llvm-project/polly/test/ScopDetectionDiagnostics/ReportAlias-01.ll

71 lines
4.3 KiB
LLVM

; RUN: opt %loadPolly -pass-remarks-missed="polly-detect" -polly-detect-track-failures -polly-detect -analyze < %s 2>&1| FileCheck %s
;void f(int A[], int B[]) {
; for (int i=0; i<42; i++)
; A[i] = B[i];
;}
; CHECK: remark: ReportAlias-01.c:2:8: The following errors keep this region from being a Scop.
; CHECK: remark: ReportAlias-01.c:3:5: Accesses to the arrays "A", "B" may access the same memory.
; CHECK: remark: ReportAlias-01.c:3:5: Invalid Scop candidate ends here.
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
define void @f(i32* %A, i32* %B) {
entry:
br label %entry.split
entry.split: ; preds = %entry
tail call void @llvm.dbg.value(metadata !{i32* %A}, i64 0, metadata !13), !dbg !14
tail call void @llvm.dbg.value(metadata !{i32* %B}, i64 0, metadata !15), !dbg !16
tail call void @llvm.dbg.value(metadata !17, i64 0, metadata !18), !dbg !20
br label %for.body, !dbg !21
for.body: ; preds = %entry.split, %for.body
%indvar = phi i64 [ 0, %entry.split ], [ %indvar.next, %for.body ]
%arrayidx = getelementptr i32* %B, i64 %indvar, !dbg !22
%arrayidx2 = getelementptr i32* %A, i64 %indvar, !dbg !22
%0 = load i32* %arrayidx, align 4, !dbg !22
store i32 %0, i32* %arrayidx2, align 4, !dbg !22
tail call void @llvm.dbg.value(metadata !{null}, i64 0, metadata !18), !dbg !20
%indvar.next = add i64 %indvar, 1, !dbg !21
%exitcond = icmp ne i64 %indvar.next, 42, !dbg !21
br i1 %exitcond, label %for.body, label %for.end, !dbg !21
for.end: ; preds = %for.body
ret void, !dbg !23
}
declare void @llvm.dbg.declare(metadata, metadata)
declare void @llvm.dbg.value(metadata, i64, metadata)
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!10, !11}
!llvm.ident = !{!12}
!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.6.0 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [test/ScopDetectionDiagnostic/ReportAlias-01.c] [DW_LANG_C99]
!1 = metadata !{metadata !"ReportAlias-01.c", metadata !"test/ScopDetectionDiagnostic/"}
!2 = metadata !{}
!3 = metadata !{metadata !4}
!4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"f", metadata !"f", metadata !"", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (i32*, i32*)* @f, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [f]
!5 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [test/ScopDetectionDiagnostic/ReportAlias-01.c]
!6 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !7, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!7 = metadata !{null, metadata !8, metadata !8}
!8 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !9} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from int]
!9 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
!10 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
!11 = metadata !{i32 2, metadata !"Debug Info Version", i32 1}
!12 = metadata !{metadata !"clang version 3.6.0 "}
!13 = metadata !{i32 786689, metadata !4, metadata !"A", metadata !5, i32 16777217, metadata !8, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [A] [line 1]
!14 = metadata !{i32 1, i32 12, metadata !4, null}
!15 = metadata !{i32 786689, metadata !4, metadata !"B", metadata !5, i32 33554433, metadata !8, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [B] [line 1]
!16 = metadata !{i32 1, i32 21, metadata !4, null}
!17 = metadata !{i32 0}
!18 = metadata !{i32 786688, metadata !19, metadata !"i", metadata !5, i32 2, metadata !9, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [i] [line 2]
!19 = metadata !{i32 786443, metadata !1, metadata !4, i32 2, i32 3, i32 0, i32 0} ; [ DW_TAG_lexical_block ] [test/ScopDetectionDiagnostic/ReportAlias-01.c]
!20 = metadata !{i32 2, i32 12, metadata !19, null}
!21 = metadata !{i32 2, i32 8, metadata !19, null}
!22 = metadata !{i32 3, i32 5, metadata !19, null}
!23 = metadata !{i32 4, i32 1, metadata !4, null}