void Options::initialize()
{
// Initialize each of the options with their default values:
#define FOR_EACH_OPTION(type_, name_, defaultValue_) \
name_() = defaultValue_;
JSC_OPTIONS(FOR_EACH_OPTION)
#undef FOR_EACH_OPTION
#if USE(CF) || OS(UNIX)
objectsAreImmortal() = !!getenv("JSImmortalZombieEnabled");
useZombieMode() = !!getenv("JSImmortalZombieEnabled") || !!getenv("JSZombieEnabled");
gcMaxHeapSize() = getenv("GCMaxHeapSize") ? HeapStatistics::parseMemoryAmount(getenv("GCMaxHeapSize")) : 0;
recordGCPauseTimes() = !!getenv("JSRecordGCPauseTimes");
logHeapStatisticsAtExit() = gcMaxHeapSize() || recordGCPauseTimes();
#endif
// Allow environment vars to override options if applicable.
// The evn var should be the name of the option prefixed with
// "JSC_".
#define FOR_EACH_OPTION(type_, name_, defaultValue_) \
overrideOptionWithHeuristic(name_(), "JSC_" #name_);
JSC_OPTIONS(FOR_EACH_OPTION)
#undef FOR_EACH_OPTION
#if 0
; // Deconfuse editors that do auto indentation
#endif
#if !ENABLE(JIT)
useJIT() = false;
useDFGJIT() = false;
#endif
#if !ENABLE(YARR_JIT)
useRegExpJIT() = false;
#endif
// Do range checks where needed and make corrections to the options:
ASSERT(thresholdForOptimizeAfterLongWarmUp() >= thresholdForOptimizeAfterWarmUp());
ASSERT(thresholdForOptimizeAfterWarmUp() >= thresholdForOptimizeSoon());
ASSERT(thresholdForOptimizeAfterWarmUp() >= 0);
// Compute the maximum value of the reoptimization retry counter. This is simply
// the largest value at which we don't overflow the execute counter, when using it
// to left-shift the execution counter by this amount. Currently the value ends
// up being 18, so this loop is not so terrible; it probably takes up ~100 cycles
// total on a 32-bit processor.
reoptimizationRetryCounterMax() = 0;
while ((static_cast<int64_t>(thresholdForOptimizeAfterLongWarmUp()) << (reoptimizationRetryCounterMax() + 1)) <= static_cast<int64_t>(std::numeric_limits<int32>::max()))
reoptimizationRetryCounterMax()++;
ASSERT((static_cast<int64_t>(thresholdForOptimizeAfterLongWarmUp()) << reoptimizationRetryCounterMax()) > 0);
ASSERT((static_cast<int64_t>(thresholdForOptimizeAfterLongWarmUp()) << reoptimizationRetryCounterMax()) <= static_cast<int64_t>(std::numeric_limits<int32>::max()));
}
void Options::initialize()
{
// Initialize each of the options with their default values:
#define FOR_EACH_OPTION(type_, name_, defaultValue_) \
name_() = defaultValue_;
JSC_OPTIONS(FOR_EACH_OPTION)
#undef FOR_EACH_OPTION
#if USE(CF) || OS(UNIX)
objectsAreImmortal() = !!getenv("JSImmortalZombieEnabled");
useZombieMode() = !!getenv("JSImmortalZombieEnabled") || !!getenv("JSZombieEnabled");
gcMaxHeapSize() = getenv("GCMaxHeapSize") ? HeapStatistics::parseMemoryAmount(getenv("GCMaxHeapSize")) : 0;
recordGCPauseTimes() = !!getenv("JSRecordGCPauseTimes");
logHeapStatisticsAtExit() = gcMaxHeapSize() || recordGCPauseTimes();
#endif
// Allow environment vars to override options if applicable.
// The evn var should be the name of the option prefixed with
// "JSC_".
#define FOR_EACH_OPTION(type_, name_, defaultValue_) \
if (overrideOptionWithHeuristic(name_(), "JSC_" #name_)) \
s_options[OPT_##name_].didOverride = true;
JSC_OPTIONS(FOR_EACH_OPTION)
#undef FOR_EACH_OPTION
#if 0
; // Deconfuse editors that do auto indentation
#endif
recomputeDependentOptions();
// Do range checks where needed and make corrections to the options:
ASSERT(Options::thresholdForOptimizeAfterLongWarmUp() >= Options::thresholdForOptimizeAfterWarmUp());
ASSERT(Options::thresholdForOptimizeAfterWarmUp() >= Options::thresholdForOptimizeSoon());
ASSERT(Options::thresholdForOptimizeAfterWarmUp() >= 0);
}
