https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78248
--- Comment #8 from Martin Liška <marxin at gcc dot gnu.org> --- (In reply to Uroš Bizjak from comment #7) > (In reply to Martin Liška from comment #6) > > Still can't reproduce. Can you please paste output of > > gcc-trunk -Os small.c --verbose > > It fails for me: > > Program received signal SIGSEGV, Segmentation fault. > main () at pr78248.c:16 > 16 d = b[e]; > (gdb) > > valgrind says: > > ==18918== Invalid read of size 4 > ==18918== at 0x40046C: main (pr78248.c:16) > ==18918== Address 0x601000 is not stack'd, malloc'd or (recently) free'd > ==18918== > ==18918== > ==18918== Process terminating with default action of signal 11 (SIGSEGV) > ==18918== Access not within mapped region at address 0x601000 > ==18918== at 0x40046C: main (pr78248.c:16) > ==18918== If you believe this happened as a result of a stack > ==18918== overflow in your program's main thread (unlikely but > ==18918== possible), you can try to increase the size of the > ==18918== main thread stack using the --main-stacksize= flag. > ==18918== The main thread stack size used in this run was 10485760. I've already tried running the test-case in valgrind. But I can't see the problem :) May you please paste -S file and --verbose output?
