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 -globaldce -S | FileCheck %s 5 6 ; CHECK-NOT: foo 7 ;; Unused, kills %foo 8 @b = internal global i32 ()* @foo ; <i32 ()**> [#uses=0] 9 10 ;; Should die when function %foo is killed 11 @foo.upgrd.1 = internal global i32 7 ; <i32*> [#uses=1] 12 13 ;; dies when %b dies. 14 define internal i32 @foo() { 15 %ret = load i32, i32* @foo.upgrd.1 ; <i32> [#uses=1] 16 ret i32 %ret 17 } 18 19
