1 ; RUN: llc %s -mtriple=x86_64-unknown-unknown -use-unknown-locations=Enable -o - | FileCheck %s
3 ; Generated with "clang -gline-tables-only -c -emit-llvm -o - | opt -sroa -S"
9 ; int test(int a, int b) {
17 ; When tail-merging the debug location of the common tail should be removed.
20 ; CHECK: movl %edi, [[REG:%.*]]
21 ; CHECK: testl %esi, %esi
22 ; CHECK: je [[ELSE:.LBB[0-9]+_[0-9]+]]
25 ; CHECK: jmp [[TAIL:.LBB[0-9]+_[0-9]+]]
31 ; CHECK: addl [[REG]], %eax
34 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
35 target triple = "x86_64-unknown-linux-gnu"
37 define i32 @test(i32 %a, i32 %b) !dbg !6 {
39 %tobool = icmp ne i32 %b, 0, !dbg !8
40 br i1 %tobool, label %if.then, label %if.else, !dbg !8
42 if.then: ; preds = %entry
43 %call = call i32 @foo(i32 %a), !dbg !9
44 %add = add nsw i32 %a, %call, !dbg !10
45 br label %if.end, !dbg !11
47 if.else: ; preds = %entry
48 %call1 = call i32 @bar(i32 %a), !dbg !12
49 %add2 = add nsw i32 %a, %call1, !dbg !13
52 if.end: ; preds = %if.else, %if.then
53 %a.addr.0 = phi i32 [ %add, %if.then ], [ %add2, %if.else ]
54 ret i32 %a.addr.0, !dbg !14
61 !llvm.module.flags = !{!3, !4}
63 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2)
64 !1 = !DIFile(filename: "test.c", directory: "")
66 !3 = !{i32 2, !"Dwarf Version", i32 4}
67 !4 = !{i32 2, !"Debug Info Version", i32 3}
68 !6 = distinct !DISubprogram(name: "test", scope: !1, file: !1, line: 4, type: !7, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
69 !7 = !DISubroutineType(types: !2)
70 !8 = !DILocation(line: 5, column: 6, scope: !6)
71 !9 = !DILocation(line: 6, column: 10, scope: !6)
72 !10 = !DILocation(line: 6, column: 7, scope: !6)
73 !11 = !DILocation(line: 6, column: 5, scope: !6)
74 !12 = !DILocation(line: 8, column: 10, scope: !6)
75 !13 = !DILocation(line: 8, column: 7, scope: !6)
76 !14 = !DILocation(line: 9, column: 3, scope: !6)