/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <dirent.h>
#include <fstream>
#include <sys/types.h>
#include <map>
#include "gtest/gtest.h"
#include "utils/arm/assembler_thumb2.h"
#include "base/hex_dump.h"
#include "common_runtime_test.h"
namespace art {
namespace arm {
// Include results file (generated manually)
#include "assembler_thumb_test_expected.cc.inc"
#ifndef HAVE_ANDROID_OS
// This controls whether the results are printed to the
// screen or compared against the expected output.
// To generate new expected output, set this to true and
// copy the output into the .cc.inc file in the form
// of the other results.
//
// When this is false, the results are not printed to the
// output, but are compared against the expected results
// in the .cc.inc file.
static constexpr bool kPrintResults = false;
#endif
static const char* TOOL_PREFIX = "arm-linux-androideabi-";
void SetAndroidData() {
const char* data = getenv("ANDROID_DATA");
if (data == nullptr) {
setenv("ANDROID_DATA", "/tmp", 1);
}
}
int CompareIgnoringSpace(const char* s1, const char* s2) {
while (*s1 != '\0') {
while (isspace(*s1)) ++s1;
while (isspace(*s2)) ++s2;
if (*s1 == '\0' || *s1 != *s2) {
break;
}
++s1;
++s2;
}
return *s1 - *s2;
}
std::string GetAndroidToolsDir() {
std::string root;
const char* android_build_top = getenv("ANDROID_BUILD_TOP");
if (android_build_top != nullptr) {
root += android_build_top;
} else {
// Not set by build server, so default to current directory
char* cwd = getcwd(nullptr, 0);
setenv("ANDROID_BUILD_TOP", cwd, 1);
root += cwd;
free(cwd);
}
// Look for "prebuilts"
std::string toolsdir = root;
struct stat st;
while (toolsdir != "") {
std::string prebuilts = toolsdir + "/prebuilts";
if (stat(prebuilts.c_str(), &st) == 0) {
// Found prebuilts.
toolsdir += "/prebuilts/gcc/linux-x86/arm";
break;
}
// Not present, move up one dir.
size_t slash = toolsdir.rfind('/');
if (slash == std::string::npos) {
toolsdir = "";
} else {
toolsdir = toolsdir.substr(0, slash-1);
}
}
bool statok = stat(toolsdir.c_str(), &st) == 0;
if (!statok) {
return ""; // Use path.
}
DIR* dir = opendir(toolsdir.c_str());
if (dir == nullptr) {
return ""; // Use path.
}
struct dirent* entry;
std::string founddir;
double maxversion = 0;
// Find the latest version of the arm-eabi tools (biggest version number).
// Suffix on toolsdir will be something like "arm-eabi-4.8"
while ((entry = readdir(dir)) != nullptr) {
std::string subdir = toolsdir + std::string("/") + std::string(entry->d_name);
size_t eabi = subdir.find(TOOL_PREFIX);
if (eabi != std::string::npos) {
std::string suffix = subdir.substr(eabi + strlen(TOOL_PREFIX));
double version = strtod(suffix.c_str(), nullptr);
if (version > maxversion) {
maxversion = version;
founddir = subdir;
}
}
}
closedir(dir);
bool found = founddir != "";
if (!found) {
return ""; // Use path.
}
return founddir + "/bin/";
}
void dump(std::vector<uint8_t>& code, const char* testname) {
// This will only work on the host. There is no as, objcopy or objdump on the
// device.
#ifndef HAVE_ANDROID_OS
static bool results_ok = false;
static std::string toolsdir;
if (!results_ok) {
setup_results();
toolsdir = GetAndroidToolsDir();
SetAndroidData();
results_ok = true;
}
ScratchFile file;
const char* filename = file.GetFilename().c_str();
std::ofstream out(filename);
if (out) {
out << ".section \".text\"\n";
out << ".syntax unified\n";
out << ".arch armv7-a\n";
out << ".thumb\n";
out << ".thumb_func\n";
out << ".type " << testname << ", #function\n";
out << ".global " << testname << "\n";
out << testname << ":\n";
out << ".fnstart\n";
for (uint32_t i = 0 ; i < code.size(); ++i) {
out << ".byte " << (static_cast<int>(code[i]) & 0xff) << "\n";
}
out << ".fnend\n";
out << ".size " << testname << ", .-" << testname << "\n";
}
out.close();
char cmd[1024];
// Assemble the .S
snprintf(cmd, sizeof(cmd), "%s%sas %s -o %s.o", toolsdir.c_str(), TOOL_PREFIX, filename, filename);
system(cmd);
// Remove the $d symbols to prevent the disassembler dumping the instructions
// as .word
snprintf(cmd, sizeof(cmd), "%s%sobjcopy -N '$d' %s.o %s.oo", toolsdir.c_str(), TOOL_PREFIX,
filename, filename);
system(cmd);
// Disassemble.
snprintf(cmd, sizeof(cmd), "%s%sobjdump -d %s.oo | grep '^ *[0-9a-f][0-9a-f]*:'",
toolsdir.c_str(), TOOL_PREFIX, filename);
if (kPrintResults) {
// Print the results only, don't check. This is used to generate new output for inserting
// into the .inc file.
system(cmd);
} else {
// Check the results match the appropriate results in the .inc file.
FILE *fp = popen(cmd, "r");
ASSERT_TRUE(fp != nullptr);
std::map<std::string, const char**>::iterator results = test_results.find(testname);
ASSERT_NE(results, test_results.end());
uint32_t lineindex = 0;
while (!feof(fp)) {
char testline[256];
char *s = fgets(testline, sizeof(testline), fp);
if (s == nullptr) {
break;
}
if (CompareIgnoringSpace(results->second[lineindex], testline) != 0) {
LOG(FATAL) << "Output is not as expected at line: " << lineindex
<< results->second[lineindex] << "/" << testline;
}
++lineindex;
}
// Check that we are at the end.
ASSERT_TRUE(results->second[lineindex] == nullptr);
fclose(fp);
}
char buf[FILENAME_MAX];
snprintf(buf, sizeof(buf), "%s.o", filename);
unlink(buf);
snprintf(buf, sizeof(buf), "%s.oo", filename);
unlink(buf);
#endif
}
#define __ assembler->
TEST(Thumb2AssemblerTest, SimpleMov) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ mov(R0, ShifterOperand(R1));
__ mov(R8, ShifterOperand(R9));
__ mov(R0, ShifterOperand(1));
__ mov(R8, ShifterOperand(9));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "SimpleMov");
delete assembler;
}
TEST(Thumb2AssemblerTest, SimpleMov32) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
assembler->Force32Bit();
__ mov(R0, ShifterOperand(R1));
__ mov(R8, ShifterOperand(R9));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "SimpleMov32");
delete assembler;
}
TEST(Thumb2AssemblerTest, SimpleMovAdd) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ mov(R0, ShifterOperand(R1));
__ add(R0, R1, ShifterOperand(R2));
__ add(R0, R1, ShifterOperand());
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "SimpleMovAdd");
delete assembler;
}
TEST(Thumb2AssemblerTest, DataProcessingRegister) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ mov(R0, ShifterOperand(R1));
__ mvn(R0, ShifterOperand(R1));
// 32 bit variants.
__ add(R0, R1, ShifterOperand(R2));
__ sub(R0, R1, ShifterOperand(R2));
__ and_(R0, R1, ShifterOperand(R2));
__ orr(R0, R1, ShifterOperand(R2));
__ eor(R0, R1, ShifterOperand(R2));
__ bic(R0, R1, ShifterOperand(R2));
__ adc(R0, R1, ShifterOperand(R2));
__ sbc(R0, R1, ShifterOperand(R2));
__ rsb(R0, R1, ShifterOperand(R2));
// 16 bit variants.
__ add(R0, R1, ShifterOperand());
__ sub(R0, R1, ShifterOperand());
__ and_(R0, R1, ShifterOperand());
__ orr(R0, R1, ShifterOperand());
__ eor(R0, R1, ShifterOperand());
__ bic(R0, R1, ShifterOperand());
__ adc(R0, R1, ShifterOperand());
__ sbc(R0, R1, ShifterOperand());
__ rsb(R0, R1, ShifterOperand());
__ tst(R0, ShifterOperand(R1));
__ teq(R0, ShifterOperand(R1));
__ cmp(R0, ShifterOperand(R1));
__ cmn(R0, ShifterOperand(R1));
__ movs(R0, ShifterOperand(R1));
__ mvns(R0, ShifterOperand(R1));
// 32 bit variants.
__ add(R12, R1, ShifterOperand(R0));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "DataProcessingRegister");
delete assembler;
}
TEST(Thumb2AssemblerTest, DataProcessingImmediate) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ mov(R0, ShifterOperand(0x55));
__ mvn(R0, ShifterOperand(0x55));
__ add(R0, R1, ShifterOperand(0x55));
__ sub(R0, R1, ShifterOperand(0x55));
__ and_(R0, R1, ShifterOperand(0x55));
__ orr(R0, R1, ShifterOperand(0x55));
__ eor(R0, R1, ShifterOperand(0x55));
__ bic(R0, R1, ShifterOperand(0x55));
__ adc(R0, R1, ShifterOperand(0x55));
__ sbc(R0, R1, ShifterOperand(0x55));
__ rsb(R0, R1, ShifterOperand(0x55));
__ tst(R0, ShifterOperand(0x55));
__ teq(R0, ShifterOperand(0x55));
__ cmp(R0, ShifterOperand(0x55));
__ cmn(R0, ShifterOperand(0x55));
__ add(R0, R1, ShifterOperand(5));
__ sub(R0, R1, ShifterOperand(5));
__ movs(R0, ShifterOperand(0x55));
__ mvns(R0, ShifterOperand(0x55));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "DataProcessingImmediate");
delete assembler;
}
TEST(Thumb2AssemblerTest, DataProcessingModifiedImmediate) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ mov(R0, ShifterOperand(0x550055));
__ mvn(R0, ShifterOperand(0x550055));
__ add(R0, R1, ShifterOperand(0x550055));
__ sub(R0, R1, ShifterOperand(0x550055));
__ and_(R0, R1, ShifterOperand(0x550055));
__ orr(R0, R1, ShifterOperand(0x550055));
__ eor(R0, R1, ShifterOperand(0x550055));
__ bic(R0, R1, ShifterOperand(0x550055));
__ adc(R0, R1, ShifterOperand(0x550055));
__ sbc(R0, R1, ShifterOperand(0x550055));
__ rsb(R0, R1, ShifterOperand(0x550055));
__ tst(R0, ShifterOperand(0x550055));
__ teq(R0, ShifterOperand(0x550055));
__ cmp(R0, ShifterOperand(0x550055));
__ cmn(R0, ShifterOperand(0x550055));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "DataProcessingModifiedImmediate");
delete assembler;
}
TEST(Thumb2AssemblerTest, DataProcessingModifiedImmediates) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ mov(R0, ShifterOperand(0x550055));
__ mov(R0, ShifterOperand(0x55005500));
__ mov(R0, ShifterOperand(0x55555555));
__ mov(R0, ShifterOperand(0xd5000000)); // rotated to first position
__ mov(R0, ShifterOperand(0x6a000000)); // rotated to second position
__ mov(R0, ShifterOperand(0x350)); // rotated to 2nd last position
__ mov(R0, ShifterOperand(0x1a8)); // rotated to last position
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "DataProcessingModifiedImmediates");
delete assembler;
}
TEST(Thumb2AssemblerTest, DataProcessingShiftedRegister) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ mov(R3, ShifterOperand(R4, LSL, 4));
__ mov(R3, ShifterOperand(R4, LSR, 5));
__ mov(R3, ShifterOperand(R4, ASR, 6));
__ mov(R3, ShifterOperand(R4, ROR, 7));
__ mov(R3, ShifterOperand(R4, ROR));
// 32 bit variants.
__ mov(R8, ShifterOperand(R4, LSL, 4));
__ mov(R8, ShifterOperand(R4, LSR, 5));
__ mov(R8, ShifterOperand(R4, ASR, 6));
__ mov(R8, ShifterOperand(R4, ROR, 7));
__ mov(R8, ShifterOperand(R4, RRX));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "DataProcessingShiftedRegister");
delete assembler;
}
TEST(Thumb2AssemblerTest, BasicLoad) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ ldr(R3, Address(R4, 24));
__ ldrb(R3, Address(R4, 24));
__ ldrh(R3, Address(R4, 24));
__ ldrsb(R3, Address(R4, 24));
__ ldrsh(R3, Address(R4, 24));
__ ldr(R3, Address(SP, 24));
// 32 bit variants
__ ldr(R8, Address(R4, 24));
__ ldrb(R8, Address(R4, 24));
__ ldrh(R8, Address(R4, 24));
__ ldrsb(R8, Address(R4, 24));
__ ldrsh(R8, Address(R4, 24));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "BasicLoad");
delete assembler;
}
TEST(Thumb2AssemblerTest, BasicStore) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ str(R3, Address(R4, 24));
__ strb(R3, Address(R4, 24));
__ strh(R3, Address(R4, 24));
__ str(R3, Address(SP, 24));
// 32 bit variants.
__ str(R8, Address(R4, 24));
__ strb(R8, Address(R4, 24));
__ strh(R8, Address(R4, 24));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "BasicStore");
delete assembler;
}
TEST(Thumb2AssemblerTest, ComplexLoad) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ ldr(R3, Address(R4, 24, Address::Mode::Offset));
__ ldr(R3, Address(R4, 24, Address::Mode::PreIndex));
__ ldr(R3, Address(R4, 24, Address::Mode::PostIndex));
__ ldr(R3, Address(R4, 24, Address::Mode::NegOffset));
__ ldr(R3, Address(R4, 24, Address::Mode::NegPreIndex));
__ ldr(R3, Address(R4, 24, Address::Mode::NegPostIndex));
__ ldrb(R3, Address(R4, 24, Address::Mode::Offset));
__ ldrb(R3, Address(R4, 24, Address::Mode::PreIndex));
__ ldrb(R3, Address(R4, 24, Address::Mode::PostIndex));
__ ldrb(R3, Address(R4, 24, Address::Mode::NegOffset));
__ ldrb(R3, Address(R4, 24, Address::Mode::NegPreIndex));
__ ldrb(R3, Address(R4, 24, Address::Mode::NegPostIndex));
__ ldrh(R3, Address(R4, 24, Address::Mode::Offset));
__ ldrh(R3, Address(R4, 24, Address::Mode::PreIndex));
__ ldrh(R3, Address(R4, 24, Address::Mode::PostIndex));
__ ldrh(R3, Address(R4, 24, Address::Mode::NegOffset));
__ ldrh(R3, Address(R4, 24, Address::Mode::NegPreIndex));
__ ldrh(R3, Address(R4, 24, Address::Mode::NegPostIndex));
__ ldrsb(R3, Address(R4, 24, Address::Mode::Offset));
__ ldrsb(R3, Address(R4, 24, Address::Mode::PreIndex));
__ ldrsb(R3, Address(R4, 24, Address::Mode::PostIndex));
__ ldrsb(R3, Address(R4, 24, Address::Mode::NegOffset));
__ ldrsb(R3, Address(R4, 24, Address::Mode::NegPreIndex));
__ ldrsb(R3, Address(R4, 24, Address::Mode::NegPostIndex));
__ ldrsh(R3, Address(R4, 24, Address::Mode::Offset));
__ ldrsh(R3, Address(R4, 24, Address::Mode::PreIndex));
__ ldrsh(R3, Address(R4, 24, Address::Mode::PostIndex));
__ ldrsh(R3, Address(R4, 24, Address::Mode::NegOffset));
__ ldrsh(R3, Address(R4, 24, Address::Mode::NegPreIndex));
__ ldrsh(R3, Address(R4, 24, Address::Mode::NegPostIndex));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "ComplexLoad");
delete assembler;
}
TEST(Thumb2AssemblerTest, ComplexStore) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ str(R3, Address(R4, 24, Address::Mode::Offset));
__ str(R3, Address(R4, 24, Address::Mode::PreIndex));
__ str(R3, Address(R4, 24, Address::Mode::PostIndex));
__ str(R3, Address(R4, 24, Address::Mode::NegOffset));
__ str(R3, Address(R4, 24, Address::Mode::NegPreIndex));
__ str(R3, Address(R4, 24, Address::Mode::NegPostIndex));
__ strb(R3, Address(R4, 24, Address::Mode::Offset));
__ strb(R3, Address(R4, 24, Address::Mode::PreIndex));
__ strb(R3, Address(R4, 24, Address::Mode::PostIndex));
__ strb(R3, Address(R4, 24, Address::Mode::NegOffset));
__ strb(R3, Address(R4, 24, Address::Mode::NegPreIndex));
__ strb(R3, Address(R4, 24, Address::Mode::NegPostIndex));
__ strh(R3, Address(R4, 24, Address::Mode::Offset));
__ strh(R3, Address(R4, 24, Address::Mode::PreIndex));
__ strh(R3, Address(R4, 24, Address::Mode::PostIndex));
__ strh(R3, Address(R4, 24, Address::Mode::NegOffset));
__ strh(R3, Address(R4, 24, Address::Mode::NegPreIndex));
__ strh(R3, Address(R4, 24, Address::Mode::NegPostIndex));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "ComplexStore");
delete assembler;
}
TEST(Thumb2AssemblerTest, NegativeLoadStore) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ ldr(R3, Address(R4, -24, Address::Mode::Offset));
__ ldr(R3, Address(R4, -24, Address::Mode::PreIndex));
__ ldr(R3, Address(R4, -24, Address::Mode::PostIndex));
__ ldr(R3, Address(R4, -24, Address::Mode::NegOffset));
__ ldr(R3, Address(R4, -24, Address::Mode::NegPreIndex));
__ ldr(R3, Address(R4, -24, Address::Mode::NegPostIndex));
__ ldrb(R3, Address(R4, -24, Address::Mode::Offset));
__ ldrb(R3, Address(R4, -24, Address::Mode::PreIndex));
__ ldrb(R3, Address(R4, -24, Address::Mode::PostIndex));
__ ldrb(R3, Address(R4, -24, Address::Mode::NegOffset));
__ ldrb(R3, Address(R4, -24, Address::Mode::NegPreIndex));
__ ldrb(R3, Address(R4, -24, Address::Mode::NegPostIndex));
__ ldrh(R3, Address(R4, -24, Address::Mode::Offset));
__ ldrh(R3, Address(R4, -24, Address::Mode::PreIndex));
__ ldrh(R3, Address(R4, -24, Address::Mode::PostIndex));
__ ldrh(R3, Address(R4, -24, Address::Mode::NegOffset));
__ ldrh(R3, Address(R4, -24, Address::Mode::NegPreIndex));
__ ldrh(R3, Address(R4, -24, Address::Mode::NegPostIndex));
__ ldrsb(R3, Address(R4, -24, Address::Mode::Offset));
__ ldrsb(R3, Address(R4, -24, Address::Mode::PreIndex));
__ ldrsb(R3, Address(R4, -24, Address::Mode::PostIndex));
__ ldrsb(R3, Address(R4, -24, Address::Mode::NegOffset));
__ ldrsb(R3, Address(R4, -24, Address::Mode::NegPreIndex));
__ ldrsb(R3, Address(R4, -24, Address::Mode::NegPostIndex));
__ ldrsh(R3, Address(R4, -24, Address::Mode::Offset));
__ ldrsh(R3, Address(R4, -24, Address::Mode::PreIndex));
__ ldrsh(R3, Address(R4, -24, Address::Mode::PostIndex));
__ ldrsh(R3, Address(R4, -24, Address::Mode::NegOffset));
__ ldrsh(R3, Address(R4, -24, Address::Mode::NegPreIndex));
__ ldrsh(R3, Address(R4, -24, Address::Mode::NegPostIndex));
__ str(R3, Address(R4, -24, Address::Mode::Offset));
__ str(R3, Address(R4, -24, Address::Mode::PreIndex));
__ str(R3, Address(R4, -24, Address::Mode::PostIndex));
__ str(R3, Address(R4, -24, Address::Mode::NegOffset));
__ str(R3, Address(R4, -24, Address::Mode::NegPreIndex));
__ str(R3, Address(R4, -24, Address::Mode::NegPostIndex));
__ strb(R3, Address(R4, -24, Address::Mode::Offset));
__ strb(R3, Address(R4, -24, Address::Mode::PreIndex));
__ strb(R3, Address(R4, -24, Address::Mode::PostIndex));
__ strb(R3, Address(R4, -24, Address::Mode::NegOffset));
__ strb(R3, Address(R4, -24, Address::Mode::NegPreIndex));
__ strb(R3, Address(R4, -24, Address::Mode::NegPostIndex));
__ strh(R3, Address(R4, -24, Address::Mode::Offset));
__ strh(R3, Address(R4, -24, Address::Mode::PreIndex));
__ strh(R3, Address(R4, -24, Address::Mode::PostIndex));
__ strh(R3, Address(R4, -24, Address::Mode::NegOffset));
__ strh(R3, Address(R4, -24, Address::Mode::NegPreIndex));
__ strh(R3, Address(R4, -24, Address::Mode::NegPostIndex));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "NegativeLoadStore");
delete assembler;
}
TEST(Thumb2AssemblerTest, SimpleLoadStoreDual) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ strd(R2, Address(R0, 24, Address::Mode::Offset));
__ ldrd(R2, Address(R0, 24, Address::Mode::Offset));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "SimpleLoadStoreDual");
delete assembler;
}
TEST(Thumb2AssemblerTest, ComplexLoadStoreDual) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ strd(R2, Address(R0, 24, Address::Mode::Offset));
__ strd(R2, Address(R0, 24, Address::Mode::PreIndex));
__ strd(R2, Address(R0, 24, Address::Mode::PostIndex));
__ strd(R2, Address(R0, 24, Address::Mode::NegOffset));
__ strd(R2, Address(R0, 24, Address::Mode::NegPreIndex));
__ strd(R2, Address(R0, 24, Address::Mode::NegPostIndex));
__ ldrd(R2, Address(R0, 24, Address::Mode::Offset));
__ ldrd(R2, Address(R0, 24, Address::Mode::PreIndex));
__ ldrd(R2, Address(R0, 24, Address::Mode::PostIndex));
__ ldrd(R2, Address(R0, 24, Address::Mode::NegOffset));
__ ldrd(R2, Address(R0, 24, Address::Mode::NegPreIndex));
__ ldrd(R2, Address(R0, 24, Address::Mode::NegPostIndex));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "ComplexLoadStoreDual");
delete assembler;
}
TEST(Thumb2AssemblerTest, NegativeLoadStoreDual) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ strd(R2, Address(R0, -24, Address::Mode::Offset));
__ strd(R2, Address(R0, -24, Address::Mode::PreIndex));
__ strd(R2, Address(R0, -24, Address::Mode::PostIndex));
__ strd(R2, Address(R0, -24, Address::Mode::NegOffset));
__ strd(R2, Address(R0, -24, Address::Mode::NegPreIndex));
__ strd(R2, Address(R0, -24, Address::Mode::NegPostIndex));
__ ldrd(R2, Address(R0, -24, Address::Mode::Offset));
__ ldrd(R2, Address(R0, -24, Address::Mode::PreIndex));
__ ldrd(R2, Address(R0, -24, Address::Mode::PostIndex));
__ ldrd(R2, Address(R0, -24, Address::Mode::NegOffset));
__ ldrd(R2, Address(R0, -24, Address::Mode::NegPreIndex));
__ ldrd(R2, Address(R0, -24, Address::Mode::NegPostIndex));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "NegativeLoadStoreDual");
delete assembler;
}
TEST(Thumb2AssemblerTest, SimpleBranch) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
Label l1;
__ mov(R0, ShifterOperand(2));
__ Bind(&l1);
__ mov(R1, ShifterOperand(1));
__ b(&l1);
Label l2;
__ b(&l2);
__ mov(R1, ShifterOperand(2));
__ Bind(&l2);
__ mov(R0, ShifterOperand(3));
Label l3;
__ mov(R0, ShifterOperand(2));
__ Bind(&l3);
__ mov(R1, ShifterOperand(1));
__ b(&l3, EQ);
Label l4;
__ b(&l4, EQ);
__ mov(R1, ShifterOperand(2));
__ Bind(&l4);
__ mov(R0, ShifterOperand(3));
// 2 linked labels.
Label l5;
__ b(&l5);
__ mov(R1, ShifterOperand(4));
__ b(&l5);
__ mov(R1, ShifterOperand(5));
__ Bind(&l5);
__ mov(R0, ShifterOperand(6));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "SimpleBranch");
delete assembler;
}
TEST(Thumb2AssemblerTest, LongBranch) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
assembler->Force32Bit();
// 32 bit branches.
Label l1;
__ mov(R0, ShifterOperand(2));
__ Bind(&l1);
__ mov(R1, ShifterOperand(1));
__ b(&l1);
Label l2;
__ b(&l2);
__ mov(R1, ShifterOperand(2));
__ Bind(&l2);
__ mov(R0, ShifterOperand(3));
Label l3;
__ mov(R0, ShifterOperand(2));
__ Bind(&l3);
__ mov(R1, ShifterOperand(1));
__ b(&l3, EQ);
Label l4;
__ b(&l4, EQ);
__ mov(R1, ShifterOperand(2));
__ Bind(&l4);
__ mov(R0, ShifterOperand(3));
// 2 linked labels.
Label l5;
__ b(&l5);
__ mov(R1, ShifterOperand(4));
__ b(&l5);
__ mov(R1, ShifterOperand(5));
__ Bind(&l5);
__ mov(R0, ShifterOperand(6));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "LongBranch");
delete assembler;
}
TEST(Thumb2AssemblerTest, LoadMultiple) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
// 16 bit.
__ ldm(DB_W, R4, (1 << R0 | 1 << R3));
// 32 bit.
__ ldm(DB_W, R4, (1 << LR | 1 << R11));
__ ldm(DB, R4, (1 << LR | 1 << R11));
// Single reg is converted to ldr
__ ldm(DB_W, R4, (1 << R5));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "LoadMultiple");
delete assembler;
}
TEST(Thumb2AssemblerTest, StoreMultiple) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
// 16 bit.
__ stm(IA_W, R4, (1 << R0 | 1 << R3));
// 32 bit.
__ stm(IA_W, R4, (1 << LR | 1 << R11));
__ stm(IA, R4, (1 << LR | 1 << R11));
// Single reg is converted to str
__ stm(IA_W, R4, (1 << R5));
__ stm(IA, R4, (1 << R5));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "StoreMultiple");
delete assembler;
}
TEST(Thumb2AssemblerTest, MovWMovT) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ movw(R4, 0); // 16 bit.
__ movw(R4, 0x34); // 16 bit.
__ movw(R9, 0x34); // 32 bit due to high register.
__ movw(R3, 0x1234); // 32 bit due to large value.
__ movw(R9, 0xffff); // 32 bit due to large value and high register.
// Always 32 bit.
__ movt(R0, 0);
__ movt(R0, 0x1234);
__ movt(R1, 0xffff);
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "MovWMovT");
delete assembler;
}
TEST(Thumb2AssemblerTest, SpecialAddSub) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ add(R2, SP, ShifterOperand(0x50)); // 16 bit.
__ add(SP, SP, ShifterOperand(0x50)); // 16 bit.
__ add(R8, SP, ShifterOperand(0x50)); // 32 bit.
__ add(R2, SP, ShifterOperand(0xf00)); // 32 bit due to imm size.
__ add(SP, SP, ShifterOperand(0xf00)); // 32 bit due to imm size.
__ sub(SP, SP, ShifterOperand(0x50)); // 16 bit
__ sub(R0, SP, ShifterOperand(0x50)); // 32 bit
__ sub(R8, SP, ShifterOperand(0x50)); // 32 bit.
__ sub(SP, SP, ShifterOperand(0xf00)); // 32 bit due to imm size
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "SpecialAddSub");
delete assembler;
}
TEST(Thumb2AssemblerTest, StoreToOffset) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ StoreToOffset(kStoreWord, R2, R4, 12); // Simple
__ StoreToOffset(kStoreWord, R2, R4, 0x2000); // Offset too big.
__ StoreToOffset(kStoreWord, R0, R12, 12);
__ StoreToOffset(kStoreHalfword, R0, R12, 12);
__ StoreToOffset(kStoreByte, R2, R12, 12);
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "StoreToOffset");
delete assembler;
}
TEST(Thumb2AssemblerTest, IfThen) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ it(EQ);
__ mov(R1, ShifterOperand(1), EQ);
__ it(EQ, kItThen);
__ mov(R1, ShifterOperand(1), EQ);
__ mov(R2, ShifterOperand(2), EQ);
__ it(EQ, kItElse);
__ mov(R1, ShifterOperand(1), EQ);
__ mov(R2, ShifterOperand(2), NE);
__ it(EQ, kItThen, kItElse);
__ mov(R1, ShifterOperand(1), EQ);
__ mov(R2, ShifterOperand(2), EQ);
__ mov(R3, ShifterOperand(3), NE);
__ it(EQ, kItElse, kItElse);
__ mov(R1, ShifterOperand(1), EQ);
__ mov(R2, ShifterOperand(2), NE);
__ mov(R3, ShifterOperand(3), NE);
__ it(EQ, kItThen, kItThen, kItElse);
__ mov(R1, ShifterOperand(1), EQ);
__ mov(R2, ShifterOperand(2), EQ);
__ mov(R3, ShifterOperand(3), EQ);
__ mov(R4, ShifterOperand(4), NE);
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "IfThen");
delete assembler;
}
TEST(Thumb2AssemblerTest, CbzCbnz) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
Label l1;
__ cbz(R2, &l1);
__ mov(R1, ShifterOperand(3));
__ mov(R2, ShifterOperand(3));
__ Bind(&l1);
__ mov(R2, ShifterOperand(4));
Label l2;
__ cbnz(R2, &l2);
__ mov(R8, ShifterOperand(3));
__ mov(R2, ShifterOperand(3));
__ Bind(&l2);
__ mov(R2, ShifterOperand(4));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "CbzCbnz");
delete assembler;
}
TEST(Thumb2AssemblerTest, Multiply) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ mul(R0, R1, R0);
__ mul(R0, R1, R2);
__ mul(R8, R9, R8);
__ mul(R8, R9, R10);
__ mla(R0, R1, R2, R3);
__ mla(R8, R9, R8, R9);
__ mls(R0, R1, R2, R3);
__ mls(R8, R9, R8, R9);
__ umull(R0, R1, R2, R3);
__ umull(R8, R9, R10, R11);
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "Multiply");
delete assembler;
}
TEST(Thumb2AssemblerTest, Divide) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ sdiv(R0, R1, R2);
__ sdiv(R8, R9, R10);
__ udiv(R0, R1, R2);
__ udiv(R8, R9, R10);
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "Divide");
delete assembler;
}
TEST(Thumb2AssemblerTest, VMov) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ vmovs(S1, 1.0);
__ vmovd(D1, 1.0);
__ vmovs(S1, S2);
__ vmovd(D1, D2);
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "VMov");
delete assembler;
}
TEST(Thumb2AssemblerTest, BasicFloatingPoint) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ vadds(S0, S1, S2);
__ vsubs(S0, S1, S2);
__ vmuls(S0, S1, S2);
__ vmlas(S0, S1, S2);
__ vmlss(S0, S1, S2);
__ vdivs(S0, S1, S2);
__ vabss(S0, S1);
__ vnegs(S0, S1);
__ vsqrts(S0, S1);
__ vaddd(D0, D1, D2);
__ vsubd(D0, D1, D2);
__ vmuld(D0, D1, D2);
__ vmlad(D0, D1, D2);
__ vmlsd(D0, D1, D2);
__ vdivd(D0, D1, D2);
__ vabsd(D0, D1);
__ vnegd(D0, D1);
__ vsqrtd(D0, D1);
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "BasicFloatingPoint");
delete assembler;
}
TEST(Thumb2AssemblerTest, FloatingPointConversions) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ vcvtsd(S2, D2);
__ vcvtds(D2, S2);
__ vcvtis(S1, S2);
__ vcvtsi(S1, S2);
__ vcvtid(S1, D2);
__ vcvtdi(D1, S2);
__ vcvtus(S1, S2);
__ vcvtsu(S1, S2);
__ vcvtud(S1, D2);
__ vcvtdu(D1, S2);
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "FloatingPointConversions");
delete assembler;
}
TEST(Thumb2AssemblerTest, FloatingPointComparisons) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ vcmps(S0, S1);
__ vcmpd(D0, D1);
__ vcmpsz(S2);
__ vcmpdz(D2);
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "FloatingPointComparisons");
delete assembler;
}
TEST(Thumb2AssemblerTest, Calls) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ blx(LR);
__ bx(LR);
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "Calls");
delete assembler;
}
TEST(Thumb2AssemblerTest, Breakpoint) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ bkpt(0);
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "Breakpoint");
delete assembler;
}
TEST(Thumb2AssemblerTest, StrR1) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ str(R1, Address(SP, 68));
__ str(R1, Address(SP, 1068));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "StrR1");
delete assembler;
}
TEST(Thumb2AssemblerTest, VPushPop) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ vpushs(S2, 4);
__ vpushd(D2, 4);
__ vpops(S2, 4);
__ vpopd(D2, 4);
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "VPushPop");
delete assembler;
}
TEST(Thumb2AssemblerTest, Max16BitBranch) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
Label l1;
__ b(&l1);
for (int i = 0 ; i < (1 << 11) ; i += 2) {
__ mov(R3, ShifterOperand(i & 0xff));
}
__ Bind(&l1);
__ mov(R1, ShifterOperand(R2));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "Max16BitBranch");
delete assembler;
}
TEST(Thumb2AssemblerTest, Branch32) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
Label l1;
__ b(&l1);
for (int i = 0 ; i < (1 << 11) + 2 ; i += 2) {
__ mov(R3, ShifterOperand(i & 0xff));
}
__ Bind(&l1);
__ mov(R1, ShifterOperand(R2));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "Branch32");
delete assembler;
}
TEST(Thumb2AssemblerTest, CompareAndBranchMax) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
Label l1;
__ cbz(R4, &l1);
for (int i = 0 ; i < (1 << 7) ; i += 2) {
__ mov(R3, ShifterOperand(i & 0xff));
}
__ Bind(&l1);
__ mov(R1, ShifterOperand(R2));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "CompareAndBranchMax");
delete assembler;
}
TEST(Thumb2AssemblerTest, CompareAndBranchRelocation16) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
Label l1;
__ cbz(R4, &l1);
for (int i = 0 ; i < (1 << 7) + 2 ; i += 2) {
__ mov(R3, ShifterOperand(i & 0xff));
}
__ Bind(&l1);
__ mov(R1, ShifterOperand(R2));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "CompareAndBranchRelocation16");
delete assembler;
}
TEST(Thumb2AssemblerTest, CompareAndBranchRelocation32) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
Label l1;
__ cbz(R4, &l1);
for (int i = 0 ; i < (1 << 11) + 2 ; i += 2) {
__ mov(R3, ShifterOperand(i & 0xff));
}
__ Bind(&l1);
__ mov(R1, ShifterOperand(R2));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "CompareAndBranchRelocation32");
delete assembler;
}
TEST(Thumb2AssemblerTest, MixedBranch32) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
Label l1;
Label l2;
__ b(&l1); // Forwards.
__ Bind(&l2);
// Space to force relocation.
for (int i = 0 ; i < (1 << 11) + 2 ; i += 2) {
__ mov(R3, ShifterOperand(i & 0xff));
}
__ b(&l2); // Backwards.
__ Bind(&l1);
__ mov(R1, ShifterOperand(R2));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "MixedBranch32");
delete assembler;
}
TEST(Thumb2AssemblerTest, Shifts) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
// 16 bit
__ Lsl(R0, R1, 5);
__ Lsr(R0, R1, 5);
__ Asr(R0, R1, 5);
__ Lsl(R0, R0, R1);
__ Lsr(R0, R0, R1);
__ Asr(R0, R0, R1);
// 32 bit due to high registers.
__ Lsl(R8, R1, 5);
__ Lsr(R0, R8, 5);
__ Asr(R8, R1, 5);
__ Ror(R0, R8, 5);
// 32 bit due to different Rd and Rn.
__ Lsl(R0, R1, R2);
__ Lsr(R0, R1, R2);
__ Asr(R0, R1, R2);
__ Ror(R0, R1, R2);
// 32 bit due to use of high registers.
__ Lsl(R8, R1, R2);
__ Lsr(R0, R8, R2);
__ Asr(R0, R1, R8);
// S bit (all 32 bit)
// 32 bit due to high registers.
__ Lsl(R8, R1, 5, true);
__ Lsr(R0, R8, 5, true);
__ Asr(R8, R1, 5, true);
__ Ror(R0, R8, 5, true);
// 32 bit due to different Rd and Rn.
__ Lsl(R0, R1, R2, true);
__ Lsr(R0, R1, R2, true);
__ Asr(R0, R1, R2, true);
__ Ror(R0, R1, R2, true);
// 32 bit due to use of high registers.
__ Lsl(R8, R1, R2, true);
__ Lsr(R0, R8, R2, true);
__ Asr(R0, R1, R8, true);
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "Shifts");
delete assembler;
}
TEST(Thumb2AssemblerTest, LoadStoreRegOffset) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
// 16 bit.
__ ldr(R0, Address(R1, R2));
__ str(R0, Address(R1, R2));
// 32 bit due to shift.
__ ldr(R0, Address(R1, R2, LSL, 1));
__ str(R0, Address(R1, R2, LSL, 1));
__ ldr(R0, Address(R1, R2, LSL, 3));
__ str(R0, Address(R1, R2, LSL, 3));
// 32 bit due to high register use.
__ ldr(R8, Address(R1, R2));
__ str(R8, Address(R1, R2));
__ ldr(R1, Address(R8, R2));
__ str(R2, Address(R8, R2));
__ ldr(R0, Address(R1, R8));
__ str(R0, Address(R1, R8));
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "LoadStoreRegOffset");
delete assembler;
}
TEST(Thumb2AssemblerTest, LoadStoreLiteral) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ ldr(R0, Address(4));
__ str(R0, Address(4));
__ ldr(R0, Address(-8));
__ str(R0, Address(-8));
// Limits.
__ ldr(R0, Address(0x3ff)); // 10 bits (16 bit).
__ ldr(R0, Address(0x7ff)); // 11 bits (32 bit).
__ str(R0, Address(0x3ff)); // 32 bit (no 16 bit str(literal)).
__ str(R0, Address(0x7ff)); // 11 bits (32 bit).
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "LoadStoreLiteral");
delete assembler;
}
TEST(Thumb2AssemblerTest, LoadStoreLimits) {
arm::Thumb2Assembler* assembler = static_cast<arm::Thumb2Assembler*>(Assembler::Create(kThumb2));
__ ldr(R0, Address(R4, 124)); // 16 bit.
__ ldr(R0, Address(R4, 128)); // 32 bit.
__ ldrb(R0, Address(R4, 31)); // 16 bit.
__ ldrb(R0, Address(R4, 32)); // 32 bit.
__ ldrh(R0, Address(R4, 62)); // 16 bit.
__ ldrh(R0, Address(R4, 64)); // 32 bit.
__ ldrsb(R0, Address(R4, 31)); // 32 bit.
__ ldrsb(R0, Address(R4, 32)); // 32 bit.
__ ldrsh(R0, Address(R4, 62)); // 32 bit.
__ ldrsh(R0, Address(R4, 64)); // 32 bit.
__ str(R0, Address(R4, 124)); // 16 bit.
__ str(R0, Address(R4, 128)); // 32 bit.
__ strb(R0, Address(R4, 31)); // 16 bit.
__ strb(R0, Address(R4, 32)); // 32 bit.
__ strh(R0, Address(R4, 62)); // 16 bit.
__ strh(R0, Address(R4, 64)); // 32 bit.
size_t cs = __ CodeSize();
std::vector<uint8_t> managed_code(cs);
MemoryRegion code(&managed_code[0], managed_code.size());
__ FinalizeInstructions(code);
dump(managed_code, "LoadStoreLimits");
delete assembler;
}
#undef __
} // namespace arm
} // namespace art