compnerd added inline comments. ================ Comment at: compiler-rt/lib/builtins/comp_assert.h:20 @@ +19,3 @@ +#define COMPILE_TIME_ASSERT(pred) { \ + char dummy[(pred) ? 0 : -1] __attribute__((unused)); \ +} ---------------- Why not just put this in int_lib.h? http://reviews.llvm.org/D12001