[all-commits] [llvm/llvm-project] 57e856: [flang] Add initial implementation for CPU_TIME

[Diana via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 57e85622bbdb2eb18cc03df2ea457019c58f6912
      https://github.com/llvm/llvm-project/commit/57e85622bbdb2eb18cc03df2ea457019c58f6912
  Author: Diana Picus <diana.picus at linaro.org>
  Date:   2021-06-14 (Mon, 14 Jun 2021)

  Changed paths:
    M flang/runtime/CMakeLists.txt
    A flang/runtime/time-intrinsic.cpp
    M flang/unittests/RuntimeGTest/CMakeLists.txt
    A flang/unittests/RuntimeGTest/Time.cpp

  Log Message:
  -----------
  [flang] Add initial implementation for CPU_TIME

Add an implementation for CPU_TIME based on std::clock(), which should
be available on all the platforms that we support.

Also add a test that's basically just a sanity check to make sure we
return positive values and that the value returned at the start of some
amount of work is larger than the one returned after the end.

Differential Revision: https://reviews.llvm.org/D104019