[X86][test] Added extra cet tests, NFC (#88736)

Updated cet test to:
-Check different modules based on different cet options
-Added negative tests also

---------

Signed-off-by: Isha Agarwal <isha.agarwal@intel.com>

clang/test/CodeGen/X86/x86-cf-protection.c

@@ -1,13 +1,20 @@
 // RUN: %clang_cc1 -E -triple i386 -dM -o - -fcf-protection=return %s | FileCheck %s --check-prefix=RETURN
 // RUN: %clang_cc1 -E -triple i386 -dM -o - -fcf-protection=branch %s | FileCheck %s --check-prefix=BRANCH
 // RUN: %clang_cc1 -E -triple i386 -dM -o - -fcf-protection=full %s   | FileCheck %s --check-prefix=FULL
+// RUN: %clang_cc1 -E -triple=x86_64 -dM -o - -fcf-protection=none %s | FileCheck %s --check-prefix=NOTCET
 // RUN: not %clang_cc1 -emit-llvm-only -triple i386 -target-cpu pentium-mmx -fcf-protection=branch %s 2>&1 | FileCheck %s --check-prefix=NOCFPROT
+// RUN: %clang_cc1 -triple=x86_64 -o - -fcf-protection=return %s -emit-llvm | FileCheck %s --check-prefixes=CFPROTR,CFPROTNONE
+// RUN: %clang_cc1 -triple=x86_64 -o - -fcf-protection=branch %s -emit-llvm | FileCheck %s --check-prefixes=CFPROTB,CFPROTNONE
+// RUN: %clang_cc1 -triple=x86_64 -o - -fcf-protection=full %s -emit-llvm | FileCheck %s --check-prefixes=CFPROTR,CFPROTB,CFPROTNONE
+// RUN: %clang_cc1 -triple=x86_64 -o - -fcf-protection=none %s -emit-llvm | FileCheck %s --check-prefixes=CFPROTNONE
 
 // RETURN: #define __CET__ 2
 // BRANCH: #define __CET__ 1
 // FULL: #define __CET__ 3
-// CFPROT: !{i32 8, !"cf-protection-branch", i32 1}
-
+// NOTCET-NOT: #define __CET__
 // NOCFPROT: error: option 'cf-protection=branch' cannot be specified on this target
+// CFPROTR: !{i32 8, !"cf-protection-return", i32 1}
+// CFPROTB: !{i32 8, !"cf-protection-branch", i32 1}
+// CFPROTNONE-NOT: cf-protection-
 
 void foo() {}