start adding tests

1 files changed, 63 insertions, 0 deletions

diff --git a/tests/rshr.c b/tests/rshr.c
new file mode 100644
index 0000000..d14f64f
--- /dev/null
+++ b/tests/rshr.c
@@ -0,0 +1,63 @@
+#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_gpr (JIT_OPERAND_ABI_WORD, JIT_R0),
+	                jit_operand_gpr (JIT_OPERAND_ABI_WORD, JIT_R1));
+
+	jit_rshr(j, JIT_R0, JIT_R0, JIT_R1);
+	jit_leave_jit_abi(j, 0, 0, align);
+	jit_retr(j, JIT_R0);
+
+	size_t size = 0;
+	void* ret = jit_end(j, &size);
+
+	jit_word_t (*f)(jit_word_t, jit_word_t) = ret;
+
+	ASSERT(f(0xfe, 1) == 0x7f);
+	ASSERT(f(0x1fffc, 2) == 0x7fff);
+	ASSERT(f(0x40000000, 30) == 1);
+	ASSERT(f(0x20000000, 29) == 1);
+	ASSERT(f(0x10000000, 28) == 1);
+	ASSERT(f(0x810000, 16) == 0x81);
+	ASSERT(f(0x20000, 17) == 1);
+	ASSERT(f(0x40000, 18) == 1);
+	ASSERT(f(0x7f8000, 15) == 0xff);
+	ASSERT(f(0x1000000, 24) == 1);
+	ASSERT(f(0x7fffffff, 0) == 0x7fffffff);
+#if EJIT_WORDSIZE == 32
+	ASSERT(f(0xfffffff8, 3) == 0xffffffff);
+	ASSERT(f(0x80000000, 31) == 0xffffffff);
+	ASSERT(f(0xffffff00, 8) == 0xffffffff);
+#else
+	ASSERT(f(0x3fffffff8, 3) == 0x7fffffff);
+	ASSERT(f(0xffffffc080000000, 31) == 0xffffffffffffff81);
+	ASSERT(f(0xffffff00, 8) == 0xffffff);
+	ASSERT(f(0xfe00000000, 33) == 0x7f);
+	ASSERT(f(0x1ffffc00000000, 34) == 0x7ffff);
+	ASSERT(f(0xfffffff800000000, 29) == 0xffffffffffffffc0);
+	ASSERT(f(0x8000000000000000, 63) == 0xffffffffffffffff);
+	ASSERT(f(0x4000000000000000, 62) == 1);
+	ASSERT(f(0x2000000000000000, 61) == 1);
+	ASSERT(f(0x1000000000000000, 60) == 1);
+	ASSERT(f(0x81000000000000, 48) == 0x81);
+	ASSERT(f(0x2000000000000, 49) == 1);
+	ASSERT(f(0x10000000000, 40) == 1);
+	ASSERT(f(0x7f800000000000, 47) == 0xff);
+	ASSERT(f(0x100000000000000, 56) == 1);
+	ASSERT(f(0xffffff0000000000, 40) == 0xffffffffffffffff);
+	ASSERT(f(0xfffffffe00000000, 33) == 0xffffffffffffffff);
+	ASSERT(f(0x8000000000000001, 63) == 0xffffffffffffffff);
+	ASSERT(f(0x1000000000000, 48) == 1);
+	ASSERT(f(0xffff800000000000, 47) == 0xffffffffffffffff);
+#endif
+}
+
+int
+main (int argc, char *argv[])
+{
+	return main_helper(argc, argv, run_test);
+}