kit

kit
git clone https://git.ryansepassi.com/git/kit.git
Log | Files | Refs | README

ibit_not.c (255B)

      1 /* 32-bit bitwise NOT (~). On aarch64 `~x` lowers to `mvn w, w` (ORN with the
      2  * zero register). volatile defeats folding. Branch-free, no relocs.
      3  *   x = 0xFFFFFFD5 (-43);  ~x = 0x2A = 42. */
      4 int test_main(void) {
      5   volatile int x = -43;
      6   return ~x;
      7 }