diff options
Diffstat (limited to 'gcc/toplev.c')
| -rw-r--r-- | gcc/toplev.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/gcc/toplev.c b/gcc/toplev.c index 2ed4c31..7d01eb6 100644 --- a/gcc/toplev.c +++ b/gcc/toplev.c @@ -3144,10 +3144,6 @@ rest_of_compilation (tree decl) delete_unreachable_blocks (); - /* We have to issue these warnings now already, because CFG cleanups - further down may destroy the required information. */ - check_function_return_warnings (); - /* Turn NOTE_INSN_PREDICTIONs into branch predictions. */ if (flag_guess_branch_prob) { @@ -3159,6 +3155,14 @@ rest_of_compilation (tree decl) if (flag_optimize_sibling_calls) rest_of_handle_sibling_calls (insns); + /* We have to issue these warnings now already, because CFG cleanups + further down may destroy the required information. However, this + must be done after the sibcall optimization pass because the barrier + emitted for noreturn calls that are candidate for the optimization + is folded into the CALL_PLACEHOLDER until after this pass, so the + CFG is inaccurate. */ + check_function_return_warnings (); + timevar_pop (TV_JUMP); insn_locators_initialize (); |