| ; RUN: opt < %s -loop-vectorize -S -pass-remarks-missed='loop-vectorize' -pass-remarks-analysis='loop-vectorize' 2>&1 | FileCheck %s |
| |
| ; C/C++ code for tests |
| ; void test(int *A, int Length) { |
| ; #pragma clang loop vectorize(enable) interleave(enable) |
| ; for (int i = 0; i < Length; i++) { |
| ; A[i] = i; |
| ; if (A[i] > Length) |
| ; break; |
| ; } |
| ; } |
| |
| ; void test_disabled(int *A, int Length) { |
| ; #pragma clang loop vectorize(disable) interleave(disable) |
| ; for (int i = 0; i < Length; i++) |
| ; A[i] = i; |
| ; } |
| |
| ; void test_array_bounds(int *A, int *B, int Length) { |
| ; #pragma clang loop vectorize(enable) |
| ; for (int i = 0; i < Length; i++) |
| ; A[i] = A[B[i]]; |
| ; } |
| |
| ; File, line, and column should match those specified in the metadata |
| ; CHECK: remark: source.cpp:4:5: loop not vectorized: could not determine number of loop iterations |
| ; CHECK: remark: source.cpp:4:5: loop not vectorized: use -Rpass-analysis=loop-vectorize for more info |
| ; CHECK: remark: source.cpp:13:5: loop not vectorized: vectorization and interleaving are explicitly disabled, or vectorize width and interleave count are both set to 1 |
| ; CHECK: remark: source.cpp:19:5: loop not vectorized: cannot identify array bounds |
| ; CHECK: remark: source.cpp:19:5: loop not vectorized: use -Rpass-analysis=loop-vectorize for more info |
| ; CHECK: warning: source.cpp:19:5: loop not vectorized: failed explicitly specified loop vectorization |
| |
| ; CHECK: _Z4testPii |
| ; CHECK-NOT: x i32> |
| ; CHECK: ret |
| |
| ; CHECK: _Z13test_disabledPii |
| ; CHECK-NOT: x i32> |
| ; CHECK: ret |
| |
| ; CHECK: _Z17test_array_boundsPiS_i |
| ; CHECK-NOT: x i32> |
| ; CHECK: ret |
| |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| |
| ; Function Attrs: nounwind optsize ssp uwtable |
| define void @_Z4testPii(i32* nocapture %A, i32 %Length) #0 !dbg !4 { |
| entry: |
| %cmp10 = icmp sgt i32 %Length, 0, !dbg !12 |
| br i1 %cmp10, label %for.body, label %for.end, !dbg !12, !llvm.loop !14 |
| |
| for.body: ; preds = %entry, %for.body |
| %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ] |
| %arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv, !dbg !16 |
| %0 = trunc i64 %indvars.iv to i32, !dbg !16 |
| %ld = load i32, i32* %arrayidx, align 4 |
| store i32 %0, i32* %arrayidx, align 4, !dbg !16, !tbaa !18 |
| %cmp3 = icmp sle i32 %ld, %Length, !dbg !22 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !12 |
| %1 = trunc i64 %indvars.iv.next to i32 |
| %cmp = icmp slt i32 %1, %Length, !dbg !12 |
| %or.cond = and i1 %cmp3, %cmp, !dbg !22 |
| br i1 %or.cond, label %for.body, label %for.end, !dbg !22 |
| |
| for.end: ; preds = %for.body, %entry |
| ret void, !dbg !24 |
| } |
| |
| ; Function Attrs: nounwind optsize ssp uwtable |
| define void @_Z13test_disabledPii(i32* nocapture %A, i32 %Length) #0 !dbg !7 { |
| entry: |
| %cmp4 = icmp sgt i32 %Length, 0, !dbg !25 |
| br i1 %cmp4, label %for.body, label %for.end, !dbg !25, !llvm.loop !27 |
| |
| for.body: ; preds = %entry, %for.body |
| %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ] |
| %arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv, !dbg !30 |
| %0 = trunc i64 %indvars.iv to i32, !dbg !30 |
| store i32 %0, i32* %arrayidx, align 4, !dbg !30, !tbaa !18 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !25 |
| %lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !25 |
| %exitcond = icmp eq i32 %lftr.wideiv, %Length, !dbg !25 |
| br i1 %exitcond, label %for.end, label %for.body, !dbg !25, !llvm.loop !27 |
| |
| for.end: ; preds = %for.body, %entry |
| ret void, !dbg !31 |
| } |
| |
| ; Function Attrs: nounwind optsize ssp uwtable |
| define void @_Z17test_array_boundsPiS_i(i32* nocapture %A, i32* nocapture readonly %B, i32 %Length) #0 !dbg !8 { |
| entry: |
| %cmp9 = icmp sgt i32 %Length, 0, !dbg !32 |
| br i1 %cmp9, label %for.body.preheader, label %for.end, !dbg !32, !llvm.loop !34 |
| |
| for.body.preheader: ; preds = %entry |
| br label %for.body, !dbg !35 |
| |
| for.body: ; preds = %for.body.preheader, %for.body |
| %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ] |
| %arrayidx = getelementptr inbounds i32, i32* %B, i64 %indvars.iv, !dbg !35 |
| %0 = load i32, i32* %arrayidx, align 4, !dbg !35, !tbaa !18 |
| %idxprom1 = sext i32 %0 to i64, !dbg !35 |
| %arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %idxprom1, !dbg !35 |
| %1 = load i32, i32* %arrayidx2, align 4, !dbg !35, !tbaa !18 |
| %arrayidx4 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv, !dbg !35 |
| store i32 %1, i32* %arrayidx4, align 4, !dbg !35, !tbaa !18 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !32 |
| %lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !32 |
| %exitcond = icmp eq i32 %lftr.wideiv, %Length, !dbg !32 |
| br i1 %exitcond, label %for.end.loopexit, label %for.body, !dbg !32, !llvm.loop !34 |
| |
| for.end.loopexit: ; preds = %for.body |
| br label %for.end |
| |
| for.end: ; preds = %for.end.loopexit, %entry |
| ret void, !dbg !36 |
| } |
| |
| attributes #0 = { nounwind } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!9, !10} |
| !llvm.ident = !{!11} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0", isOptimized: true, runtimeVersion: 6, emissionKind: LineTablesOnly, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) |
| !1 = !DIFile(filename: "source.cpp", directory: ".") |
| !2 = !{} |
| !4 = distinct !DISubprogram(name: "test", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, variables: !2) |
| !5 = !DIFile(filename: "source.cpp", directory: ".") |
| !6 = !DISubroutineType(types: !2) |
| !7 = distinct !DISubprogram(name: "test_disabled", line: 10, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 10, file: !1, scope: !5, type: !6, variables: !2) |
| !8 = distinct !DISubprogram(name: "test_array_bounds", line: 16, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 16, file: !1, scope: !5, type: !6, variables: !2) |
| !9 = !{i32 2, !"Dwarf Version", i32 2} |
| !10 = !{i32 2, !"Debug Info Version", i32 3} |
| !11 = !{!"clang version 3.5.0"} |
| !12 = !DILocation(line: 3, column: 8, scope: !13) |
| !13 = distinct !DILexicalBlock(line: 3, column: 3, file: !1, scope: !4) |
| !14 = !{!14, !15, !15} |
| !15 = !{!"llvm.loop.vectorize.enable", i1 true} |
| !16 = !DILocation(line: 4, column: 5, scope: !17) |
| !17 = distinct !DILexicalBlock(line: 3, column: 36, file: !1, scope: !13) |
| !18 = !{!19, !19, i64 0} |
| !19 = !{!"int", !20, i64 0} |
| !20 = !{!"omnipotent char", !21, i64 0} |
| !21 = !{!"Simple C/C++ TBAA"} |
| !22 = !DILocation(line: 5, column: 9, scope: !23) |
| !23 = distinct !DILexicalBlock(line: 5, column: 9, file: !1, scope: !17) |
| !24 = !DILocation(line: 8, column: 1, scope: !4) |
| !25 = !DILocation(line: 12, column: 8, scope: !26) |
| !26 = distinct !DILexicalBlock(line: 12, column: 3, file: !1, scope: !7) |
| !27 = !{!27, !28, !29} |
| !28 = !{!"llvm.loop.interleave.count", i32 1} |
| !29 = !{!"llvm.loop.vectorize.width", i32 1} |
| !30 = !DILocation(line: 13, column: 5, scope: !26) |
| !31 = !DILocation(line: 14, column: 1, scope: !7) |
| !32 = !DILocation(line: 18, column: 8, scope: !33) |
| !33 = distinct !DILexicalBlock(line: 18, column: 3, file: !1, scope: !8) |
| !34 = !{!34, !15} |
| !35 = !DILocation(line: 19, column: 5, scope: !33) |
| !36 = !DILocation(line: 20, column: 1, scope: !8) |