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#include "AArch64Subtarget.h"
#include "AArch64TargetMachine.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/TargetSelect.h"
#include "gtest/gtest.h"
#include <initializer_list>
#include <memory>
using namespace llvm;
namespace {
struct AddrMode : public TargetLowering::AddrMode {
constexpr AddrMode(GlobalValue *GV, int64_t Offs, bool HasBase, int64_t S,
int64_t SOffs = 0) {
BaseGV = GV;
BaseOffs = Offs;
HasBaseReg = HasBase;
Scale = S;
ScalableOffset = SOffs;
}
};
struct TestCase {
AddrMode AM;
unsigned TypeBits;
bool Result;
};
const std::initializer_list<TestCase> Tests = {
// {BaseGV, BaseOffs, HasBaseReg, Scale}, Bits, Result
{{reinterpret_cast<GlobalValue *>(-1), 0, false, 0}, 64, false},
{{nullptr, 8, true, 1}, 64, false},
{{nullptr, 0, false, 2}, 64, true},
{{nullptr, 0, false, 1}, 64, true},
{{nullptr, 4, false, 0}, 64, false},
{{nullptr, 0, true, 1}, 64, true},
{{nullptr, 0, true, 1}, 32, true},
{{nullptr, 0, true, 1}, 16, true},
{{nullptr, 0, true, 1}, 8, true},
{{nullptr, 0, true, 2}, 64, false},
{{nullptr, 0, true, 2}, 32, false},
{{nullptr, 0, true, 2}, 16, true},
{{nullptr, 0, true, 2}, 8, false},
{{nullptr, 0, true, 4}, 64, false},
{{nullptr, 0, true, 4}, 32, true},
{{nullptr, 0, true, 4}, 16, false},
{{nullptr, 0, true, 4}, 8, false},
{{nullptr, 0, true, 8}, 64, true},
{{nullptr, 0, true, 8}, 32, false},
{{nullptr, 0, true, 8}, 16, false},
{{nullptr, 0, true, 8}, 8, false},
{{nullptr, 0, true, 16}, 64, false},
{{nullptr, 0, true, 16}, 32, false},
{{nullptr, 0, true, 16}, 16, false},
{{nullptr, 0, true, 16}, 8, false},
{{nullptr, -257, true, 0}, 64, false},
{{nullptr, -256, true, 0}, 64, true},
{{nullptr, -255, true, 0}, 64, true},
{{nullptr, -1, true, 0}, 64, true},
{{nullptr, 0, true, 0}, 64, true},
{{nullptr, 1, true, 0}, 64, true},
{{nullptr, 254, true, 0}, 64, true},
{{nullptr, 255, true, 0}, 64, true},
{{nullptr, 256, true, 0}, 64, true},
{{nullptr, 257, true, 0}, 64, false},
{{nullptr, 258, true, 0}, 64, false},
{{nullptr, 259, true, 0}, 64, false},
{{nullptr, 260, true, 0}, 64, false},
{{nullptr, 261, true, 0}, 64, false},
{{nullptr, 262, true, 0}, 64, false},
{{nullptr, 263, true, 0}, 64, false},
{{nullptr, 264, true, 0}, 64, true},
{{nullptr, 4096 * 8 - 8, true, 0}, 64, true},
{{nullptr, 4096 * 8 - 7, true, 0}, 64, false},
{{nullptr, 4096 * 8 - 6, true, 0}, 64, false},
{{nullptr, 4096 * 8 - 5, true, 0}, 64, false},
{{nullptr, 4096 * 8 - 4, true, 0}, 64, false},
{{nullptr, 4096 * 8 - 3, true, 0}, 64, false},
{{nullptr, 4096 * 8 - 2, true, 0}, 64, false},
{{nullptr, 4096 * 8 - 1, true, 0}, 64, false},
{{nullptr, 4096 * 8, true, 0}, 64, false},
{{nullptr, 4096 * 8 + 1, true, 0}, 64, false},
{{nullptr, 4096 * 8 + 2, true, 0}, 64, false},
{{nullptr, 4096 * 8 + 3, true, 0}, 64, false},
{{nullptr, 4096 * 8 + 4, true, 0}, 64, false},
{{nullptr, 4096 * 8 + 5, true, 0}, 64, false},
{{nullptr, 4096 * 8 + 6, true, 0}, 64, false},
{{nullptr, 4096 * 8 + 7, true, 0}, 64, false},
{{nullptr, 4096 * 8 + 8, true, 0}, 64, false},
{{nullptr, -257, true, 0}, 32, false},
{{nullptr, -256, true, 0}, 32, true},
{{nullptr, -255, true, 0}, 32, true},
{{nullptr, -1, true, 0}, 32, true},
{{nullptr, 0, true, 0}, 32, true},
{{nullptr, 1, true, 0}, 32, true},
{{nullptr, 254, true, 0}, 32, true},
{{nullptr, 255, true, 0}, 32, true},
{{nullptr, 256, true, 0}, 32, true},
{{nullptr, 257, true, 0}, 32, false},
{{nullptr, 258, true, 0}, 32, false},
{{nullptr, 259, true, 0}, 32, false},
{{nullptr, 260, true, 0}, 32, true},
{{nullptr, 4096 * 4 - 4, true, 0}, 32, true},
{{nullptr, 4096 * 4 - 3, true, 0}, 32, false},
{{nullptr, 4096 * 4 - 2, true, 0}, 32, false},
{{nullptr, 4096 * 4 - 1, true, 0}, 32, false},
{{nullptr, 4096 * 4, true, 0}, 32, false},
{{nullptr, 4096 * 4 + 1, true, 0}, 32, false},
{{nullptr, 4096 * 4 + 2, true, 0}, 32, false},
{{nullptr, 4096 * 4 + 3, true, 0}, 32, false},
{{nullptr, 4096 * 4 + 4, true, 0}, 32, false},
{{nullptr, -257, true, 0}, 16, false},
{{nullptr, -256, true, 0}, 16, true},
{{nullptr, -255, true, 0}, 16, true},
{{nullptr, -1, true, 0}, 16, true},
{{nullptr, 0, true, 0}, 16, true},
{{nullptr, 1, true, 0}, 16, true},
{{nullptr, 254, true, 0}, 16, true},
{{nullptr, 255, true, 0}, 16, true},
{{nullptr, 256, true, 0}, 16, true},
{{nullptr, 257, true, 0}, 16, false},
{{nullptr, 258, true, 0}, 16, true},
{{nullptr, 4096 * 2 - 2, true, 0}, 16, true},
{{nullptr, 4096 * 2 - 1, true, 0}, 16, false},
{{nullptr, 4096 * 2, true, 0}, 16, false},
{{nullptr, 4096 * 2 + 1, true, 0}, 16, false},
{{nullptr, 4096 * 2 + 2, true, 0}, 16, false},
{{nullptr, -257, true, 0}, 8, false},
{{nullptr, -256, true, 0}, 8, true},
{{nullptr, -255, true, 0}, 8, true},
{{nullptr, -1, true, 0}, 8, true},
{{nullptr, 0, true, 0}, 8, true},
{{nullptr, 1, true, 0}, 8, true},
{{nullptr, 254, true, 0}, 8, true},
{{nullptr, 255, true, 0}, 8, true},
{{nullptr, 256, true, 0}, 8, true},
{{nullptr, 257, true, 0}, 8, true},
{{nullptr, 4096 - 2, true, 0}, 8, true},
{{nullptr, 4096 - 1, true, 0}, 8, true},
{{nullptr, 4096, true, 0}, 8, false},
{{nullptr, 4096 + 1, true, 0}, 8, false},
};
struct SVETestCase {
AddrMode AM;
unsigned TypeBits;
unsigned NumElts;
bool Result;
};
const std::initializer_list<SVETestCase> SVETests = {
// {BaseGV, BaseOffs, HasBaseReg, Scale, SOffs}, EltBits, Count, Result
// Test immediate range -- [-8,7] vector's worth.
// <vscale x 16 x i8>, increment by one vector
{{nullptr, 0, true, 0, 16}, 8, 16, true},
// <vscale x 4 x i32>, increment by eight vectors
{{nullptr, 0, true, 0, 128}, 32, 4, false},
// <vscale x 8 x i16>, increment by seven vectors
{{nullptr, 0, true, 0, 112}, 16, 8, true},
// <vscale x 2 x i64>, decrement by eight vectors
{{nullptr, 0, true, 0, -128}, 64, 2, true},
// <vscale x 16 x i8>, decrement by nine vectors
{{nullptr, 0, true, 0, -144}, 8, 16, false},
// Half the size of a vector register, but allowable with extending
// loads and truncating stores
// <vscale x 8 x i8>, increment by three vectors
{{nullptr, 0, true, 0, 24}, 8, 8, true},
// Test invalid types or offsets
// <vscale x 5 x i32>, increment by one vector (base size > 16B)
{{nullptr, 0, true, 0, 20}, 32, 5, false},
// <vscale x 8 x i16>, increment by half a vector
{{nullptr, 0, true, 0, 8}, 16, 8, false},
// <vscale x 3 x i8>, increment by 3 vectors (non-power-of-two)
{{nullptr, 0, true, 0, 9}, 8, 3, false},
// Scalable and fixed offsets
// <vscale x 16 x i8>, increment by 32 then decrement by vscale x 16
{{nullptr, 32, true, 0, -16}, 8, 16, false},
};
} // namespace
TEST(AddressingModes, AddressingModes) {
LLVMInitializeAArch64TargetInfo();
LLVMInitializeAArch64Target();
LLVMInitializeAArch64TargetMC();
std::string Error;
auto TT = Triple::normalize("aarch64");
const Target *T = TargetRegistry::lookupTarget(TT, Error);
std::unique_ptr<TargetMachine> TM(
T->createTargetMachine(TT, "generic", "", TargetOptions(), std::nullopt,
std::nullopt, CodeGenOptLevel::Default));
AArch64Subtarget ST(TM->getTargetTriple(), TM->getTargetCPU(),
TM->getTargetCPU(), TM->getTargetFeatureString(), *TM,
true);
auto *TLI = ST.getTargetLowering();
DataLayout DL("e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128");
LLVMContext Ctx;
for (const auto &Test : Tests) {
Type *Typ = Type::getIntNTy(Ctx, Test.TypeBits);
ASSERT_EQ(TLI->isLegalAddressingMode(DL, Test.AM, Typ, 0), Test.Result);
}
for (const auto &SVETest : SVETests) {
Type *Ty = VectorType::get(Type::getIntNTy(Ctx, SVETest.TypeBits),
ElementCount::getScalable(SVETest.NumElts));
ASSERT_EQ(TLI->isLegalAddressingMode(DL, SVETest.AM, Ty, 0),
SVETest.Result);
}
}
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