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