Merge pull request #2567 from natecook1000/nc-quiet-benchmark-warnings

Suppress warnings for unused results in benchmark tests

Author: lattner

benchmark/single-source/AngryPhonebook.swift

@@ -36,7 +36,7 @@ public func run_AngryPhonebook(_ N: Int) {
   for _ in 1...N {
     for firstname in words {
       for lastname in words {
-        (firstname.uppercased(), lastname.lowercased())
+        _ = (firstname.uppercased(), lastname.lowercased())
       }
     }
   }

benchmark/single-source/NSError.swift

@@ -30,7 +30,7 @@ class G : K {
 }
 
 func caller(_ x: P) throws {
-  try x.buzz()
+  _ = try x.buzz()
 }
 
 @inline(never)

benchmark/single-source/NSStringConversion.swift

@@ -17,6 +17,6 @@ import Foundation
 public func run_NSStringConversion(_ N: Int) {
 let test:NSString = NSString(cString: "test", encoding: NSASCIIStringEncoding)!
   for _ in 1...N * 10000 {
-    test as String
+    _ = test as String
   }
 }

benchmark/single-source/ProtocolDispatch.swift

@@ -18,7 +18,7 @@ public func run_ProtocolDispatch(_ N: Int) {
   let x = someProtocolFactory()
 
   for _ in 0...1000000 * N {
-    x.getValue()
+    _ = x.getValue()
   }
 }
 

benchmark/single-source/TypeFlood.swift

@@ -36,22 +36,22 @@ struct Some0<T> {
 
 @inline(never)
 func flood<T>(_ x: T) {
-  Some1<Some1<Some1<Some1<T>>>>() is Pingable
-  Some1<Some1<Some1<Some0<T>>>>() is Pingable
-  Some1<Some1<Some0<Some1<T>>>>() is Pingable
-  Some1<Some1<Some0<Some0<T>>>>() is Pingable
-  Some1<Some0<Some1<Some1<T>>>>() is Pingable
-  Some1<Some0<Some1<Some0<T>>>>() is Pingable
-  Some1<Some0<Some0<Some1<T>>>>() is Pingable
-  Some1<Some0<Some0<Some0<T>>>>() is Pingable
-  Some0<Some1<Some1<Some1<T>>>>() is Pingable
-  Some0<Some1<Some1<Some0<T>>>>() is Pingable
-  Some0<Some1<Some0<Some1<T>>>>() is Pingable
-  Some0<Some1<Some0<Some0<T>>>>() is Pingable
-  Some0<Some0<Some1<Some1<T>>>>() is Pingable
-  Some0<Some0<Some1<Some0<T>>>>() is Pingable
-  Some0<Some0<Some0<Some1<T>>>>() is Pingable
-  Some0<Some0<Some0<Some0<T>>>>() is Pingable
+  _ = Some1<Some1<Some1<Some1<T>>>>() is Pingable
+  _ = Some1<Some1<Some1<Some0<T>>>>() is Pingable
+  _ = Some1<Some1<Some0<Some1<T>>>>() is Pingable
+  _ = Some1<Some1<Some0<Some0<T>>>>() is Pingable
+  _ = Some1<Some0<Some1<Some1<T>>>>() is Pingable
+  _ = Some1<Some0<Some1<Some0<T>>>>() is Pingable
+  _ = Some1<Some0<Some0<Some1<T>>>>() is Pingable
+  _ = Some1<Some0<Some0<Some0<T>>>>() is Pingable
+  _ = Some0<Some1<Some1<Some1<T>>>>() is Pingable
+  _ = Some0<Some1<Some1<Some0<T>>>>() is Pingable
+  _ = Some0<Some1<Some0<Some1<T>>>>() is Pingable
+  _ = Some0<Some1<Some0<Some0<T>>>>() is Pingable
+  _ = Some0<Some0<Some1<Some1<T>>>>() is Pingable
+  _ = Some0<Some0<Some1<Some0<T>>>>() is Pingable
+  _ = Some0<Some0<Some0<Some1<T>>>>() is Pingable
+  _ = Some0<Some0<Some0<Some0<T>>>>() is Pingable
 }
 
 @inline(never)