1 ; RUN: opt < %s -loop-vectorize -S -pass-remarks-missed='loop-vectorize' -pass-remarks-analysis='loop-vectorize' 2>&1 | FileCheck %s 2 3 ; C/C++ code for tests 4 ; void test(int *A, int Length) { 5 ; #pragma clang loop vectorize(enable) interleave(enable) 6 ; for (int i = 0; i < Length; i++) { 7 ; A[i] = i; 8 ; if (A[i] > Length) 9 ; break; 10 ; } 11 ; } 12 13 ; void test_disabled(int *A, int Length) { 14 ; #pragma clang loop vectorize(disable) interleave(disable) 15 ; for (int i = 0; i < Length; i++) 16 ; A[i] = i; 17 ; } 18 19 ; void test_array_bounds(int *A, int *B, int Length) { 20 ; #pragma clang loop vectorize(enable) 21 ; for (int i = 0; i < Length; i++) 22 ; A[i] = A[B[i]]; 23 ; } 24 25 ; File, line, and column should match those specified in the metadata 26 ; CHECK: remark: source.cpp:4:5: loop not vectorized: could not determine number of loop iterations 27 ; CHECK: remark: source.cpp:4:5: loop not vectorized: vectorization was not specified 28 ; CHECK: remark: source.cpp:13:5: loop not vectorized: vector width and interleave count are explicitly set to 1 29 ; CHECK: remark: source.cpp:19:5: loop not vectorized: cannot identify array bounds 30 ; CHECK: remark: source.cpp:19:5: loop not vectorized: vectorization is explicitly enabled 31 32 ; CHECK: _Z4testPii 33 ; CHECK-NOT: x i32> 34 ; CHECK: ret 35 36 ; CHECK: _Z13test_disabledPii 37 ; CHECK-NOT: x i32> 38 ; CHECK: ret 39 40 ; CHECK: _Z17test_array_boundsPiS_i 41 ; CHECK-NOT: x i32> 42 ; CHECK: ret 43 44 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 45 46 ; Function Attrs: nounwind optsize ssp uwtable 47 define void @_Z4testPii(i32* nocapture %A, i32 %Length) #0 { 48 entry: 49 %cmp10 = icmp sgt i32 %Length, 0, !dbg !12 50 br i1 %cmp10, label %for.body, label %for.end, !dbg !12, !llvm.loop !14 51 52 for.body: ; preds = %entry, %for.body 53 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ] 54 %arrayidx = getelementptr inbounds i32* %A, i64 %indvars.iv, !dbg !16 55 %0 = trunc i64 %indvars.iv to i32, !dbg !16 56 store i32 %0, i32* %arrayidx, align 4, !dbg !16, !tbaa !18 57 %cmp3 = icmp sle i32 %0, %Length, !dbg !22 58 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !12 59 %1 = trunc i64 %indvars.iv.next to i32 60 %cmp = icmp slt i32 %1, %Length, !dbg !12 61 %or.cond = and i1 %cmp3, %cmp, !dbg !22 62 br i1 %or.cond, label %for.body, label %for.end, !dbg !22 63 64 for.end: ; preds = %for.body, %entry 65 ret void, !dbg !24 66 } 67 68 ; Function Attrs: nounwind optsize ssp uwtable 69 define void @_Z13test_disabledPii(i32* nocapture %A, i32 %Length) #0 { 70 entry: 71 %cmp4 = icmp sgt i32 %Length, 0, !dbg !25 72 br i1 %cmp4, label %for.body, label %for.end, !dbg !25, !llvm.loop !27 73 74 for.body: ; preds = %entry, %for.body 75 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ] 76 %arrayidx = getelementptr inbounds i32* %A, i64 %indvars.iv, !dbg !30 77 %0 = trunc i64 %indvars.iv to i32, !dbg !30 78 store i32 %0, i32* %arrayidx, align 4, !dbg !30, !tbaa !18 79 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !25 80 %lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !25 81 %exitcond = icmp eq i32 %lftr.wideiv, %Length, !dbg !25 82 br i1 %exitcond, label %for.end, label %for.body, !dbg !25, !llvm.loop !27 83 84 for.end: ; preds = %for.body, %entry 85 ret void, !dbg !31 86 } 87 88 ; Function Attrs: nounwind optsize ssp uwtable 89 define void @_Z17test_array_boundsPiS_i(i32* nocapture %A, i32* nocapture readonly %B, i32 %Length) #0 { 90 entry: 91 %cmp9 = icmp sgt i32 %Length, 0, !dbg !32 92 br i1 %cmp9, label %for.body.preheader, label %for.end, !dbg !32, !llvm.loop !34 93 94 for.body.preheader: ; preds = %entry 95 br label %for.body, !dbg !35 96 97 for.body: ; preds = %for.body.preheader, %for.body 98 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ] 99 %arrayidx = getelementptr inbounds i32* %B, i64 %indvars.iv, !dbg !35 100 %0 = load i32* %arrayidx, align 4, !dbg !35, !tbaa !18 101 %idxprom1 = sext i32 %0 to i64, !dbg !35 102 %arrayidx2 = getelementptr inbounds i32* %A, i64 %idxprom1, !dbg !35 103 %1 = load i32* %arrayidx2, align 4, !dbg !35, !tbaa !18 104 %arrayidx4 = getelementptr inbounds i32* %A, i64 %indvars.iv, !dbg !35 105 store i32 %1, i32* %arrayidx4, align 4, !dbg !35, !tbaa !18 106 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !32 107 %lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !32 108 %exitcond = icmp eq i32 %lftr.wideiv, %Length, !dbg !32 109 br i1 %exitcond, label %for.end.loopexit, label %for.body, !dbg !32, !llvm.loop !34 110 111 for.end.loopexit: ; preds = %for.body 112 br label %for.end 113 114 for.end: ; preds = %for.end.loopexit, %entry 115 ret void, !dbg !36 116 } 117 118 attributes #0 = { nounwind } 119 120 !llvm.dbg.cu = !{!0} 121 !llvm.module.flags = !{!9, !10} 122 !llvm.ident = !{!11} 123 124 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5.0", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !"", i32 2} 125 !1 = metadata !{metadata !"source.cpp", metadata !"."} 126 !2 = metadata !{} 127 !3 = metadata !{metadata !4, metadata !7, metadata !8} 128 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"test", metadata !"test", metadata !"", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void (i32*, i32)* @_Z4testPii, null, null, metadata !2, i32 1} 129 !5 = metadata !{i32 786473, metadata !1} 130 !6 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !2, i32 0, null, null, null} 131 !7 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"test_disabled", metadata !"test_disabled", metadata !"", i32 10, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void (i32*, i32)* @_Z13test_disabledPii, null, null, metadata !2, i32 10} 132 !8 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"test_array_bounds", metadata !"test_array_bounds", metadata !"", i32 16, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void (i32*, i32*, i32)* @_Z17test_array_boundsPiS_i, null, null, metadata !2, i32 16} 133 !9 = metadata !{i32 2, metadata !"Dwarf Version", i32 2} 134 !10 = metadata !{i32 2, metadata !"Debug Info Version", i32 1} 135 !11 = metadata !{metadata !"clang version 3.5.0"} 136 !12 = metadata !{i32 3, i32 8, metadata !13, null} 137 !13 = metadata !{i32 786443, metadata !1, metadata !4, i32 3, i32 3, i32 0, i32 0} 138 !14 = metadata !{metadata !14, metadata !15, metadata !15} 139 !15 = metadata !{metadata !"llvm.loop.vectorize.enable", i1 true} 140 !16 = metadata !{i32 4, i32 5, metadata !17, null} 141 !17 = metadata !{i32 786443, metadata !1, metadata !13, i32 3, i32 36, i32 0, i32 1} 142 !18 = metadata !{metadata !19, metadata !19, i64 0} 143 !19 = metadata !{metadata !"int", metadata !20, i64 0} 144 !20 = metadata !{metadata !"omnipotent char", metadata !21, i64 0} 145 !21 = metadata !{metadata !"Simple C/C++ TBAA"} 146 !22 = metadata !{i32 5, i32 9, metadata !23, null} 147 !23 = metadata !{i32 786443, metadata !1, metadata !17, i32 5, i32 9, i32 0, i32 2} 148 !24 = metadata !{i32 8, i32 1, metadata !4, null} 149 !25 = metadata !{i32 12, i32 8, metadata !26, null} 150 !26 = metadata !{i32 786443, metadata !1, metadata !7, i32 12, i32 3, i32 0, i32 3} 151 !27 = metadata !{metadata !27, metadata !28, metadata !29} 152 !28 = metadata !{metadata !"llvm.loop.vectorize.unroll", i32 1} 153 !29 = metadata !{metadata !"llvm.loop.vectorize.width", i32 1} 154 !30 = metadata !{i32 13, i32 5, metadata !26, null} 155 !31 = metadata !{i32 14, i32 1, metadata !7, null} 156 !32 = metadata !{i32 18, i32 8, metadata !33, null} 157 !33 = metadata !{i32 786443, metadata !1, metadata !8, i32 18, i32 3, i32 0, i32 4} 158 !34 = metadata !{metadata !34, metadata !15} 159 !35 = metadata !{i32 19, i32 5, metadata !33, null} 160 !36 = metadata !{i32 20, i32 1, metadata !8, null} 161
