ARM: define a macro for the FPv5 FPU in ARM mode.

FPv5 is in Cortex-M7 and the 64-bit CPUs when running in 32-bit mode. The name
is from the Cortex-M7 TRM.

llvm-svn: 290268
diff --git a/clang/test/Preprocessor/arm-target-features.c b/clang/test/Preprocessor/arm-target-features.c
index 1a27d5b..f45c5ba 100644
--- a/clang/test/Preprocessor/arm-target-features.c
+++ b/clang/test/Preprocessor/arm-target-features.c
@@ -389,6 +389,7 @@
 // M7-THUMB:#define __ARM_ARCH_EXT_IDIV__ 1
 // M7-THUMB:#define __ARM_FEATURE_DSP 1
 // M7-THUMB:#define __ARM_FP 0xE
+// M7-THUMB:#define __ARM_FPV5__ 1
 
 // Test whether predefines are as expected when targeting krait.
 // RUN: %clang -target armv7 -mcpu=krait -x c -E -dM %s -o - | FileCheck -match-full-lines --check-prefix=KRAIT %s