Seen on this build: https://copr.fedorainfracloud.org/coprs/dmalcolm/gcc-15-smoketest-3.failed/build/8476804/ using gcc-15.0.0-0.2.fc42 from this scratch build by Jakub: https://koji.fedoraproject.org/koji/taskinfo?taskID=126495782 /usr/bin/g++ -DHAVE_ICU -DHAVE_KDBUSADDONS -DHAVE_KIO -DHAVE_KUNIFIEDPUSH -DHAVE_RUNNER -DHAVE_WINDOWSYSTEM -DHAVE_X11=1 -DKCOREADDONS_LIB -DQT_CORE_LIB -DQT_DBUS_LIB -DQT_GUI_LIB -DQT_MULTIMEDIA_LIB -DQT_NETWORK_LIB -DQT_NO_CAST_FROM_ASCII -DQT_NO_CAST_FROM_BYTEARRAY -DQT_NO_CAST_TO_ASCII -DQT_NO_DEBUG -DQT_NO_FOREACH -DQT_NO_KEYWORDS -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_NO_URL_CAST_FROM_STRING -DQT_OPENGL_LIB -DQT_QMLINTEGRATION_LIB -DQT_QMLMETA_LIB -DQT_QMLMODELS_LIB -DQT_QMLWORKERSCRIPT_LIB -DQT_QML_LIB -DQT_QUICKCONTROLS2_LIB -DQT_QUICK_LIB -DQT_SQL_LIB -DQT_STRICT_ITERATORS -DQT_USE_QSTRINGBUILDER -DQT_WIDGETS_LIB -DQuotient_E2EE_ENABLED -DQuotient_PRE_STAGE=\"\" -DQuotient_VERSION_MAJOR=0 -DQuotient_VERSION_MINOR=9 -DQuotient_VERSION_PATCH=2 -DQuotient_VERSION_STRING=\"0.9.2\" -D_GNU_SOURCE -D_LARGEFILE64_SOURCE -I/builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/redhat-linux-build/src -I/builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/src -I/builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/redhat-linux-build/src/neochat_autogen/include -I/builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/redhat-linux-build -I/builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/src/models -I/builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/src/enums -I/builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/redhat-linux-build/src/settings -I/builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/src/settings -I/builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/redhat-linux-build/src/timeline -I/builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/src/timeline -I/builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/redhat-linux-build/src/devtools -I/builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/src/devtools -I/builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/redhat-linux-build/src/login -I/builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/src/login -I/builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/redhat-linux-build/src/chatbar -I/builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/src/chatbar -isystem /usr/include/qt6/QtQml/6.8.1 -isystem /usr/include/qt6/QtQml/6.8.1/QtQml -isystem /usr/include/qt6/QtCore/6.8.1 -isystem /usr/include/qt6/QtCore/6.8.1/QtCore -isystem /usr/include/qt6/QtCore -isystem /usr/include/qt6 -isystem /usr/lib64/qt6/mkspecs/linux-g++ -isystem /usr/include/qt6/QtQml -isystem /usr/include/qt6/QtQmlIntegration -isystem /usr/include/qt6/QtNetwork -isystem /usr/include/KF6/KStatusNotifierItem -isystem /usr/include/qt6/QtGui -isystem /usr/include/qt6/QtWidgets -isystem /usr/include/qt6/QtDBus -isystem /usr/include/KF6/KWindowSystem -isystem /usr/include/qt6/QtQuick -isystem /usr/include/qt6/QtQmlMeta -isystem /usr/include/qt6/QtQmlModels -isystem /usr/include/qt6/QtQmlWorkerScript -isystem /usr/include/qt6/QtOpenGL -isystem /usr/include/qt6/QtMultimedia -isystem /usr/include/qt6/QtQuickControls2 -isystem /usr/include/KF6/KI18n -isystem /usr/include/KF6 -isystem /usr/include/KF6/Kirigami/Platform -isystem /usr/include/KF6/KNotifications -isystem /usr/include/KF6/KConfig -isystem /usr/include/KF6/KConfigCore -isystem /usr/include/KF6/KConfigGui -isystem /usr/include/KF6/KCoreAddons -isystem /usr/include/KF6/SonnetCore -isystem /usr/include/KF6/Sonnet -isystem /usr/include/KF6/KColorScheme -isystem /usr/include/KF6/KItemModels -isystem /usr/include/QuotientQt6 -isystem /usr/include/qt6/QtSql -isystem /usr/include/qcoro6 -isystem /usr/include/qcoro6/qcoro -isystem /usr/include/qcoro6/QCoro -isystem /usr/include/KF6/KCrash -isystem /usr/include/KF6/KIOWidgets -isystem /usr/include/KF6/KIOGui -isystem /usr/include/KF6/KIOCore -isystem /usr/include/KF6/KIO -isystem /usr/include/KF6/KService -isystem /usr/include/KF6/KJobWidgets -isystem /usr/include/KF6/Solid -isystem /usr/include/KF6/KCompletion -isystem /usr/include/KF6/KWidgetsAddons -isystem /usr/include/KF6/KSyntaxHighlighting -isystem /usr/include/KF6/KDBusAddons -isystem /usr/include/KUnifiedPush -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -fno-operator-names -fno-exceptions -Wall -Wextra -Wcast-align -Wchar-subscripts -Wformat-security -Wno-long-long -Wpointer-arith -Wundef -Wnon-virtual-dtor -Woverloaded-virtual -Werror=return-type -Werror=init-self -Werror=undef -Wvla -Wdate-time -Wsuggest-override -Wlogical-op -pedantic -Wzero-as-null-pointer-constant -Wmissing-include-dirs -fdiagnostics-color=always -fcoroutines -DNDEBUG -std=gnu++23 -fvisibility=hidden -fvisibility-inlines-hidden -MD -MT src/CMakeFiles/neochat.dir/neochatroom.cpp.o -MF src/CMakeFiles/neochat.dir/neochatroom.cpp.o.d -o src/CMakeFiles/neochat.dir/neochatroom.cpp.o -c /builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/src/neochatroom.cpp /builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/src/neochatroom.cpp: In function ‘void NeoChatRoom::doDeleteMessagesByUser(_ZN11NeoChatRoom22doDeleteMessagesByUserERK7QStringS0_.Frame*)’: /builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/src/neochatroom.cpp:905:1: internal compiler error: in gimplify_var_or_parm_decl, at gimplify.cc:3315 905 | } | ^ Please submit a full bug report, with preprocessed source (by using -freport-bug). See <http://bugzilla.redhat.com/bugzilla> for instructions. Preprocessed source stored into /tmp/ccO2ybjq.out file, please attach this to your bugreport. Seems to have happened on every arch I tried it on. Reproducible: Didn't try
Reproduced with trunk: $ ./cc1plus -quiet neochatroom.ii -std=gnu++23 /builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/src/neochatroom.cpp: In function ‘void NeoChatRoom::doDeleteMessagesByUser(_ZN11NeoChatRoom22doDeleteMessagesByUserERK7QStringS0_.Frame*)’: /builddir/build/BUILD/neochat-24.12.0-build/neochat-24.12.0/src/neochatroom.cpp:905:1: internal compiler error: in gimplify_var_or_parm_decl, at gimplify.cc:3341 0x3078605 internal_error(char const*, ...) /home/mpolacek/src/gcc/gcc/diagnostic-global-context.cc:517 0x3048221 fancy_abort(char const*, int, char const*) /home/mpolacek/src/gcc/gcc/diagnostic.cc:1722 0xd1cb19 gimplify_var_or_parm_decl /home/mpolacek/src/gcc/gcc/gimplify.cc:3341 0xd1ceb3 gimplify_compound_lval /home/mpolacek/src/gcc/gcc/gimplify.cc:3464 0xd60867 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*), int) /home/mpolacek/src/gcc/gcc/gimplify.cc:18814 0xd2b48d gimplify_addr_expr /home/mpolacek/src/gcc/gcc/gimplify.cc:7363 0xd60dac gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*), int) /home/mpolacek/src/gcc/gcc/gimplify.cc:18912 0xd64acc gimplify_expr /home/mpolacek/src/gcc/gcc/gimplify.cc:19956 0xd1de6a gimplify_arg(tree_node**, gimple**, unsigned long, bool) /home/mpolacek/src/gcc/gcc/gimplify.cc:3827 0x4e1bf3 cp_gimplify_arg /home/mpolacek/src/gcc/gcc/cp/cp-gimplify.cc:587 0x4e3263 cp_gimplify_expr(tree_node**, gimple**, gimple**) /home/mpolacek/src/gcc/gcc/cp/cp-gimplify.cc:859 0xd60658 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*), int) /home/mpolacek/src/gcc/gcc/gimplify.cc:18771 0xd64acc gimplify_expr /home/mpolacek/src/gcc/gcc/gimplify.cc:19956 0xd1de6a gimplify_arg(tree_node**, gimple**, unsigned long, bool) /home/mpolacek/src/gcc/gcc/gimplify.cc:3827 0xd20ff5 gimplify_call_expr /home/mpolacek/src/gcc/gcc/gimplify.cc:4409 0xd60911 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*), int) /home/mpolacek/src/gcc/gcc/gimplify.cc:18834 0xd29756 gimplify_modify_expr /home/mpolacek/src/gcc/gcc/gimplify.cc:6916 0xd60a19 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*), int) /home/mpolacek/src/gcc/gcc/gimplify.cc:18865 0xd2dfad gimplify_stmt(tree_node**, gimple**) /home/mpolacek/src/gcc/gcc/gimplify.cc:8039 0xd2d48b gimplify_cleanup_point_expr /home/mpolacek/src/gcc/gcc/gimplify.cc:7777
Started with r15-3840: commit 650e91566561870f3d1c8d5b92e6613296ee1a8d Author: Jakub Jelinek <jakub> Date: Tue Sep 24 20:19:50 2024 +0200 c++: Implement C++23 P2718R0 - Wording for P2644R1 Fix for Range-based for Loop [PR107637] I'll try to reduce, but it'll take a long time -- the testcase is 7.1M.
Is that coroutines related? There is still PR117231 still unclosed, and I think various gimplify_var_or_parm_decl coroutine ICE PRs too, e.g. PR116914.
https://gcc.gnu.org/pipermail/gcc-patches/2024-November/670404.html Jason replied but I haven't seen further changes from Iain.
Yeah, I see co_await, co_return etc. And Iain's patch fixes the crash. So I'm not going to reduce this anymore, since we already have a minimized test case.
This bug appears to have been reported against 'rawhide' during the Fedora Linux 42 development cycle. Changing version to 42.