https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117090
Bug ID: 117090
Summary: gcov-tool ICE when merging two profiles
Product: gcc
Version: 12.3.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: gcov-profile
Assignee: unassigned at gcc dot gnu.org
Reporter: shahzad.malik.muzaffar at cern dot ch
Target Milestone: ---
Hi,
I am trying to build my application using Profile guided optimization.
Application has multiple configurations so I have to run it multiple times to
generate the profiles. When I try to merge these profiles then gcov-tool
crashes with error. I have attached the two set of profiles here.
---------
> gcov-tool merge -o merge cms-pgo/profile2 cms-pgo/profile3
gcov-tool: internal compiler error: in write_topn_counters, at
../libgcc/libgcov-driver.c:426
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
See <https://gcc.gnu.org/bugs/> for instructions.
---------
I have built and run my application on AlmaLinux8/x86_64 using GCC 12.3.1 [a]
and application was built with lto
"-flto=auto -fipa-icf -flto-odr-type-merging -fno-fat-lto-objects -Wodr" and
PGO flags "-fprofile-prefix-path=/app/path -fprofile-update=prefer-atomic
-fprofile-correction -fprofile-generate=%q{CMSSW_PGO_DIRECTORY}"
Any idea why gcov-tool can not merge these profiles?
Thanks,
--Shahzad
[a]
> uname -a
Linux hostname.cern.ch 4.18.0-553.16.1.el8_10.x86_64 #1 SMP Thu Aug 8 07:11:46
EDT 2024 x86_64 x86_64 x86_64 GNU/Linux
> gcc -v
Target: x86_64-redhat-linux-gnu
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.3.1 20230527 (GCC)
