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1; RUN: llc -O2 < %s -experimental-debug-variable-locations=true | FileCheck %s2; RUN: llc -O2 -regalloc=basic < %s -experimental-debug-variable-locations=true | FileCheck %s3source_filename = "test/CodeGen/X86/2010-05-26-DotDebugLoc.ll"4target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"5target triple = "x86_64-apple-darwin10"6 7%struct.a = type { i32, ptr }8 9@llvm.used = appending global [1 x ptr] [ptr @bar], section "llvm.metadata"10 11; Function Attrs: noinline nounwind optsize ssp12define ptr @bar(ptr %myvar) #0 !dbg !8 {13entry:14 tail call void @llvm.dbg.value(metadata ptr %myvar, i64 0, metadata !18, metadata !19), !dbg !2015 %0 = load i32, ptr %myvar, align 8, !dbg !2116 tail call void @foo(i32 %0) #0, !dbg !2117 ret ptr %myvar, !dbg !2318}19 20; Function Attrs: noinline nounwind optsize ssp21declare void @foo(i32) #022 23; Function Attrs: nounwind readnone24declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #125 26attributes #0 = { noinline nounwind optsize ssp }27attributes #1 = { nounwind readnone }28 29!llvm.dbg.cu = !{!0}30!llvm.module.flags = !{!7}31 32!0 = distinct !DICompileUnit(language: DW_LANG_C89, file: !1, producer: "4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !3, imports: !2)33!1 = !DIFile(filename: "foo.c", directory: "/tmp/")34!2 = !{}35!3 = !{!4}36!4 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression())37!5 = !DIGlobalVariable(name: "ret", scope: !1, file: !1, line: 7, type: !6, isLocal: false, isDefinition: true)38!6 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)39!7 = !{i32 1, !"Debug Info Version", i32 3}40!8 = distinct !DISubprogram(name: "bar", linkageName: "bar", scope: !1, file: !1, line: 17, type: !9, isLocal: false, isDefinition: true, scopeLine: 17, virtualIndex: 6, isOptimized: true, unit: !0, retainedNodes: !17)41!9 = !DISubroutineType(types: !10)42!10 = !{!11, !12}43!11 = !DIDerivedType(tag: DW_TAG_pointer_type, scope: !1, file: !1, baseType: null, size: 64, align: 64)44!12 = !DIDerivedType(tag: DW_TAG_pointer_type, scope: !1, file: !1, baseType: !13, size: 64, align: 64)45!13 = !DICompositeType(tag: DW_TAG_structure_type, name: "a", scope: !1, file: !1, line: 2, size: 128, align: 64, elements: !14)46!14 = !{!15, !16}47!15 = !DIDerivedType(tag: DW_TAG_member, name: "c", scope: !13, file: !1, line: 3, baseType: !6, size: 32, align: 32)48!16 = !DIDerivedType(tag: DW_TAG_member, name: "d", scope: !13, file: !1, line: 4, baseType: !12, size: 64, align: 64, offset: 64)49!17 = !{!18}50!18 = !DILocalVariable(name: "myvar", arg: 1, scope: !8, file: !1, line: 17, type: !12)51!19 = !DIExpression()52!20 = !DILocation(line: 0, scope: !8)53!21 = !DILocation(line: 18, scope: !22)54!22 = distinct !DILexicalBlock(scope: !8, file: !1, line: 17)55!23 = !DILocation(line: 19, scope: !22)56 57; The variable bar:myvar changes registers after $rdi is clobbered by a memory58; movl. It is later clobbered by popq %rbx.59; CHECK: movq60; CHECK: movl61; CHECK-NEXT: [[LABEL:Ltmp[0-9]*]]62; CHECK: .loc 1 19 063; CHECK: popq64; CHECK-NEXT: [[CLOBBER:Ltmp[0-9]*]]65 66; CHECK: Ldebug_loc0:67; CHECK-NEXT: [[SET1:.*]] = Lfunc_begin0-Lfunc_begin068; CHECK-NEXT: .quad [[SET1]]69; CHECK-NEXT: [[SET2:.*]] = [[LABEL]]-Lfunc_begin070; CHECK-NEXT: .quad [[SET2]]71; CHECK-NEXT: .short 1 ## Loc expr size72; CHECK-NEXT: .byte 8573; CHECK-NEXT: [[SET3:.*]] = [[LABEL]]-Lfunc_begin074; CHECK-NEXT: .quad [[SET3]]75; CHECK-NEXT: [[SET4:.*]] = [[CLOBBER]]-Lfunc_begin076; CHECK-NEXT: .quad [[SET4]]77; CHECK-NEXT: .short 1 ## Loc expr size78; CHECK-NEXT: .byte 8379