1 files changed, 27 insertions, 0 deletions
diff --git a/tests/subr_d.c b/tests/subr_d.c
new file mode 100644
index 0000000..65b5ecd
--- /dev/null
+++ b/tests/subr_d.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_2(j, jit_operand_fpr (JIT_OPERAND_ABI_DOUBLE, JIT_F0),
+	                jit_operand_fpr (JIT_OPERAND_ABI_DOUBLE, JIT_F1));
+
+	jit_subr_d(j, JIT_F0, JIT_F0, JIT_F1);
+	jit_leave_jit_abi(j, 0, 0, align);
+	jit_retr_d(j, JIT_F0);
+
+	size_t size = 0;
+	void* ret = jit_end(j, &size);
+
+	double (*f)(double, double) = ret;
+	ASSERT(f(42., 69.) == -27.);
+	ASSERT(f(42., 69.5) == -27.5);
+}
+
+int
+main (int argc, char *argv[])
+{
+	return main_helper(argc, argv, run_test);
+}