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52 lines
1.7 KiB
C
52 lines
1.7 KiB
C
#include "test.h"
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static const intmax_t overflowed = 0xcabba9e5;
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static void
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run_test(jit_state_t *j, uint8_t *arena_base, size_t arena_size)
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{
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jit_begin(j, arena_base, arena_size);
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const jit_arg_abi_t abi[] = { JIT_ARG_ABI_INTMAX, JIT_ARG_ABI_INTMAX };
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jit_arg_t args[2];
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const jit_anyreg_t regs[] = { { .gpr=JIT_R0 }, { .gpr=JIT_R1 }};
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jit_receive(j, 2, abi, args);
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jit_load_args(j, 2, abi, args, regs);
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jit_reloc_t r = jit_boaddr_u(j, JIT_R0, JIT_R1);
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jit_retr(j, JIT_R0);
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jit_patch_here(j, r);
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jit_movi(j, JIT_R0, overflowed);
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jit_retr(j, JIT_R0);
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intmax_t (*f)(intmax_t, intmax_t) = jit_end(j, NULL);
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ASSERT(f(0, 0) == 0);
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ASSERT(f(1, 1) == 2);
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#if __WORDSIZE == 32
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ASSERT(f(0xffffffff, 0xffffffff) == overflowed);
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ASSERT(f(0x7fffffff, 0) == 0x7fffffff);
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ASSERT(f(0x7fffffff, 1) == 0x80000000);
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ASSERT(f(0x7fffffff, 0x7fffffff) == 0x7fffffff + 0x7fffffff);
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ASSERT(f(0x7fffffff, 0x80000000) == 0xffffffff);
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ASSERT(f(0x80000000, 0x80000000) == overflowed);
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#else
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ASSERT(f(0xffffffff, 0xffffffff) == 0xffffffffull + 0xffffffffull);
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ASSERT(f(0x7fffffff, 1) == 0x80000000);
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ASSERT(f(0x7fffffff, 0x7fffffff) == 0x7fffffffull + 0x7fffffffull);
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ASSERT(f(0x7fffffff, 0x80000000) == 0xffffffff);
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ASSERT(f(0x80000000, 0x80000000) == 0x100000000);
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ASSERT(f(0xffffffffffffffff, 0xffffffffffffffff) == overflowed);
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ASSERT(f(0x7fffffffffffffff, 1) == 0x8000000000000000);
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ASSERT(f(0x7fffffffffffffff, 0x7fffffffffffffff) == -2);
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ASSERT(f(0x7fffffffffffffff, 0x8000000000000000) == -1);
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ASSERT(f(0x8000000000000000, 0x8000000000000000) == overflowed);
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#endif
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}
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int
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main (int argc, char *argv[])
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{
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return main_helper(argc, argv, run_test);
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}
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