add lightening jit

1 files changed, 27 insertions, 0 deletions

diff --git a/deps/lightening/tests/lshi.c b/deps/lightening/tests/lshi.c
new file mode 100644
index 0000000..e721af5
--- /dev/null
+++ b/deps/lightening/tests/lshi.c
@@ -0,0 +1,27 @@
+#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_lshi(j, JIT_R0, JIT_R0, 31);
+  jit_leave_jit_abi(j, 0, 0, align);
+  jit_retr(j, JIT_R0);
+
+  jit_word_t (*f)(jit_word_t) = jit_end(j, NULL);
+
+#if __WORDSIZE == 32
+  ASSERT(f(-0x7f) == 0x80000000);
+#else
+  ASSERT(f(-0x7f) == 0xffffffc080000000);
+#endif
+}
+
+int
+main (int argc, char *argv[])
+{
+  return main_helper(argc, argv, run_test);
+}