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author | Andy Wingo <wingo@pobox.com> | 2019-04-03 13:28:13 +0200 |
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committer | Andy Wingo <wingo@pobox.com> | 2019-04-03 13:28:13 +0200 |
commit | 985faf35c13704e57a87fac88064bdb08a74c9b5 (patch) | |
tree | bb65699c06fb0cc2414abdb3557bcdd9d356d490 /libguile/lightning/tests/boaddr_u.c | |
parent | 61a8c9300daeb730fe5094f889bf13241942be84 (diff) | |
parent | 573af9c19b5e8156ca27413d6f3ed6ef462a2031 (diff) | |
download | guile-985faf35c13704e57a87fac88064bdb08a74c9b5.tar.gz |
Replace GNU Lightning with Lightening
Diffstat (limited to 'libguile/lightning/tests/boaddr_u.c')
-rw-r--r-- | libguile/lightning/tests/boaddr_u.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/libguile/lightning/tests/boaddr_u.c b/libguile/lightning/tests/boaddr_u.c new file mode 100644 index 000000000..b9b2b4585 --- /dev/null +++ b/libguile/lightning/tests/boaddr_u.c @@ -0,0 +1,52 @@ +#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_boaddr_u(j, JIT_R0, JIT_R1); + jit_retr(j, JIT_R0); + jit_patch_here(j, r); + jit_movi(j, JIT_R0, overflowed); + jit_retr(j, JIT_R0); + + intmax_t (*f)(intmax_t, intmax_t) = jit_end(j, NULL); + + ASSERT(f(0, 0) == 0); + ASSERT(f(1, 1) == 2); + +#if __WORDSIZE == 32 + ASSERT(f(0xffffffff, 0xffffffff) == overflowed); + ASSERT(f(0x7fffffff, 0) == 0x7fffffff); + ASSERT(f(0x7fffffff, 1) == 0x80000000); + ASSERT(f(0x7fffffff, 0x7fffffff) == 0x7fffffff + 0x7fffffff); + ASSERT(f(0x7fffffff, 0x80000000) == 0xffffffff); + ASSERT(f(0x80000000, 0x80000000) == overflowed); +#else + ASSERT(f(0xffffffff, 0xffffffff) == 0xffffffffull + 0xffffffffull); + ASSERT(f(0x7fffffff, 1) == 0x80000000); + ASSERT(f(0x7fffffff, 0x7fffffff) == 0x7fffffffull + 0x7fffffffull); + ASSERT(f(0x7fffffff, 0x80000000) == 0xffffffff); + ASSERT(f(0x80000000, 0x80000000) == 0x100000000); + ASSERT(f(0xffffffffffffffff, 0xffffffffffffffff) == overflowed); + ASSERT(f(0x7fffffffffffffff, 1) == 0x8000000000000000); + ASSERT(f(0x7fffffffffffffff, 0x7fffffffffffffff) == -2); + ASSERT(f(0x7fffffffffffffff, 0x8000000000000000) == -1); + ASSERT(f(0x8000000000000000, 0x8000000000000000) == overflowed); +#endif +} + +int +main (int argc, char *argv[]) +{ + return main_helper(argc, argv, run_test); +} |