[arm64] Implement Float(32|64)(Min|Max) using fcsel.

src/compiler/instruction-codes.h

Index: src/compiler/instruction-codes.h
diff --git a/src/compiler/instruction-codes.h b/src/compiler/instruction-codes.h
index 88471e6c04dd6efabf1f9e9adff3d19755c9adfc..2a3732e92429f66e1955769503b328b30edaabd5 100644
--- a/src/compiler/instruction-codes.h
+++ b/src/compiler/instruction-codes.h
@@ -98,7 +98,12 @@ enum AddressingMode {
 std::ostream& operator<<(std::ostream& os, const AddressingMode& am);
 
 // The mode of the flags continuation (see below).
-enum FlagsMode { kFlags_none = 0, kFlags_branch = 1, kFlags_set = 2 };
+enum FlagsMode {
+  kFlags_none = 0,
+  kFlags_branch = 1,
+  kFlags_set = 2,
+  kFlags_select = 3
+};
 
 std::ostream& operator<<(std::ostream& os, const FlagsMode& fm);