[Mips] Support -mmicromips / -mno-micromips command line options.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179489 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Preprocessor/init.c b/test/Preprocessor/init.c
index 8ab1439..c1519a8 100644
--- a/test/Preprocessor/init.c
+++ b/test/Preprocessor/init.c
@@ -1168,6 +1168,16 @@
 // RUN:   | FileCheck -check-prefix NOMIPS16 %s
 // NOMIPS16-NOT:#define __mips16 1
 //
+// RUN: %clang_cc1 -target-feature +micromips \
+// RUN:   -E -dM -triple=mips-none-none < /dev/null \
+// RUN:   | FileCheck -check-prefix MICROMIPS %s
+// MICROMIPS:#define __mips_micromips 1
+//
+// RUN: %clang_cc1 -target-feature -micromips \
+// RUN:   -E -dM -triple=mips-none-none < /dev/null \
+// RUN:   | FileCheck -check-prefix NOMICROMIPS %s
+// NOMICROMIPS-NOT:#define __mips_micromips 1
+//
 // RUN: %clang_cc1 -target-feature +dsp \
 // RUN:   -E -dM -triple=mips-none-none < /dev/null \
 // RUN:   | FileCheck -check-prefix MIPS-DSP %s