https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80919
Bug ID: 80919 Summary: [7 Regression] ICE: Segmentation fault with -Wall when printing address of size 0 array Product: gcc Version: 7.1.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: bastian.beisc...@rwth-aachen.de Target Milestone: --- Hey, the following code causes a GCC segmentation fault when compiled with -Wall: #include <stdio.h> void conftest(void) { int gid[0]; printf("%x\n", &gid); } Compiler output: $ gcc -Wall -c -o conftest.o conftest.c conftest.c: In function ‘conftest’: conftest.c:6:3: internal compiler error: Segmentation fault printf("%x\n", &gid); ^~~~~~ Please submit a full bug report, with preprocessed source if appropriate. See <https://bugs.archlinux.org/> for instructions. Cheers Bastian