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 17target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 18 19; Function Attrs: nounwind ssp uwtable 20define void @_Z4testPiS_i(i32* nocapture %A, i32* nocapture %B, i32 %number) #0 { 21entry: 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 25for.body.preheader: ; preds = %entry 26 br label %for.body, !dbg !14 27 28for.cond5.preheader: ; preds = %for.body 29 br i1 %cmp25, label %for.body7.preheader, label %for.end15, !dbg !16, !llvm.loop !18 30 31for.body7.preheader: ; preds = %for.cond5.preheader 32 br label %for.body7, !dbg !20 33 34for.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* %B, i64 %indvars.iv27, !dbg !14 37 %0 = load i32* %arrayidx, align 4, !dbg !14, !tbaa !22 38 %idxprom1 = sext i32 %0 to i64, !dbg !14 39 %arrayidx2 = getelementptr inbounds i32* %A, i64 %idxprom1, !dbg !14 40 %1 = load 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 48for.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* %A, i64 %indvars.iv, !dbg !20 51 %2 = load i32* %arrayidx9, align 4, !dbg !20, !tbaa !22 52 %idxprom10 = sext i32 %2 to i64, !dbg !20 53 %arrayidx11 = getelementptr inbounds i32* %B, i64 %idxprom10, !dbg !20 54 %3 = load 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 62for.end15.loopexit: ; preds = %for.body7 63 br label %for.end15 64 65for.end15: ; preds = %for.end15.loopexit, %entry, %for.cond5.preheader 66 ret void, !dbg !26 67} 68 69attributes #0 = { nounwind } 70 71!llvm.dbg.cu = !{!0} 72!llvm.module.flags = !{!7, !8} 73!llvm.ident = !{!9} 74 75!0 = !{!"0x11\004\00clang version 3.5.0\001\00\000\00\002", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] 76!1 = !{!"no_array_bounds.cpp", !"."} 77!2 = !{} 78!3 = !{!4} 79!4 = !{!"0x2e\00test\00test\00\001\000\001\000\006\00256\001\002", !1, !5, !6, null, void (i32*, i32*, i32)* @_Z4testPiS_i, null, null, !2} ; [ DW_TAG_subprogram ] 80!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] 81!6 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !2, null, null, null} ; [ DW_TAG_subroutine_type ] 82!7 = !{i32 2, !"Dwarf Version", i32 2} 83!8 = !{i32 2, !"Debug Info Version", i32 2} 84!9 = !{!"clang version 3.5.0"} 85!10 = !MDLocation(line: 4, column: 8, scope: !11) 86!11 = !{!"0xb\004\003\000", !1, !4} ; [ DW_TAG_lexical_block ] 87!12 = !{!12, !13} 88!13 = !{!"llvm.loop.vectorize.enable", i1 true} 89!14 = !MDLocation(line: 5, column: 5, scope: !15) 90!15 = !{!"0xb\004\0036\000", !1, !11} ; [ DW_TAG_lexical_block ] 91!16 = !MDLocation(line: 9, column: 8, scope: !17) 92!17 = !{!"0xb\009\003\000", !1, !4} ; [ DW_TAG_lexical_block ] 93!18 = !{!18, !13, !19} 94!19 = !{!"llvm.loop.vectorize.width", i32 1} 95!20 = !MDLocation(line: 10, column: 5, scope: !21) 96!21 = !{!"0xb\009\0036\000", !1, !17} ; [ DW_TAG_lexical_block ] 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 = !MDLocation(line: 12, column: 1, scope: !4) 102