Revert "Add Chrono.h - std::chrono support header"

This reverts commit r284590 as it fails on the mingw buildbot. I think I know the
fix, but I cannot test it right now. Will reapply when I verify it works ok.

This reverts r284590.

llvm-svn: 284615

1 files changed, 0 insertions, 79 deletions

diff --git a/llvm/unittests/Support/Chrono.cpp b/llvm/unittests/Support/Chrono.cpp
deleted file mode 100644
index 3d578780756..00000000000
--- a/llvm/unittests/Support/Chrono.cpp
+++ /dev/null
@@ -1,79 +0,0 @@
-//===- llvm/unittest/Support/Chrono.cpp - Time utilities tests ------------===//
-//
-//           The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Support/Chrono.h"
-#include "llvm/ADT/SmallVector.h"
-#include "gtest/gtest.h"
-
-using namespace llvm;
-using namespace llvm::sys;
-using namespace std::chrono;
-
-namespace {
-
-TEST(Chrono, TimeTConversion) {
-  EXPECT_EQ(time_t(0), toTimeT(toTimePoint(time_t(0))));
-  EXPECT_EQ(time_t(1), toTimeT(toTimePoint(time_t(1))));
-  EXPECT_EQ(time_t(47), toTimeT(toTimePoint(time_t(47))));
-
-  TimePoint<> TP;
-  EXPECT_EQ(TP, toTimePoint(toTimeT(TP)));
-  TP += seconds(1);
-  EXPECT_EQ(TP, toTimePoint(toTimeT(TP)));
-  TP += hours(47);
-  EXPECT_EQ(TP, toTimePoint(toTimeT(TP)));
-}
-
-TEST(Chrono, StringConversion) {
-  std::string S;
-  raw_string_ostream OS(S);
-  OS << system_clock::now();
-
-  // Do a basic sanity check on the output.
-  // The format we expect is YYYY-MM-DD HH:MM:SS.MMMUUUNNN
-  StringRef Date, Time;
-  std::tie(Date, Time) = StringRef(OS.str()).split(' ');
-
-  SmallVector<StringRef, 3> Components;
-  Date.split(Components, '-');
-  ASSERT_EQ(3u, Components.size());
-  EXPECT_EQ(4u, Components[0].size());
-  EXPECT_EQ(2u, Components[1].size());
-  EXPECT_EQ(2u, Components[2].size());
-
-  StringRef Sec, Nano;
-  std::tie(Sec, Nano) = Time.split('.');
-
-  Components.clear();
-  Sec.split(Components, ':');
-  ASSERT_EQ(3u, Components.size());
-  EXPECT_EQ(2u, Components[0].size());
-  EXPECT_EQ(2u, Components[1].size());
-  EXPECT_EQ(2u, Components[2].size());
-  EXPECT_EQ(9u, Nano.size());
-}
-
-// Test that toTimePoint and toTimeT can be called with a arguments with varying
-// precisions.
-TEST(Chrono, ImplicitConversions) {
-  std::time_t TimeT = 47;
-  TimePoint<seconds> Sec = toTimePoint(TimeT);
-  TimePoint<milliseconds> Milli = toTimePoint(TimeT);
-  TimePoint<microseconds> Micro = toTimePoint(TimeT);
-  TimePoint<nanoseconds> Nano = toTimePoint(TimeT);
-  EXPECT_EQ(Sec, Milli);
-  EXPECT_EQ(Sec, Micro);
-  EXPECT_EQ(Sec, Nano);
-  EXPECT_EQ(TimeT, toTimeT(Sec));
-  EXPECT_EQ(TimeT, toTimeT(Milli));
-  EXPECT_EQ(TimeT, toTimeT(Micro));
-  EXPECT_EQ(TimeT, toTimeT(Nano));
-}
-
-} // anonymous namespace