| Issue |
90954
|
| Summary |
[X86] Crash when building SingleSource/UnitTests/Matrix/AMXINT8/t_gemm_bf16.cpp: Assertion `RegNo && RegNo < 388 && "Invalid register number!"'
|
| Labels |
backend:X86,
llvm:crash,
crash-on-valid
|
| Assignees |
|
| Reporter |
fhahn
|
Building the tests in `SingleSource/UnitTests/Matrix/AMXINT8/` added in [afc7e6588b3b43351e49f697fe48283ec5056c11](https://github.com/llvm/llvm-test-suite/commit/afc7e6588b3b43351e49f697fe48283ec5056c11) crashes `clang` with a `skylake-avx512` CPU.
I think this has been happening for a while.
Reduced IR reproducer:
https://llvm.godbolt.org/z/ax36ojxj5
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