From 49aa680ccdac46d1d2a7f9f250999b7ff7099548 Mon Sep 17 00:00:00 2001 From: Kimplul Date: Sat, 29 Jun 2024 14:20:07 +0300 Subject: start adding tests --- tests/subx.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 tests/subx.c (limited to 'tests/subx.c') diff --git a/tests/subx.c b/tests/subx.c new file mode 100644 index 0000000..b2bb3c2 --- /dev/null +++ b/tests/subx.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_movi(j, JIT_R2, 0); + jit_subcr(j, JIT_R0, JIT_R0, JIT_R1); + jit_subxi(j, JIT_R2, JIT_R2, 0); + jit_leave_jit_abi(j, 0, 0, align); + jit_retr(j, JIT_R2); + + size_t size = 0; + void* ret = jit_end(j, &size); + + jit_word_t (*f)(jit_word_t, jit_word_t) = ret; + + ASSERT(f(0, 0) == 0); + +#if EJIT_WORDSIZE == 32 + /* carry */ + ASSERT(f(0x7fffffff, 0xffffffff) == 0xffffffff); + /* overflow */ + ASSERT(f(0x80000000, 1) == 0); + /* carry */ + ASSERT(f(0x7fffffff, 0x80000000) == 0xffffffff); + /* overflow */ + ASSERT(f(0x80000000, 0x7fffffff) == 0); + /* carry+overflow */ + ASSERT(f(1, 0x80000000) == 0xffffffff); +#else + /* carry */ + ASSERT(f(0x7fffffff, 0xffffffff) == -1); + /* nothing */ + ASSERT(f(0x80000000, 1) == 0); + /* carry */ + ASSERT(f(0x7fffffff, 0x80000000) == -1); + /* nothing */ + ASSERT(f(0x80000000, 0x7fffffff) == 0); + /* carry */ + ASSERT(f(1, 0x80000000) == -1); + /* carry */ + ASSERT(f(0x7fffffffffffffff, 0xffffffffffffffff) == -1); + /* overflow */ + ASSERT(f(0x8000000000000000, 1) == 0); + /* carry */ + ASSERT(f(0x7fffffffffffffff, 0x8000000000000000) == -1); + /* overflow */ + ASSERT(f(0x8000000000000000, 0x7fffffffffffffff) == 0); + /* carry+overflow */ + ASSERT(f(1, 0x8000000000000000) == -1); +#endif +} + +int +main (int argc, char *argv[]) +{ + return main_helper(argc, argv, run_test); +} -- cgit v1.2.3