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Implement QADD, QSUB, QDADD, QDSUB

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MerryMage
2016-12-15 22:33:20 +00:00
parent b178ab3bec
commit 96e46ba6b5
8 changed files with 210 additions and 43 deletions
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23
tests/arm/fuzz_arm.cpp
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@@ -985,6 +985,29 @@ TEST_CASE("Test ARM misc instructions", "[JitX64]") {
}
}
TEST_CASE("Fuzz ARM saturated instructions", "[JitX64]") {
auto is_valid = [](u32 inst) -> bool {
// R15 as Rd, Rn, or Rm is UNPREDICTABLE
return Bits<16, 19>(inst) != 0b1111 &&
Bits<12, 15>(inst) != 0b1111 &&
Bits<0, 3>(inst) != 0b1111;
};
const std::array<InstructionGenerator, 4> instructions = {{
InstructionGenerator("cccc00010000nnnndddd00000101mmmm", is_valid), // QADD
InstructionGenerator("cccc00010010nnnndddd00000101mmmm", is_valid), // QSUB
InstructionGenerator("cccc00010100nnnndddd00000101mmmm", is_valid), // QDADD
InstructionGenerator("cccc00010110nnnndddd00000101mmmm", is_valid), // QDSUB
}};
SECTION("Saturated") {
FuzzJitArm(4, 5, 10000, [&instructions]() -> u32 {
return instructions[RandInt<size_t>(0, instructions.size() - 1)].Generate();
});
}
}
TEST_CASE("Fuzz ARM packing instructions", "[JitX64]") {
auto is_pkh_valid = [](u32 inst) -> bool {
// R15 as Rd, Rn, or Rm is UNPREDICTABLE