alloy.py

#!/usr/bin/python
#
#  Copyright (c) 2013, Intel Corporation
#  All rights reserved.
# 
#  Redistribution and use in source and binary forms, with or without
#  modification, are permitted provided that the following conditions are
#  met:
# 
#    * Redistributions of source code must retain the above copyright
#      notice, this list of conditions and the following disclaimer.
# 
#    * Redistributions in binary form must reproduce the above copyright
#      notice, this list of conditions and the following disclaimer in the
#      documentation and/or other materials provided with the distribution.
# 
#    * Neither the name of Intel Corporation nor the names of its
#      contributors may be used to endorse or promote products derived from
#      this software without specific prior written permission.
# 
# 
#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
#   IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
#   TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
#   PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
#   OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
#   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
#   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
#   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
#   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
#   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# // Author: Filippov Ilia

def attach_mail_file(msg, filename, name):
    if os.path.exists(filename):
        fp = open(filename, "rb")
        to_attach = MIMEBase("application", "octet-stream")
        to_attach.set_payload(fp.read())
        encode_base64(to_attach)
        to_attach.add_header("Content-Disposition", "attachment", filename=name)
        fp.close()
        msg.attach(to_attach)

def setting_paths(llvm, ispc, sde):
    if llvm != "":
        os.environ["LLVM_HOME"]=llvm
    if ispc != "":
        os.environ["ISPC_HOME"]=ispc
    if sde != "":
        os.environ["SDE_HOME"]=sde

def check_LLVM(which_LLVM):
    answer = []
    if which_LLVM[0] == " ":
        return answer
    p = os.environ["LLVM_HOME"]
    for i in range(0,len(which_LLVM)):
        if not os.path.exists(p + os.sep + "bin-" + which_LLVM[i] + os.sep + "bin"):
            answer.append(which_LLVM[i])
    return answer

def try_do_LLVM(text, command, from_validation):
    if from_validation == True:
        text = text + "\n"
    print_debug("Trying to " + text, from_validation, alloy_build)
    postfix = ""
    if current_OS == "Windows":
        postfix = " 1>> " + alloy_build + " 2>&1"
    else:
        postfix = " >> " + alloy_build + " 2>> " + alloy_build
    if os.system(command + postfix) != 0:
        print_debug("ERROR.\n", from_validation, alloy_build)
        error("can't " + text, 1)
    print_debug("DONE.\n", from_validation, alloy_build)

def build_LLVM(version_LLVM, revision, folder, tarball, debug, selfbuild, extra, from_validation, force, make):
    print_debug("Building LLVM. Version: " + version_LLVM + ". ", from_validation, alloy_build)
    if revision != "":
        print_debug("Revision: " + revision + ".\n", from_validation, alloy_build)
    else:
        print_debug("\n", from_validation, alloy_build)
    # Here we understand what and where do we want to build
    current_path = os.getcwd()
    llvm_home = os.environ["LLVM_HOME"]
    os.chdir(llvm_home)
    FOLDER_NAME=version_LLVM
    if  version_LLVM == "trunk":
        SVN_PATH="trunk"
    if  version_LLVM == "3.4":
        SVN_PATH="tags/RELEASE_34/final"
        version_LLVM = "3_4"
    if  version_LLVM == "3.3":
        SVN_PATH="tags/RELEASE_33/final"
        version_LLVM = "3_3"
    if  version_LLVM == "3.2":
        SVN_PATH="tags/RELEASE_32/final"
        version_LLVM = "3_2"
    if  version_LLVM == "3.1":
        SVN_PATH="tags/RELEASE_31/final"
        version_LLVM = "3_1"
    if revision != "":
        FOLDER_NAME = FOLDER_NAME + "_" + revision
        revision = "-" + revision
    if folder == "":
        folder = FOLDER_NAME
    if debug == True:
        folder = folder + "dbg"
    LLVM_SRC="llvm-" + folder
    LLVM_BUILD="build-" + folder
    LLVM_BIN="bin-" + folder
    if os.path.exists(LLVM_BIN + os.sep + "bin") and not force:
        error("you have folder " + LLVM_BIN + ".\nIf you want to rebuild use --force", 1)
    LLVM_BUILD_selfbuild = LLVM_BUILD + "_temp"
    LLVM_BIN_selfbuild = LLVM_BIN + "_temp"
    common.remove_if_exists(LLVM_SRC)
    common.remove_if_exists(LLVM_BUILD)
    common.remove_if_exists(LLVM_BIN)
    if selfbuild:
        common.remove_if_exists(LLVM_BUILD_selfbuild)
        common.remove_if_exists(LLVM_BIN_selfbuild)
    print_debug("Using folders: " + LLVM_SRC + " " + LLVM_BUILD + " " + LLVM_BIN + " in " + 
        llvm_home + "\n", from_validation, alloy_build)
    # load llvm
    if tarball == "":
        try_do_LLVM("load LLVM from http://llvm.org/svn/llvm-project/llvm/" + SVN_PATH + " ",
                    "svn co " + revision + " http://llvm.org/svn/llvm-project/llvm/" + SVN_PATH + " " + LLVM_SRC,
                    from_validation)
        os.chdir(LLVM_SRC + "/tools")
        try_do_LLVM("load clang from http://llvm.org/svn/llvm-project/cfe/" + SVN_PATH + " ",
                    "svn co " + revision + " http://llvm.org/svn/llvm-project/cfe/" + SVN_PATH + " clang",
                    from_validation)
        os.chdir("..")
        if current_OS == "MacOS" and int(current_OS_version.split(".")[0]) >= 13:
            # Starting with MacOS 10.9 Maverics, the system doesn't contain headers for standard C++ library and
            # the default library is libc++, bit libstdc++. The headers are part of XCode now. But we are checking out
            # headers as part of LLVM source tree, so they will be installed in clang location and clang will be able
            # to find them. Though they may not match to the library installed in the system, but seems that this should
            # not happen.
            # Note, that we can also build a libc++ library, but it must be on system default location or should be passed
            # to the linker explicitly (either through command line or environment variables). So we are not doing it
            # currently to make the build process easier.
            os.chdir("projects")
            try_do_LLVM("load libcxx http://llvm.org/svn/llvm-project/libcxx/" + SVN_PATH + " ",
                    "svn co " + revision + " http://llvm.org/svn/llvm-project/libcxx/" + SVN_PATH + " libcxx",
                    from_validation)
            os.chdir("..")
        if extra == True:
            os.chdir("tools/clang/tools")
            try_do_LLVM("load extra clang extra tools ",
                    "svn co " + revision + " http://llvm.org/svn/llvm-project/clang-tools-extra/" + SVN_PATH + " extra",
                    from_validation)
            os.chdir("../../../projects")
            try_do_LLVM("load extra clang compiler-rt ",
                    "svn co " + revision + " http://llvm.org/svn/llvm-project/compiler-rt/" + SVN_PATH + " compiler-rt",
                    from_validation)
            os.chdir("..")
    else:
        tar = tarball.split(" ")
        os.makedirs(LLVM_SRC) 
        os.chdir(LLVM_SRC) 
        try_do_LLVM("untar LLVM from " + tar[0] + " ",
                    "tar -xvzf " + tar[0] + " --strip-components 1", from_validation)
        os.chdir("./tools") 
        os.makedirs("clang") 
        os.chdir("./clang") 
        try_do_LLVM("untar clang from " + tar[1] + " ",
                    "tar -xvzf " + tar[1] + " --strip-components 1", from_validation)
        os.chdir("../../")
    # paching llvm
    patches = glob.glob(os.environ["ISPC_HOME"] + os.sep + "llvm_patches" + os.sep + "*.*")
    for patch in patches:
        if version_LLVM in os.path.basename(patch):
            if current_OS != "Windows":
                try_do_LLVM("patch LLVM with patch " + patch + " ", "patch -p0 < " + patch, from_validation)
            else:
                try_do_LLVM("patch LLVM with patch " + patch + " ", "C:\\gnuwin32\\bin\\patch.exe -p0 < " + patch, from_validation)
    os.chdir("../")
    # configuring llvm, build first part of selfbuild
    os.makedirs(LLVM_BUILD)
    os.makedirs(LLVM_BIN)
    selfbuild_compiler = ""
    if selfbuild:
        print_debug("Making selfbuild and use folders " + LLVM_BUILD_selfbuild + " and " +
            LLVM_BIN_selfbuild + "\n", from_validation, alloy_build)
        os.makedirs(LLVM_BUILD_selfbuild)
        os.makedirs(LLVM_BIN_selfbuild)
        os.chdir(LLVM_BUILD_selfbuild)
        try_do_LLVM("configure release version for selfbuild ",
                    "../" + LLVM_SRC + "/configure --prefix=" + llvm_home + "/" +
                    LLVM_BIN_selfbuild + " --enable-optimized",
                    from_validation)
        try_do_LLVM("build release version for selfbuild ",
                    make, from_validation)
        try_do_LLVM("install release version for selfbuild ",
                    "make install",
                    from_validation)
        os.chdir("../")
        selfbuild_compiler = " CC="+llvm_home+ "/" + LLVM_BIN_selfbuild + "/bin/clang"
        print_debug("Now we have compiler for selfbuild: " + selfbuild_compiler + "\n", from_validation, alloy_build)
    os.chdir(LLVM_BUILD)
    if debug == False:
        if current_OS != "Windows":
            try_do_LLVM("configure release version ",
                    "../" + LLVM_SRC + "/configure --prefix=" + llvm_home + "/" +
                    LLVM_BIN + " --enable-optimized" + selfbuild_compiler,
                    from_validation)
        else:
            try_do_LLVM("configure release version ",
                    'cmake -G "Visual Studio 11" -DCMAKE_INSTALL_PREFIX="..\\'+ LLVM_BIN +
                    '" -DLLVM_LIT_TOOLS_DIR="C:\\gnuwin32\\bin" ..\\' + LLVM_SRC,
                    from_validation)
    else:
        try_do_LLVM("configure debug version ",
                    "../" + LLVM_SRC + "/configure --prefix=" + llvm_home + "/" + LLVM_BIN +
                    " --enable-debug-runtime --enable-debug-symbols --enable-keep-symbols" + selfbuild_compiler,
                    from_validation)
    # building llvm
    if current_OS != "Windows":
        try_do_LLVM("build LLVM ", make, from_validation)
        try_do_LLVM("install LLVM ", "make install", from_validation)
    else:
        try_do_LLVM("build LLVM and than install LLVM ", "msbuild INSTALL.vcxproj /V:m /p:Platform=Win32 /p:Configuration=Release /t:rebuild", from_validation)
    os.chdir(current_path) 

def check_targets():
    answer = []
    answer_generic = []
    answer_sde = []
    # check what native targets do we have
    if current_OS != "Windows":
        try_do_LLVM("build check_ISA", "clang check_isa.cpp -o check_isa.exe", True)
    else:
        try_do_LLVM("build check_ISA", "cl check_isa.cpp", True)
    SSE2  = ["sse2-i32x4",  "sse2-i32x8"]
    SSE4  = ["sse4-i32x4",  "sse4-i32x8",   "sse4-i16x8", "sse4-i8x16"]
    AVX   = ["avx1-i32x4",  "avx1-i32x8",  "avx1-i32x16",  "avx1-i64x4"]
    AVX11 = ["avx1.1-i32x8","avx1.1-i32x16","avx1.1-i64x4"]
    AVX2  = ["avx2-i32x8",  "avx2-i32x16",  "avx2-i64x4"]
    targets = [["AVX2", AVX2, False], ["AVX1.1", AVX11, False], ["AVX", AVX, False], ["SSE4", SSE4, False], ["SSE2", SSE2, False]]
    f_lines = take_lines("check_isa.exe", "first")
    for i in range(0,5):
        if targets[i][0] in f_lines:
            for j in range(i,5):
                answer = targets[j][1] + answer
                targets[j][2] = True
            break
    if current_OS != "Windows":
        answer_generic = ["generic-4", "generic-16", "generic-8", "generic-1", "generic-32", "generic-64"]
    # now check what targets we have with the help of SDE
    sde_exists = ""
    PATH_dir = string.split(os.getenv("PATH"), os.pathsep)
    if current_OS == "Windows":
        sde_n = "sde.exe"
    else:
        sde_n = "sde"
    for counter in PATH_dir:
        if os.path.exists(counter + os.sep + sde_n) and sde_exists == "":
            sde_exists = counter + os.sep + sde_n
    if os.environ.get("SDE_HOME") != None:
        if os.path.exists(os.environ.get("SDE_HOME") + os.sep + sde_n):
            sde_exists = os.environ.get("SDE_HOME") + os.sep + sde_n
    if sde_exists == "":
        error("you haven't got sde neither in SDE_HOME nor in your PATH.\n" + 
            "To test all platforms please set SDE_HOME to path containing SDE.\n" +
            "Please refer to http://www.intel.com/software/sde for SDE download information.", 2)
        return [answer, answer_generic, answer_sde]
    # here we have SDE
    f_lines = take_lines(sde_exists + " -help", "all")
    for i in range(0,len(f_lines)):
        if targets[3][2] == False and "wsm" in f_lines[i]:
            answer_sde = answer_sde + [["-wsm", "sse4-i32x4"], ["-wsm", "sse4-i32x8"], ["-wsm", "sse4-i16x8"], ["-wsm", "sse4-i8x16"]]
        if targets[2][2] == False and "snb" in f_lines[i]:
            answer_sde = answer_sde + [["-snb", "avx1-i32x4"], ["-snb", "avx1-i32x8"], ["-snb", "avx1-i32x16"], ["-snb", "avx1-i64x4"]]
        if targets[1][2] == False and "ivb" in f_lines[i]:
            answer_sde = answer_sde + [["-ivb", "avx1.1-i32x8"], ["-ivb", "avx1.1-i32x16"], ["-ivb", "avx1.1-i64x4"]]
        if targets[0][2] == False and "hsw" in f_lines[i]:
            answer_sde = answer_sde + [["-hsw", "avx2-i32x8"], ["-hsw", "avx2-i32x16"], ["-hsw", "avx2-i64x4"]]
    return [answer, answer_generic, answer_sde]

def build_ispc(version_LLVM, make):
    current_path = os.getcwd()
    os.chdir(os.environ["ISPC_HOME"])
    if current_OS != "Windows":
        p_temp = os.getenv("PATH")
        os.environ["PATH"] = os.environ["LLVM_HOME"] + "/bin-" + version_LLVM + "/bin:" + os.environ["PATH"]
        try_do_LLVM("clean ISPC for building", "make clean", True)
        try_do_LLVM("build ISPC with LLVM version " + version_LLVM + " ", make, True)
        os.environ["PATH"] = p_temp
    else:
        p_temp = os.getenv("LLVM_INSTALL_DIR")
        v_temp = os.getenv("LLVM_VERSION")
        os.environ["LLVM_INSTALL_DIR"] = os.environ["LLVM_HOME"] + "\\bin-" + version_LLVM
        if version_LLVM == "3.2":
            temp = "3_2"
        if version_LLVM == "3.3":
            temp = "3_3"
        if version_LLVM == "3.4":
            temp = "3_4"
        if version_LLVM == "trunk":
            temp = "3_5"
        os.environ["LLVM_VERSION"] = "LLVM_" + temp
        try_do_LLVM("clean ISPC for building", "msbuild ispc.vcxproj /t:clean", True)
        try_do_LLVM("build ISPC with LLVM version " + version_LLVM + " ", "msbuild ispc.vcxproj /V:m /p:Platform=Win32 /p:Configuration=Release /t:rebuild", True)
        os.environ["LLVM_INSTALL_DIR"] = p_temp
        os.environ["LLVM_VERSION"] = v_temp
    os.chdir(current_path)

def execute_stability(stability, R, print_version):
    stability1 = copy.deepcopy(stability)
    b_temp = run_tests.run_tests(stability1, [], print_version)
    temp = b_temp[0]
    time = b_temp[1]
    for j in range(0,4):
        R[j][0] = R[j][0] + temp[j]
        for i in range(0,len(temp[j])):
            R[j][1].append(temp[4])
    number_of_fails = temp[5]
    number_of_new_fails = len(temp[0]) + len(temp[1])
    number_of_passes = len(temp[2]) + len(temp[3])
    if number_of_fails == 0:
        str_fails = ". No fails"
    else:
        str_fails = ". Fails: " + str(number_of_fails)
    if number_of_new_fails == 0:
        str_new_fails = ", No new fails"
    else:
        str_new_fails = ", New fails: " + str(number_of_new_fails)
    if number_of_passes == 0:
        str_new_passes = "."
    else:
        str_new_passes = ", " + str(number_of_passes) + " new passes."
    if stability.time:
        str_time = " " + time + "\n"
    else:
        str_time = "\n"
    print_debug(temp[4][1:-3] + str_fails + str_new_fails + str_new_passes + str_time, False, stability_log)

def run_special_tests():
   i = 5 

class options_for_drivers:
    pass

def validation_run(only, only_targets, reference_branch, number, notify, update, speed_number, make, perf_llvm, time):
    os.chdir(os.environ["ISPC_HOME"])
    if current_OS != "Windows":
        os.environ["PATH"] = os.environ["ISPC_HOME"] + ":" + os.environ["PATH"]
    if options.notify != "":
        common.remove_if_exists(os.environ["ISPC_HOME"] + os.sep + "notify_log.log")
        smtp_server = os.environ["SMTP_ISPC"]
        msg = MIMEMultipart()
        msg['Subject'] = 'ISPC test system results'
        msg['From'] = 'ISPC_test_system'
        msg['To'] = options.notify
    print_debug("Command: " + ' '.join(sys.argv) + "\n", False, "")
    print_debug("Folder: " + os.environ["ISPC_HOME"] + "\n", False, "")
    date = datetime.datetime.now()
    print_debug("Date: " + date.strftime('%H:%M %d/%m/%Y') + "\n", False, "")
    newest_LLVM="3.4"
# *** *** ***
# Stability validation run
# *** *** ***
    if ((("stability" in only) == True) or ("performance" in only) == False):
        print_debug("\n\nStability validation run\n\n", False, "")
        stability = options_for_drivers()
# stability constant options
        stability.random = False
        stability.ispc_flags = ""
        stability.compiler_exe = None
        stability.num_jobs = speed_number
        stability.verbose = False
        stability.time = time
        stability.non_interactive = True
        stability.update = update
        stability.include_file = None
        stability.silent = True
        stability.in_file = "." + os.sep + f_date + os.sep + "run_tests_log.log"
        stability.verify = False
# stability varying options
        stability.target = ""
        stability.arch = ""
        stability.no_opt = False
        stability.wrapexe = ""
# prepare parameters of run
        [targets_t, targets_generic_t, sde_targets_t] = check_targets()
        rebuild = True
        opts = []
        archs = []
        LLVM = []
        targets = []
        sde_targets = []
# parsing option only, update parameters of run
        if "-O2" in only:
            opts.append(False)
        if "-O0" in only:
            opts.append(True)
        if "x86" in only and not ("x86-64" in only):
            archs.append("x86")
        if "x86-64" in only:
            archs.append("x86-64")
        if "native" in only:
            sde_targets_t = []
        for i in ["3.1", "3.2", "3.3", "3.4", "trunk"]:
            if i in only:
                LLVM.append(i)
        if "current" in only:
            LLVM = [" "]
            rebuild = False
        else:
            common.check_tools(1)
        if only_targets != "":
            only_targets += " "
            only_targets = only_targets.replace("generic "," generic-4 generic-16 ")
            only_targets_t = only_targets.split(" ")
            for i in only_targets_t:
                if i == "":
                    continue
                err = True
                for j in range(0,len(targets_t)):
                    if i in targets_t[j]:
                        targets.append(targets_t[j])
                        err = False
                for j in range(0,len(targets_generic_t)):
                    if i in targets_generic_t[j]:
                        targets.append(targets_generic_t[j])
                        err = False
                for j in range(0,len(sde_targets_t)):
                    if i in sde_targets_t[j][1]:
                        sde_targets.append(sde_targets_t[j])
                        err = False
                if err == True:
                    error("You haven't sde for target " + i, 1)
        else:
            targets = targets_t + targets_generic_t[:-4]
            sde_targets = sde_targets_t
        if "build" in only:
            targets = []
            sde_targets = []
            only = only + " stability "
# finish parameters of run, prepare LLVM
        if len(opts) == 0:
            opts = [False]
        if len(archs) == 0:
            archs = ["x86", "x86-64"]
        if len(LLVM) == 0:
            LLVM = [newest_LLVM, "trunk"]
        gen_archs = ["x86-64"]
        need_LLVM = check_LLVM(LLVM)
        for i in range(0,len(need_LLVM)):
            build_LLVM(need_LLVM[i], "", "", "", False, False, False, True, False, make)
# begin validation run for stabitily
        common.remove_if_exists(stability.in_file)
        R = [[[],[]],[[],[]],[[],[]],[[],[]]]
        print_debug("\n_________________________STABILITY REPORT_________________________\n", False, stability_log)
        for i in range(0,len(LLVM)):
            print_version = 2
            if rebuild:
                build_ispc(LLVM[i], make)
            for j in range(0,len(targets)):
                stability.target = targets[j]
                stability.wrapexe = ""
                if "generic" in targets[j]:
                    arch = gen_archs
                else:
                    arch = archs
                for i1 in range(0,len(arch)):
                    for i2 in range(0,len(opts)):
                        stability.arch = arch[i1]
                        stability.no_opt = opts[i2]
                        execute_stability(stability, R, print_version)
                        print_version = 0
            for j in range(0,len(sde_targets)):
                stability.target = sde_targets[j][1]
                stability.wrapexe = os.environ["SDE_HOME"] + "/sde " + sde_targets[j][0] + " -- "
                for i1 in range(0,len(archs)):
                    for i2 in range(0,len(opts)):
                        stability.arch = archs[i1]
                        stability.no_opt = opts[i2]
                        execute_stability(stability, R, print_version)
                        print_version = 0
# run special tests like embree
# 
        run_special_tests()
        ttt = ["NEW RUNFAILS: ", "NEW COMPFAILS: ", "NEW PASSES RUNFAILS: ", "NEW PASSES COMPFAILS: "]
        for j in range(0,4):
            if len(R[j][0]) == 0:
                print_debug("NO " + ttt[j][:-2] + "\n", False, stability_log)
            else:
                print_debug(ttt[j] + str(len(R[j][0])) + "\n", False, stability_log)
                temp5 = [[],[]]
                for i in range(0,len(R[j][0])):
                    er = True
                    for k in range(0,len(temp5[0])):
                        if R[j][0][i] == temp5[0][k]:
                            temp5[1][k].append(R[j][1][i])
                            er = False
                    if er == True:
                        temp5[0].append(R[j][0][i])
                        temp5[1].append([R[j][1][i]])
                for i in range(0,len(temp5[0])):
                    print_debug("\t" + temp5[0][i] + "\n", True, stability_log)
                    for k in range(0,len(temp5[1][i])):
                        print_debug("\t\t\t" + temp5[1][i][k], True, stability_log)
        print_debug("__________________Watch stability.log for details_________________\n", False, stability_log)
        if options.notify != "":
            attach_mail_file(msg, stability.in_file, "run_tests_log.log")
            attach_mail_file(msg, stability_log, "stability.log")

# *** *** ***
# Performance validation run
# *** *** ***
    if ((("performance" in only) == True) or ("stability" in only) == False):
        print_debug("\n\nPerformance validation run\n\n", False, "")
        common.check_tools(1)
        performance = options_for_drivers()
# performance constant options
        performance.number = number
        performance.config = "." + os.sep + "perf.ini"
        performance.path = "." + os.sep
        performance.silent = True
        performance.output = ""
        performance.compiler = ""
        performance.ref = "ispc_ref"
        if current_OS == "Windows":
            performance.ref = "ispc_ref.exe"
        performance.perf_target = ""
        performance.in_file = "." + os.sep + f_date + os.sep + "performance.log"
# prepare newest LLVM
        need_LLVM = check_LLVM([newest_LLVM])
        if len(need_LLVM) != 0:
            build_LLVM(need_LLVM[0], "", "", "", False, False, False, True, False, make)
        if perf_llvm == False:
            # prepare reference point. build both test and reference compilers
            try_do_LLVM("apply git", "git branch", True)
            temp4 = take_lines("git branch", "all")
            for line in temp4:
                if "*" in line:
                    current_branch = line[2:-1]
            stashing = True
            sys.stdout.write("Please, don't interrupt script here! You can have not sync git status after interruption!\n")
            if "No local changes" in take_lines("git stash", "first"):
                stashing = False
            #try_do_LLVM("stash current branch ", "git stash", True)
            try_do_LLVM("checkout reference branch " + reference_branch + " ", "git checkout " + reference_branch, True)
            sys.stdout.write(".\n")
            build_ispc(newest_LLVM, make)
            sys.stdout.write(".\n")
            if current_OS != "Windows":
                os.rename("ispc", "ispc_ref")
            else:
                common.remove_if_exists("Release\\ispc_ref.exe")
                os.rename("Release\\ispc.exe", "Release\\ispc_ref.exe")
            try_do_LLVM("checkout test branch " + current_branch + " ", "git checkout " + current_branch, True)
            if stashing:
                try_do_LLVM("return current branch ", "git stash pop", True)
            sys.stdout.write("You can interrupt script now.\n")
            build_ispc(newest_LLVM, make)
        else:
            # build compiler with two different LLVM versions
            if len(check_LLVM([reference_branch])) != 0:
                error("you haven't got llvm called " + reference_branch, 1)
            build_ispc(newest_LLVM, make)
            os.rename("ispc", "ispc_ref")
            build_ispc(reference_branch, make)
# begin validation run for performance. output is inserted into perf()
        perf.perf(performance, [])
        if options.notify != "":
            attach_mail_file(msg, performance.in_file, "performance.log")
            attach_mail_file(msg, "." + os.sep + "logs" + os.sep + "perf_build.log", "perf_build.log")

# sending e-mail with results
    if options.notify != "":
        fp = open(os.environ["ISPC_HOME"] + os.sep + "notify_log.log", 'rb')
        f_lines = fp.readlines()
        fp.close()
        line = ""
        for i in range(0,len(f_lines)):
            line = line + f_lines[i][:-1]
            line = line + '   \n'
        text = MIMEText(line, "", "KOI-8")
        msg.attach(text)
        attach_mail_file(msg, alloy_build, "alloy_build.log")
        s = smtplib.SMTP(smtp_server)
        s.sendmail('ISPC_test_system', options.notify, msg.as_string())
        s.quit()

def Main():
    global current_OS
    global current_OS_version
    current_OS_version = platform.release()
    if (platform.system() == 'Windows' or 'CYGWIN_NT' in platform.system()) == True:
        current_OS = "Windows"
    else:
        if (platform.system() == 'Darwin'):
            current_OS = "MacOS"
        else:
            current_OS = "Linux" 

    if (options.build_llvm == False and options.validation_run == False):
        parser.print_help()
        exit(0)

    setting_paths(options.llvm_home, options.ispc_home, options.sde_home)
    if os.environ.get("LLVM_HOME") == None:
        error("you have no LLVM_HOME", 1)
    if os.environ.get("ISPC_HOME") == None:
        error("you have no ISPC_HOME", 1)
    if options.notify != "":
        if os.environ.get("SMTP_ISPC") == None:
            error("you have no SMTP_ISPC in your environment for option notify", 1)
    if options.only != "":
        test_only_r = " 3.1 3.2 3.3 3.4 trunk current build stability performance x86 x86-64 -O0 -O2 native "
        test_only = options.only.split(" ")
        for iterator in test_only:
            if not (" " + iterator + " " in test_only_r):
                error("unknow option for only: " + iterator, 1)
    if current_OS == "Windows":
        if options.debug == True or options.selfbuild == True or options.tarball != "":
            error("Debug, selfbuild and tarball options are unsupported on windows", 1)
    global f_date
    f_date = "logs"
    common.remove_if_exists(f_date)
    os.makedirs(f_date)
    global alloy_build
    alloy_build = os.getcwd() + os.sep + f_date + os.sep + "alloy_build.log"
    global stability_log
    stability_log = os.getcwd() + os.sep + f_date + os.sep + "stability.log"
    current_path = os.getcwd()
    make = "make -j" + options.speed
    if os.environ["ISPC_HOME"] != os.getcwd():
        error("you ISPC_HOME and your current path are different!\n", 2)
    if options.perf_llvm == True:
        if options.branch == "master":
            options.branch = "trunk"
    try:
        start_time = time.time()
        if options.build_llvm:
            build_LLVM(options.version, options.revision, options.folder, options.tarball,
                    options.debug, options.selfbuild, options.extra, False, options.force, make)
        if options.validation_run:
            validation_run(options.only, options.only_targets, options.branch,
                    options.number_for_performance, options.notify, options.update, int(options.speed),
                    make, options.perf_llvm, options.time)
        elapsed_time = time.time() - start_time
        if options.time:
            print_debug("Elapsed time: " + time.strftime('%Hh%Mm%Ssec.', time.gmtime(elapsed_time)) + "\n", False, "")
    finally:
        os.chdir(current_path)
        date_name = "alloy_results_" + datetime.datetime.now().strftime('%Y_%m_%d_%H_%M_%S')
        if os.path.exists(date_name):
            error("It's forbidden to run alloy two times in a second, logs are in ./logs", 1)
        os.rename(f_date, date_name)
        print_debug("Logs are in " + date_name + "\n", False, "")

###Main###
from optparse import OptionParser
from optparse import OptionGroup
import sys
import os
import operator
import time
import glob
import string
import platform
import smtplib
import datetime
import copy
import multiprocessing
from email.MIMEMultipart import MIMEMultipart
from email.MIMEBase import MIMEBase
from email.mime.text import MIMEText
from email.Encoders import encode_base64
# our drivers
import run_tests
import perf
import common
error = common.error
take_lines = common.take_lines
print_debug = common.print_debug
if __name__ == '__main__':
    # parsing options
    class MyParser(OptionParser):
        def format_epilog(self, formatter):
            return self.epilog
    examples =  ("Examples:\n" +
    "Load and build LLVM from trunk\n\talloy.py -b\n" +
    "Load and build LLVM 3.3. Rewrite LLVM folders\n\talloy.py -b --version=3.3 --force\n" +
    "Untar files llvm.tgz clang.tgz, build LLVM from them in folder bin-from_tar\n\talloy.py -b --tarball='llvm.tgz clang.tgz' --folder=from_tar\n" +
    "Load LLVM from trunk, revision r172870. Build it. Do selfbuild\n\talloy.py -b --revision=r172870 --selfbuild\n" +
    "Validation run with LLVM 3.3, trunk; x86, x86-64; -O2;\nall supported targets; performance\n\talloy.py -r\n" + 
    "Validation run with all avx targets and sse4-i8x16 without performance\n\talloy.py -r --only=stability --only-targets='avx sse4-i8x16'\n" +
    "Validation run with avx2-i32x8, all sse4 and sse2 targets\nand all targets with i32x16\n\talloy.py -r --only-targets='avx2-i32x8 sse4 i32x16 sse2'\n" +
    "Stability validation run with LLVM 3.2, 3.3; -O0; x86,\nupdate fail_db.txt with passes and fails\n\talloy.py -r --only='3.2 -O0 stability 3.3 x86' --update-errors=FP\n" +
    "Try to build compiler with all LLVM\n\talloy.py -r --only=build\n" +
    "Performance validation run with 10 runs of each test and comparing to branch 'old'\n\talloy.py -r --only=performance --compare-with=old --number=10\n" +
    "Validation run. Update fail_db.txt with new fails, send results to my@my.com\n\talloy.py -r --update-errors=F --notify='my@my.com'\n")
    num_threads="%s" % multiprocessing.cpu_count()
    parser = MyParser(usage="Usage: alloy.py -r/-b [options]", epilog=examples)
    parser.add_option('-b', '--build-llvm', dest='build_llvm',
        help='ask to build LLVM', default=False, action="store_true")
    parser.add_option('-r', '--run', dest='validation_run',
        help='ask for validation run', default=False, action="store_true")
    parser.add_option('-j', dest='speed',
        help='set -j for make', default=num_threads)
    # options for activity "build LLVM"
    llvm_group = OptionGroup(parser, "Options for building LLVM",
                    "These options must be used with -b option.")
    llvm_group.add_option('--version', dest='version',
        help='version of llvm to build: 3.1 3.2 3.3 3.4 trunk. Default: trunk', default="trunk")
    llvm_group.add_option('--revision', dest='revision',
        help='revision of llvm to build in format r172870', default="")
    llvm_group.add_option('--debug', dest='debug',
        help='debug build of LLVM?', default=False, action="store_true")
    llvm_group.add_option('--folder', dest='folder',
        help='folder to build LLVM in', default="")
    llvm_group.add_option('--tarball', dest='tarball',
        help='"llvm_tarball clang_tarball"', default="")
    llvm_group.add_option('--selfbuild', dest='selfbuild',
        help='make selfbuild of LLVM and clang', default=False, action="store_true")
    llvm_group.add_option('--force', dest='force',
        help='rebuild LLVM', default=False, action='store_true')
    llvm_group.add_option('--extra', dest='extra',
        help='load extra clang tools', default=False, action='store_true')
    parser.add_option_group(llvm_group)
    # options for activity "validation run"
    run_group = OptionGroup(parser, "Options for validation run",
                    "These options must be used with -r option.")
    run_group.add_option('--compare-with', dest='branch',
        help='set performance reference point. Dafault: master', default="master")
    run_group.add_option('--number', dest='number_for_performance',
        help='number of performance runs for each test. Default: 5', default=5)
    run_group.add_option('--notify', dest='notify',
        help='email to sent results to', default="")
    run_group.add_option('--update-errors', dest='update',
        help='rewrite fail_db.txt file according to received results (F or FP)', default="")
    run_group.add_option('--only-targets', dest='only_targets',
        help='set list of targets to test. Possible values - all subnames of targets.',
        default="")
    run_group.add_option('--time', dest='time',
        help='display time of testing', default=False, action='store_true')
    run_group.add_option('--only', dest='only',
        help='set types of tests. Possible values:\n' + 
            '-O0, -O2, x86, x86-64, stability (test only stability), performance (test only performance)\n' +
            'build (only build with different LLVM), 3.1, 3.2, 3.3, 3.4, trunk, native (do not use SDE), current (do not rebuild ISPC).',
            default="")
    run_group.add_option('--perf_LLVM', dest='perf_llvm',
        help='compare LLVM 3.3 with "--compare-with", default trunk', default=False, action='store_true')
    parser.add_option_group(run_group)
    # options for activity "setup PATHS"
    setup_group = OptionGroup(parser, "Options for setup",
                    "These options must be use with -r or -b to setup environment variables")
    setup_group.add_option('--llvm_home', dest='llvm_home',help='path to LLVM',default="")
    setup_group.add_option('--ispc_home', dest='ispc_home',help='path to ISPC',default="")
    setup_group.add_option('--sde_home', dest='sde_home',help='path to SDE',default="")
    parser.add_option_group(setup_group)
    (options, args) = parser.parse_args()
    Main()