https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115387
--- Comment #4 from Marc Poulhiès <dkm at gcc dot gnu.org> --- This is command line that triggers the same error in all the nightly builds for riscv32/64 compiler explorer. ``` $ riscv32-unknown-linux-gnu-gcc -g -O2 -march=rv32gc -mabi=ilp32d input.c -c -std=gnu11 -fgnu89-inline -g -O2 -Wall -Wwrite-strings -Wundef -fmerge-all-constants -frounding-math -fno-stack-protector -fno-common -Wstrict-prototypes -Wold-style-definition -fmath-errno -fPIE -ftls-model=initial-exec -nostdinc -o iovsprintf.o iovsprintf.c: In function '__vsprintf_internal': iovsprintf.c:34:1: error: definition in block 5 follows the use 34 | __vsprintf_internal (char *string, size_t maxlen, | ^~~~~~~~~~~~~~~~~~~ for SSA_NAME: _9 in statement: prephitmp_36 = (char *) _9; during GIMPLE pass: widening_mul iovsprintf.c:34:1: internal compiler error: verify_ssa failed 0x162fd0f verify_ssa(bool, bool) /mnt/barryallen/dkm/git/crosstool-ng/.build/riscv32-unknown-linux-gnu/src/gcc/gcc/tree-ssa.cc:1203 0x1292a65 execute_function_todo /mnt/barryallen/dkm/git/crosstool-ng/.build/riscv32-unknown-linux-gnu/src/gcc/gcc/passes.cc:2096 0x1292ece execute_todo /mnt/barryallen/dkm/git/crosstool-ng/.build/riscv32-unknown-linux-gnu/src/gcc/gcc/passes.cc:2143 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. ```