https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127631
Bug ID: 127631
Summary: rnflow hangs with higher optimiztaion
Product: gcc
Version: 17.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: tkoenig at gcc dot gnu.org
Target Milestone: ---
This is on x86_64.
-O1 gives:
0: 0: 0.000 -> Read sequence
0: 0: 0.125 -> extract extrema
0: 0: 0.127 -> Generate raw transitions counts
0: 0: 0.129 -> Compute Markov matrix
0: 0: 0.129 -> Calculate theoretical rainflow
0: 0: 6.828 -> Simulate random markov sequences
0: 0: 6.946 -> Completed simulation # 1
-O2 and -O3 hang after
0: 0: 0.000 -> Read sequence
0: 0: 0.125 -> extract extrema
0: 0: 0.126 -> Generate raw transitions counts
0: 0: 0.127 -> Compute Markov matrix
0: 0: 0.128 -> Calculate theoretical rainflow
0: 0: 6.587 -> Simulate random markov sequences
This is with GNU Fortran (GCC) 17.0.0 20260717 (experimental)
