diff options
Diffstat (limited to 'gcc/tree-ssa-loop-niter.c')
| -rw-r--r-- | gcc/tree-ssa-loop-niter.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/gcc/tree-ssa-loop-niter.c b/gcc/tree-ssa-loop-niter.c index e70e0a7..7804036 100644 --- a/gcc/tree-ssa-loop-niter.c +++ b/gcc/tree-ssa-loop-niter.c @@ -3757,10 +3757,12 @@ estimate_numbers_of_iterations_loop (struct loop *loop) maybe_lower_iteration_bound (loop); /* If we have a measured profile, use it to estimate the number of - iterations. */ - if (loop->header->count != 0) + iterations. Explicitly check for profile status so we do not report + wrong prediction hitrates for guessed loop iterations heuristics. */ + if (loop->header->count != 0 + && profile_status_for_fn (cfun) >= PROFILE_READ) { - gcov_type nit = expected_loop_iterations_unbounded (loop) + 1; + gcov_type nit = expected_loop_iterations_unbounded (loop); bound = gcov_type_to_wide_int (nit); record_niter_bound (loop, bound, true, false); } |