https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77698
Pat Haugen <pthaugen at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |---
--- Comment #5 from Pat Haugen <pthaugen at gcc dot gnu.org> ---
It's still not fixed in current trunk. After unrolling maybe_hot_bb_p() returns
false (via maybe_hot_count_p()), which prevents aligning the label in
final.c:compute_alignments(). Here's the tail section of debug session and
partial backtrace to show.
maybe_hot_count_p (fun=0x7ffff59f0000, count=...) at
/home/pthaugen/src/gcc/trunk_work/gcc/gcc/predict.c:185
185 return (count.to_gcov_type () >= get_hot_bb_threshold ());
(gdb) p count.to_gcov_type ()
$3 = 250000
(gdb) p get_hot_bb_threshold ()
$4 = 1000000
(gdb) bt
#0 maybe_hot_count_p (fun=0x7ffff59f0000, count=...) at
/home/pthaugen/src/gcc/trunk_work/gcc/gcc/predict.c:185
#1 0x0000000010d8fdb0 in maybe_hot_bb_p (fun=0x7ffff59f0000,
bb=0x7ffff59801a0)
at /home/pthaugen/src/gcc/trunk_work/gcc/gcc/predict.c:195
#2 0x0000000010d9045c in optimize_bb_for_size_p (bb=0x7ffff59801a0)
at /home/pthaugen/src/gcc/trunk_work/gcc/gcc/predict.c:301
#3 0x00000000108c7234 in compute_alignments () at
/home/pthaugen/src/gcc/trunk_work/gcc/gcc/final.c:674
#4 0x00000000108c7d3c in (anonymous
namespace)::pass_compute_alignments::execute (this=0x12886200)
at /home/pthaugen/src/gcc/trunk_work/gcc/gcc/final.c:823
