================
@@ -1,8 +1,9 @@
 // RUN: %clang -### --target=aarch64-none-elf -march=armv8a+predres     %s 
2>&1 | FileCheck %s
+// RUN: %clang -### --target=aarch64-none-elf -mcpu=cortex-a520         %s 
2>&1 | FileCheck %s
 // CHECK: "-target-feature" "+predres"
 // CHECK-NOT: "-target-feature" "-predres"
 
-// RUN: %clang -### --target=aarch64-none-elf -march=armv8.5a+nopredres %s 
2>&1 | FileCheck %s --check-prefix=NOPR
+// RUN: %clang -### --target=aarch64-none-elf -mcpu=cortex-a520+nopredres %s 
2>&1 | FileCheck %s --check-prefix=NOPR
----------------
ostannard wrote:

Because `armv8.5a` doesn't have the `predres` feature by default, adding 
`+nopredres` doesn't cause it to appear in the `-###` output. `cortex-a520` 
does have `predres` by default, so it does.

https://github.com/llvm/llvm-project/pull/78270
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