add lightening jit

1 files changed, 30 insertions, 0 deletions

diff --git a/deps/lightening/tests/truncr_d_i.c b/deps/lightening/tests/truncr_d_i.c
new file mode 100644
index 0000000..b21280f
--- /dev/null
+++ b/deps/lightening/tests/truncr_d_i.c
@@ -0,0 +1,30 @@
+#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_fpr (JIT_OPERAND_ABI_DOUBLE, JIT_F0));
+
+  jit_truncr_d_i(j, JIT_R0, JIT_F0);
+  jit_leave_jit_abi(j, 0, 0, align);
+  jit_retr(j, JIT_R0);
+
+  int (*f)(double) = jit_end(j, NULL);
+
+  ASSERT(f(0.0) == 0);
+  ASSERT(f(-0.0) == 0);
+  ASSERT(f(0.5) == 0);
+  ASSERT(f(-0.5) == 0);
+  ASSERT(f(1.5) == 1);
+  ASSERT(f(-1.5) == -1);
+  ASSERT(f(2.5) == 2);
+  ASSERT(f(-2.5) == -2);
+}
+
+int
+main (int argc, char *argv[])
+{
+  return main_helper(argc, argv, run_test);
+}