https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65496
Bug ID: 65496 Summary: ICE: in maybe_record_trace_start, at dwarf2cfi.c:2318 with -O3 -fsched2-use-superblocks -mavx512dq --param=max-pending-list-length=0 Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz Created attachment 35075 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35075&action=edit reduced testcase Compiler output: $ gcc -O3 -fsched2-use-superblocks -mavx512dq --param=max-pending-list-length=0 testcase.c testcase.c: In function 'foo': testcase.c:6:1: internal compiler error: in maybe_record_trace_start, at dwarf2cfi.c:2318 } ^ 0x8843d0 maybe_record_trace_start /mnt/svn/gcc-trunk/gcc/dwarf2cfi.c:2318 0x885348 scan_trace /mnt/svn/gcc-trunk/gcc/dwarf2cfi.c:2496 0x885c9a create_cfi_notes /mnt/svn/gcc-trunk/gcc/dwarf2cfi.c:2650 0x885c9a execute_dwarf2_frame /mnt/svn/gcc-trunk/gcc/dwarf2cfi.c:3006 0x885c9a execute /mnt/svn/gcc-trunk/gcc/dwarf2cfi.c:3486 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions. $ gcc -v Using built-in specs. COLLECT_GCC=/mnt/svn/gcc-trunk/binary-latest/bin/gcc COLLECT_LTO_WRAPPER=/mnt/svn/gcc-trunk/binary-221530-lto-fortran-checking-yes-rtl-df/libexec/gcc/x86_64-unknown-linux-gnu/5.0.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: /mnt/svn/gcc-trunk//configure --enable-checking=yes,rtl,df --enable-languages=c,c++,lto,fortran --prefix=/mnt/svn/gcc-trunk/binary-221530-lto-fortran-checking-yes-rtl-df/ --without-cloog --without-ppl Thread model: posix gcc version 5.0.0 20150320 (experimental) (GCC) Tested revisions: r221530 - ICE