OpenCL-CTS/test_common/harness/parseParameters.cpp

//
// Copyright (c) 2017 The Khronos Group Inc.
// 
// 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 "parseParameters.h"

#include "errorHelpers.h"
#include "testHarness.h"
#include "ThreadPool.h"

#include <iostream>
#include <sstream>
#include <sys/types.h>
#include <sys/stat.h>
#include <string.h>

using namespace std;

CompilationMode      gCompilationMode = kOnline;
CompilationCacheMode gCompilationCacheMode = kCacheModeCompileIfAbsent;
std::string          gCompilationCachePath = ".";

void helpInfo ()
{
    log_info("Common options:\n"
             "        -h, --help                  This help\n"
             "        --compilation-mode <mode>   Specify a compilation mode.  Mode can be:\n"
             "                           online     Use online compilation (default)\n"
             "                           binary     Use binary offline compilation\n"
             "                           spir-v     Use SPIR-V offline compilation\n"
             "\n"
             "    For offline compilation (binary and spir-v modes) only:\n"
             "        --compilation-cache-mode <cache-mode>  Specify a compilation caching mode:\n"
             "                                 compile-if-absent  Read from cache if already populated, or\n"
             "                                                    else perform offline compilation (default)\n"
             "                                 force-read      Force reading from the cache\n"
             "                                 overwrite       Disable reading from the cache\n"
             "        --compilation-cache-path <path>   Path for offline compiler output and CL source\n"
             "\n");
}

int parseCustomParam (int argc, const char *argv[], const char *ignore)
{
    int delArg = 0;

    for (int i=1; i<argc; i++)
    {
        if(ignore != 0)
        {
            // skip parameters that require special/different treatment in application
            // (generic interpretation and parameter removal will not be performed)
            const char * ptr = strstr(ignore, argv[i]);
            if(ptr != 0 &&
               (ptr == ignore || ptr[-1] == ' ') && //first on list or ' ' before
               (ptr[strlen(argv[i])] == 0 || ptr[strlen(argv[i])] == ' ')) // last on list or ' ' after
                continue;
        }

        delArg = 0;

        if (strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "--help") == 0)
        {
            // Note: we don't increment delArg to delete this argument,
            // to allow the caller's argument parsing routine to see the
            // option and print its own help.
            helpInfo ();
        }
        else if (!strcmp(argv[i], "--compilation-mode"))
        {
            delArg++;
            if ((i + 1) < argc)
            {
                delArg++;
                const char *mode = argv[i + 1];

                if (!strcmp(mode, "online"))
                {
                    gCompilationMode = kOnline;
                }
                else if (!strcmp(mode, "binary"))
                {
                    gCompilationMode = kBinary;
                }
                else if (!strcmp(mode, "spir-v"))
                {
                    gCompilationMode = kSpir_v;
                }
                else
                {
                    log_error("Compilation mode not recognized: %s\n", mode);
                    return -1;
                }
                log_info("Compilation mode specified: %s\n", mode);
            }
            else
            {
                log_error("Compilation mode parameters are incorrect. Usage:\n"
                          "  --compilation-mode <online|binary|spir-v>\n");
                return -1;
            }
        }
        else if (!strcmp(argv[i], "--compilation-cache-mode"))
        {
            delArg++;
            if ((i + 1) < argc)
            {
                delArg++;
                const char *mode = argv[i + 1];

                if (!strcmp(mode, "compile-if-absent"))
                {
                    gCompilationCacheMode = kCacheModeCompileIfAbsent;
                }
                else if (!strcmp(mode, "force-read"))
                {
                    gCompilationCacheMode = kCacheModeForceRead;
                }
                else if (!strcmp(mode, "overwrite"))
                {
                    gCompilationCacheMode = kCacheModeOverwrite;
                }
                else
                {
                    log_error("Compilation cache mode not recognized: %s\n", mode);
                    return -1;
                }
                log_info("Compilation cache mode specified: %s\n", mode);
            }
            else
            {
                log_error("Compilation cache mode parameters are incorrect. Usage:\n"
                          "  --compilation-cache-mode <compile-if-absent|force-read|overwrite>\n");
                return -1;
            }
        }
        else if (!strcmp(argv[i], "--compilation-cache-path"))
        {
            delArg++;
            if ((i + 1) < argc)
            {
                delArg++;
                gCompilationCachePath = argv[i + 1];
            }
            else
            {
                log_error("Path argument for --compilation-cache-path was not specified.\n");
                return -1;
            }
        }

        //cleaning parameters from argv tab
        for (int j = i; j < argc - delArg; j++)
            argv[j] = argv[j + delArg];
        argc -= delArg;
        i -= delArg;
    }

    if (gCompilationCacheMode != kCacheModeCompileIfAbsent && gCompilationMode == kOnline)
    {
        log_error("Compilation cache mode can only be specified when using an offline compilation mode.\n");
        return -1;
    }

    return argc;
}

bool is_power_of_two(int number)
{
    return number && !(number & (number - 1));
}

extern void parseWimpyReductionFactor(const char *&arg, int &wimpyReductionFactor)
{
    const char *arg_temp = strchr(&arg[1], ']');
    if (arg_temp != 0)
    {
        int new_factor = atoi(&arg[1]);
        arg = arg_temp; // Advance until ']'
        if (is_power_of_two(new_factor))
        {
            log_info("\n Wimpy reduction factor changed from %d to %d \n", wimpyReductionFactor, new_factor);
            wimpyReductionFactor = new_factor;
        }
        else
        {
            log_info("\n WARNING: Incorrect wimpy reduction factor %d, must be power of 2. The default value will be used.\n", new_factor);
        }
    }
}