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; RUN: llc -stop-after=tailduplication < %s | FileCheck %s
;
; Check that DebugLoc attached to the branch instruction of
; 'while.cond1.preheader.lr.ph' survives after tailduplication pass.
;
; CHECK: [[DLOC:![0-9]+]] = !DILocation(line: 9, column: 5, scope: !{{[0-9]+}})
; CHECK: [[VREG:%[^ ]+]]:gr64 = COPY %rdi
; CHECK: TEST64rr [[VREG]], [[VREG]]
; CHECK-NEXT: JE_1 {{.+}}, debug-location [[DLOC]]
; CHECK-NEXT: JMP_1 {{.+}}, debug-location [[DLOC]]
target triple = "x86_64-unknown-linux-gnu"
%struct.Node = type { %struct.Node* }
define i32 @foo(%struct.Node* readonly %node, %struct.Node* readnone %root) !dbg !6 {
entry:
%cmp = icmp eq %struct.Node* %node, %root, !dbg !8
br i1 %cmp, label %while.end4, label %while.cond1.preheader.lr.ph, !dbg !10
while.cond1.preheader.lr.ph: ; preds = %entry
%tobool = icmp eq %struct.Node* %node, null
br i1 %tobool, label %while.cond1.preheader.us.preheader, label %while.body2.preheader, !dbg !11
while.body2.preheader: ; preds = %while.cond1.preheader.lr.ph
br label %while.body2, !dbg !11
while.cond1.preheader.us.preheader: ; preds = %while.cond1.preheader.lr.ph
br label %while.cond1.preheader.us, !dbg !10
while.cond1.preheader.us: ; preds = %while.cond1.preheader.us.preheader, %while.cond1.preheader.us
br label %while.cond1.preheader.us, !dbg !10
while.body2: ; preds = %while.body2.preheader, %while.body2
br label %while.body2, !dbg !11
while.end4: ; preds = %entry
ret i32 0, !dbg !12
}
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, isOptimized: true, emissionKind: LineTablesOnly)
!1 = !DIFile(filename: "foo.c", directory: "b/")
!2 = !{}
!3 = !{i32 2, !"Dwarf Version", i32 4}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!5 = !{}
!6 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 5, type: !7, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !2)
!7 = !DISubroutineType(types: !2)
!8 = !DILocation(line: 7, column: 15, scope: !9)
!9 = !DILexicalBlockFile(scope: !6, file: !1, discriminator: 2)
!10 = !DILocation(line: 7, column: 3, scope: !9)
!11 = !DILocation(line: 9, column: 5, scope: !9)
!12 = !DILocation(line: 14, column: 3, scope: !6)
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