forked from OSchip/llvm-project
71 lines
3.5 KiB
LLVM
71 lines
3.5 KiB
LLVM
; 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
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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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target triple = "x86_64-unknown-linux-gnu"
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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), !dbg !14
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tail call void @llvm.dbg.value(metadata i32* %B, i64 0, metadata !15), !dbg !16
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tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !18), !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* %B, i64 %indvar, !dbg !22
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%arrayidx2 = getelementptr i32* %A, i64 %indvar, !dbg !22
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%0 = load 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), !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)
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declare void @llvm.dbg.value(metadata, i64, 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 = !{!"0x11\0012\00clang version 3.6.0 \000\00\000\00\001", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [test/ScopDetectionDiagnostic/ReportAlias-01.c] [DW_LANG_C99]
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!1 = !{!"ReportAlias-01.c", !"test/ScopDetectionDiagnostic/"}
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!2 = !{}
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!3 = !{!4}
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!4 = !{!"0x2e\00f\00f\00\001\000\001\000\006\00256\000\001", !1, !5, !6, null, void (i32*, i32*)* @f, null, null, !2} ; [ DW_TAG_subprogram ] [line 1] [def] [f]
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!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [test/ScopDetectionDiagnostic/ReportAlias-01.c]
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!6 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!7 = !{null, !8, !8}
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!8 = !{!"0xf\00\000\0064\0064\000\000", null, null, !9} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from int]
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!9 = !{!"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc 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 2}
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!12 = !{!"clang version 3.6.0 "}
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!13 = !{!"0x101\00A\0016777217\000", !4, !5, !8} ; [ DW_TAG_arg_variable ] [A] [line 1]
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!14 = !{i32 1, i32 12, !4, null}
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!15 = !{!"0x101\00B\0033554433\000", !4, !5, !8} ; [ DW_TAG_arg_variable ] [B] [line 1]
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!16 = !{i32 1, i32 21, !4, null}
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!17 = !{i32 0}
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!18 = !{!"0x100\00i\002\000", !19, !5, !9} ; [ DW_TAG_auto_variable ] [i] [line 2]
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!19 = !{!"0xb\002\003\000", !1, !4} ; [ DW_TAG_lexical_block ] [test/ScopDetectionDiagnostic/ReportAlias-01.c]
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!20 = !{i32 2, i32 12, !19, null}
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!21 = !{i32 2, i32 8, !19, null}
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!22 = !{i32 3, i32 5, !19, null}
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!23 = !{i32 4, i32 1, !4, null}
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