1 ; RUN: opt < %s -analyze -scalar-evolution | FileCheck %s
3 ; CHECK: %tmp9 = shl i64 %tmp8, 33
4 ; CHECK-NEXT: --> {{.*}} Exits: (-8589934592 + (8589934592 * (zext i32 %arg2 to i64)))
5 ; CHECK: %tmp10 = ashr exact i64 %tmp9, 32
6 ; CHECK-NEXT: --> {{.*}} Exits: (sext i32 (-2 + (2 * %arg2)) to i64)
7 ; CHECK: %tmp11 = getelementptr inbounds i32, i32* %arg, i64 %tmp10
8 ; CHECK-NEXT: --> {{.*}} Exits: ((4 * (sext i32 (-2 + (2 * %arg2)) to i64))<nsw> + %arg)
9 ; CHECK: %tmp14 = or i64 %tmp10, 1
10 ; CHECK-NEXT: --> {{.*}} Exits: (1 + (sext i32 (-2 + (2 * %arg2)) to i64))<nuw><nsw>
11 ; CHECK: %tmp15 = getelementptr inbounds i32, i32* %arg, i64 %tmp14
12 ; CHECK-NEXT: --> {{.*}} Exits: (4 + (4 * (sext i32 (-2 + (2 * %arg2)) to i64))<nsw> + %arg)
13 ; CHECK:Loop %bb7: backedge-taken count is (-1 + (zext i32 %arg2 to i64))<nsw>
14 ; CHECK-NEXT:Loop %bb7: max backedge-taken count is 4294967294
15 ; CHECK-NEXT:Loop %bb7: Predicated backedge-taken count is (-1 + (zext i32 %arg2 to i64))<nsw>
17 define void @foo(i32* nocapture %arg, i32 %arg1, i32 %arg2) {
19 %tmp = icmp sgt i32 %arg2, 0
20 br i1 %tmp, label %bb3, label %bb6
23 %tmp4 = zext i32 %arg2 to i64
29 bb6: ; preds = %bb5, %bb
32 bb7: ; preds = %bb7, %bb3
33 %tmp8 = phi i64 [ %tmp18, %bb7 ], [ 0, %bb3 ]
34 %tmp9 = shl i64 %tmp8, 33
35 %tmp10 = ashr exact i64 %tmp9, 32
36 %tmp11 = getelementptr inbounds i32, i32* %arg, i64 %tmp10
37 %tmp12 = load i32, i32* %tmp11, align 4
38 %tmp13 = sub nsw i32 %tmp12, %arg1
39 store i32 %tmp13, i32* %tmp11, align 4
40 %tmp14 = or i64 %tmp10, 1
41 %tmp15 = getelementptr inbounds i32, i32* %arg, i64 %tmp14
42 %tmp16 = load i32, i32* %tmp15, align 4
43 %tmp17 = mul nsw i32 %tmp16, %arg1
44 store i32 %tmp17, i32* %tmp15, align 4
45 %tmp18 = add nuw nsw i64 %tmp8, 1
46 %tmp19 = icmp eq i64 %tmp18, %tmp4
47 br i1 %tmp19, label %bb5, label %bb7
50 ; CHECK: %t10 = ashr exact i128 %t9, 1
51 ; CHECK-NEXT: --> {{.*}} Exits: (sext i127 (-633825300114114700748351602688 + (633825300114114700748351602688 * (zext i32 %arg5 to i127))) to i128)
52 ; CHECK: %t14 = or i128 %t10, 1
53 ; CHECK-NEXT: --> {{.*}} Exits: (1 + (sext i127 (-633825300114114700748351602688 + (633825300114114700748351602688 * (zext i32 %arg5 to i127))) to i128))<nuw><nsw>
54 ; CHECK: Loop %bb7: backedge-taken count is (-1 + (zext i32 %arg5 to i128))<nsw>
55 ; CHECK-NEXT: Loop %bb7: max backedge-taken count is 4294967294
56 ; CHECK-NEXT: Loop %bb7: Predicated backedge-taken count is (-1 + (zext i32 %arg5 to i128))<nsw>
58 define void @goo(i32* nocapture %arg3, i32 %arg4, i32 %arg5) {
60 %t = icmp sgt i32 %arg5, 0
61 br i1 %t, label %bb3, label %bb6
64 %t4 = zext i32 %arg5 to i128
70 bb6: ; preds = %bb5, %bb
73 bb7: ; preds = %bb7, %bb3
74 %t8 = phi i128 [ %t18, %bb7 ], [ 0, %bb3 ]
75 %t9 = shl i128 %t8, 100
76 %t10 = ashr exact i128 %t9, 1
77 %t11 = getelementptr inbounds i32, i32* %arg3, i128 %t10
78 %t12 = load i32, i32* %t11, align 4
79 %t13 = sub nsw i32 %t12, %arg4
80 store i32 %t13, i32* %t11, align 4
81 %t14 = or i128 %t10, 1
82 %t15 = getelementptr inbounds i32, i32* %arg3, i128 %t14
83 %t16 = load i32, i32* %t15, align 4
84 %t17 = mul nsw i32 %t16, %arg4
85 store i32 %t17, i32* %t15, align 4
86 %t18 = add nuw nsw i128 %t8, 1
87 %t19 = icmp eq i128 %t18, %t4
88 br i1 %t19, label %bb5, label %bb7