mirror of
https://git.savannah.gnu.org/git/guile.git
synced 2025-05-02 04:40:29 +02:00
48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
#include "test.h"
|
|
|
|
static const intmax_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);
|
|
|
|
const jit_arg_abi_t abi[] = { JIT_ARG_ABI_INTMAX, JIT_ARG_ABI_INTMAX };
|
|
jit_arg_t args[2];
|
|
const jit_anyreg_t regs[] = { { .gpr=JIT_R0 }, { .gpr=JIT_R1 }};
|
|
|
|
jit_receive(j, 2, abi, args);
|
|
jit_load_args(j, 2, abi, args, regs);
|
|
jit_reloc_t r = jit_bxsubr(j, JIT_R0, JIT_R1);
|
|
jit_movi(j, JIT_R0, overflowed);
|
|
jit_patch_here(j, r);
|
|
jit_retr(j, JIT_R0);
|
|
|
|
intmax_t (*f)(intmax_t, intmax_t) = jit_end(j, NULL);
|
|
|
|
ASSERT(f(0, 0) == 0);
|
|
ASSERT(f(0, 1) == -1);
|
|
ASSERT(f(1, 1) == 0);
|
|
ASSERT(f(1, -1) == 2);
|
|
|
|
#if __WORDSIZE == 32
|
|
ASSERT(f(0xffffffff, 0xffffffff) == 0);
|
|
ASSERT(f(0x7fffffff, 0) == 0x7fffffff);
|
|
ASSERT(f(0x7fffffff, 1) == 0x7ffffffe);
|
|
ASSERT(f(0x7fffffff, 0x7fffffff) == 0);
|
|
ASSERT(f(0x80000000, 0x7fffffff) == overflowed);
|
|
ASSERT(f(0x7fffffff, 0x80000000) == overflowed);
|
|
ASSERT(f(0x80000000, 0x80000000) == 0);
|
|
#else
|
|
ASSERT(f(0x7fffffffffffffff, 0x7fffffffffffffff) == 0);
|
|
ASSERT(f(0x7fffffffffffffff, 0x8000000000000000) == overflowed);
|
|
ASSERT(f(0x8000000000000000, 0x7fffffffffffffff) == overflowed);
|
|
ASSERT(f(0x8000000000000000, 0x8000000000000000) == 0);
|
|
#endif
|
|
}
|
|
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
return main_helper(argc, argv, run_test);
|
|
}
|