Hi. The PR is about a huge number of basic blocks that belong to a line. Apparently, it's a generated code coming from Fortran module end statement. I'm doing fix in 2 steps:
1) I dropped NEGATIVE_LOOP as that can't happen. I've tested that on GCC and works fine. 2) Cycle detection algorithm should not use zero edges. Patch can bootstrap on x86_64-linux-gnu and survives regression tests. I'll install it if there will be no objections. Martin marxin (2): Test for not existence of a negative loop (PR gcov-profile/90380). Do not follow zero edges in cycle detection (PR gcov-profile/90380). gcc/gcov.c | 61 +++++++++++++++++++++--------------------------------- 1 file changed, 24 insertions(+), 37 deletions(-) -- 2.21.0
