1; RUN: opt < %s -passes=globalopt -S | FileCheck %s 2 3@G = internal global i32 17 ; <ptr> [#uses=3] 4; CHECK-NOT: @G 5 6define void @foo() { 7 %V = load i32, ptr @G ; <i32> [#uses=1] 8 store i32 %V, ptr @G 9 ret void 10; CHECK-LABEL: @foo( 11; CHECK-NEXT: ret void 12} 13 14define i32 @bar() { 15 %X = load i32, ptr @G ; <i32> [#uses=1] 16 ret i32 %X 17; CHECK-LABEL: @bar( 18; CHECK-NEXT: ret i32 17 19} 20 21@a = internal global ptr null, align 8 22; CHECK-NOT: @a 23 24; PR13968 25define void @qux() nounwind { 26 %g = getelementptr ptr, ptr @a, i32 1 27 %cmp = icmp ne ptr null, @a 28 %cmp2 = icmp eq ptr null, @a 29 %cmp3 = icmp eq ptr null, %g 30 store ptr inttoptr (i64 1 to ptr), ptr @a, align 8 31 %l = load ptr, ptr @a, align 8 32 ret void 33; CHECK-LABEL: @qux( 34; CHECK-NOT: store 35; CHECK-NOT: load 36} 37 38@addrspacecast_a = internal global ptr null 39 40define void @addrspacecast_user() { 41; CHECK-LABEL: @addrspacecast_user 42; CHECK-NOT: store 43; CHECK-NOT: load 44 %g = addrspacecast ptr @addrspacecast_a to ptr addrspace(1) 45 store ptr inttoptr (i64 1 to ptr), ptr @addrspacecast_a, align 8 46 %l = load ptr, ptr @addrspacecast_a, align 8 47 ret void 48} 49