https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95912
Bug ID: 95912 Summary: internal compiler error: in execute, at adjust-alignment.c:74 with 'ICE on '-m32 -mpreferred-stack-boundary=2'' Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: slyfox at inbox dot ru Target Milestone: --- Originally ICE happened when I attempted to compile valgrind-3.16.1. Minimal reproducer is very simple: $ cat bug.c a() { long long b; } $ LANG=C gcc-11.0.0 a.c -c -m32 -mpreferred-stack-boundary=2 bug.c:1:1: warning: return type defaults to 'int' [-Wimplicit-int] 1 | a() { long long b; } | ^ during GIMPLE pass: adjust_alignment bug.c: In function 'a': bug.c:1:1: internal compiler error: in execute, at adjust-alignment.c:74 0x7f9fcda79d49 __libc_start_main ../csu/libc-start.c:308 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. GCC was configured as: $ /home/slyfox/dev/git/gcc-native-quick/gcc/xgcc -B/home/slyfox/dev/git/gcc-native-quick/gcc -v Reading specs from /home/slyfox/dev/git/gcc-native-quick/gcc/specs COLLECT_GCC=/home/slyfox/dev/git/gcc-native-quick/gcc/xgcc COLLECT_LTO_WRAPPER=/home/slyfox/dev/git/gcc-native-quick/gcc/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: ../gcc/configure --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu --enable-languages=c,c++ --disable-bootstrap --with-multilib-list=m64 --prefix=/home/slyfox/dev/git/gcc-native-quick/../gcc-native-quick-installed --disable-nls --without-isl --disable-libsanitizer --disable-libvtv --disable-libgomp --disable-libstdcxx-pch --disable-libunwind-exceptions CFLAGS='-O1 ' CXXFLAGS='-O1 ' --with-sysroot=/usr/x86_64-HEAD-linux-gnu Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 11.0.0 20200626 (experimental) (GCC)