MaskRay added inline comments.

================
Comment at: clang/test/Driver/aarch64-implied-sme-features.c:49
+// RUN: %clang -target aarch64-linux-gnu -march=armv8-a+nosme+sme-i16i64 %s 
-### 2>&1 | FileCheck %s --check-prefix=SME-SUBFEATURE-CONFLICT-REV
+// SME-SUBFEATURE-CONFLICT-REV: "-target-feature" "-sme-f64f64" 
"-target-feature" "+sme-i16i64" "-target-feature" "+sme" "-target-feature" 
"+bf16"
----------------
michaelplatings wrote:
> Hi Bryan, this test fails in our downstream toolchain because it has 
> additional features that show up in between these features. Breaking the line 
> up as shown would fix this. Another option could be to add `{{.*}}` between 
> the features. Doing likewise for other checks in this file would make them 
> less brittle as well.
First: `-target ` has been deprecated since Clang 3.4, Use `--target=` for new 
tests.

Do you know why you have additional features? I think placing 
`"-target-feature"` on the same line is generally a good practice. It 
strengthens the test to ensure the feature set is compressive is not 
interleaved by other stuff.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D142702/new/

https://reviews.llvm.org/D142702

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