
let callsite_scope = &caller_body.source_scopes[callsite.source_info.scope];

// Attach the outermost callee scope as a child of the callsite
// scope, via the `parent_scope` and `inlined_parent_scope` chains.
scope.parent_scope = Some(callsite.source_info.scope);
assert_eq!(scope.inlined_parent_scope, None);
scope.inlined_parent_scope = if callsite_scope.inlined.is_some() {
Some(callsite.source_info.scope)
} else {
callsite_scope.inlined_parent_scope
};

// Mark the outermost callee scope as an inlined one.
assert_eq!(scope.inlined, None);
scope.inlined = Some((callsite.callee, callsite.source_info.span));
} else if scope.inlined_parent_scope.is_none() {
// Make it easy to find the scope with `inlined` set above.
scope.inlined_parent_scope =
Some(integrator.map_scope(OUTERMOST_SOURCE_SCOPE));
}
}

// If there are any locals without storage markers, give them storage only for the
// duration of the call.
for local in callee_body.vars_and_temps_iter() {
Expand Down Expand Up @@ -787,7 +763,8 @@ struct Integrator<'a, 'tcx> {
new_scopes: RangeFrom<SourceScope>,
new_blocks: RangeFrom<BasicBlock>,
destination: Place<'tcx>,
return_block: Option<BasicBlock>,
callsite_scope: SourceScopeData<'tcx>,
callsite: &'a CallSite<'tcx>,
cleanup_block: Option<BasicBlock>,
in_cleanup_block: bool,
tcx: TyCtxt<'tcx>,
Expand Down Expand Up @@ -833,6 +810,28 @@ impl<'tcx> MutVisitor<'tcx> for Integrator<'_, 'tcx> {
*local = self.map_local(*local);
}

fn visit_source_scope_data(&mut self, scope_data: &mut SourceScopeData<'tcx>) {
self.super_source_scope_data(scope_data);
if scope_data.parent_scope.is_none() {
// Attach the outermost callee scope as a child of the callsite
// scope, via the `parent_scope` and `inlined_parent_scope` chains.
scope_data.parent_scope = Some(self.callsite.source_info.scope);
assert_eq!(scope_data.inlined_parent_scope, None);
scope_data.inlined_parent_scope = if self.callsite_scope.inlined.is_some() {
Some(self.callsite.source_info.scope)
} else {
self.callsite_scope.inlined_parent_scope
};

// Mark the outermost callee scope as an inlined one.
assert_eq!(scope_data.inlined, None);
scope_data.inlined = Some((self.callsite.callee, self.callsite.source_info.span));
} else if scope_data.inlined_parent_scope.is_none() {
// Make it easy to find the scope with `inlined` set above.
scope_data.inlined_parent_scope = Some(self.map_scope(OUTERMOST_SOURCE_SCOPE));
}
}

fn visit_source_scope(&mut self, scope: &mut SourceScope) {
*scope = self.map_scope(*scope);
}
Expand Down Expand Up @@ -939,7 +938,7 @@ impl<'tcx> MutVisitor<'tcx> for Integrator<'_, 'tcx> {
}
}
TerminatorKind::Return => {
terminator.kind = if let Some(tgt) = self.return_block {
terminator.kind = if let Some(tgt) = self.callsite.target {
TerminatorKind::Goto { target: tgt }
} else {
TerminatorKind::Unreachable
Expand Down