| ; RUN: opt -S -loop-rotate < %s | FileCheck %s |
| ; RUN: opt -S -loop-rotate -enable-mssa-loop-dependency=true -verify-memoryssa < %s | FileCheck %s |
| source_filename = "/tmp/loop.c" |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx10.13.0" |
| |
| ; Function Attrs: nounwind ssp uwtable |
| define void @f(float* %input, i64 %n, i64 %s) local_unnamed_addr #0 !dbg !8 { |
| entry: |
| call void @llvm.dbg.value(metadata float* %input, metadata !15, metadata !DIExpression()), !dbg !20 |
| call void @llvm.dbg.value(metadata i64 %n, metadata !16, metadata !DIExpression()), !dbg !21 |
| call void @llvm.dbg.value(metadata i64 %s, metadata !17, metadata !DIExpression()), !dbg !22 |
| call void @llvm.dbg.value(metadata i64 0, metadata !18, metadata !DIExpression()), !dbg !23 |
| ; CHECK: call void @llvm.dbg.value(metadata i64 0, metadata !18, metadata !DIExpression()), !dbg !23 |
| ; CHECK-NOT: call void @llvm.dbg.value(metadata i64 0, metadata !18, metadata !DIExpression()), !dbg !23 |
| br label %for.cond, !dbg !24 |
| |
| for.cond: ; preds = %for.body, %entry |
| ; CHECK: %i.02 = phi i64 [ 0, %for.body.lr.ph ], [ %add, %for.body ] |
| %i.0 = phi i64 [ 0, %entry ], [ %add, %for.body ] |
| call void @llvm.dbg.value(metadata i64 %i.0, metadata !18, metadata !DIExpression()), !dbg !23 |
| %cmp = icmp slt i64 %i.0, %n, !dbg !25 |
| br i1 %cmp, label %for.body, label %for.cond.cleanup, !dbg !27 |
| |
| for.cond.cleanup: ; preds = %for.cond |
| ret void, !dbg !28 |
| |
| for.body: ; preds = %for.cond |
| %arrayidx = getelementptr inbounds float, float* %input, i64 %i.0, !dbg !29 |
| %0 = load float, float* %arrayidx, align 4, !dbg !29, !tbaa !30 |
| call void @bar(float %0), !dbg !34 |
| %add = add nsw i64 %i.0, %s, !dbg !35 |
| call void @llvm.dbg.value(metadata i64 %add, metadata !18, metadata !DIExpression()), !dbg !23 |
| ; CHECK: call void @llvm.dbg.value(metadata i64 %add, metadata !18, metadata !DIExpression()), !dbg !23 |
| ; CHECK-NOT: call void @llvm.dbg.value(metadata i64 %add, metadata !18, metadata !DIExpression()), !dbg !23 |
| br label %for.cond, !dbg !36, !llvm.loop !37 |
| } |
| |
| declare void @bar(float) local_unnamed_addr #1 |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #2 |
| |
| attributes #0 = { nounwind ssp uwtable } |
| attributes #2 = { nounwind readnone speculatable } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4, !5, !6} |
| !llvm.ident = !{!7} |
| |
| !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) |
| !1 = !DIFile(filename: "/tmp/loop.c", directory: "/Data/llvm") |
| !2 = !{} |
| !3 = !{i32 2, !"Dwarf Version", i32 4} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = !{i32 1, !"wchar_size", i32 4} |
| !6 = !{i32 7, !"PIC Level", i32 2} |
| !7 = !{!"clang version 6.0.0 (trunk 316689) (llvm/trunk 316685)"} |
| !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) |
| !9 = !DISubroutineType(types: !10) |
| !10 = !{null, !11, !13, !13} |
| !11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64) |
| !12 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float) |
| !13 = !DIBasicType(name: "long long int", size: 64, encoding: DW_ATE_signed) |
| !14 = !{!15, !16, !17, !18} |
| !15 = !DILocalVariable(name: "input", arg: 1, scope: !8, file: !1, line: 2, type: !11) |
| !16 = !DILocalVariable(name: "n", arg: 2, scope: !8, file: !1, line: 2, type: !13) |
| !17 = !DILocalVariable(name: "s", arg: 3, scope: !8, file: !1, line: 2, type: !13) |
| !18 = !DILocalVariable(name: "i", scope: !19, file: !1, line: 3, type: !13) |
| !19 = distinct !DILexicalBlock(scope: !8, file: !1, line: 3, column: 3) |
| !20 = !DILocation(line: 2, column: 15, scope: !8) |
| !21 = !DILocation(line: 2, column: 32, scope: !8) |
| !22 = !DILocation(line: 2, column: 45, scope: !8) |
| !23 = !DILocation(line: 3, column: 18, scope: !19) |
| !24 = !DILocation(line: 3, column: 8, scope: !19) |
| !25 = !DILocation(line: 3, column: 26, scope: !26) |
| !26 = distinct !DILexicalBlock(scope: !19, file: !1, line: 3, column: 3) |
| !27 = !DILocation(line: 3, column: 3, scope: !19) |
| !28 = !DILocation(line: 5, column: 1, scope: !8) |
| !29 = !DILocation(line: 4, column: 9, scope: !26) |
| !30 = !{!31, !31, i64 0} |
| !31 = !{!"float", !32, i64 0} |
| !32 = !{!"omnipotent char", !33, i64 0} |
| !33 = !{!"Simple C/C++ TBAA"} |
| !34 = !DILocation(line: 4, column: 5, scope: !26) |
| !35 = !DILocation(line: 3, column: 31, scope: !26) |
| !36 = !DILocation(line: 3, column: 3, scope: !26) |
| !37 = distinct !{!37, !27, !38} |
| !38 = !DILocation(line: 4, column: 17, scope: !19) |