[Libre-soc-bugs] [Bug 753] New: simulator somehow ends up with SO set even though nothing writes to it

bugzilla-daemon at libre-soc.org bugzilla-daemon at libre-soc.org
Thu Dec 9 06:12:44 GMT 2021


https://bugs.libre-soc.org/show_bug.cgi?id=753

            Bug ID: 753
           Summary: simulator somehow ends up with SO set even though
                    nothing writes to it
           Product: Libre-SOC's second ASIC
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: CONFIRMED
          Severity: major
          Priority: ---
         Component: source code
          Assignee: lkcl at lkcl.net
          Reporter: programmerjake at gmail.com
                CC: libre-soc-bugs at lists.libre-soc.org
            Blocks: 745
   NLnet milestone: ---

running src/soc/fu/shift_rot/test/test_pipe_caller.py
at soc.git:
commit 031bebcc32d72f2000f13a316dae1f1cb4a8874d (HEAD -> master, origin/master,
origin/HEAD)
Author: Jacob Lifshay <programmerjake at gmail.com>
Date:   Wed Dec 8 22:05:15 2021 -0800

    add bitmanip tests

openpower-isa.git:
commit 950e54f10be461122e30fde1b2957b342bb9b0ba (HEAD -> master, origin/master,
origin/HEAD)
Author: Jacob Lifshay <programmerjake at gmail.com>
Date:   Wed Dec 8 22:04:10 2021 -0800

    make ternlogi tests run

Traceback (most recent call last):
  File "src/soc/fu/shift_rot/test/test_pipe_caller.py", line 157, in process
    yield from self.execute(alu, instruction, pdecode2, test)
  File "src/soc/fu/shift_rot/test/test_pipe_caller.py", line 126, in execute
    yield from self.check_alu_outputs(alu, pdecode2,
  File "src/soc/fu/shift_rot/test/test_pipe_caller.py", line 188, in
check_alu_outputs
    ALUHelpers.check_cr_a(self, res, sim_o, "CR%d %s" % (cridx, code))
  File ".../openpower-isa/src/openpower/test/common.py", line 581, in
check_cr_a
    dut.assertEqual(cr_expected, cr_actual, msg)
AssertionError: 9 != 8 : CR0 .4byte 0x14642ff9 # ternlogi. 3, 4, 5, 255


Referenced Bugs:

https://bugs.libre-soc.org/show_bug.cgi?id=745
[Bug 745] OP_TERNARY instruction
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