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From: "slyfox at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/97295] ICE on firefox built with lto+pgo: dist/include/mozilla/Casting.h:64:1: internal compiler error: in to_frequency, at profile-count.c:273
Date: Fri, 09 Oct 2020 08:05:03 +0000 [thread overview]
Message-ID: <bug-97295-4-39JJKerFFB@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-97295-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97295
--- Comment #6 from Sergei Trofimovich <slyfox at gcc dot gnu.org> ---
Created attachment 49336
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49336&action=edit
b.tar.gz
Managed to craft self-contained example which is able to crash both gcc-10 and
gcc-11. Attached as b.tar.gz.
The session looks like:
$ LANG=C bash -x ./mk2.bash
+ rm TestFloatingPoint.o Unified_cpp_mfbt0.o main.o Unified_cpp_mfbt0.gcda
main.gcda main
+ cxx=g++-11.0.0
+ cxxflags=(-flto -fPIC -O1 -Wno-error=coverage-mismatch -Wno-coverage-mismatch
-Wno-missing-profile "$@")
+ g++-11.0.0 -flto -fPIC -O1 -Wno-error=coverage-mismatch
-Wno-coverage-mismatch -Wno-missing-profile -o Unified_cpp_mfbt0.o -c -O1
-fprofile-generate -fprofile-correction Unified_cpp_mfbt0.cpp
+ g++-11.0.0 -flto -fPIC -O1 -Wno-error=coverage-mismatch
-Wno-coverage-mismatch -Wno-missing-profile -o main.o -c -O1 -fprofile-generate
-fprofile-correction main.cc
+ g++-11.0.0 -flto -fPIC -O1 -Wno-error=coverage-mismatch
-Wno-coverage-mismatch -Wno-missing-profile -o main -O1 -fprofile-generate
main.o Unified_cpp_mfbt0.o
+ ./main
+ g++-11.0.0 -flto -fPIC -O1 -Wno-error=coverage-mismatch
-Wno-coverage-mismatch -Wno-missing-profile -o Unified_cpp_mfbt0.o -c -O1
-fprofile-use -fprofile-correction Unified_cpp_mfbt0.cpp
+ g++-11.0.0 -flto -fPIC -O1 -Wno-error=coverage-mismatch
-Wno-coverage-mismatch -Wno-missing-profile -o TestFloatingPoint.o -c -O0
TestFloatingPoint.cpp
+ g++-11.0.0 -flto -fPIC -O1 -Wno-error=coverage-mismatch
-Wno-coverage-mismatch -Wno-missing-profile -o TestFloatingPoint -O1 -shared
TestFloatingPoint.o Unified_cpp_mfbt0.o
during RTL pass: ira
TestFloatingPoint.cpp: In function 'BitwiseCast':
TestFloatingPoint.cpp:11:1: internal compiler error: in to_frequency, at
profile-count.c:273
11 | }
| ^
0x5c6aaf profile_count::to_frequency(function*) const
/usr/src/debug/sys-devel/gcc-11.0.0_pre9999/gcc-11.0.0_pre9999/gcc/profile-count.c:273
0x9f2511 regstat_bb_compute_ri
/usr/src/debug/sys-devel/gcc-11.0.0_pre9999/gcc-11.0.0_pre9999/gcc/regstat.c:200
0x9f2511 regstat_compute_ri()
/usr/src/debug/sys-devel/gcc-11.0.0_pre9999/gcc-11.0.0_pre9999/gcc/regstat.c:253
0x8b5680 ira
/usr/src/debug/sys-devel/gcc-11.0.0_pre9999/gcc-11.0.0_pre9999/gcc/ira.c:5300
0x8b5680 execute
/usr/src/debug/sys-devel/gcc-11.0.0_pre9999/gcc-11.0.0_pre9999/gcc/ira.c:5672
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://bugs.gentoo.org/> for instructions.
lto-wrapper: fatal error: /usr/bin/g++-11.0.0 returned 1 exit status
compilation terminated.
/usr/lib/gcc/x86_64-pc-linux-gnu/11.0.0/../../../../x86_64-pc-linux-gnu/bin/ld:
error: lto-wrapper failed
collect2: error: ld returned 1 exit status
next prev parent reply other threads:[~2020-10-09 8:05 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-05 18:37 [Bug rtl-optimization/97295] New: " slyfox at gcc dot gnu.org
2020-10-05 18:40 ` [Bug rtl-optimization/97295] " slyfox at gcc dot gnu.org
2020-10-05 18:52 ` slyfox at gcc dot gnu.org
2020-10-05 22:34 ` slyfox at gcc dot gnu.org
2020-10-06 11:15 ` marxin at gcc dot gnu.org
2020-10-07 10:23 ` marxin at gcc dot gnu.org
2020-10-09 8:05 ` slyfox at gcc dot gnu.org [this message]
2020-10-09 8:09 ` [Bug ipa/97295] " slyfox at gcc dot gnu.org
2020-10-09 11:04 ` marxin at gcc dot gnu.org
2020-10-15 7:57 ` cvs-commit at gcc dot gnu.org
2020-10-15 7:59 ` marxin at gcc dot gnu.org
2020-10-15 8:43 ` cvs-commit at gcc dot gnu.org
2020-10-15 9:07 ` cvs-commit at gcc dot gnu.org
2020-10-15 9:08 ` marxin at gcc dot gnu.org
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