From 8a98b46ef2b5673fcdf0a9a466857a5de044dfc5 Mon Sep 17 00:00:00 2001
From: Kimplul <kimi.h.kuparinen@gmail.com>
Date: Sat, 20 Apr 2024 10:47:49 +0300
Subject: add lightening jit
---
deps/lightening/tests/bxaddi.c | 39 +++++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
create mode 100644 deps/lightening/tests/bxaddi.c
(limited to 'deps/lightening/tests/bxaddi.c')
diff --git a/deps/lightening/tests/bxaddi.c b/deps/lightening/tests/bxaddi.c
new file mode 100644
index 0000000..6e872da
--- /dev/null
+++ b/deps/lightening/tests/bxaddi.c
@@ -0,0 +1,39 @@
+#include "test.h"
+
+static const jit_word_t overflowed = 0xcabba9e5;
+
+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_reloc_t r = jit_bxaddi(j, JIT_R0, 1);
+ jit_movi(j, JIT_R0, overflowed);
+ jit_patch_here(j, r);
+ jit_leave_jit_abi(j, 0, 0, align);
+ jit_retr(j, JIT_R0);
+
+ jit_word_t (*f)(jit_word_t) = jit_end(j, NULL);
+
+ ASSERT(f(-1) == 0);
+ ASSERT(f(0) == 1);
+ ASSERT(f(1) == 2);
+
+#if __WORDSIZE == 32
+ ASSERT(f(0x7fffffff) == overflowed);
+ ASSERT(f(0x80000000) == 0x80000001);
+ ASSERT(f(0xffffffff) == 0);
+#else
+ ASSERT(f(0x7fffffffffffffff) == overflowed);
+ ASSERT(f(0x8000000000000000) == 0x8000000000000001);
+ ASSERT(f(0xffffffffffffffff) == 0);
+#endif
+}
+
+int
+main (int argc, char *argv[])
+{
+ return main_helper(argc, argv, run_test);
+}
--
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