https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99920
--- Comment #8 from seurer at gcc dot gnu.org --- It is during stage1 and I was able to recreate using the system distro compiler, gcc version 4.3.4 [gcc-4_3-branch revision 152973] (SUSE Linux). I will bisect on the .o's now. FWIW here is a list of the ones that failed (not necessarily the entire list): /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:2155:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/../libdecnumber/decLibrary.c:41:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:1534:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:1385:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:271:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:147:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:1576:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:109:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:187:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:160:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:84:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/../libdecnumber/decContext.c:227:18: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:1590:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:122:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:1460:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:1395:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:212:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:232:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:2030:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/../libdecnumber/decPacked.c:229:3: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/dfp-bit.c:96:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:2089:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/../libdecnumber/decCommon.c:242:19: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/../libdecnumber/dpd/decimal64.c:429:3: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/../libdecnumber/decLibrary.c:41:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:232:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:271:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:1395:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:212:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:147:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:122:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:1534:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:109:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:1576:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:160:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:84:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:1590:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:187:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:2155:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:1385:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/dfp-bit.c:96:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/../libdecnumber/decBasic.c:3622:12: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:1460:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:2089:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/libgcc2.c:2030:1: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/../libdecnumber/decContext.c:227:18: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/../libdecnumber/decPacked.c:229:3: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/../libdecnumber/decCommon.c:242:19: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/../libdecnumber/dpd/decimal64.c:429:3: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/../libdecnumber/decBasic.c:3622:12: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/../libdecnumber/decBasic.c:3622:12: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/../libdecnumber/decNumber.c:3760:3: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/../libdecnumber/decBasic.c:718:13: internal compiler error: Segmentation fault /home/seurer/gcc/git/gcc-10-test/libgcc/../libdecnumber/decNumber.c:3760:3: internal compiler error: Segmentation fault