1 ; RUN: llc -stop-before=expand-isel-pseudos -pre-RA-sched=linearize < %s | FileCheck %s 2 source_filename = "linear-dbg-value.ll" 3 4 ; Function Attrs: nounwind readonly uwtable 5 define i32 @foo(i32* nocapture readonly %a, i32 %N) local_unnamed_addr #0 !dbg !6 { 6 entry: 7 %cmp6 = icmp sgt i32 %N, 0, !dbg !11 8 br i1 %cmp6, label %for.body.preheader, label %for.cond.cleanup, !dbg !15 9 10 for.body.preheader: ; preds = %entry 11 %wide.trip.count = zext i32 %N to i64 12 br label %for.body, !dbg !17 13 14 for.cond.cleanup.loopexit: ; preds = %for.body 15 br label %for.cond.cleanup, !dbg !19 16 17 for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry 18 %x.0.lcssa = phi i32 [ 0, %entry ], [ %add, %for.cond.cleanup.loopexit ] 19 ret i32 %x.0.lcssa, !dbg !19 20 21 for.body: ; preds = %for.body, %for.body.preheader 22 ; CHECK: ![[X:[0-9]+]] = !DILocalVariable(name: "x", 23 ; CHECK-LABEL: bb.3.for.body: 24 ; CHECK: DBG_VALUE {{.*}} ![[X]], !DIExpression() 25 ; CHECK: DBG_VALUE {{.*}} ![[X]], !DIExpression() 26 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ] 27 %x.07 = phi i32 [ %add, %for.body ], [ 0, %for.body.preheader ] 28 %arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv, !dbg !17 29 %0 = load i32, i32* %arrayidx, align 4, !dbg !17 30 %add = add nsw i32 %0, %x.07, !dbg !17 31 call void @llvm.dbg.value(metadata i32 %add, metadata !9, metadata !DIExpression()), !dbg !20 32 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !21 33 call void @llvm.dbg.value(metadata i32 %add, metadata !9, metadata !DIExpression()), !dbg !20 34 %exitcond = icmp eq i64 %indvars.iv.next, %wide.trip.count, !dbg !11 35 br i1 %exitcond, label %for.cond.cleanup.loopexit, label %for.body, !dbg !15 36 } 37 38 ; Function Attrs: nounwind readnone speculatable 39 declare void @llvm.dbg.value(metadata, metadata, metadata) #1 40 41 attributes #0 = { nounwind readonly uwtable } 42 attributes #1 = { nounwind readnone speculatable } 43 44 !llvm.dbg.cu = !{!0} 45 !llvm.module.flags = !{!3, !4} 46 !llvm.ident = !{!5} 47 48 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 4.0.1 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) 49 !1 = !DIFile(filename: "foo.c", directory: "/tmp") 50 !2 = !{} 51 !3 = !{i32 2, !"Dwarf Version", i32 4} 52 !4 = !{i32 2, !"Debug Info Version", i32 3} 53 !5 = !{!"clang version 4.0.1 "} 54 !6 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 2, type: !7, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !8) 55 !7 = !DISubroutineType(types: !2) 56 !8 = !{!9} 57 !9 = !DILocalVariable(name: "x", scope: !6, file: !1, line: 3, type: !10) 58 !10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 59 !11 = !DILocation(line: 4, scope: !12) 60 !12 = !DILexicalBlockFile(scope: !13, file: !1, discriminator: 1) 61 !13 = distinct !DILexicalBlock(scope: !14, file: !1, line: 4, column: 3) 62 !14 = distinct !DILexicalBlock(scope: !6, file: !1, line: 4, column: 3) 63 !15 = !DILocation(line: 4, scope: !16) 64 !16 = !DILexicalBlockFile(scope: !14, file: !1, discriminator: 1) 65 !17 = !DILocation(line: 5, scope: !18) 66 !18 = distinct !DILexicalBlock(scope: !13, file: !1, line: 4, column: 31) 67 !19 = !DILocation(line: 7, scope: !6) 68 !20 = !DILocation(line: 3, scope: !6) 69 !21 = !DILocation(line: 4, scope: !22) 70 !22 = !DILexicalBlockFile(scope: !13, file: !1, discriminator: 3) 71
