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1; RUN: llc -mtriple=x86_64-apple-macosx10.9.0 %s -stop-after=livedebugvars \2; RUN: -o - | FileCheck %s3; Generated from:4; void g(int *);5; int f() {6; int x = 23;7; g(&x);8; if (x == 42)9; ++x;10; return x; // check that x is not a constant here.11; }12; CHECK: ![[X:.*]] = !DILocalVariable(name: "x",13; CHECK: bb.0.entry:14; CHECK: DBG_VALUE 23, $noreg, ![[X]],15; CHECK: DBG_VALUE $rsp, $noreg, ![[X]], !DIExpression(DW_OP_plus_uconst, 4, DW_OP_deref),16; CHECK: bb.1.if.then:17; CHECK: DBG_VALUE 43, $noreg, ![[X]],18; CHECK: bb.2.if.end:19; CHECK-NOT: DBG_VALUE 23, $noreg, ![[X]],20; CHECK: RET64 $eax21 22target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"23target triple = "x86_64-apple-macosx10.11.0"24 25; Function Attrs: nounwind ssp uwtable26define i32 @f() #0 !dbg !4 {27entry:28 %x = alloca i32, align 429 call void @llvm.lifetime.start(i64 4, ptr %x) #4, !dbg !1430 tail call void @llvm.dbg.value(metadata i32 23, metadata !9, metadata !15), !dbg !1631 store i32 23, ptr %x, align 4, !dbg !16, !tbaa !1732 tail call void @llvm.dbg.value(metadata ptr %x, metadata !9, metadata !DIExpression(DW_OP_deref)), !dbg !1633 call void @g(ptr nonnull %x) #4, !dbg !2134 call void @llvm.dbg.value(metadata ptr %x, metadata !9, metadata !DIExpression(DW_OP_deref)), !dbg !1635 %0 = load i32, ptr %x, align 4, !dbg !22, !tbaa !1736 %cmp = icmp eq i32 %0, 42, !dbg !2437 br i1 %cmp, label %if.then, label %if.end, !dbg !2538 39if.then: ; preds = %entry40 call void @llvm.dbg.value(metadata i32 43, metadata !9, metadata !15), !dbg !1641 store i32 43, ptr %x, align 4, !dbg !26, !tbaa !1742 br label %if.end, !dbg !2643 44if.end: ; preds = %if.then, %entry45 %1 = phi i32 [ 43, %if.then ], [ %0, %entry ], !dbg !2746 call void @llvm.dbg.value(metadata ptr %x, metadata !9, metadata !DIExpression(DW_OP_deref)), !dbg !1647 call void @llvm.lifetime.end(i64 4, ptr %x) #4, !dbg !2848 ret i32 %1, !dbg !2949}50 51; Function Attrs: argmemonly nounwind52declare void @llvm.lifetime.start(i64, ptr nocapture) #153 54declare void @g(ptr) #455 56; Function Attrs: argmemonly nounwind57declare void @llvm.lifetime.end(i64, ptr nocapture) #158 59; Function Attrs: nounwind readnone60declare void @llvm.dbg.value(metadata, metadata, metadata) #361 62attributes #0 = { nounwind ssp uwtable }63attributes #1 = { argmemonly nounwind }64attributes #3 = { nounwind readnone }65attributes #4 = { nounwind }66 67!llvm.dbg.cu = !{!0}68!llvm.module.flags = !{!10, !11, !12}69!llvm.ident = !{!13}70 71!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.8.0 (trunk 255890) (llvm/trunk 255919)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)72!1 = !DIFile(filename: "constant.c", directory: "")73!2 = !{}74!4 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 2, type: !5, isLocal: false, isDefinition: true, scopeLine: 2, isOptimized: true, unit: !0, retainedNodes: !8)75!5 = !DISubroutineType(types: !6)76!6 = !{!7}77!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)78!8 = !{!9}79!9 = !DILocalVariable(name: "x", scope: !4, file: !1, line: 3, type: !7)80!10 = !{i32 2, !"Dwarf Version", i32 2}81!11 = !{i32 2, !"Debug Info Version", i32 3}82!12 = !{i32 1, !"PIC Level", i32 2}83!13 = !{!"clang version 3.8.0 (trunk 255890) (llvm/trunk 255919)"}84!14 = !DILocation(line: 3, column: 3, scope: !4)85!15 = !DIExpression()86!16 = !DILocation(line: 3, column: 7, scope: !4)87!17 = !{!18, !18, i64 0}88!18 = !{!"int", !19, i64 0}89!19 = !{!"omnipotent char", !20, i64 0}90!20 = !{!"Simple C/C++ TBAA"}91!21 = !DILocation(line: 4, column: 3, scope: !4)92!22 = !DILocation(line: 5, column: 7, scope: !23)93!23 = distinct !DILexicalBlock(scope: !4, file: !1, line: 5, column: 7)94!24 = !DILocation(line: 5, column: 9, scope: !23)95!25 = !DILocation(line: 5, column: 7, scope: !4)96!26 = !DILocation(line: 6, column: 5, scope: !23)97!27 = !DILocation(line: 7, column: 10, scope: !4)98!28 = !DILocation(line: 8, column: 1, scope: !4)99!29 = !DILocation(line: 7, column: 3, scope: !4)100