DavidSpickett wrote:

We have some test-suite failures on Arm 32-bit: 
https://lab.llvm.org/buildbot/#/builders/122/builds/4
```
fatal error: error in backend: Can't create a MachineFunction using a Module 
with a Target-incompatible DataLayout attached
  Target DataLayout: e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64
  Module DataLayout: e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64

PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and 
include the crash backtrace and dumped files.
Stack dump:
0.  Program arguments: 
/buildbot/clang-armv8-lld-2stage/stage2.install/bin/clang++ -DNDEBUG -x c++ 
-mcpu=neoverse-n1 -fuse-ld=lld -w -Werror=date-time -xir -MD -MT 
Bitcode/simd_ops/CMakeFiles/simd_ops.dir/ARM_halide_runtime.bc.o -MF 
CMakeFiles/simd_ops.dir/ARM_halide_runtime.bc.o.d -o 
CMakeFiles/simd_ops.dir/ARM_halide_runtime.bc.o -c 
/buildbot/clang-armv8-lld-2stage/test/test-suite/Bitcode/simd_ops/ARM_halide_runtime.bc
1.  Code generation
2.  Running pass 'Function Pass Manager' on module 
'/buildbot/clang-armv8-lld-2stage/test/test-suite/Bitcode/simd_ops/ARM_halide_runtime.bc'.
3.  Running pass 'ARM Instruction Selection' on function 
'@_ZN6Halide7Runtime8Internal14default_mallocEPvj'
```
I'll see if that can be reproduced with just clang shortly, I expect so.

https://github.com/llvm/llvm-project/pull/224012
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