xref: /llvm-project/llvm/test/Analysis/DependenceAnalysis/NonAffineExpr.ll (revision 46f9cddfd7e40998422d1e34a3f1193210ee2fb8)
1; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 5
2; RUN: opt < %s -disable-output "-passes=print<da>" -aa-pipeline=basic-aa 2>&1 \
3; RUN: | FileCheck %s
4
5target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n8:16:32-S64"
6target triple = "thumbv7--linux-gnueabi"
7
8define void @f(ptr %a, i32 %n, i1 %arg) align 2 {
9; CHECK-LABEL: 'f'
10; CHECK-NEXT:  Src: %t.2 = load ptr, ptr %a, align 4 --> Dst: %t.2 = load ptr, ptr %a, align 4
11; CHECK-NEXT:    da analyze - consistent input [S S]!
12; CHECK-NEXT:  Src: %t.2 = load ptr, ptr %a, align 4 --> Dst: %t.4 = load i32, ptr %t.3, align 4
13; CHECK-NEXT:    da analyze - confused!
14; CHECK-NEXT:  Src: %t.4 = load i32, ptr %t.3, align 4 --> Dst: %t.4 = load i32, ptr %t.3, align 4
15; CHECK-NEXT:    da analyze - input [* *]!
16;
17for.preheader:
18  %t.0 = ashr exact i32 %n, 3
19  br label %for.body.1
20
21for.body.1:
22  %i.1 = phi i32 [ %t.5, %for.inc ], [ 0, %for.preheader ]
23  %i.2 = phi i32 [ %i.5, %for.inc ], [ %t.0, %for.preheader ]
24  br i1 %arg, label %for.inc, label %for.body.2
25
26for.body.2:
27  %i.3 = phi i32 [ %t.1, %for.body.2 ], [ %i.1, %for.body.1 ]
28  %t.1 = add i32 %i.3, 1
29  %t.2 = load ptr, ptr %a, align 4
30  %t.3 = getelementptr inbounds i32, ptr %t.2, i32 %i.3
31  %t.4 = load i32, ptr %t.3, align 4
32  br i1 %arg, label %for.inc, label %for.body.2
33
34for.inc:
35  %i.4 = phi i32 [ %i.2, %for.body.1 ], [ %i.2, %for.body.2 ]
36  %t.5 = add i32 %i.1, %i.4
37  %i.5 = add i32 %i.2, -1
38  br i1 %arg, label %for.exit, label %for.body.1
39
40for.exit:
41  ret void
42}
43