[all-commits] [llvm/llvm-project] 5288d7: [OpenMP][OMPT] fix reduction test for 32-bit x86

[Joachim via All-commits]

  Branch: refs/heads/release/10.x
  Home:   https://github.com/llvm/llvm-project
  Commit: 5288d7af5bc1b6775e122df5346f7cde9f65881d
      https://github.com/llvm/llvm-project/commit/5288d7af5bc1b6775e122df5346f7cde9f65881d
  Author: protze at itc.rwth-aachen.de <protze at itc.rwth-aachen.de>
  Date:   2020-02-05 (Wed, 05 Feb 2020)

  Changed paths:
    M openmp/runtime/test/ompt/synchronization/reduction/tree_reduce.c

  Log Message:
  -----------
  [OpenMP][OMPT] fix reduction test for 32-bit x86

Fixes [[ https://bugs.llvm.org/show_bug.cgi?id=44733 | TEST 'libomp :: ompt/synchronization/reduction/tree_reduce.c' FAILED on 32-bit x86 ]]

For 32-bit we need at least 3 variables to avoid atomic reduction to be
choosen by runtime function `__kmp_determine_reduction_method`.
This patch adds reduction variables to the testcase.

Reviewers: mgorny, Hahnfeld

Differential Revision: https://reviews.llvm.org/D73850

(cherry picked from commit 90e4ebdce55fd3c1f8877f19784a5339b9890f98)