clang/test/Misc/target-parser.c - third_party/llvm-project - Git at Google

 // RUN: not %clang_cc1 -triple armv7--- -target-cpu not-a-cpu -fsyntax-only %s 2>&1 | FileCheck %s
 // CHECK: error: unknown target CPU 'not-a-cpu'
	// RUN: not %clang_cc1 -triple armv7--- -target-cpu not-a-cpu -fsyntax-only %s 2>&1 \| FileCheck %s
	// CHECK: error: unknown target CPU 'not-a-cpu'