1 ; RUN: opt %loadPolly -polly-use-runtime-alias-checks=false -pass-remarks-missed="polly-detect" -polly-detect-track-failures -polly-detect -analyze < %s 2>&1| FileCheck %s
3 ;void f(int A[], int B[]) {
4 ; for (int i=0; i<42; i++)
8 ; CHECK: remark: ReportAlias-01.c:2:8: The following errors keep this region from being a Scop.
9 ; CHECK: remark: ReportAlias-01.c:3:5: Accesses to the arrays "B", "A" may access the same memory.
10 ; CHECK: remark: ReportAlias-01.c:3:5: Invalid Scop candidate ends here.
12 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
14 define void @f(i32* %A, i32* %B) !dbg !4 {
18 entry.split: ; preds = %entry
19 tail call void @llvm.dbg.value(metadata i32* %A, i64 0, metadata !13, metadata !DIExpression()), !dbg !14
20 tail call void @llvm.dbg.value(metadata i32* %B, i64 0, metadata !15, metadata !DIExpression()), !dbg !16
21 tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !18, metadata !DIExpression()), !dbg !20
22 br label %for.body, !dbg !21
24 for.body: ; preds = %entry.split, %for.body
25 %indvar = phi i64 [ 0, %entry.split ], [ %indvar.next, %for.body ]
26 %arrayidx = getelementptr i32, i32* %B, i64 %indvar, !dbg !22
27 %arrayidx2 = getelementptr i32, i32* %A, i64 %indvar, !dbg !22
28 %0 = load i32, i32* %arrayidx, align 4, !dbg !22
29 store i32 %0, i32* %arrayidx2, align 4, !dbg !22
30 tail call void @llvm.dbg.value(metadata !{null}, i64 0, metadata !18, metadata !DIExpression()), !dbg !20
31 %indvar.next = add i64 %indvar, 1, !dbg !21
32 %exitcond = icmp ne i64 %indvar.next, 42, !dbg !21
33 br i1 %exitcond, label %for.body, label %for.end, !dbg !21
35 for.end: ; preds = %for.body
39 declare void @llvm.dbg.declare(metadata, metadata, metadata)
40 declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
43 !llvm.module.flags = !{!10, !11}
46 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.6.0 ", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
47 !1 = !DIFile(filename: "ReportAlias-01.c", directory: "test/ScopDetectionDiagnostic/")
49 !4 = distinct !DISubprogram(name: "f", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, variables: !2)
50 !5 = !DIFile(filename: "ReportAlias-01.c", directory: "test/ScopDetectionDiagnostic/")
51 !6 = !DISubroutineType(types: !7)
53 !8 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !9)
54 !9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
55 !10 = !{i32 2, !"Dwarf Version", i32 4}
56 !11 = !{i32 2, !"Debug Info Version", i32 3}
57 !12 = !{!"clang version 3.6.0 "}
58 !13 = !DILocalVariable(name: "A", line: 1, arg: 1, scope: !4, file: !5, type: !8)
59 !14 = !DILocation(line: 1, column: 12, scope: !4)
60 !15 = !DILocalVariable(name: "B", line: 1, arg: 2, scope: !4, file: !5, type: !8)
61 !16 = !DILocation(line: 1, column: 21, scope: !4)
63 !18 = !DILocalVariable(name: "i", line: 2, scope: !19, file: !5, type: !9)
64 !19 = distinct !DILexicalBlock(line: 2, column: 3, file: !1, scope: !4)
65 !20 = !DILocation(line: 2, column: 12, scope: !19)
66 !21 = !DILocation(line: 2, column: 8, scope: !19)
67 !22 = !DILocation(line: 3, column: 5, scope: !19)
68 !23 = !DILocation(line: 4, column: 1, scope: !4)