1; RUN: opt < %s -globalopt -S | FileCheck %s 2 3@c = global i8 42 4 5@i = internal global i8 42 6; CHECK: @ia = internal global i8 42 7@ia = internal alias i8, i8* @i 8 9@llvm.used = appending global [3 x i8*] [i8* bitcast (void ()* @fa to i8*), i8* bitcast (void ()* @f to i8*), i8* @ca], section "llvm.metadata" 10; CHECK-DAG: @llvm.used = appending global [3 x i8*] [i8* @ca, i8* bitcast (void ()* @f to i8*), i8* bitcast (void ()* @fa to i8*)], section "llvm.metadata" 11 12@llvm.compiler.used = appending global [4 x i8*] [i8* bitcast (void ()* @fa3 to i8*), i8* bitcast (void ()* @fa to i8*), i8* @ia, i8* @i], section "llvm.metadata" 13; CHECK-DAG: @llvm.compiler.used = appending global [2 x i8*] [i8* bitcast (void ()* @fa3 to i8*), i8* @ia], section "llvm.metadata" 14 15@sameAsUsed = global [3 x i8*] [i8* bitcast (void ()* @fa to i8*), i8* bitcast (void ()* @f to i8*), i8* @ca] 16; CHECK-DAG: @sameAsUsed = local_unnamed_addr global [3 x i8*] [i8* bitcast (void ()* @f to i8*), i8* bitcast (void ()* @f to i8*), i8* @c] 17 18@other = global i32* bitcast (void ()* @fa to i32*) 19; CHECK-DAG: @other = local_unnamed_addr global i32* bitcast (void ()* @f to i32*) 20 21@fa = internal alias void (), void ()* @f 22; CHECK: @fa = internal alias void (), void ()* @f 23 24@fa2 = internal alias void (), void ()* @f 25; CHECK-NOT: @fa2 26 27@fa3 = internal alias void (), void ()* @f 28; CHECK: @fa3 29 30@ca = internal alias i8, i8* @c 31; CHECK: @ca = internal alias i8, i8* @c 32 33define void @f() { 34 ret void 35} 36 37define i8* @g() { 38 ret i8* bitcast (void ()* @fa to i8*); 39} 40 41define i8* @g2() { 42 ret i8* bitcast (void ()* @fa2 to i8*); 43} 44 45define i8* @h() { 46 ret i8* @ca 47} 48 49; Check that GlobalOpt doesn't try to resolve aliases with GEP operands. 50 51%struct.S = type { i32, i32, i32 } 52@s = global %struct.S { i32 1, i32 2, i32 3 }, align 4 53 54@alias1 = alias i32, i32* getelementptr inbounds (%struct.S, %struct.S* @s, i64 0, i32 1) 55@alias2 = alias i32, i32* getelementptr inbounds (%struct.S, %struct.S* @s, i64 0, i32 2) 56 57; CHECK: load i32, i32* @alias1, align 4 58; CHECK: load i32, i32* @alias2, align 4 59 60define i32 @foo1() { 61entry: 62 %0 = load i32, i32* @alias1, align 4 63 %1 = load i32, i32* @alias2, align 4 64 %add = add nsw i32 %1, %0 65 ret i32 %add 66} 67