Some places that could using TargetParser in LLVM. NFC.

llvm-svn: 278888
diff --git a/llvm/lib/Target/ARM/ARMSubtarget.cpp b/llvm/lib/Target/ARM/ARMSubtarget.cpp
index 561f80a..b6e2b3a 100644
--- a/llvm/lib/Target/ARM/ARMSubtarget.cpp
+++ b/llvm/lib/Target/ARM/ARMSubtarget.cpp
@@ -31,6 +31,7 @@
 #include "llvm/Target/TargetInstrInfo.h"
 #include "llvm/Target/TargetOptions.h"
 #include "llvm/Target/TargetRegisterInfo.h"
+#include "llvm/Support/TargetParser.h"
 
 using namespace llvm;
 
@@ -117,10 +118,11 @@
 
     if (isTargetDarwin()) {
       StringRef ArchName = TargetTriple.getArchName();
-      if (ArchName.endswith("v7s"))
+      unsigned ArchKind = llvm::ARM::parseArch(ArchName);
+      if (ArchKind == llvm::ARM::AK_ARMV7S)
         // Default to the Swift CPU when targeting armv7s/thumbv7s.
         CPUString = "swift";
-      else if (ArchName.endswith("v7k"))
+      else if (ArchKind == llvm::ARM::AK_ARMV7K)
         // Default to the Cortex-a7 CPU when targeting armv7k/thumbv7k.
         // ARMv7k does not use SjLj exception handling.
         CPUString = "cortex-a7";
diff --git a/llvm/lib/Target/ARM/ARMTargetMachine.cpp b/llvm/lib/Target/ARM/ARMTargetMachine.cpp
index 066587a..4b24af8 100644
--- a/llvm/lib/Target/ARM/ARMTargetMachine.cpp
+++ b/llvm/lib/Target/ARM/ARMTargetMachine.cpp
@@ -23,6 +23,7 @@
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/FormattedStream.h"
 #include "llvm/Support/TargetRegistry.h"
+#include "llvm/Support/TargetParser.h"
 #include "llvm/Target/TargetOptions.h"
 #include "llvm/Transforms/Scalar.h"
 using namespace llvm;
@@ -84,11 +85,13 @@
   ARMBaseTargetMachine::ARMABI TargetABI =
       ARMBaseTargetMachine::ARM_ABI_UNKNOWN;
 
+  unsigned ArchKind = llvm::ARM::parseCPUArch(CPU);
+  StringRef ArchName = llvm::ARM::getArchName(ArchKind);
   // FIXME: This is duplicated code from the front end and should be unified.
   if (TT.isOSBinFormatMachO()) {
     if (TT.getEnvironment() == llvm::Triple::EABI ||
         (TT.getOS() == llvm::Triple::UnknownOS && TT.isOSBinFormatMachO()) ||
-        CPU.startswith("cortex-m")) {
+        llvm::ARM::parseArchProfile(ArchName) == llvm::ARM::PK_M) {
       TargetABI = ARMBaseTargetMachine::ARM_ABI_AAPCS;
     } else if (TT.isWatchABI()) {
       TargetABI = ARMBaseTargetMachine::ARM_ABI_AAPCS16;