| ; RUN: opt -S -passes=loop-rotate -verify-memoryssa < %s | FileCheck %s |
| |
| ;CHECK-LABEL: func |
| ;CHECK-LABEL: entry |
| ;CHECK-NEXT: tail call void @llvm.dbg.value(metadata i32 %a |
| ;CHECK-NEXT: tail call void @llvm.dbg.value(metadata i32 1, metadata ![[I_VAR:[0-9]+]], metadata !DIExpression()) |
| ;CHECK-LABEL: for.body: |
| ;CHECK-NEXT: [[I:%.*]] = phi i32 [ 1, %entry ], [ %inc, %for.body ] |
| ;CHECK-NEXT: tail call void @llvm.dbg.value(metadata i32 [[I]], metadata ![[I_VAR]], metadata !DIExpression()) |
| |
| ; CHECK: ![[I_VAR]] = !DILocalVariable(name: "i",{{.*}}) |
| |
| ; Function Attrs: noinline nounwind |
| define void @func(i32 %a) local_unnamed_addr #0 !dbg !6 { |
| entry: |
| tail call void @llvm.dbg.value(metadata i32 %a, metadata !10, metadata !11), !dbg !12 |
| tail call void @llvm.dbg.value(metadata i32 1, metadata !13, metadata !11), !dbg !15 |
| br label %for.cond, !dbg !16 |
| |
| for.cond: ; preds = %for.body, %entry |
| %i.0 = phi i32 [ 1, %entry ], [ %inc, %for.body ] |
| tail call void @llvm.dbg.value(metadata i32 %i.0, metadata !13, metadata !11), !dbg !15 |
| %cmp = icmp slt i32 %i.0, 10, !dbg !17 |
| br i1 %cmp, label %for.body, label %for.end, !dbg !20 |
| |
| for.body: ; preds = %for.cond |
| %add = add nsw i32 %i.0, %a, !dbg !22 |
| %call = tail call i32 @func2(i32 %i.0, i32 %add) #3, !dbg !24 |
| %inc = add nsw i32 %i.0, 1, !dbg !25 |
| tail call void @llvm.dbg.value(metadata i32 %inc, metadata !13, metadata !11), !dbg !15 |
| br label %for.cond, !dbg !27, !llvm.loop !28 |
| |
| for.end: ; preds = %for.cond |
| ret void, !dbg !31 |
| } |
| |
| declare i32 @func2(i32, i32) local_unnamed_addr |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #2 |
| |
| attributes #0 = { noinline nounwind } |
| attributes #2 = { nounwind readnone } |
| attributes #3 = { nounwind } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4} |
| !llvm.ident = !{!5} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 5.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) |
| !1 = !DIFile(filename: "debug-phi.c", directory: "/work/projects/src/tests/debug") |
| !2 = !{} |
| !3 = !{i32 2, !"Dwarf Version", i32 4} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = !{!"clang version 5.0.0"} |
| !6 = distinct !DISubprogram(name: "func", scope: !1, file: !1, line: 2, type: !7, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2) |
| !7 = !DISubroutineType(types: !8) |
| !8 = !{null, !9} |
| !9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !10 = !DILocalVariable(name: "a", arg: 1, scope: !6, file: !1, line: 2, type: !9) |
| !11 = !DIExpression() |
| !12 = !DILocation(line: 2, column: 15, scope: !6) |
| !13 = !DILocalVariable(name: "i", scope: !14, file: !1, line: 3, type: !9) |
| !14 = distinct !DILexicalBlock(scope: !6, file: !1, line: 3, column: 3) |
| !15 = !DILocation(line: 3, column: 11, scope: !14) |
| !16 = !DILocation(line: 3, column: 7, scope: !14) |
| !17 = !DILocation(line: 3, column: 20, scope: !18) |
| !18 = !DILexicalBlockFile(scope: !19, file: !1, discriminator: 1) |
| !19 = distinct !DILexicalBlock(scope: !14, file: !1, line: 3, column: 3) |
| !20 = !DILocation(line: 3, column: 3, scope: !21) |
| !21 = !DILexicalBlockFile(scope: !14, file: !1, discriminator: 1) |
| !22 = !DILocation(line: 4, column: 15, scope: !23) |
| !23 = distinct !DILexicalBlock(scope: !19, file: !1, line: 3, column: 31) |
| !24 = !DILocation(line: 4, column: 5, scope: !23) |
| !25 = !DILocation(line: 3, column: 27, scope: !26) |
| !26 = !DILexicalBlockFile(scope: !19, file: !1, discriminator: 2) |
| !27 = !DILocation(line: 3, column: 3, scope: !26) |
| !28 = distinct !{!28, !29, !30} |
| !29 = !DILocation(line: 3, column: 3, scope: !14) |
| !30 = !DILocation(line: 5, column: 3, scope: !14) |
| !31 = !DILocation(line: 6, column: 1, scope: !6) |