diff options
Diffstat (limited to 'compiler/rustc_mir_build/src/build/expr/as_operand.rs')
| -rw-r--r-- | compiler/rustc_mir_build/src/build/expr/as_operand.rs | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/compiler/rustc_mir_build/src/build/expr/as_operand.rs b/compiler/rustc_mir_build/src/build/expr/as_operand.rs index ff3198847..6941da331 100644 --- a/compiler/rustc_mir_build/src/build/expr/as_operand.rs +++ b/compiler/rustc_mir_build/src/build/expr/as_operand.rs @@ -20,7 +20,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { expr: &Expr<'tcx>, ) -> BlockAnd<Operand<'tcx>> { let local_scope = self.local_scope(); - self.as_operand(block, Some(local_scope), expr, None, NeedsTemporary::Maybe) + self.as_operand(block, Some(local_scope), expr, LocalInfo::Boring, NeedsTemporary::Maybe) } /// Returns an operand suitable for use until the end of the current scope expression and @@ -102,7 +102,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { mut block: BasicBlock, scope: Option<region::Scope>, expr: &Expr<'tcx>, - local_info: Option<Box<LocalInfo<'tcx>>>, + local_info: LocalInfo<'tcx>, needs_temporary: NeedsTemporary, ) -> BlockAnd<Operand<'tcx>> { let this = self; @@ -124,8 +124,12 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { } Category::Constant | Category::Place | Category::Rvalue(..) => { let operand = unpack!(block = this.as_temp(block, scope, expr, Mutability::Mut)); - if this.local_decls[operand].local_info.is_none() { - this.local_decls[operand].local_info = local_info; + // Overwrite temp local info if we have something more interesting to record. + if !matches!(local_info, LocalInfo::Boring) { + let decl_info = this.local_decls[operand].local_info.as_mut().assert_crate_local(); + if let LocalInfo::Boring | LocalInfo::BlockTailTemp(_) = **decl_info { + **decl_info = local_info; + } } block.and(Operand::Move(Place::from(operand))) } @@ -178,6 +182,6 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { } } - this.as_operand(block, scope, expr, None, NeedsTemporary::Maybe) + this.as_operand(block, scope, expr, LocalInfo::Boring, NeedsTemporary::Maybe) } } |