| Eric Christopher | cee313d | 2019-04-17 04:52:47 +0000 | [diff] [blame] | 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 | |
| 33 | define void @f() { |
| 34 | ret void |
| 35 | } |
| 36 | |
| 37 | define i8* @g() { |
| 38 | ret i8* bitcast (void ()* @fa to i8*); |
| 39 | } |
| 40 | |
| 41 | define i8* @g2() { |
| 42 | ret i8* bitcast (void ()* @fa2 to i8*); |
| 43 | } |
| 44 | |
| 45 | define 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 | |
| 60 | define i32 @foo1() { |
| 61 | entry: |
| 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 | } |