1; Make sure that functions are removed successfully if they are referred to by 2; a global that is dead. Make sure any globals they refer to die as well. 3 4; RUN: opt < %s -passes=globaldce -S | FileCheck %s 5 6; CHECK-NOT: foo 7;; Unused, kills %foo 8@b = internal global ptr @foo ; <ptr> [#uses=0] 9 10;; Should die when function %foo is killed 11@foo.upgrd.1 = internal global i32 7 ; <ptr> [#uses=1] 12 13 ;; dies when %b dies. 14define internal i32 @foo() { 15 %ret = load i32, ptr @foo.upgrd.1 ; <i32> [#uses=1] 16 ret i32 %ret 17} 18 19