1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
2 ; RUN: opt -aa-pipeline=basic-aa -passes=loop-distribute -enable-loop-distribute -verify-loop-info -verify-dom-info -S %s | FileCheck %s
4 @B = common global ptr null, align 8
5 @A = common global ptr null, align 8
6 @C = common global ptr null, align 8
7 @D = common global ptr null, align 8
8 @E = common global ptr null, align 8
11 ; CHECK-LABEL: define void @f() {
12 ; CHECK-NEXT: [[ENTRY:.*]]:
13 ; CHECK-NEXT: [[A:%.*]] = load ptr, ptr @A, align 8
14 ; CHECK-NEXT: [[B:%.*]] = load ptr, ptr @B, align 8
15 ; CHECK-NEXT: [[C:%.*]] = load ptr, ptr @C, align 8
16 ; CHECK-NEXT: [[D:%.*]] = load ptr, ptr @D, align 8
17 ; CHECK-NEXT: [[E:%.*]] = load ptr, ptr @E, align 8
18 ; CHECK-NEXT: br label %[[FOR_BODY:.*]]
19 ; CHECK: [[FOR_BODY]]:
20 ; CHECK-NEXT: [[IND:%.*]] = phi i64 [ 0, %[[ENTRY]] ], [ [[ADD:%.*]], %[[LATCH:.*]] ]
21 ; CHECK-NEXT: [[ARRAYIDXA:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[IND]]
22 ; CHECK-NEXT: [[LOADA:%.*]] = load i32, ptr [[ARRAYIDXA]], align 4
23 ; CHECK-NEXT: [[ARRAYIDXB:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[IND]]
24 ; CHECK-NEXT: [[LOADB:%.*]] = load i32, ptr [[ARRAYIDXB]], align 4
25 ; CHECK-NEXT: [[UNCOUNTABLE_C:%.*]] = icmp eq i32 [[LOADB]], 10
26 ; CHECK-NEXT: br i1 [[UNCOUNTABLE_C]], label %[[FOR_END:.*]], label %[[LATCH]]
28 ; CHECK-NEXT: [[MULA:%.*]] = mul i32 [[LOADB]], [[LOADA]]
29 ; CHECK-NEXT: [[ADD]] = add nuw nsw i64 [[IND]], 1
30 ; CHECK-NEXT: [[ARRAYIDXA_PLUS_4:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[ADD]]
31 ; CHECK-NEXT: store i32 [[MULA]], ptr [[ARRAYIDXA_PLUS_4]], align 4
32 ; CHECK-NEXT: [[ARRAYIDXD:%.*]] = getelementptr inbounds i32, ptr [[D]], i64 [[IND]]
33 ; CHECK-NEXT: [[LOADD:%.*]] = load i32, ptr [[ARRAYIDXD]], align 4
34 ; CHECK-NEXT: [[ARRAYIDXE:%.*]] = getelementptr inbounds i32, ptr [[E]], i64 [[IND]]
35 ; CHECK-NEXT: [[LOADE:%.*]] = load i32, ptr [[ARRAYIDXE]], align 4
36 ; CHECK-NEXT: [[MULC:%.*]] = mul i32 [[LOADD]], [[LOADE]]
37 ; CHECK-NEXT: [[ARRAYIDXC:%.*]] = getelementptr inbounds i32, ptr [[C]], i64 [[IND]]
38 ; CHECK-NEXT: store i32 [[MULC]], ptr [[ARRAYIDXC]], align 4
39 ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[ADD]], 20
40 ; CHECK-NEXT: br i1 [[EXITCOND]], label %[[FOR_END]], label %[[FOR_BODY]]
42 ; CHECK-NEXT: ret void
45 %a = load ptr, ptr @A, align 8
46 %b = load ptr, ptr @B, align 8
47 %c = load ptr, ptr @C, align 8
48 %d = load ptr, ptr @D, align 8
49 %e = load ptr, ptr @E, align 8
53 %ind = phi i64 [ 0, %entry ], [ %add, %latch ]
55 %arrayidxA = getelementptr inbounds i32, ptr %a, i64 %ind
56 %loadA = load i32, ptr %arrayidxA, align 4
58 %arrayidxB = getelementptr inbounds i32, ptr %b, i64 %ind
59 %loadB = load i32, ptr %arrayidxB, align 4
60 %uncountable.c = icmp eq i32 %loadB, 10
61 br i1 %uncountable.c, label %for.end, label %latch
64 %mulA = mul i32 %loadB, %loadA
66 %add = add nuw nsw i64 %ind, 1
67 %arrayidxA_plus_4 = getelementptr inbounds i32, ptr %a, i64 %add
68 store i32 %mulA, ptr %arrayidxA_plus_4, align 4
70 %arrayidxD = getelementptr inbounds i32, ptr %d, i64 %ind
71 %loadD = load i32, ptr %arrayidxD, align 4
73 %arrayidxE = getelementptr inbounds i32, ptr %e, i64 %ind
74 %loadE = load i32, ptr %arrayidxE, align 4
76 %mulC = mul i32 %loadD, %loadE
78 %arrayidxC = getelementptr inbounds i32, ptr %c, i64 %ind
79 store i32 %mulC, ptr %arrayidxC, align 4
81 %exitcond = icmp eq i64 %add, 20
82 br i1 %exitcond, label %for.end, label %for.body
84 for.end: ; preds = %for.body
88 attributes #0 = { nounwind readnone convergent }
89 attributes #1 = { nounwind convergent }
91 !0 = distinct !{!0, !1}
92 !1 = !{!"llvm.loop.distribute.enable", i1 true}