[llvm] [VectorCombine] Fold bitcast(bitreverse.v8i8(bitcast(IntTy))) into bswap+bitreverse (PR #209037)

[Deepak Shirke via llvm-commits]

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@@ -0,0 +1,60 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
+; RUN: opt -S -passes=vector-combine -mtriple=aarch64 < %s | FileCheck %s
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deepakshirkem wrote:

I tried using the same `CHECK` prefix for both the `aarch64` and `aarch64_be` RUN lines, but `update_test_checks.py` reports a warning: `Found conflicting asm under the same prefix: 'CHECK'` because the IR header differs between the two targets due to the datalayout. Would it be okay to use `--check-prefix=BE` for the `aarch64_be` test instead?


https://github.com/llvm/llvm-project/pull/209037