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1; RUN: llc -mtriple=x86_64-apple-darwin10 < %s | FileCheck %s2 3%struct.a = type { i32 }4 5define i32 @bar(ptr nocapture %b) nounwind ssp !dbg !0 {6entry:7 tail call void @llvm.dbg.value(metadata ptr %b, metadata !6, metadata !DIExpression()), !dbg !138 %tmp2 = load i32, ptr %b, align 4, !dbg !149 tail call void @llvm.dbg.value(metadata i32 %tmp2, metadata !11, metadata !DIExpression()), !dbg !1410 %call = tail call i32 (...) @foo(i32 %tmp2) nounwind , !dbg !1811 %add = add nsw i32 %tmp2, 1, !dbg !1912 ret i32 %add, !dbg !1913}14 15declare i32 @foo(...) 16 17declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone18 19!llvm.dbg.cu = !{!2}20!llvm.module.flags = !{!24}21 22!0 = distinct !DISubprogram(name: "bar", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, file: !22, scope: !1, type: !3, retainedNodes: !21)23!1 = !DIFile(filename: "bar.c", directory: "/private/tmp")24!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 122997)", isOptimized: true, emissionKind: FullDebug, file: !22, enums: !23, retainedTypes: !23, imports: null)25!3 = !DISubroutineType(types: !4)26!4 = !{!5}27!5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)28!6 = !DILocalVariable(name: "b", line: 5, arg: 1, scope: !0, file: !1, type: !7)29!7 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, scope: !2, baseType: !8)30!8 = !DICompositeType(tag: DW_TAG_structure_type, name: "a", line: 1, size: 32, align: 32, file: !22, scope: !2, elements: !9)31!9 = !{!10}32!10 = !DIDerivedType(tag: DW_TAG_member, name: "c", line: 2, size: 32, align: 32, file: !22, scope: !1, baseType: !5)33!11 = !DILocalVariable(name: "x", line: 6, scope: !12, file: !1, type: !5)34!12 = distinct !DILexicalBlock(line: 5, column: 22, file: !22, scope: !0)35!13 = !DILocation(line: 5, column: 19, scope: !0)36!14 = !DILocation(line: 6, column: 14, scope: !12)37!18 = !DILocation(line: 7, column: 2, scope: !12)38!19 = !DILocation(line: 8, column: 2, scope: !12)39!21 = !{!6, !11}40!22 = !DIFile(filename: "bar.c", directory: "/private/tmp")41!23 = !{}42 43; Check that variable bar:b value range is appropriately truncated in debug info.44; The variable is in %rdi which is clobbered by 'movl %ebx, %edi'45; Here Ltmp7 is the end of the location range.46 47;CHECK: .loc 1 7 248;CHECK: movl49;CHECK-NEXT: [[CLOBBER:Ltmp[0-9]*]]50 51;CHECK:Ldebug_loc0:52;CHECK-NEXT: Lset{{.*}} =53;CHECK-NEXT: .quad54;CHECK-NEXT: [[CLOBBER_OFF:Lset.*]] = [[CLOBBER]]-{{.*}}55;CHECK-NEXT: .quad [[CLOBBER_OFF]]56;CHECK-NEXT: .short 1 ## Loc expr size57;CHECK-NEXT: .byte 85 ## DW_OP_reg58;CHECK: .quad 059;CHECK-NEXT: .quad 060!24 = !{i32 1, !"Debug Info Version", i32 3}61