Imported Upstream version 5.18.0.246

Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833

external/llvm/test/Other/extract-linkonce.ll

@@ -0,0 +1,24 @@
+; RUN: llvm-extract -func foo -S < %s | FileCheck %s
+; RUN: llvm-extract -delete -func foo -S < %s | FileCheck --check-prefix=DELETE %s
+
+; Test that linkonce definitions are mapped to weak so that they are not
+; dropped.
+
+; CHECK:      @bar = external global i32
+; CHECK:      define weak i32* @foo() {
+; CHECK-NEXT:  ret i32* @bar
+; CHECK-NEXT: }
+
+; DELETE: @bar = weak global i32 42
+; DELETE: declare i32* @foo()
+
+@bar = linkonce global i32 42
+
+define linkonce i32* @foo() {
+  ret i32* @bar
+}
+
+define void @g() {
+  call i32* @foo()
+  ret void
+}