https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105235
--- Comment #1 from Zdenek Sojka <zsojka at seznam dot cz> --- A slightly different testcase fails elsewhere: $ cat testcase.c int i, j; void foo (double d) { i = __builtin_ilogbl (d); j = __builtin_sinl (d); } $ x86_64-pc-linux-gnu-gcc -O -fno-tree-dominator-opts -fnon-call-exceptions -fsanitize=thread -fno-tree-fre testcase.c testcase.c: In function 'foo': testcase.c:4:1: error: BB 3 cannot throw but has an EH edge 4 | foo (double d) | ^~~ during GIMPLE pass: sincos testcase.c:4:1: internal compiler error: verify_flow_info failed 0xe7c00e verify_flow_info() /repo/gcc-trunk/gcc/cfghooks.cc:284 0x128704a execute_function_todo /repo/gcc-trunk/gcc/passes.cc:2097 0x128755e execute_todo /repo/gcc-trunk/gcc/passes.cc:2139 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions.