diff options
Diffstat (limited to 'compiler/rustc_mir_transform/src')
| -rw-r--r-- | compiler/rustc_mir_transform/src/inline.rs | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/compiler/rustc_mir_transform/src/inline.rs b/compiler/rustc_mir_transform/src/inline.rs index 60513a674af..625d8f53939 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 +699,19 @@ 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 + .unstable_opts + .inline_mir_preserve_debug + .unwrap_or(self.tcx.sess.opts.debuginfo != DebugInfo::None) + { + // Note that we need to preserve these in the standard library so that + // people working on rust can build with or without debuginfo while + // still getting consistent results from the mir-opt tests. + 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 { |