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TranslateArm: Implement VPUSH and VPOP.

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bunnei 2016-08-13 01:51:55 -04:00 • committed by MerryMage
parent 9c82a12f8f
commit 30f3d869cc
6 changed files with 118 additions and 2 deletions
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24
tests/arm/fuzz_arm.cpp
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@ -846,3 +846,27 @@ TEST_CASE("Fuzz ARM parallel instructions", "[JitX64]") {
});
}
}
TEST_CASE("VFP: VPUSH, VPOP", "[JitX64][vfp]") {
const auto is_valid = [](u32 instr) -> bool {
auto regs = (instr & 0x100) ? (Bits<0, 7>(instr) >> 1) : Bits<0, 7>(instr);
auto base = Bits<12, 15>(instr);
unsigned d;
if (instr & 0x100) {
d = (base + ((instr & 0x400000) ? 16 : 0));
} else {
d = ((base << 1) + ((instr & 0x400000) ? 1 : 0));
}
// if regs == 0 || regs > 16 || (d+regs) > 32 then UNPREDICTABLE
return regs != 0 && regs <= 16 && (d + regs) <= 32;
};
const std::array<InstructionGenerator, 2> instructions = {{
InstructionGenerator("cccc11010D101101dddd101zvvvvvvvv", is_valid), // VPUSH
InstructionGenerator("cccc11001D111101dddd1010vvvvvvvv", is_valid), // VPOP
}};
FuzzJitArm(5, 6, 10000, [&instructions]() -> u32 {
return instructions[RandInt<size_t>(0, instructions.size() - 1)].Generate();
});
}