| ; RUN: opt %loadPolly \ |
| ; RUN: -pass-remarks-missed="polly-detect" -polly-detect-track-failures \ |
| ; RUN: -polly-allow-nonaffine-loops=false -polly-detect -analyze \ |
| ; RUN: < %s 2>&1| FileCheck %s --check-prefix=REJECTNONAFFINELOOPS |
| ; RUN: opt %loadPolly \ |
| ; RUN: -pass-remarks-missed="polly-detect" -polly-detect-track-failures \ |
| ; RUN: -polly-allow-nonaffine-loops=true -polly-detect -analyze \ |
| ; RUN: < %s 2>&1| FileCheck %s --check-prefix=ALLOWNONAFFINELOOPS |
| ; RUN: opt %loadPolly -pass-remarks-missed="polly-detect" \ |
| ; RUN: -polly-process-unprofitable=false \ |
| ; RUN: -polly-detect-track-failures -polly-allow-nonaffine-loops=true \ |
| ; RUN: -polly-allow-nonaffine -polly-detect -analyze < %s 2>&1 \ |
| ; RUN: | FileCheck %s --check-prefix=ALLOWNONAFFINEALL |
| |
| ; void f(int A[], int n) { |
| ; for (int i = 0; i < A[n+i]; i++) |
| ; A[i] = 0; |
| ; } |
| |
| ; If we reject non-affine loops the non-affine loop bound will be reported: |
| ; |
| ; REJECTNONAFFINELOOPS: remark: ReportLoopBound-01.c:1:12: The following errors keep this region from being a Scop. |
| ; REJECTNONAFFINELOOPS: remark: ReportLoopBound-01.c:2:8: Failed to derive an affine function from the loop bounds. |
| ; REJECTNONAFFINELOOPS: remark: ReportLoopBound-01.c:3:5: Invalid Scop candidate ends here. |
| |
| ; If we allow non-affine loops the non-affine access will be reported: |
| ; |
| ; ALLOWNONAFFINELOOPS: remark: ReportLoopBound-01.c:1:12: The following errors keep this region from being a Scop. |
| ; ALLOWNONAFFINELOOPS: remark: ReportLoopBound-01.c:3:5: The array subscript of "A" is not affine |
| ; ALLOWNONAFFINELOOPS: remark: ReportLoopBound-01.c:3:5: Invalid Scop candidate ends here. |
| |
| ; If we allow non-affine loops and non-affine accesses the region will be reported as not profitable: |
| ; |
| ; ALLOWNONAFFINEALL: remark: ReportLoopBound-01.c:1:12: The following errors keep this region from being a Scop. |
| ; ALLOWNONAFFINEALL: remark: ReportLoopBound-01.c:1:12: No profitable polyhedral optimization found |
| ; ALLOWNONAFFINEALL: remark: ReportLoopBound-01.c:3:5: Invalid Scop candidate ends here. |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| |
| define void @f(i32* %A, i32 %n) !dbg !4 { |
| entry: |
| br label %entry.split |
| |
| entry.split: ; preds = %entry |
| tail call void @llvm.dbg.value(metadata i32* %A, i64 0, metadata !13, metadata !DIExpression()), !dbg !14 |
| tail call void @llvm.dbg.value(metadata i32* %A, i64 0, metadata !13, metadata !DIExpression()), !dbg !14 |
| tail call void @llvm.dbg.value(metadata i32 %n, i64 0, metadata !15, metadata !DIExpression()), !dbg !16 |
| tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !18, metadata !DIExpression()), !dbg !20 |
| %idxprom = sext i32 %n to i64, !dbg !21 |
| %arrayidx = getelementptr inbounds i32, i32* %A, i64 %idxprom, !dbg !21 |
| %0 = load i32, i32* %arrayidx, align 4, !dbg !21 |
| %cmp3 = icmp sgt i32 %0, 0, !dbg !21 |
| br i1 %cmp3, label %for.body.lr.ph, label %for.end, !dbg !21 |
| |
| for.body.lr.ph: ; preds = %entry.split |
| br label %for.body, !dbg !22 |
| |
| for.body: ; preds = %for.body.lr.ph, %for.body |
| %indvar = phi i64 [ 0, %for.body.lr.ph ], [ %indvar.next, %for.body ] |
| %arrayidx2 = getelementptr i32, i32* %A, i64 %indvar, !dbg !24 |
| %1 = add i64 %indvar, 1, !dbg !24 |
| %inc = trunc i64 %1 to i32, !dbg !21 |
| store i32 0, i32* %arrayidx2, align 4, !dbg !24 |
| tail call void @llvm.dbg.value(metadata !{null}, i64 0, metadata !18, metadata !DIExpression()), !dbg !20 |
| %arrayidx3 = getelementptr inbounds i32, i32* %arrayidx, i64 %indvar, !dbg !21 |
| %2 = load i32, i32* %arrayidx3, align 4, !dbg !21 |
| %cmp = icmp slt i32 %inc, %2, !dbg !21 |
| %indvar.next = add i64 %indvar, 1, !dbg !21 |
| br i1 %cmp, label %for.body, label %for.cond.for.end_crit_edge, !dbg !21 |
| |
| for.cond.for.end_crit_edge: ; preds = %for.body |
| br label %for.end, !dbg !25 |
| |
| for.end: ; preds = %for.cond.for.end_crit_edge, %entry.split |
| ret void, !dbg !27 |
| } |
| |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) |
| |
| declare void @llvm.dbg.value(metadata, i64, metadata, metadata) |
| |
| attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #1 = { nounwind readnone } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!10, !11} |
| !llvm.ident = !{!12} |
| |
| !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) |
| !1 = !DIFile(filename: "ReportLoopBound-01.c", directory: "test/ScopDetectionDiagnostic/") |
| !2 = !{} |
| !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, retainedNodes: !2) |
| !5 = !DIFile(filename: "ReportLoopBound-01.c", directory: "test/ScopDetectionDiagnostic/") |
| !6 = !DISubroutineType(types: !7) |
| !7 = !{null, !8, !9} |
| !8 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !9) |
| !9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !10 = !{i32 2, !"Dwarf Version", i32 4} |
| !11 = !{i32 2, !"Debug Info Version", i32 3} |
| !12 = !{!"clang version 3.6.0 "} |
| !13 = !DILocalVariable(name: "A", line: 1, arg: 1, scope: !4, file: !5, type: !8) |
| !14 = !DILocation(line: 1, column: 12, scope: !4) |
| !15 = !DILocalVariable(name: "n", line: 1, arg: 2, scope: !4, file: !5, type: !9) |
| !16 = !DILocation(line: 1, column: 21, scope: !4) |
| !17 = !{i32 0} |
| !18 = !DILocalVariable(name: "i", line: 2, scope: !19, file: !5, type: !9) |
| !19 = distinct !DILexicalBlock(line: 2, column: 3, file: !1, scope: !4) |
| !20 = !DILocation(line: 2, column: 12, scope: !19) |
| !21 = !DILocation(line: 2, column: 8, scope: !19) |
| !22 = !DILocation(line: 2, column: 8, scope: !23) |
| !23 = distinct !DILexicalBlock(line: 2, column: 8, file: !1, scope: !19) |
| !24 = !DILocation(line: 3, column: 5, scope: !19) |
| !25 = !DILocation(line: 2, column: 8, scope: !26) |
| !26 = distinct !DILexicalBlock(line: 2, column: 8, file: !1, scope: !19) |
| !27 = !DILocation(line: 4, column: 1, scope: !4) |