The comment here is not wrong, just it would be better if mentioning
the C++ front-end instead of just the nested function lowering.
gcc/ChangeLog:
* cfgexpand.cc (add_scope_conflicts_1): Expand comment
on when non-var clobbers show up.
Signed-off-by: Andrew Pinski <quic_apin...@quicinc.com>
---
gcc/cfgexpand.cc | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/gcc/cfgexpand.cc b/gcc/cfgexpand.cc
index f32cf1b20c9..6c1096363af 100644
--- a/gcc/cfgexpand.cc
+++ b/gcc/cfgexpand.cc
@@ -639,8 +639,9 @@ add_scope_conflicts_1 (basic_block bb, bitmap work, bool
for_conflict)
{
tree lhs = gimple_assign_lhs (stmt);
unsigned *v;
- /* Nested function lowering might introduce LHSs
- that are COMPONENT_REFs. */
+ /* Handle only plain var clobbers.
+ Nested functions lowering and C++ front-end inserts clobbers
+ which are not just plain variables. */
if (!VAR_P (lhs))
continue;
if (DECL_RTL_IF_SET (lhs) == pc_rtx
--
2.34.1
