add lightening jit

1 files changed, 42 insertions, 0 deletions

diff --git a/deps/lightening/tests/qdivr_u.c b/deps/lightening/tests/qdivr_u.c
new file mode 100644
index 0000000..e260193
--- /dev/null
+++ b/deps/lightening/tests/qdivr_u.c
@@ -0,0 +1,42 @@
+#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, 3, 0, 0);
+
+  jit_operand_t args[] =
+    { jit_operand_gpr (JIT_OPERAND_ABI_POINTER, JIT_R0),
+      jit_operand_gpr (JIT_OPERAND_ABI_POINTER, JIT_R1),
+      jit_operand_gpr (JIT_OPERAND_ABI_WORD, JIT_R2),
+      jit_operand_gpr (JIT_OPERAND_ABI_WORD, JIT_V0) };
+  jit_load_args(j, 4, args);
+
+  jit_qdivr_u(j, JIT_V1, JIT_V2, JIT_R2, JIT_V0);
+  jit_str(j, JIT_R0, JIT_V1);
+  jit_str(j, JIT_R1, JIT_V2);
+
+  jit_leave_jit_abi(j, 3, 0, align);
+
+  jit_ret(j);
+
+  size_t size = 0;
+  void* ret = jit_end(j, &size);
+
+  void (*f)(jit_word_t*, jit_word_t*, jit_word_t, jit_word_t) = ret;
+#define QDIV(a, b, c, d) \
+  do { \
+    jit_word_t C = 0, D = 0; f(&C, &D, a, b); ASSERT(C == c); ASSERT(D == d); \
+  } while (0)
+  
+  QDIV(-1, -2, 1, 1);
+  QDIV(-2, -5, 1, 3);
+}
+
+int
+main (int argc, char *argv[])
+{
+  return main_helper(argc, argv, run_test);
+}