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luau/tests/AssemblyBuilderA64.test.cpp
aaron 9c588be16d
Sync to upstream/release/610 (#1154) 
# What's changed?

* Check interrupt handler inside the pattern match engine to eliminate
potential for programs to hang during string library function execution.
* Allow iteration over table properties to pass the old type solver. 

### Native Code Generation

* Use in-place memory operands for math library operations on x64.
* Replace opaque bools with separate enum classes in IrDump to improve
code maintainability.
* Translate operations on inferred vectors to IR.
* Enable support for debugging native-compiled functions in Roblox
Studio.

### New Type Solver

* Rework type inference for boolean and string literals to introduce
bounded free types (bounded below by the singleton type, and above by
the primitive type) and reworked primitive type constraint to decide
which is the appropriate type for the literal.
* Introduce `FunctionCheckConstraint` to handle bidirectional
typechecking for function calls, pushing the expected parameter types
from the function onto the arguments.
* Introduce `union` and `intersect` type families to compute deferred
simplified unions and intersections to be employed by the constraint
generation logic in the new solver.
* Implement support for expanding the domain of local types in
`Unifier2`.
* Rework type inference for iteration variables bound by for in loops to
use local types.
* Change constraint blocking logic to use a set to prevent accidental
re-blocking.
* Add logic to detect missing return statements in functions.

### Internal Contributors

Co-authored-by: Aaron Weiss <aaronweiss@roblox.com>
Co-authored-by: Alexander McCord <amccord@roblox.com>
Co-authored-by: Andy Friesen <afriesen@roblox.com>
Co-authored-by: Aviral Goel <agoel@roblox.com>
Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>

---------

Co-authored-by: Alexander McCord <amccord@roblox.com>
Co-authored-by: Andy Friesen <afriesen@roblox.com>
Co-authored-by: Vighnesh <vvijay@roblox.com>
Co-authored-by: Aviral Goel <agoel@roblox.com>
Co-authored-by: David Cope <dcope@roblox.com>
Co-authored-by: Lily Brown <lbrown@roblox.com>
Co-authored-by: Vyacheslav Egorov <vegorov@roblox.com>
2024-01-26 19:20:56 -08:00

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// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
#include "Luau/AssemblyBuilderA64.h"
#include "Luau/StringUtils.h"
#include "doctest.h"
#include <string.h>
using namespace Luau::CodeGen;
using namespace Luau::CodeGen::A64;
static std::string bytecodeAsArray(const std::vector<uint8_t>& bytecode)
{
std::string result = "{";
for (size_t i = 0; i < bytecode.size(); i++)
Luau::formatAppend(result, "%s0x%02x", i == 0 ? "" : ", ", bytecode[i]);
return result.append("}");
}
static std::string bytecodeAsArray(const std::vector<uint32_t>& code)
{
std::string result = "{";
for (size_t i = 0; i < code.size(); i++)
Luau::formatAppend(result, "%s0x%08x", i == 0 ? "" : ", ", code[i]);
return result.append("}");
}
class AssemblyBuilderA64Fixture
{
public:
bool check(void (*f)(AssemblyBuilderA64& build), std::vector<uint32_t> code, std::vector<uint8_t> data = {}, unsigned int features = 0)
{
AssemblyBuilderA64 build(/* logText= */ false, features);
f(build);
build.finalize();
if (build.code != code)
{
printf("Expected code: %s\nReceived code: %s\n", bytecodeAsArray(code).c_str(), bytecodeAsArray(build.code).c_str());
return false;
}
if (build.data != data)
{
printf("Expected data: %s\nReceived data: %s\n", bytecodeAsArray(data).c_str(), bytecodeAsArray(build.data).c_str());
return false;
}
return true;
}
};
// armconverter.com can be used to validate instruction sequences
TEST_SUITE_BEGIN("A64Assembly");
#define SINGLE_COMPARE(inst, ...) \
CHECK(check( \
[](AssemblyBuilderA64& build) { \
build.inst; \
}, \
{__VA_ARGS__}))
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "Unary")
{
SINGLE_COMPARE(neg(x0, x1), 0xCB0103E0);
SINGLE_COMPARE(neg(w0, w1), 0x4B0103E0);
SINGLE_COMPARE(mvn_(x0, x1), 0xAA2103E0);
SINGLE_COMPARE(clz(x0, x1), 0xDAC01020);
SINGLE_COMPARE(clz(w0, w1), 0x5AC01020);
SINGLE_COMPARE(rbit(x0, x1), 0xDAC00020);
SINGLE_COMPARE(rbit(w0, w1), 0x5AC00020);
SINGLE_COMPARE(rev(w0, w1), 0x5AC00820);
SINGLE_COMPARE(rev(x0, x1), 0xDAC00C20);
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "Binary")
{
// reg, reg
SINGLE_COMPARE(add(x0, x1, x2), 0x8B020020);
SINGLE_COMPARE(add(w0, w1, w2), 0x0B020020);
SINGLE_COMPARE(add(x0, x1, x2, 7), 0x8B021C20);
SINGLE_COMPARE(add(x0, x1, x2, -7), 0x8B421C20);
SINGLE_COMPARE(sub(x0, x1, x2), 0xCB020020);
SINGLE_COMPARE(and_(x0, x1, x2), 0x8A020020);
SINGLE_COMPARE(and_(x0, x1, x2, 7), 0x8A021C20);
SINGLE_COMPARE(and_(x0, x1, x2, -7), 0x8A421C20);
SINGLE_COMPARE(bic(x0, x1, x2), 0x8A220020);
SINGLE_COMPARE(orr(x0, x1, x2), 0xAA020020);
SINGLE_COMPARE(eor(x0, x1, x2), 0xCA020020);
SINGLE_COMPARE(lsl(x0, x1, x2), 0x9AC22020);
SINGLE_COMPARE(lsl(w0, w1, w2), 0x1AC22020);
SINGLE_COMPARE(lsr(x0, x1, x2), 0x9AC22420);
SINGLE_COMPARE(asr(x0, x1, x2), 0x9AC22820);
SINGLE_COMPARE(ror(x0, x1, x2), 0x9AC22C20);
SINGLE_COMPARE(cmp(x0, x1), 0xEB01001F);
SINGLE_COMPARE(tst(x0, x1), 0xEA01001F);
// reg, imm
SINGLE_COMPARE(add(x3, x7, 78), 0x910138E3);
SINGLE_COMPARE(add(w3, w7, 78), 0x110138E3);
SINGLE_COMPARE(sub(w3, w7, 78), 0x510138E3);
SINGLE_COMPARE(cmp(w0, 42), 0x7100A81F);
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "BinaryExtended")
{
// reg, reg
SINGLE_COMPARE(add(x0, x1, w2, 3), 0x8B224C20);
SINGLE_COMPARE(sub(x0, x1, w2, 3), 0xCB224C20);
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "BinaryImm")
{
// instructions
SINGLE_COMPARE(and_(w1, w2, 1), 0x12000041);
SINGLE_COMPARE(orr(w1, w2, 1), 0x32000041);
SINGLE_COMPARE(eor(w1, w2, 1), 0x52000041);
SINGLE_COMPARE(tst(w1, 1), 0x7200003f);
// various mask forms
SINGLE_COMPARE(and_(w0, w0, 1), 0x12000000);
SINGLE_COMPARE(and_(w0, w0, 3), 0x12000400);
SINGLE_COMPARE(and_(w0, w0, 7), 0x12000800);
SINGLE_COMPARE(and_(w0, w0, 2147483647), 0x12007800);
SINGLE_COMPARE(and_(w0, w0, 6), 0x121F0400);
SINGLE_COMPARE(and_(w0, w0, 12), 0x121E0400);
SINGLE_COMPARE(and_(w0, w0, 2147483648), 0x12010000);
// shifts
SINGLE_COMPARE(lsl(w1, w2, 1), 0x531F7841);
SINGLE_COMPARE(lsl(x1, x2, 1), 0xD37FF841);
SINGLE_COMPARE(lsr(w1, w2, 1), 0x53017C41);
SINGLE_COMPARE(lsr(x1, x2, 1), 0xD341FC41);
SINGLE_COMPARE(asr(w1, w2, 1), 0x13017C41);
SINGLE_COMPARE(asr(x1, x2, 1), 0x9341FC41);
SINGLE_COMPARE(ror(w1, w2, 1), 0x13820441);
SINGLE_COMPARE(ror(x1, x2, 1), 0x93C20441);
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "Bitfield")
{
SINGLE_COMPARE(ubfiz(x1, x2, 37, 5), 0xD35B1041);
SINGLE_COMPARE(ubfx(x1, x2, 37, 5), 0xD365A441);
SINGLE_COMPARE(sbfiz(x1, x2, 37, 5), 0x935B1041);
SINGLE_COMPARE(sbfx(x1, x2, 37, 5), 0x9365A441);
SINGLE_COMPARE(ubfiz(w1, w2, 17, 5), 0x530F1041);
SINGLE_COMPARE(ubfx(w1, w2, 17, 5), 0x53115441);
SINGLE_COMPARE(sbfiz(w1, w2, 17, 5), 0x130F1041);
SINGLE_COMPARE(sbfx(w1, w2, 17, 5), 0x13115441);
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "Loads")
{
// address forms
SINGLE_COMPARE(ldr(x0, x1), 0xF9400020);
SINGLE_COMPARE(ldr(x0, mem(x1, 8)), 0xF9400420);
SINGLE_COMPARE(ldr(x0, mem(x1, x7)), 0xF8676820);
SINGLE_COMPARE(ldr(x0, mem(x1, -7)), 0xF85F9020);
// load sizes
SINGLE_COMPARE(ldr(x0, x1), 0xF9400020);
SINGLE_COMPARE(ldr(w0, x1), 0xB9400020);
SINGLE_COMPARE(ldrb(w0, x1), 0x39400020);
SINGLE_COMPARE(ldrh(w0, x1), 0x79400020);
SINGLE_COMPARE(ldrsb(x0, x1), 0x39800020);
SINGLE_COMPARE(ldrsb(w0, x1), 0x39C00020);
SINGLE_COMPARE(ldrsh(x0, x1), 0x79800020);
SINGLE_COMPARE(ldrsh(w0, x1), 0x79C00020);
SINGLE_COMPARE(ldrsw(x0, x1), 0xB9800020);
// load sizes x offset scaling
SINGLE_COMPARE(ldr(x0, mem(x1, 8)), 0xF9400420);
SINGLE_COMPARE(ldr(w0, mem(x1, 8)), 0xB9400820);
SINGLE_COMPARE(ldrb(w0, mem(x1, 8)), 0x39402020);
SINGLE_COMPARE(ldrh(w0, mem(x1, 8)), 0x79401020);
SINGLE_COMPARE(ldrsb(w0, mem(x1, 8)), 0x39C02020);
SINGLE_COMPARE(ldrsh(w0, mem(x1, 8)), 0x79C01020);
// paired loads
SINGLE_COMPARE(ldp(x0, x1, mem(x2, 8)), 0xA9408440);
SINGLE_COMPARE(ldp(w0, w1, mem(x2, -8)), 0x297F0440);
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "Stores")
{
// address forms
SINGLE_COMPARE(str(x0, x1), 0xF9000020);
SINGLE_COMPARE(str(x0, mem(x1, 8)), 0xF9000420);
SINGLE_COMPARE(str(x0, mem(x1, x7)), 0xF8276820);
SINGLE_COMPARE(strh(w0, mem(x1, -7)), 0x781F9020);
// store sizes
SINGLE_COMPARE(str(x0, x1), 0xF9000020);
SINGLE_COMPARE(str(w0, x1), 0xB9000020);
SINGLE_COMPARE(strb(w0, x1), 0x39000020);
SINGLE_COMPARE(strh(w0, x1), 0x79000020);
// store sizes x offset scaling
SINGLE_COMPARE(str(x0, mem(x1, 8)), 0xF9000420);
SINGLE_COMPARE(str(w0, mem(x1, 8)), 0xB9000820);
SINGLE_COMPARE(strb(w0, mem(x1, 8)), 0x39002020);
SINGLE_COMPARE(strh(w0, mem(x1, 8)), 0x79001020);
// paired stores
SINGLE_COMPARE(stp(x0, x1, mem(x2, 8)), 0xA9008440);
SINGLE_COMPARE(stp(w0, w1, mem(x2, -8)), 0x293F0440);
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "Moves")
{
SINGLE_COMPARE(mov(x0, x1), 0xAA0103E0);
SINGLE_COMPARE(mov(w0, w1), 0x2A0103E0);
SINGLE_COMPARE(movz(x0, 42), 0xD2800540);
SINGLE_COMPARE(movz(w0, 42), 0x52800540);
SINGLE_COMPARE(movn(x0, 42), 0x92800540);
SINGLE_COMPARE(movn(w0, 42), 0x12800540);
SINGLE_COMPARE(movk(x0, 42, 16), 0xF2A00540);
CHECK(check(
[](AssemblyBuilderA64& build) {
build.mov(x0, 42);
},
{0xD2800540}));
CHECK(check(
[](AssemblyBuilderA64& build) {
build.mov(x0, 424242);
},
{0xD28F2640, 0xF2A000C0}));
CHECK(check(
[](AssemblyBuilderA64& build) {
build.mov(x0, -42);
},
{0x92800520}));
CHECK(check(
[](AssemblyBuilderA64& build) {
build.mov(x0, -424242);
},
{0x928F2620, 0xF2BFFF20}));
CHECK(check(
[](AssemblyBuilderA64& build) {
build.mov(x0, -65536);
},
{0x929FFFE0}));
CHECK(check(
[](AssemblyBuilderA64& build) {
build.mov(x0, -65537);
},
{0x92800000, 0xF2BFFFC0}));
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "ControlFlow")
{
// Jump back
CHECK(check(
[](AssemblyBuilderA64& build) {
Label start = build.setLabel();
build.mov(x0, x1);
build.b(ConditionA64::Equal, start);
},
{0xAA0103E0, 0x54FFFFE0}));
// Jump forward
CHECK(check(
[](AssemblyBuilderA64& build) {
Label skip;
build.b(ConditionA64::Equal, skip);
build.mov(x0, x1);
build.setLabel(skip);
},
{0x54000040, 0xAA0103E0}));
// Jumps
CHECK(check(
[](AssemblyBuilderA64& build) {
Label skip;
build.b(ConditionA64::Equal, skip);
build.cbz(x0, skip);
build.cbnz(x0, skip);
build.tbz(x0, 5, skip);
build.tbnz(x0, 5, skip);
build.setLabel(skip);
build.b(skip);
build.bl(skip);
},
{0x540000A0, 0xB4000080, 0xB5000060, 0x36280040, 0x37280020, 0x14000000, 0x97ffffff}));
// Basic control flow
SINGLE_COMPARE(br(x0), 0xD61F0000);
SINGLE_COMPARE(blr(x0), 0xD63F0000);
SINGLE_COMPARE(ret(), 0xD65F03C0);
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "StackOps")
{
SINGLE_COMPARE(mov(x0, sp), 0x910003E0);
SINGLE_COMPARE(mov(sp, x0), 0x9100001F);
SINGLE_COMPARE(add(sp, sp, 4), 0x910013FF);
SINGLE_COMPARE(sub(sp, sp, 4), 0xD10013FF);
SINGLE_COMPARE(add(x0, sp, 4), 0x910013E0);
SINGLE_COMPARE(sub(sp, x0, 4), 0xD100101F);
SINGLE_COMPARE(ldr(x0, mem(sp, 8)), 0xF94007E0);
SINGLE_COMPARE(str(x0, mem(sp, 8)), 0xF90007E0);
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "Constants")
{
// clang-format off
CHECK(check(
[](AssemblyBuilderA64& build) {
char arr[12] = "hello world";
build.adr(x0, arr, 12);
build.adr(x0, uint64_t(0x1234567887654321));
build.adr(x0, 1.0);
},
{
0x10ffffa0, 0x10ffff20, 0x10fffec0
},
{
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x3f,
0x21, 0x43, 0x65, 0x87, 0x78, 0x56, 0x34, 0x12,
0x00, 0x00, 0x00, 0x00, // 4b padding to align double
'h', 'e', 'l', 'l', 'o', ' ', 'w', 'o', 'r', 'l', 'd', 0x0,
}));
// clang-format on
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "AddressOfLabel")
{
// clang-format off
CHECK(check(
[](AssemblyBuilderA64& build) {
Label label;
build.adr(x0, label);
build.add(x0, x0, x0);
build.setLabel(label);
},
{
0x10000040, 0x8b000000,
}));
// clang-format on
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "FPBasic")
{
SINGLE_COMPARE(fmov(d0, d1), 0x1E604020);
SINGLE_COMPARE(fmov(d0, x1), 0x9E670020);
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "FPMath")
{
SINGLE_COMPARE(fabs(d1, d2), 0x1E60C041);
SINGLE_COMPARE(fadd(d1, d2, d3), 0x1E632841);
SINGLE_COMPARE(fadd(s29, s29, s28), 0x1E3C2BBD);
SINGLE_COMPARE(fdiv(d1, d2, d3), 0x1E631841);
SINGLE_COMPARE(fdiv(s29, s29, s28), 0x1E3C1BBD);
SINGLE_COMPARE(fmul(d1, d2, d3), 0x1E630841);
SINGLE_COMPARE(fmul(s29, s29, s28), 0x1E3C0BBD);
SINGLE_COMPARE(fneg(d1, d2), 0x1E614041);
SINGLE_COMPARE(fneg(s30, s30), 0x1E2143DE);
SINGLE_COMPARE(fsqrt(d1, d2), 0x1E61C041);
SINGLE_COMPARE(fsub(d1, d2, d3), 0x1E633841);
SINGLE_COMPARE(fsub(s29, s29, s28), 0x1E3C3BBD);
SINGLE_COMPARE(frinta(d1, d2), 0x1E664041);
SINGLE_COMPARE(frintm(d1, d2), 0x1E654041);
SINGLE_COMPARE(frintp(d1, d2), 0x1E64C041);
SINGLE_COMPARE(fcvt(s1, d2), 0x1E624041);
SINGLE_COMPARE(fcvt(d1, s2), 0x1E22C041);
SINGLE_COMPARE(fcvtzs(w1, d2), 0x1E780041);
SINGLE_COMPARE(fcvtzs(x1, d2), 0x9E780041);
SINGLE_COMPARE(fcvtzu(w1, d2), 0x1E790041);
SINGLE_COMPARE(fcvtzu(x1, d2), 0x9E790041);
SINGLE_COMPARE(scvtf(d1, w2), 0x1E620041);
SINGLE_COMPARE(scvtf(d1, x2), 0x9E620041);
SINGLE_COMPARE(ucvtf(d1, w2), 0x1E630041);
SINGLE_COMPARE(ucvtf(d1, x2), 0x9E630041);
CHECK(check(
[](AssemblyBuilderA64& build) {
build.fjcvtzs(w1, d2);
},
{0x1E7E0041}, {}, A64::Feature_JSCVT));
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "FPLoadStore")
{
// address forms
SINGLE_COMPARE(ldr(d0, x1), 0xFD400020);
SINGLE_COMPARE(ldr(d0, mem(x1, 8)), 0xFD400420);
SINGLE_COMPARE(ldr(d0, mem(x1, x7)), 0xFC676820);
SINGLE_COMPARE(ldr(d0, mem(x1, -7)), 0xFC5F9020);
SINGLE_COMPARE(str(d0, x1), 0xFD000020);
SINGLE_COMPARE(str(d0, mem(x1, 8)), 0xFD000420);
SINGLE_COMPARE(str(d0, mem(x1, x7)), 0xFC276820);
SINGLE_COMPARE(str(d0, mem(x1, -7)), 0xFC1F9020);
// load/store sizes
SINGLE_COMPARE(ldr(s0, x1), 0xBD400020);
SINGLE_COMPARE(ldr(d0, x1), 0xFD400020);
SINGLE_COMPARE(ldr(q0, x1), 0x3DC00020);
SINGLE_COMPARE(str(s0, x1), 0xBD000020);
SINGLE_COMPARE(str(d0, x1), 0xFD000020);
SINGLE_COMPARE(str(q0, x1), 0x3D800020);
// load/store sizes x offset scaling
SINGLE_COMPARE(ldr(q0, mem(x1, 16)), 0x3DC00420);
SINGLE_COMPARE(ldr(d0, mem(x1, 16)), 0xFD400820);
SINGLE_COMPARE(ldr(s0, mem(x1, 16)), 0xBD401020);
SINGLE_COMPARE(str(q0, mem(x1, 16)), 0x3D800420);
SINGLE_COMPARE(str(d0, mem(x1, 16)), 0xFD000820);
SINGLE_COMPARE(str(s0, mem(x1, 16)), 0xBD001020);
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "FPInsertExtract")
{
SINGLE_COMPARE(ins_4s(q29, w17, 3), 0x4E1C1E3D);
SINGLE_COMPARE(ins_4s(q31, 0, q29, 0), 0x6E0407BF);
SINGLE_COMPARE(dup_4s(s29, q31, 2), 0x5E1407FD);
SINGLE_COMPARE(dup_4s(q29, q30, 0), 0x4E0407DD);
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "FPCompare")
{
SINGLE_COMPARE(fcmp(d0, d1), 0x1E612000);
SINGLE_COMPARE(fcmpz(d1), 0x1E602028);
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "FPImm")
{
SINGLE_COMPARE(fmov(d0, 0), 0x2F00E400);
SINGLE_COMPARE(fmov(d0, 0.125), 0x1E681000);
SINGLE_COMPARE(fmov(d0, -0.125), 0x1E781000);
CHECK(!AssemblyBuilderA64::isFmovSupported(-0.0));
CHECK(!AssemblyBuilderA64::isFmovSupported(0.12389));
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "AddressOffsetSize")
{
SINGLE_COMPARE(ldr(w0, mem(x1, 16)), 0xB9401020);
SINGLE_COMPARE(ldr(x0, mem(x1, 16)), 0xF9400820);
SINGLE_COMPARE(ldr(d0, mem(x1, 16)), 0xFD400820);
SINGLE_COMPARE(ldr(q0, mem(x1, 16)), 0x3DC00420);
SINGLE_COMPARE(str(w0, mem(x1, 16)), 0xB9001020);
SINGLE_COMPARE(str(x0, mem(x1, 16)), 0xF9000820);
SINGLE_COMPARE(str(d0, mem(x1, 16)), 0xFD000820);
SINGLE_COMPARE(str(q0, mem(x1, 16)), 0x3D800420);
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "Conditionals")
{
SINGLE_COMPARE(csel(x0, x1, x2, ConditionA64::Equal), 0x9A820020);
SINGLE_COMPARE(csel(w0, w1, w2, ConditionA64::Equal), 0x1A820020);
SINGLE_COMPARE(fcsel(d0, d1, d2, ConditionA64::Equal), 0x1E620C20);
SINGLE_COMPARE(cset(x1, ConditionA64::Less), 0x9A9FA7E1);
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "Undefined")
{
SINGLE_COMPARE(udf(), 0x00000000);
}
TEST_CASE_FIXTURE(AssemblyBuilderA64Fixture, "PrePostIndexing")
{
SINGLE_COMPARE(ldr(x0, mem(x1, 1)), 0xF8401020);
SINGLE_COMPARE(ldr(x0, mem(x1, 1, AddressKindA64::pre)), 0xF8401C20);
SINGLE_COMPARE(ldr(x0, mem(x1, 1, AddressKindA64::post)), 0xF8401420);
SINGLE_COMPARE(ldr(q0, mem(x1, 1)), 0x3CC01020);
SINGLE_COMPARE(ldr(q0, mem(x1, 1, AddressKindA64::pre)), 0x3CC01C20);
SINGLE_COMPARE(ldr(q0, mem(x1, 1, AddressKindA64::post)), 0x3CC01420);
SINGLE_COMPARE(str(x0, mem(x1, 1)), 0xF8001020);
SINGLE_COMPARE(str(x0, mem(x1, 1, AddressKindA64::pre)), 0xF8001C20);
SINGLE_COMPARE(str(x0, mem(x1, 1, AddressKindA64::post)), 0xF8001420);
SINGLE_COMPARE(str(q0, mem(x1, 1)), 0x3C801020);
SINGLE_COMPARE(str(q0, mem(x1, 1, AddressKindA64::pre)), 0x3C801C20);
SINGLE_COMPARE(str(q0, mem(x1, 1, AddressKindA64::post)), 0x3C801420);
}
TEST_CASE("LogTest")
{
AssemblyBuilderA64 build(/* logText= */ true);
build.add(sp, sp, 4);
build.add(w0, w1, w2);
build.add(x0, x1, x2, 2);
build.add(x0, x1, x2, -2);
build.add(w7, w8, 5);
build.add(x7, x8, 5);
build.ldr(x7, x8);
build.ldr(x7, mem(x8, 8));
build.ldr(x7, mem(x8, x9));
build.mov(x1, x2);
build.movk(x1, 42, 16);
build.cmp(x1, x2);
build.blr(x0);
Label l;
build.b(ConditionA64::Plus, l);
build.cbz(x7, l);
build.ldp(x0, x1, mem(x8, 8));
build.adr(x0, l);
build.fabs(d1, d2);
build.ldr(q1, x2);
build.csel(x0, x1, x2, ConditionA64::Equal);
build.cset(x0, ConditionA64::Equal);
build.fcmp(d0, d1);
build.fcmpz(d0);
build.fmov(d0, 0.25);
build.tbz(x0, 5, l);
build.fcvt(s1, d2);
build.ubfx(x1, x2, 37, 5);
build.ldr(x0, mem(x1, 1));
build.ldr(x0, mem(x1, 1, AddressKindA64::pre));
build.ldr(x0, mem(x1, 1, AddressKindA64::post));
build.add(x1, x2, w3, 3);
build.ins_4s(q29, w17, 3);
build.ins_4s(q31, 1, q29, 2);
build.dup_4s(s29, q31, 2);
build.dup_4s(q29, q30, 0);
build.setLabel(l);
build.ret();
build.finalize();
std::string expected = R"(
add sp,sp,#4
add w0,w1,w2
add x0,x1,x2 LSL #2
add x0,x1,x2 LSR #2
add w7,w8,#5
add x7,x8,#5
ldr x7,[x8]
ldr x7,[x8,#8]
ldr x7,[x8,x9]
mov x1,x2
movk x1,#42 LSL #16
cmp x1,x2
blr x0
b.pl .L1
cbz x7,.L1
ldp x0,x1,[x8,#8]
adr x0,.L1
fabs d1,d2
ldr q1,[x2]
csel x0,x1,x2,eq
cset x0,eq
fcmp d0,d1
fcmp d0,#0
fmov d0,#0.25
tbz x0,#5,.L1
fcvt s1,d2
ubfx x1,x2,#3705
ldr x0,[x1,#1]
ldr x0,[x1,#1]!
ldr x0,[x1]!,#1
add x1,x2,w3 UXTW #3
ins v29.s[3],w17
ins v31.s[1],v29.s[2]
dup s29,v31.s[2]
dup v29.4s,v30.s[0]
.L1:
ret
)";
CHECK("\n" + build.text == expected);
}
TEST_SUITE_END();
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