[AArch64] Fix D19098 fallout.

The intrinsic is now called llvm.thread.pointer, not
llvm.aarch64.thread.pointer.  Also, the code handling it in CGBuiltin.cpp
is dead - it's already covered by GCCBuiltin.  Remove it.

Differential Revision: http://reviews.llvm.org/D19099

llvm-svn: 266817

clang/lib/CodeGen/CGBuiltin.cpp

@@ -4647,11 +4647,6 @@ Value *CodeGenFunction::EmitAArch64BuiltinExpr(unsigned BuiltinID,
     return Builder.CreateCall(F);
   }
 
-  if (BuiltinID == AArch64::BI__builtin_thread_pointer) {
-    Function *F = CGM.getIntrinsic(Intrinsic::aarch64_thread_pointer);
-    return Builder.CreateCall(F);
-  }
-
   // CRC32
   Intrinsic::ID CRCIntrinsicID = Intrinsic::not_intrinsic;
   switch (BuiltinID) {

clang/test/CodeGen/builtins-arm64.c

@@ -7,7 +7,7 @@ void f0(void *a, void *b) {
 
 void *tp (void) {
   return __builtin_thread_pointer ();
-// CHECK: call {{.*}} @llvm.aarch64.thread.pointer()
+// CHECK: call {{.*}} @llvm.thread.pointer()
 }
 
 // CHECK: call {{.*}} @llvm.aarch64.rbit.i32(i32 %a)