[AArch64] Using new TargetParser in Clang

Using AArch64TargetParser in clang to avoid repetitive string parsing.

Use TargetParser to do ARCH/CPU/ArchExt parsing instead of local implementation.

Patch by Jojo Ma.

llvm-svn: 270688

1 files changed, 4 insertions, 8 deletions

diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index 4d06ebb724b..059dd62aea1 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -5665,14 +5665,10 @@ public:
   }
 
   bool setCPU(const std::string &Name) override {
-    bool CPUKnown = llvm::StringSwitch<bool>(Name)
-                        .Case("generic", true)
-                        .Cases("cortex-a53", "cortex-a57", "cortex-a72",
-                               "cortex-a35", "exynos-m1", true)
-                        .Case("cyclone", true)
-                        .Case("kryo", true)
-                        .Default(false);
-    return CPUKnown;
+    if (Name == "generic" || llvm::AArch64::parseCPUArch(Name) != llvm::ARM::AK_INVALID)
+      return true;
+
+    return false;
   }
 
   void getTargetDefines(const LangOptions &Opts,