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1; This testcase tests that a worklist is being used, and that globals can be 2; removed if they are the subject of a constexpr and ConstantPointerRef3 4; RUN: opt < %s -passes=globaldce -S | FileCheck %s5 6; CHECK-NOT: global7 8@t0 = internal global [4 x i8] c"foo\00" ; <ptr> [#uses=1]9@t1 = internal global [4 x i8] c"bar\00" ; <ptr> [#uses=1]10@s1 = internal global [1 x ptr] [ ptr @t0 ] ; <ptr> [#uses=0]11@s2 = internal global [1 x ptr] [ ptr @t1 ] ; <ptr> [#uses=0]12@b = internal global ptr @a ; <ptr> [#uses=0]13@a = internal global i32 7 ; <ptr> [#uses=1]14 15