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authorbors <bors@rust-lang.org>2023-03-16 19:59:56 +0000
committerbors <bors@rust-lang.org>2023-03-16 19:59:56 +0000
commit511364e7874dba9649a264100407e4bffe7b5425 (patch)
treea898f628c25fbe57e67d622dc0888c23ed2d7430 /compiler/rustc_const_eval/src
parente386217dd996d293b3bde2285f6f5f4f502d7c17 (diff)
parent2adf2cd2f743e13d79fd4669bd6f673023a243f2 (diff)
Auto merge of #108944 - cjgillot:clear-local-info, r=oli-obk
Wrap the whole LocalInfo in ClearCrossCrate.

MIR contains a lot of information about locals. The primary purpose of this information is the quality of borrowck diagnostics.

This PR aims to drop this information after MIR analyses are finished, ie. starting from post-cleanup runtime MIR.
Diffstat (limited to 'compiler/rustc_const_eval/src')
-rw-r--r--compiler/rustc_const_eval/src/transform/check_consts/check.rs2
-rw-r--r--compiler/rustc_const_eval/src/transform/check_consts/ops.rs2
-rw-r--r--compiler/rustc_const_eval/src/transform/promote_consts.rs5
3 files changed, 5 insertions, 4 deletions
diff --git a/compiler/rustc_const_eval/src/transform/check_consts/check.rs b/compiler/rustc_const_eval/src/transform/check_consts/check.rs
index db55dbc2bfd..f775b479667 100644
--- a/compiler/rustc_const_eval/src/transform/check_consts/check.rs
+++ b/compiler/rustc_const_eval/src/transform/check_consts/check.rs
@@ -643,7 +643,7 @@ impl<'tcx> Visitor<'tcx> for Checker<'_, 'tcx> {
                 if base_ty.is_unsafe_ptr() {
                     if proj_base.is_empty() {
                         let decl = &self.body.local_decls[place_local];
-                        if let Some(box LocalInfo::StaticRef { def_id, .. }) = decl.local_info {
+                        if let LocalInfo::StaticRef { def_id, .. } = *decl.local_info() {
                             let span = decl.source_info.span;
                             self.check_static(def_id, span);
                             return;
diff --git a/compiler/rustc_const_eval/src/transform/check_consts/ops.rs b/compiler/rustc_const_eval/src/transform/check_consts/ops.rs
index e586720a0d0..c0f5b3725b3 100644
--- a/compiler/rustc_const_eval/src/transform/check_consts/ops.rs
+++ b/compiler/rustc_const_eval/src/transform/check_consts/ops.rs
@@ -704,7 +704,7 @@ pub mod ty {
 
         fn importance(&self) -> DiagnosticImportance {
             match self.0 {
-                mir::LocalKind::Var | mir::LocalKind::Temp => DiagnosticImportance::Secondary,
+                mir::LocalKind::Temp => DiagnosticImportance::Secondary,
                 mir::LocalKind::ReturnPointer | mir::LocalKind::Arg => {
                     DiagnosticImportance::Primary
                 }
diff --git a/compiler/rustc_const_eval/src/transform/promote_consts.rs b/compiler/rustc_const_eval/src/transform/promote_consts.rs
index 3f3b66b0645..648a86d32fc 100644
--- a/compiler/rustc_const_eval/src/transform/promote_consts.rs
+++ b/compiler/rustc_const_eval/src/transform/promote_consts.rs
@@ -106,8 +106,9 @@ impl<'tcx> Visitor<'tcx> for Collector<'_, 'tcx> {
         debug!("visit_local: index={:?} context={:?} location={:?}", index, context, location);
         // We're only interested in temporaries and the return place
         match self.ccx.body.local_kind(index) {
-            LocalKind::Temp | LocalKind::ReturnPointer => {}
-            LocalKind::Arg | LocalKind::Var => return,
+            LocalKind::Arg => return,
+            LocalKind::Temp if self.ccx.body.local_decls[index].is_user_variable() => return,
+            LocalKind::ReturnPointer | LocalKind::Temp => {}
         }
 
         // Ignore drops, if the temp gets promoted,