Issue #15986 has been updated by vo.x (Vit Ondruch).

File build-armv7hl.log added
File build-s390x.log added
File build-x86_64.log added

Here are the logs (bit messy again, but I hope you can get the information).

----------------------------------------
Bug #15986: `TestJIT#test_block_handler_with_possible_frame_omitted_inlining` fails on s390x and armv7hl
https://bugs.ruby-lang.org/issues/15986#change-79360

* Author: vo.x (Vit Ondruch)
* Status: Feedback
* Priority: Normal
* Assignee: k0kubun (Takashi Kokubun)
* Target version: 
* ruby -v: ruby -v: ruby 2.7.0dev (2019-07-04T10:34:08Z master d9f8b88b47) [s390x-linux]
* Backport: 2.4: UNKNOWN, 2.5: UNKNOWN, 2.6: UNKNOWN
----------------------------------------
I am trying to build the Ruby 2.7 snapshot for Fedora Rawhide [1], but I observe the following test failure on s390x and aarch64 platforms:

~~~
  1) Failure:
TestJIT#test_block_handler_with_possible_frame_omitted_inlining [/builddir/build/BUILD/ruby-2.7.0-d9f8b88b47/test/ruby/test_jit.rb:846]:
Expected 2 times of JIT success, but succeeded 1 times.
script:
"""
def multiply(a, b)
  a *= b
end
3.times do
  p multiply(7.0, 10.0)
end
"""
stderr:
"""
JIT success (65.9ms): block in <main>@-e:6 -> /tmp/_ruby_mjit_p54157u0.c
gcc: fatal error: output filename may not be empty
compilation terminated.
Successful MJIT finish
"""
..
<2> expected but was
<1>.
Finished tests in 440.892116s, 47.2746 tests/s, 6150.4071 assertions/s.
~~~


[1]: https://koji.fedoraproject.org/koji/taskinfo?taskID=36030301

---Files--------------------------------
build-s390x.log (1.29 MB)
build-armv7hl.log (1.26 MB)
build-x86_64.log (1.28 MB)
mjit_debug.diff (1.69 KB)
build-x86_64.log (2.76 KB)
build-s390x.log (3.03 KB)
build-armv7hl.log (2.86 KB)


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