Add frintp instruction.

src/arm64/macro-assembler-arm64-inl.h

Index: src/arm64/macro-assembler-arm64-inl.h
diff --git a/src/arm64/macro-assembler-arm64-inl.h b/src/arm64/macro-assembler-arm64-inl.h
index 23767e48b371c78d5cbdd472c8f1cc5cbe5d35ba..22c49efbc350b7d6b5266f860975e5d7adb4b29f 100644
--- a/src/arm64/macro-assembler-arm64-inl.h
+++ b/src/arm64/macro-assembler-arm64-inl.h
@@ -825,6 +825,12 @@ void MacroAssembler::Frintn(const FPRegister& fd, const FPRegister& fn) {
 }
 
 
+void MacroAssembler::Frintp(const FPRegister& fd, const FPRegister& fn) {
+  DCHECK(allow_macro_instructions_);
+  frintp(fd, fn);
+}
+
+
 void MacroAssembler::Frintz(const FPRegister& fd, const FPRegister& fn) {
   DCHECK(allow_macro_instructions_);
   frintz(fd, fn);