[all-commits] [llvm/llvm-project] 13080c: [compiler-rt][test] XFAIL two tests on 32-bit sparc

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  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 13080ca1f0823b8df9651c1977040e5471c4a431
      https://github.com/llvm/llvm-project/commit/13080ca1f0823b8df9651c1977040e5471c4a431
  Author: Rainer Orth <ro at gcc.gnu.org>
  Date:   2020-08-18 (Tue, 18 Aug 2020)

  Changed paths:
    M compiler-rt/test/profile/Posix/instrprof-gcov-parallel.test
    M compiler-rt/test/ubsan/TestCases/Float/cast-overflow.cpp

  Log Message:
  -----------
  [compiler-rt][test] XFAIL two tests on 32-bit sparc

Two tests `FAIL` on 32-bit sparc:

  Profile-sparc :: Posix/instrprof-gcov-parallel.test
  UBSan-Standalone-sparc :: TestCases/Float/cast-overflow.cpp

The failure mode is similar:

  Undefined                       first referenced
   symbol                             in file
  __atomic_store_4                    /var/tmp/instrprof-gcov-parallel-6afe8d.o
  __atomic_load_4                     /var/tmp/instrprof-gcov-parallel-6afe8d.o

  Undefined                       first referenced
   symbol                             in file
  __atomic_load_1                     /var/tmp/cast-overflow-72a808.o

This is a known bug: `clang` doesn't inline atomics on 32-bit sparc, unlike
`gcc`.

The patch therefore `XFAIL`s the tests.

Tested on `sparcv9-sun-solaris2.11` and `amd64-pc-solaris2.11`.

Differential Revision: https://reviews.llvm.org/D85346