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luau/tests/AssemblyBuilderA64.test.cpp

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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);
}
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, "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(fdiv(d1, d2, d3), 0x1E631841);
SINGLE_COMPARE(fmul(d1, d2, d3), 0x1E630841);
SINGLE_COMPARE(fneg(d1, d2), 0x1E614041);
SINGLE_COMPARE(fsqrt(d1, d2), 0x1E61C041);
SINGLE_COMPARE(fsub(d1, d2, d3), 0x1E633841);
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, "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.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
.L1:
ret
)";
CHECK("\n" + build.text == expected);
}
TEST_SUITE_END();
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