https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114715
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
diff --git a/gcc/gimplify.cc b/gcc/gimplify.cc
index 3df58b962f3..26e96ada4c7 100644
--- a/gcc/gimplify.cc
+++ b/gcc/gimplify.cc
@@ -3017,6 +3017,7 @@ gimplify_switch_expr (tree *expr_p, gimple_seq *pre_p)
switch_stmt = gimple_build_switch (SWITCH_COND (switch_expr),
default_case, labels);
+ gimple_set_location (switch_stmt, EXPR_LOCATION (switch_expr));
/* For the benefit of -Wimplicit-fallthrough, if switch_body_seq
ends with a GIMPLE_LABEL holding SWITCH_BREAK_LABEL_P LABEL_DECL,
wrap the GIMPLE_SWITCH up to that GIMPLE_LABEL into a GIMPLE_BIND,
fixes the testcase
