Merge pull request #25966 from jimingham/master

Don't emit the FORCE_LOAD symbols when the compiler is running

Author: jimingham

lib/IRGen/IRGenModule.cpp

@@ -1009,6 +1009,12 @@ llvm::SmallString<32> getTargetDependentLibraryOption(const llvm::Triple &T,
 void IRGenModule::addLinkLibrary(const LinkLibrary &linkLib) {
   llvm::LLVMContext &ctx = Module.getContext();
 
+  // The debugger gets the autolink information directly from
+  // the LinkLibraries of the module, so there's no reason to
+  // emit it into the IR of debugger expressions.
+  if (Context.LangOpts.DebuggerSupport)
+    return;
+  
   switch (linkLib.getKind()) {
   case LibraryKind::Library: {
     llvm::SmallString<32> opt =

test/Serialization/autolinking.swift

@@ -15,6 +15,9 @@
 // RUN: %FileCheck %s < %t/force-load.txt
 // RUN: %FileCheck -check-prefix FORCE-LOAD-CLIENT -check-prefix FORCE-LOAD-CLIENT-%target-object-format %s < %t/force-load.txt
 
+// RUN: %target-swift-frontend -runtime-compatibility-version none -emit-ir -debugger-support %s -I %t > %t/force-load.txt
+// RUN: %FileCheck -check-prefix NO-FORCE-LOAD-CLIENT %s < %t/force-load.txt
+
 // RUN: %target-swift-frontend -disable-autolinking-runtime-compatibility-dynamic-replacements -runtime-compatibility-version none -emit-ir -parse-stdlib -module-name someModule -module-link-name module %S/../Inputs/empty.swift | %FileCheck --check-prefix=NO-FORCE-LOAD %s
 // RUN: %target-swift-frontend -runtime-compatibility-version none -emit-ir -parse-stdlib -module-name someModule -module-link-name module %S/../Inputs/empty.swift -autolink-force-load | %FileCheck --check-prefix=FORCE-LOAD %s
 // RUN: %target-swift-frontend -runtime-compatibility-version none -emit-ir -parse-stdlib -module-name someModule -module-link-name 0module %S/../Inputs/empty.swift -autolink-force-load | %FileCheck --check-prefix=FORCE-LOAD-HEX %s
@@ -35,13 +38,16 @@ import someModule
 // FRAMEWORK-DAG: !{{[0-9]+}} = !{!"-framework", !"someModule"}
 
 // NO-FORCE-LOAD-NOT: FORCE_LOAD
+// NO-FORCE-LOAD-NOT -lmodule
+// NO-FORCE-LOAD-NOT -lmagic
 // FORCE-LOAD: define{{( dllexport)?}} void @"_swift_FORCE_LOAD_$_module"() {
 // FORCE-LOAD:   ret void
 // FORCE-LOAD: }
 // FORCE-LOAD-HEX: define{{( dllexport)?}} void @"_swift_FORCE_LOAD_$306d6f64756c65"() {
 // FORCE-LOAD-HEX:   ret void
 // FORCE-LOAD-HEX: }
 
+// NO-FORCE-LOAD-CLIENT-NOT: FORCE_LOAD
 // FORCE-LOAD-CLIENT: @"_swift_FORCE_LOAD_$_module_$_autolinking" = weak_odr hidden constant void ()* @"_swift_FORCE_LOAD_$_module"
 // FORCE-LOAD-CLIENT: @llvm.used = appending global [{{[0-9]+}} x i8*] [
 // FORCE-LOAD-CLIENT: i8* bitcast (void ()** @"_swift_FORCE_LOAD_$_module_$_autolinking" to i8*)