https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83069
--- Comment #4 from Siddhesh Poyarekar <siddhesh at gotplt dot org> --- Reduced C test case: #define MAX 98 void foo (unsigned long *res, unsigned long in) { for (unsigned long a = 0; a < MAX; a++) for (unsigned long b = 0; b < MAX; b++) for (unsigned long c = 0; c < MAX; c++) for (unsigned long d = 0; d < MAX; d++) for (unsigned long e = 0; e < MAX; e++) for (unsigned long f = 0; f < MAX; f++) for (unsigned long g = 0; g < MAX; g++) *res += a * in; } foo.c: In function 'foo': foo.c:13:1: internal compiler error: in from_gcov_type, at profile-count.h:676 } ^ 0xaaf57f profile_count::from_gcov_type(long) /home/siddhesh/src/gcc/gcc/profile-count.h:676 0xaaf57f estimate_bb_frequencies(bool) /home/siddhesh/src/gcc/gcc/predict.c:3623 0xab40af tree_estimate_probability(bool) /home/siddhesh/src/gcc/gcc/predict.c:2849 0xab45c3 execute /home/siddhesh/src/gcc/gcc/predict.c:3760 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions.