Optimizer: convert the FunctionUsesDumper pass to a test

Author: eeckstein

SwiftCompilerSources/Sources/Optimizer/DataStructures/FunctionUses.swift

@@ -162,3 +162,22 @@ struct FunctionUses {
     uses[function, default: FirstUse(of: function)].hasUnknownUses = true
   }
 }
+
+//===--------------------------------------------------------------------===//
+//                              Tests
+//===--------------------------------------------------------------------===//
+
+let functionUsesTest = ModuleTest("function-uses") {
+    (context: ModulePassContext) in
+
+  var functionUses = FunctionUses()
+  functionUses.collect(context: context)
+
+  for function in context.functions {
+    let uses = functionUses.getUses(of: function)
+
+    print("Uses of \(function.name)")
+    print(uses)
+    print("End function \(function.name)\n")
+  }
+}

SwiftCompilerSources/Sources/Optimizer/PassManager/PassRegistration.swift

@@ -148,7 +148,6 @@ private func registerSwiftPasses() {
   registerForSILCombine(EndCOWMutationAddrInst.self, { run(EndCOWMutationAddrInst.self, $0) })
 
   // Test passes
-  registerPass(functionUsesDumper, { functionUsesDumper.run($0) })
   registerPass(silPrinterPass, { silPrinterPass.run($0) })
   registerPass(rangeDumper, { rangeDumper.run($0) })
   registerPass(testInstructionIteration, { testInstructionIteration.run($0) })

SwiftCompilerSources/Sources/Optimizer/TestPasses/CMakeLists.txt

@@ -7,7 +7,6 @@
 # See http://swift.org/CONTRIBUTORS.txt for Swift project authors
 
 swift_compiler_sources(Optimizer
-  FunctionUsesDumper.swift
   SILPrinter.swift
   RangeDumper.swift
   UpdateBorrowedFrom.swift

SwiftCompilerSources/Sources/Optimizer/TestPasses/FunctionUsesDumper.swift

@@ -71,6 +71,8 @@ public func registerOptimizerTests() {
     memoryEffectsTest
   )
 
+  registerModuleTest(functionUsesTest, { functionUsesTest.pass.run($0) })
+
   // Finally register the thunk they all call through.
   registerFunctionTestThunk(functionTestThunk)
 }

…s/Optimizer/Utilities/FunctionTest.swift …s/Sources/Optimizer/Utilities/Test.swiftSwiftCompilerSources/Sources/Optimizer/Utilities/FunctionTest.swift renamed to SwiftCompilerSources/Sources/Optimizer/Utilities/Test.swift SwiftCompilerSources/Sources/Optimizer/Utilities/FunctionTest.swift renamed to SwiftCompilerSources/Sources/Optimizer/Utilities/Test.swift

@@ -158,7 +158,7 @@ MODULE_PASS(MandatoryAllocBoxToStack, "mandatory-allocbox-to-stack",
      "Mandatory stack promotion of box objects")
 MODULE_PASS(AsyncDemotion, "async-demotion",
      "Convert async functions to be synchronous")
-MODULE_PASS(FunctionUsesDumper, "dump-function-uses",
+MODULE_PASS(FunctionUsesTestPass, "test-function-uses",
      "Dump the results of FunctionUses")
 MODULE_PASS(MandatoryPerformanceOptimizations, "mandatory-performance-optimizations",
      "Performs optimizations for performance-annotated functions")

include/swift/SILOptimizer/PassManager/Passes.def

@@ -1,4 +1,4 @@
-// RUN: %target-sil-opt -wmo -dump-function-uses %s -o /dev/null | %FileCheck %s
+// RUN: %target-sil-opt -wmo -test-function-uses %s -o /dev/null | %FileCheck %s
 
 // REQUIRES: swift_in_compiler