1; RUN: llvm-link %s %S/Inputs/replaced-function-matches-first-subprogram.ll -S | FileCheck %s
2
3; Generated from C++ source:
4;
5; // repro/t.h
6; template <class T> struct Class {
7;   int foo() { return 0; }
8; };
9; // repro/d1/t1.cpp
10; #include "t.h"
11; int foo() { return Class<int>().foo(); }
12; // repro/d2/t2.cpp
13; #include "t.h"
14; template struct Class<int>;
15
16%struct.Class = type { i8 }
17
18define i32 @_Z3foov() {
19entry:
20  %tmp = alloca %struct.Class, align 1
21  %call = call i32 @_ZN5ClassIiE3fooEv(%struct.Class* %tmp), !dbg !14
22  ret i32 %call, !dbg !14
23}
24
25; CHECK: define weak_odr i32 @_ZN5ClassIiE3fooEv(%struct.Class* %this){{.*}}{
26; CHECK-NOT: }
27; CHECK: !dbg ![[LOC:[0-9]+]]
28define linkonce_odr i32 @_ZN5ClassIiE3fooEv(%struct.Class* %this) align 2 {
29entry:
30  %this.addr = alloca %struct.Class*, align 8
31  store %struct.Class* %this, %struct.Class** %this.addr, align 8
32  %this1 = load %struct.Class** %this.addr
33  ret i32 0, !dbg !15
34}
35
36; CHECK: !llvm.dbg.cu = !{![[CU1:[0-9]+]], ![[CU2:[0-9]+]]}
37!llvm.dbg.cu = !{!0}
38!llvm.module.flags = !{!10, !11, !12}
39!llvm.ident = !{!13}
40
41; Extract out the list of subprograms from each compile unit.
42; CHECK-DAG: ![[CU1]] = !{!"0x11{{[^"]+}}", {{[^,]+}}, {{[^,]+}}, {{[^,]+}}, ![[SPs1:[0-9]+]],
43; CHECK-DAG: ![[CU2]] = !{!"0x11{{[^"]+}}", {{[^,]+}}, {{[^,]+}}, {{[^,]+}}, ![[SPs2:[0-9]+]],
44!0 = !{!"0x11\004\00clang version 3.6.0 (trunk 224193) (llvm/trunk 224197)\000\00\000\00\002", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [/Users/dexonsmith/data/llvm/staging/test/Linker/repro/d1/t1.cpp] [DW_LANG_C_plus_plus]
45!1 = !{!"t1.cpp", !"/Users/dexonsmith/data/llvm/staging/test/Linker/repro/d1"}
46!2 = !{}
47
48; Extract out each compile unit's single subprogram.  The replaced subprogram
49; should be dropped by the first compile unit.
50; CHECK-DAG: ![[SPs1]] = !{![[SP1:[0-9]+]]}
51; CHECK-DAG: ![[SPs2]] = !{![[SP2:[0-9]+]]}
52!3 = !{!4, !7}
53!4 = !{!"0x2e\00foo\00foo\00\002\000\001\000\000\00256\000\002", !1, !5, !6, null, i32 ()* @_Z3foov, null, null, !2} ; [ DW_TAG_subprogram ] [line 2] [def] [foo]
54!5 = !{!"0x29", !1}    ; [ DW_TAG_file_type ] [/Users/dexonsmith/data/llvm/staging/test/Linker/repro/d1/t1.cpp]
55!6 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
56
57; Extract out the file from the replaced subprogram.  Confirm that each
58; subprogram is pointing at the correct function.
59; CHECK-DAG: ![[SP1]] = !{!"0x2e{{[^"]+}}", {{.*}}, i32 ()* @_Z3foov,
60; CHECK-DAG: ![[SP2]] = !{!"0x2e{{[^"]+}}", ![[FILE:[0-9]+]], {{.*}}, i32 (%struct.Class*)* @_ZN5ClassIiE3fooEv,
61!7 = !{!"0x2e\00foo\00foo\00\002\000\001\000\000\00256\000\002", !8, !9, !6, null, i32 (%struct.Class*)* @_ZN5ClassIiE3fooEv, null, null, !2} ; [ DW_TAG_subprogram ] [line 2] [def] [foo]
62
63; The new subprogram should be pointing at the new directory.
64; CHECK-DAG: ![[FILE]] = !{!"../t.h", !"/Users/dexonsmith/data/llvm/staging/test/Linker/repro/d2"}
65!8 = !{!"../t.h", !"/Users/dexonsmith/data/llvm/staging/test/Linker/repro/d1"}
66!9 = !{!"0x29", !8}    ; [ DW_TAG_file_type ] [/Users/dexonsmith/data/llvm/staging/test/Linker/repro/d1/../t.h]
67!10 = !{i32 2, !"Dwarf Version", i32 2}
68!11 = !{i32 2, !"Debug Info Version", i32 2}
69!12 = !{i32 1, !"PIC Level", i32 2}
70!13 = !{!"clang version 3.6.0 (trunk 224193) (llvm/trunk 224197)"}
71!14 = !MDLocation(line: 2, column: 20, scope: !4)
72
73; The same subprogram should be pointed to by inside the !dbg reference.
74; CHECK: ![[LOC]] = !MDLocation(line: 2, column: 15, scope: ![[SP2]])
75!15 = !MDLocation(line: 2, column: 15, scope: !7)
76