1 ; RUN: opt < %s -loop-vectorize -S 2>&1 | FileCheck %s 2 3 ; Verify warning is generated when vectorization/ interleaving is explicitly specified and fails to occur. 4 ; CHECK: warning: no_array_bounds.cpp:5:5: loop not vectorized: failed explicitly specified loop vectorization 5 ; CHECK: warning: no_array_bounds.cpp:10:5: loop not interleaved: failed explicitly specified loop interleaving 6 7 ; #pragma clang loop vectorize(enable) 8 ; for (int i = 0; i < number; i++) { 9 ; A[B[i]]++; 10 ; } 11 12 ; #pragma clang loop vectorize(disable) interleave(enable) 13 ; for (int i = 0; i < number; i++) { 14 ; B[A[i]]++; 15 ; } 16 17 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 18 19 ; Function Attrs: nounwind ssp uwtable 20 define void @_Z4testPiS_i(i32* nocapture %A, i32* nocapture %B, i32 %number) #0 !dbg !4 { 21 entry: 22 %cmp25 = icmp sgt i32 %number, 0, !dbg !10 23 br i1 %cmp25, label %for.body.preheader, label %for.end15, !dbg !10, !llvm.loop !12 24 25 for.body.preheader: ; preds = %entry 26 br label %for.body, !dbg !14 27 28 for.cond5.preheader: ; preds = %for.body 29 br i1 %cmp25, label %for.body7.preheader, label %for.end15, !dbg !16, !llvm.loop !18 30 31 for.body7.preheader: ; preds = %for.cond5.preheader 32 br label %for.body7, !dbg !20 33 34 for.body: ; preds = %for.body.preheader, %for.body 35 %indvars.iv27 = phi i64 [ %indvars.iv.next28, %for.body ], [ 0, %for.body.preheader ] 36 %arrayidx = getelementptr inbounds i32, i32* %B, i64 %indvars.iv27, !dbg !14 37 %0 = load i32, i32* %arrayidx, align 4, !dbg !14, !tbaa !22 38 %idxprom1 = sext i32 %0 to i64, !dbg !14 39 %arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %idxprom1, !dbg !14 40 %1 = load i32, i32* %arrayidx2, align 4, !dbg !14, !tbaa !22 41 %inc = add nsw i32 %1, 1, !dbg !14 42 store i32 %inc, i32* %arrayidx2, align 4, !dbg !14, !tbaa !22 43 %indvars.iv.next28 = add nuw nsw i64 %indvars.iv27, 1, !dbg !10 44 %lftr.wideiv29 = trunc i64 %indvars.iv.next28 to i32, !dbg !10 45 %exitcond30 = icmp eq i32 %lftr.wideiv29, %number, !dbg !10 46 br i1 %exitcond30, label %for.cond5.preheader, label %for.body, !dbg !10, !llvm.loop !12 47 48 for.body7: ; preds = %for.body7.preheader, %for.body7 49 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body7 ], [ 0, %for.body7.preheader ] 50 %arrayidx9 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv, !dbg !20 51 %2 = load i32, i32* %arrayidx9, align 4, !dbg !20, !tbaa !22 52 %idxprom10 = sext i32 %2 to i64, !dbg !20 53 %arrayidx11 = getelementptr inbounds i32, i32* %B, i64 %idxprom10, !dbg !20 54 %3 = load i32, i32* %arrayidx11, align 4, !dbg !20, !tbaa !22 55 %inc12 = add nsw i32 %3, 1, !dbg !20 56 store i32 %inc12, i32* %arrayidx11, align 4, !dbg !20, !tbaa !22 57 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !16 58 %lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !16 59 %exitcond = icmp eq i32 %lftr.wideiv, %number, !dbg !16 60 br i1 %exitcond, label %for.end15.loopexit, label %for.body7, !dbg !16, !llvm.loop !18 61 62 for.end15.loopexit: ; preds = %for.body7 63 br label %for.end15 64 65 for.end15: ; preds = %for.end15.loopexit, %entry, %for.cond5.preheader 66 ret void, !dbg !26 67 } 68 69 attributes #0 = { nounwind } 70 71 !llvm.dbg.cu = !{!0} 72 !llvm.module.flags = !{!7, !8} 73 !llvm.ident = !{!9} 74 75 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0", isOptimized: true, emissionKind: 2, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2) 76 !1 = !DIFile(filename: "no_array_bounds.cpp", directory: ".") 77 !2 = !{} 78 !3 = !{!4} 79 !4 = distinct !DISubprogram(name: "test", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 2, file: !1, scope: !5, type: !6, variables: !2) 80 !5 = !DIFile(filename: "no_array_bounds.cpp", directory: ".") 81 !6 = !DISubroutineType(types: !2) 82 !7 = !{i32 2, !"Dwarf Version", i32 2} 83 !8 = !{i32 2, !"Debug Info Version", i32 3} 84 !9 = !{!"clang version 3.5.0"} 85 !10 = !DILocation(line: 4, column: 8, scope: !11) 86 !11 = distinct !DILexicalBlock(line: 4, column: 3, file: !1, scope: !4) 87 !12 = !{!12, !13} 88 !13 = !{!"llvm.loop.vectorize.enable", i1 true} 89 !14 = !DILocation(line: 5, column: 5, scope: !15) 90 !15 = distinct !DILexicalBlock(line: 4, column: 36, file: !1, scope: !11) 91 !16 = !DILocation(line: 9, column: 8, scope: !17) 92 !17 = distinct !DILexicalBlock(line: 9, column: 3, file: !1, scope: !4) 93 !18 = !{!18, !13, !19} 94 !19 = !{!"llvm.loop.vectorize.width", i32 1} 95 !20 = !DILocation(line: 10, column: 5, scope: !21) 96 !21 = distinct !DILexicalBlock(line: 9, column: 36, file: !1, scope: !17) 97 !22 = !{!23, !23, i64 0} 98 !23 = !{!"int", !24, i64 0} 99 !24 = !{!"omnipotent char", !25, i64 0} 100 !25 = !{!"Simple C/C++ TBAA"} 101 !26 = !DILocation(line: 12, column: 1, scope: !4) 102
