review tests; delete or move some tests

Author: yamash-fj

clang/test/Driver/aarch64-mcpu-no-feat.c

@@ -0,0 +1,17 @@
+// Check that explicit -mcpu=<cpu>+no<feature> preserves -<feature> option and removes the feature when the feature is implied by the CPU or its base architecture. 
+// SVE and RandGen are default features of neoverse-v2 (defined in AArch64Processors.td).
+// SVE and SB are default features of armv9 (defined in AArch64Features.td).
+// SHA2 is not part of the default feature set for either Neoverse V2 or Armv9.
+
+// RUN: %clang --target=aarch64-linux-gnu -mcpu=neoverse-v2+nosve %s -### 2>&1 | FileCheck %s --check-prefix=NEOVERSE-V2-NOSVE
+// NEOVERSE-V2-NOSVE: "-target-feature" "-sve"
+
+// RUN: %clang --target=aarch64-linux-gnu -mcpu=neoverse-v2+norng %s -### 2>&1 | FileCheck %s --check-prefix=NEOVERSE-V2-NORNG
+// NEOVERSE-V2-NORNG: "-target-feature" "-rand"
+
+// RUN: %clang --target=aarch64-linux-gnu -mcpu=neoverse-v2+nosb %s -### 2>&1 | FileCheck %s --check-prefix=NEOVERSE-V2-NOSB
+// NEOVERSE-V2-NOSB: "-target-feature" "-sb"
+
+// RUN: %clang --target=aarch64-linux-gnu -mcpu=neoverse-v2+nosha2 %s -### 2>&1 | FileCheck %s --check-prefix=NEOVERSE-V2-NOSHA2
+// NEOVERSE-V2-NOSHA2-NOT: "-target-feature" "+sha2"
+// NEOVERSE-V2-NOSHA2-NOT: "-target-feature" "-sha2"

clang/test/Driver/aarch64-no-feat.c

@@ -14,3 +14,7 @@
 // RUN: %clang -### -target aarch64-none-elf -march=armv8.5a+nosb %s 2>&1 | FileCheck %s --check-prefix=NOSB
 // ABSENT-NOT: "-target-feature" "+sb"
 // ABSENT-NOT: "-target-feature" "-sb"
+
+// RUN: %clang -### -target aarch64-none-elf -mcpu=neoverse-v2+sb %s 2>&1 | FileCheck %s --check-prefix=REDUNDANT
+// REDUNDANT-NOT: "-target-feature" "+sb"
+// REDUNDANT-NOT: "-target-feature" "-sb"