add lightening jit

1 files changed, 31 insertions, 0 deletions

diff --git a/deps/lightening/tests/xori.c b/deps/lightening/tests/xori.c
new file mode 100644
index 0000000..4bb2ad1
--- /dev/null
+++ b/deps/lightening/tests/xori.c
@@ -0,0 +1,31 @@
+#include "test.h"
+
+static void
+run_test(jit_state_t *j, uint8_t *arena_base, size_t arena_size)
+{
+  jit_begin(j, arena_base, arena_size);
+  size_t align = jit_enter_jit_abi(j, 0, 0, 0);
+  jit_load_args_1(j, jit_operand_gpr (JIT_OPERAND_ABI_WORD, JIT_R0));
+
+  jit_xori(j, JIT_R0, JIT_R0, 1);
+  jit_leave_jit_abi(j, 0, 0, align);
+  jit_retr(j, JIT_R0);
+
+  size_t size = 0;
+  void* ret = jit_end(j, &size);
+
+  jit_word_t (*f)(jit_word_t) = ret;
+
+  ASSERT(f(0x7fffffff) == 0x7ffffffe);
+  ASSERT(f(0x80000000) == 0x80000001);
+#if __WORDSIZE == 64
+  ASSERT(f(0x7fffffffffffffff) == 0x7ffffffffffffffe);
+  ASSERT(f(0x8000000000000000) == 0x8000000000000001);
+#endif
+}
+
+int
+main (int argc, char *argv[])
+{
+  return main_helper(argc, argv, run_test);
+}