https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100877
Bug ID: 100877
Summary: g++ freezes system by consuming infinite amount of
memory
Product: gcc
Version: 11.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: wang_feng at live dot com
Target Milestone: ---
Created attachment 50910
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50910&action=edit
The preprocessed source code to reproduce the problem.
g++ tends to allocate infinite amount of memory while compiling this program.
1. g++ version:
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-linux-gnu/11.1.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /build/gcc/src/gcc/configure --prefix=/usr --libdir=/usr/lib
--libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info
--with-bugurl=https://bugs.archlinux.org/
--enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++,d --with-isl
--with-linker-hash-style=gnu --with-system-zlib --enable-__cxa_atexit
--enable-cet=auto --enable-checking=release --enable-clocale=gnu
--enable-default-pie --enable-default-ssp --enable-gnu-indirect-function
--enable-gnu-unique-object --enable-install-libiberty --enable-linker-build-id
--enable-lto --enable-multilib --enable-plugin --enable-shared
--enable-threads=posix --disable-libssp --disable-libstdcxx-pch
--disable-libunwind-exceptions --disable-werror
gdc_include_dir=/usr/include/dlang/gdc
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 11.1.0 (GCC)
2. compile command (dcgan.cc is attached with this report):
g++ -c -std=c++20 -Wall -Wextra -fmax-errors=1 -ftemplate-backtrace-limit=0
-fdata-sections -ffunction-sections -funsafe-math-optimizations
-fconcepts-diagnostics-depth=4 -ftemplate-depth=100860 -Ofast -flto -pipe
-march=native ./dcgan.cc
3. host system:
Arch Linux 5.10.39-1-lts #1 SMP Sat, 22 May 2021 10:57:31 +0000 x86_64
GNU/Linux
