1 ; RUN: opt -S -loop-rotate < %s | FileCheck %s
2 ; RUN: opt -S -loop-rotate -enable-mssa-loop-dependency=true -verify-memoryssa < %s | FileCheck %s
3 source_filename = "/tmp/loop.c"
4 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
5 target triple = "x86_64-apple-macosx10.13.0"
7 ; Function Attrs: nounwind ssp uwtable
8 define void @f(float* %input, i64 %n, i64 %s) local_unnamed_addr #0 !dbg !8 {
10 call void @llvm.dbg.value(metadata float* %input, metadata !15, metadata !DIExpression()), !dbg !20
11 call void @llvm.dbg.value(metadata i64 %n, metadata !16, metadata !DIExpression()), !dbg !21
12 call void @llvm.dbg.value(metadata i64 %s, metadata !17, metadata !DIExpression()), !dbg !22
13 call void @llvm.dbg.value(metadata i64 0, metadata !18, metadata !DIExpression()), !dbg !23
14 ; CHECK: call void @llvm.dbg.value(metadata i64 0, metadata !18, metadata !DIExpression()), !dbg !23
15 ; CHECK-NOT: call void @llvm.dbg.value(metadata i64 0, metadata !18, metadata !DIExpression()), !dbg !23
16 br label %for.cond, !dbg !24
18 for.cond: ; preds = %for.body, %entry
19 ; CHECK: %i.02 = phi i64 [ 0, %for.body.lr.ph ], [ %add, %for.body ]
20 %i.0 = phi i64 [ 0, %entry ], [ %add, %for.body ]
21 call void @llvm.dbg.value(metadata i64 %i.0, metadata !18, metadata !DIExpression()), !dbg !23
22 %cmp = icmp slt i64 %i.0, %n, !dbg !25
23 br i1 %cmp, label %for.body, label %for.cond.cleanup, !dbg !27
25 for.cond.cleanup: ; preds = %for.cond
28 for.body: ; preds = %for.cond
29 %arrayidx = getelementptr inbounds float, float* %input, i64 %i.0, !dbg !29
30 %0 = load float, float* %arrayidx, align 4, !dbg !29, !tbaa !30
31 call void @bar(float %0), !dbg !34
32 %add = add nsw i64 %i.0, %s, !dbg !35
33 call void @llvm.dbg.value(metadata i64 %add, metadata !18, metadata !DIExpression()), !dbg !23
34 ; CHECK: call void @llvm.dbg.value(metadata i64 %add, metadata !18, metadata !DIExpression()), !dbg !23
35 ; CHECK-NOT: call void @llvm.dbg.value(metadata i64 %add, metadata !18, metadata !DIExpression()), !dbg !23
36 br label %for.cond, !dbg !36, !llvm.loop !37
39 declare void @bar(float) local_unnamed_addr #1
41 ; Function Attrs: nounwind readnone speculatable
42 declare void @llvm.dbg.value(metadata, metadata, metadata) #2
44 attributes #0 = { nounwind ssp uwtable }
45 attributes #2 = { nounwind readnone speculatable }
48 !llvm.module.flags = !{!3, !4, !5, !6}
51 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 6.0.0 (trunk 316689) (llvm/trunk 316685)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
52 !1 = !DIFile(filename: "/tmp/loop.c", directory: "/Data/llvm")
54 !3 = !{i32 2, !"Dwarf Version", i32 4}
55 !4 = !{i32 2, !"Debug Info Version", i32 3}
56 !5 = !{i32 1, !"wchar_size", i32 4}
57 !6 = !{i32 7, !"PIC Level", i32 2}
58 !7 = !{!"clang version 6.0.0 (trunk 316689) (llvm/trunk 316685)"}
59 !8 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 2, type: !9, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !14)
60 !9 = !DISubroutineType(types: !10)
61 !10 = !{null, !11, !13, !13}
62 !11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64)
63 !12 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float)
64 !13 = !DIBasicType(name: "long long int", size: 64, encoding: DW_ATE_signed)
65 !14 = !{!15, !16, !17, !18}
66 !15 = !DILocalVariable(name: "input", arg: 1, scope: !8, file: !1, line: 2, type: !11)
67 !16 = !DILocalVariable(name: "n", arg: 2, scope: !8, file: !1, line: 2, type: !13)
68 !17 = !DILocalVariable(name: "s", arg: 3, scope: !8, file: !1, line: 2, type: !13)
69 !18 = !DILocalVariable(name: "i", scope: !19, file: !1, line: 3, type: !13)
70 !19 = distinct !DILexicalBlock(scope: !8, file: !1, line: 3, column: 3)
71 !20 = !DILocation(line: 2, column: 15, scope: !8)
72 !21 = !DILocation(line: 2, column: 32, scope: !8)
73 !22 = !DILocation(line: 2, column: 45, scope: !8)
74 !23 = !DILocation(line: 3, column: 18, scope: !19)
75 !24 = !DILocation(line: 3, column: 8, scope: !19)
76 !25 = !DILocation(line: 3, column: 26, scope: !26)
77 !26 = distinct !DILexicalBlock(scope: !19, file: !1, line: 3, column: 3)
78 !27 = !DILocation(line: 3, column: 3, scope: !19)
79 !28 = !DILocation(line: 5, column: 1, scope: !8)
80 !29 = !DILocation(line: 4, column: 9, scope: !26)
81 !30 = !{!31, !31, i64 0}
82 !31 = !{!"float", !32, i64 0}
83 !32 = !{!"omnipotent char", !33, i64 0}
84 !33 = !{!"Simple C/C++ TBAA"}
85 !34 = !DILocation(line: 4, column: 5, scope: !26)
86 !35 = !DILocation(line: 3, column: 31, scope: !26)
87 !36 = !DILocation(line: 3, column: 3, scope: !26)
88 !37 = distinct !{!37, !27, !38}
89 !38 = !DILocation(line: 4, column: 17, scope: !19)