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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/boaddi_u.c | |
parent | 61a8c9300daeb730fe5094f889bf13241942be84 (diff) | |
parent | 573af9c19b5e8156ca27413d6f3ed6ef462a2031 (diff) | |
download | guile-985faf35c13704e57a87fac88064bdb08a74c9b5.tar.gz |
Replace GNU Lightning with Lightening
Diffstat (limited to 'libguile/lightning/tests/boaddi_u.c')
-rw-r--r-- | libguile/lightning/tests/boaddi_u.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/libguile/lightning/tests/boaddi_u.c b/libguile/lightning/tests/boaddi_u.c new file mode 100644 index 000000000..66b261b3f --- /dev/null +++ b/libguile/lightning/tests/boaddi_u.c @@ -0,0 +1,43 @@ +#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_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_reloc_t r = jit_boaddi_u(j, JIT_R0, 1); + 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) = jit_end(j, NULL); + + ASSERT(f(-1) == overflowed); + ASSERT(f(0) == 1); + ASSERT(f(1) == 2); + +#if __WORDSIZE == 32 + ASSERT(f(0x7fffffff) == 0x80000000); + ASSERT(f(0x80000000) == 0x80000001); + ASSERT(f(0xffffffff) == overflowed); +#else + ASSERT(f(0x7fffffffffffffff) == 0x8000000000000000); + ASSERT(f(0x8000000000000000) == 0x8000000000000001); + ASSERT(f(0xffffffffffffffff) == overflowed); +#endif +} + +int +main (int argc, char *argv[]) +{ + return main_helper(argc, argv, run_test); +} |