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[dsymutil] Ensure we're comparing time stamps with the same precision.

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After TimePoint's precision was increased in LLVM we started seeing
failures because the modification times didn't match. This adds a time
cast to ensure that we're comparing TimePoints with the same amount of
precision.

llvm-svn: 348283
This commit is contained in:
Jonas Devlieghere 2018-12-04 17:15:23 +00:00
parent 07843640d5
commit e35f48f622
1 changed files with 14 additions and 9 deletions
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23
llvm/tools/dsymutil/DwarfLinker.cpp
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@ -2417,15 +2417,20 @@ bool DwarfLinker::link(const DebugMap &Map) {
warn(Err.message());
continue;
}
if (!Options.NoTimestamp &&
Stat.getLastModificationTime() !=
sys::TimePoint<>(LinkContext.DMO.getTimestamp())) {
// Not using the helper here as we can easily stream TimePoint<>.
WithColor::warning()
<< "Timestamp mismatch for " << File << ": "
<< Stat.getLastModificationTime() << " and "
<< sys::TimePoint<>(LinkContext.DMO.getTimestamp()) << "\n";
continue;
if (!Options.NoTimestamp) {
// The modification can have sub-second precision so we need to cast
// away the extra precision that's not present in the debug map.
auto ModificationTime =
std::chrono::time_point_cast<std::chrono::seconds>(
Stat.getLastModificationTime());
if (ModificationTime != LinkContext.DMO.getTimestamp()) {
// Not using the helper here as we can easily stream TimePoint<>.
WithColor::warning()
<< "Timestamp mismatch for " << File << ": "
<< Stat.getLastModificationTime() << " and "
<< sys::TimePoint<>(LinkContext.DMO.getTimestamp()) << "\n";
continue;
}
}
// Copy the module into the .swift_ast section.