diff options
Diffstat (limited to 'libguile/lightening/tests/rshi.c')
-rw-r--r-- | libguile/lightening/tests/rshi.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/libguile/lightening/tests/rshi.c b/libguile/lightening/tests/rshi.c new file mode 100644 index 000000000..0f2cdfda7 --- /dev/null +++ b/libguile/lightening/tests/rshi.c @@ -0,0 +1,32 @@ +#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_R0 } }; + + jit_receive(j, 1, abi, args); + jit_load_args(j, 1, abi, args, regs); + + jit_rshi(j, JIT_R0, JIT_R0, 31); + jit_retr(j, JIT_R0); + + intmax_t (*f)(intmax_t) = jit_end(j, NULL); + +#if __WORDSIZE == 32 + ASSERT(f(0x80000000) == -1); +#else + ASSERT(f(0x80000000) == 1); + ASSERT(f(0x8000000000000000) == 0xffffffff00000000); +#endif +} + +int +main (int argc, char *argv[]) +{ + return main_helper(argc, argv, run_test); +} |