LLVM 21.1.1 test failures on Fedora 43
--------------------------------------

(29 Sep 2025)

Compared to LLVM 20.0.0, all the 27 failing 'libarcher' tests pass now on
LLVM 21.1.0.  But the 'libomp' and 'MLIR' test suites still have the
same failures.

I used the LLVM 2.1.0 build log for llvm-21.1.1-2.0.riscv64.fc43 from here:

    https://riscv-koji.fedoraproject.org/koji/packageinfo?packageID=21312

libomp
------

Failed Tests (7):
  libomp :: ompt/misc/control_tool.c
  libomp :: ompt/synchronization/barrier/explicit.c
  libomp :: ompt/synchronization/critical.c
  libomp :: ompt/synchronization/flush.c
  libomp :: ompt/synchronization/ordered.c
  libomp :: ompt/synchronization/taskgroup.c
  libomp :: ompt/synchronization/taskwait.c

MLIR
----

Failed Tests (27):
  MLIR :: CAPI/execution_engine.c
  MLIR :: mlir-runner/async-error.mlir
  MLIR :: mlir-runner/async-func.mlir
  MLIR :: mlir-runner/async-group.mlir
  MLIR :: mlir-runner/async-value.mlir
  MLIR :: mlir-runner/async.mlir
  MLIR :: mlir-runner/bare-ptr-call-conv.mlir
  MLIR :: mlir-runner/copy.mlir
  MLIR :: mlir-runner/expand-arith-ops.mlir
  MLIR :: mlir-runner/global-constructors.mlir
  MLIR :: mlir-runner/global-memref.mlir
  MLIR :: mlir-runner/math-polynomial-approx.mlir
  MLIR :: mlir-runner/memref-reinterpret-cast.mlir
  MLIR :: mlir-runner/memref-reshape.mlir
  MLIR :: mlir-runner/sgemm-naive-codegen.mlir
  MLIR :: mlir-runner/simple.mlir
  MLIR :: mlir-runner/test-expand-math-approx.mlir
  MLIR :: mlir-runner/unranked-memref.mlir
  MLIR :: mlir-runner/utils.mlir
  MLIR :: python/execution_engine.py
  MLIR :: python/multithreaded_tests.py
  MLIR-Unit :: ExecutionEngine/./MLIRExecutionEngineTests/0/6
  MLIR-Unit :: ExecutionEngine/./MLIRExecutionEngineTests/1/6
  MLIR-Unit :: ExecutionEngine/./MLIRExecutionEngineTests/2/6
  MLIR-Unit :: ExecutionEngine/./MLIRExecutionEngineTests/3/6
  MLIR-Unit :: ExecutionEngine/./MLIRExecutionEngineTests/4/6
  MLIR-Unit :: ExecutionEngine/./MLIRExecutionEngineTests/5/6


    * * *

For comparison, here are the failures with LLVM 20.0.0 failures:

    https://kashyapc.fedorapeople.org/risc-v/logs/test-failures-llvm-rawhide-p550.txt