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70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
#include "test.h"
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static void
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maybe_save(jit_state_t *j, jit_gpr_t reg)
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{
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if (jit_class(reg) & jit_class_sav)
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jit_pushr(j, reg);
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}
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static void
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maybe_restore(jit_state_t *j, jit_gpr_t reg)
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{
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if (jit_class(reg) & jit_class_sav)
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jit_popr(j, reg);
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}
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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[] = {
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JIT_ARG_ABI_POINTER, JIT_ARG_ABI_POINTER,
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JIT_ARG_ABI_INTMAX, JIT_ARG_ABI_INTMAX
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};
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jit_arg_t args[4];
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const jit_anyreg_t regs[] = {
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{ .gpr=JIT_R0 }, { .gpr=JIT_R1 },
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{ .gpr=JIT_R2 }, { .gpr=JIT_V0 }
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};
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maybe_save(j, JIT_V0);
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maybe_save(j, JIT_V1);
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maybe_save(j, JIT_V2);
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jit_receive(j, 4, abi, args);
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jit_load_args(j, 4, abi, args, regs);
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jit_qmulr_u(j, JIT_V1, JIT_V2, JIT_R2, JIT_V0);
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jit_str(j, JIT_R0, JIT_V1);
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jit_str(j, JIT_R1, JIT_V2);
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maybe_restore(j, JIT_V2);
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maybe_restore(j, JIT_V1);
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maybe_restore(j, JIT_V0);
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jit_ret(j);
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size_t size = 0;
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void* ret = jit_end(j, &size);
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void (*f)(intmax_t*, intmax_t*, intmax_t, intmax_t) = ret;
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#define UQMUL(a, b, c, d) \
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do { \
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intmax_t C = 0, D = 0; f(&C, &D, a, b); ASSERT(C == c); ASSERT(D == d); \
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} while (0)
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#if __WORDSIZE == 32
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UQMUL(0xffffff, 0xffffff, 0xfe000001, 0xffff);
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#else
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UQMUL(0xffffffffff, 0xffffffffff, 0xfffffe0000000001, 0xffff);
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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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