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Implement some multiplies

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This commit is contained in:
Tillmann Karras 2016-08-05 02:03:23 +01:00
parent 72c503016c
commit eb2e6e8bea
4 changed files with 174 additions and 21 deletions
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35
tests/arm/fuzz_arm.cpp
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@ -601,3 +601,38 @@ TEST_CASE("Fuzz ARM Load/Store instructions", "[JitX64]") {
}
}
*/
TEST_CASE("Fuzz ARM multiply instructions", "[JitX64]") {
auto validate_d_m_n = [](u32 inst) -> bool {
return Dynarmic::Common::Bits<16, 19>(inst) != 15 &&
Dynarmic::Common::Bits<8, 11>(inst) != 15 &&
Dynarmic::Common::Bits<0, 3>(inst) != 15;
};
auto validate_d_a_m_n = [&](u32 inst) -> bool {
return validate_d_m_n(inst) &&
Dynarmic::Common::Bits<12, 15>(inst) != 15;
};
auto validate_h_l_m_n = [&](u32 inst) -> bool {
return validate_d_a_m_n(inst) &&
Dynarmic::Common::Bits<12, 15>(inst) != Dynarmic::Common::Bits<16, 19>(inst);
};
const std::array<InstructionGenerator, 7> instructions = {
{
InstructionGenerator("cccc0000001Sddddaaaammmm1001nnnn", validate_d_a_m_n), // MLA
InstructionGenerator("cccc0000000Sdddd0000mmmm1001nnnn", validate_d_m_n), // MUL
InstructionGenerator("cccc0000111Sddddaaaammmm1001nnnn", validate_h_l_m_n), // SMLAL
InstructionGenerator("cccc0000110Sddddaaaammmm1001nnnn", validate_h_l_m_n), // SMULL
InstructionGenerator("cccc00000100ddddaaaammmm1001nnnn", validate_h_l_m_n), // UMAAL
InstructionGenerator("cccc0000101Sddddaaaammmm1001nnnn", validate_h_l_m_n), // UMLAL
InstructionGenerator("cccc0000100Sddddaaaammmm1001nnnn", validate_h_l_m_n), // UMULL
}
};
SECTION("Multiply") {
FuzzJitArm(2, 2, 10000, [&]() -> u32 {
return instructions[RandInt<size_t>(0, instructions.size() - 1)].Generate();
});
}
}