[clang] [llvm] [AArch64] Fix feature flags dependecies (PR #90612)

[via llvm-commits]

================
@@ -22,6 +22,14 @@
 // RUN: %clang -target aarch64 -march=armv9.5-a+cpa -### -c %s 2>&1 | FileCheck -check-prefix=V95A-CPA %s
 // V95A-CPA: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+v9.5a"{{.*}} "-target-feature" "+cpa"
 
+// RUN: %clang -target aarch64 -march=armv9.5a+cpa -### -c %s 2>&1 | FileCheck -check-prefix=V95A-LUT %s
+// RUN: %clang -target aarch64 -march=armv9.5-a+cpa -### -c %s 2>&1 | FileCheck -check-prefix=V95A-LUT %s
+// V95A-LUT: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+v9.5a"{{.*}} "-target-feature" "+lut"
+
+// RUN: %clang -target aarch64 -march=armv9.5a+cpa -### -c %s 2>&1 | FileCheck -check-prefix=V95A-FAMINMAX %s
+// RUN: %clang -target aarch64 -march=armv9.5-a+cpa -### -c %s 2>&1 | FileCheck -check-prefix=V95A-FAMINMAX %s
+// V95A-FAMINMAX: "-cc1"{{.*}} "-triple" "aarch64{{.*}}" "-target-cpu" "generic" "-target-feature" "+v9.5a"{{.*}} "-target-feature" "+faminmax"
+
----------------
Lukacma wrote:

I just followed the pattern for other flags here, you can see that pauth-lr and tlbiw have separate run lines as well. But I aggree that maybe we should collapse it into one run line

https://github.com/llvm/llvm-project/pull/90612