I get a lot of warnings with -Og and gcc from trunk. I do not get these warnings with any other warning level. This is a reduced example: ---------- int foo(void); int failing(void) { int r; unsigned int i; struct h * p[3]; for (i = 0; i < sizeof(p) / sizeof(p[0]); ++i) { r = foo(); if (r != 0) break; } return r >= 0; } ----------- Compile with: gcc -Og -Wall -c fil.c gcc --version gcc (GCC) 4.8.0 20130304 (experimental) Should I create a bug on this, or will someone else handle that? -- Lgb