At debuginfo=0, don't inline debuginfo when inlining

1 files changed, 4 insertions, 2 deletions

diff --git a/compiler/rustc_mir_transform/src/inline.rs b/compiler/rustc_mir_transform/src/inline.rs
index 60513a674af..1182a738402 100644
--- a/compiler/rustc_mir_transform/src/inline.rs
+++ b/compiler/rustc_mir_transform/src/inline.rs
@@ -11,7 +11,7 @@ use rustc_middle::mir::visit::*;
 use rustc_middle::mir::*;
 use rustc_middle::ty::TypeVisitableExt;
 use rustc_middle::ty::{self, Instance, InstanceDef, ParamEnv, Ty, TyCtxt};
-use rustc_session::config::OptLevel;
+use rustc_session::config::{DebugInfo, OptLevel};
 use rustc_span::source_map::Spanned;
 use rustc_span::sym;
 use rustc_target::abi::FieldIdx;
@@ -699,7 +699,9 @@ impl<'tcx> Inliner<'tcx> {
         // Insert all of the (mapped) parts of the callee body into the caller.
         caller_body.local_decls.extend(callee_body.drain_vars_and_temps());
         caller_body.source_scopes.extend(&mut callee_body.source_scopes.drain(..));
-        caller_body.var_debug_info.append(&mut callee_body.var_debug_info);
+        if self.tcx.sess.opts.debuginfo != DebugInfo::None {
+            caller_body.var_debug_info.append(&mut callee_body.var_debug_info);
+        }
         caller_body.basic_blocks_mut().extend(callee_body.basic_blocks_mut().drain(..));
 
         caller_body[callsite.block].terminator = Some(Terminator {