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-rw-r--r--libguile/lightening/tests/bswapr_us.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/libguile/lightening/tests/bswapr_us.c b/libguile/lightening/tests/bswapr_us.c
new file mode 100644
index 000000000..10028dfb7
--- /dev/null
+++ b/libguile/lightening/tests/bswapr_us.c
@@ -0,0 +1,28 @@
+#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);
+
+ const jit_arg_abi_t abi[] = { JIT_ARG_ABI_INTMAX };
+ jit_arg_t args[1];
+ const jit_anyreg_t regs[] = { { .gpr=JIT_R1 } };
+
+ jit_receive(j, 1, abi, args);
+ jit_load_args(j, 1, abi, args, regs);
+
+ jit_bswapr_us(j, JIT_R0, JIT_R1);
+ jit_retr(j, JIT_R0);
+
+ uintmax_t (*f)(uintmax_t) = jit_end(j, NULL);
+
+ ASSERT(f(0) == 0);
+ ASSERT(f(0x12345678) == 0x7856);
+}
+
+int
+main (int argc, char *argv[])
+{
+ return main_helper(argc, argv, run_test);
+}