[clang] [X86][Driver] Enable feature ndd for -mapxf (PR #78901)

[Shengchen Kan via cfe-commits]

================
@@ -803,10 +803,10 @@
 // RUN: %clang -target x86_64-unknown-unknown -march=x86-64 -mapx-features=ndd -x c -E -dM -o - %s | FileCheck --check-prefix=NDD %s
 // RUN: %clang -target x86_64-unknown-unknown -march=x86-64 -mapx-features=ccmp -x c -E -dM -o - %s | FileCheck --check-prefix=CCMP %s
 // RUN: %clang -target x86_64-unknown-unknown -march=x86-64 -mapx-features=cf -x c -E -dM -o - %s | FileCheck --check-prefix=CF %s
-// RUN: %clang -target x86_64-unknown-unknown -march=x86-64 -mapxf -x c -E -dM -o - %s | FileCheck --check-prefixes=EGPR,PUSH2POP2,PPX %s
+// RUN: %clang -target x86_64-unknown-unknown -march=x86-64 -mapxf -x c -E -dM -o - %s | FileCheck --check-prefixes=EGPR,PUSH2POP2,PPX,NDD %s
+// CCMP: #define __CCMP__ 1
+// CF: #define __CF__ 1
 // EGPR: #define __EGPR__ 1
+// NDD: #define __NDD__ 1
 // PPX: #define __PPX__ 1
 // PUSH2POP2: #define __PUSH2POP2__ 1
----------------
KanRobert wrote:

Line 803 checks for NDD, but it doesn't matter b/c it does not check other macros. The order for the macros matters only when we need to check several macros in one RUN line.

https://github.com/llvm/llvm-project/pull/78901