1 ; RUN: llc -O1 -filetype=obj -o - %s | llvm-dwarfdump -debug-dump=all - | FileCheck %s
2 ; Generated with -O1 from:
16 ; Test that we generate valid debug info for optimized code,
17 ; particularly variables that are described as constants and passed
19 ; rdar://problem/14874886
21 ; CHECK: .debug_info contents:
22 ; CHECK: DW_TAG_variable
24 ; CHECK: DW_AT_location [DW_FORM_data4] ([[LOC:.*]])
26 ; CHECK: DW_AT_name{{.*}}"i"
27 ; CHECK: .debug_loc contents:
30 ; CHECK: Beginning address offset: 0x0000000000000{{.*}}
31 ; CHECK: Ending address offset: [[C1:.*]]
32 ; CHECK: Location description: 11 03
34 ; CHECK: Beginning address offset: [[C1]]
35 ; CHECK: Ending address offset: [[C2:.*]]
36 ; CHECK: Location description: 11 07
37 ; rax, piece 0x00000004
38 ; CHECK: Beginning address offset: [[C2]]
39 ; CHECK: Ending address offset: [[R1:.*]]
40 ; CHECK: Location description: 50 93 04
42 ; CHECK: Beginning address offset: [[R1]]
43 ; CHECK: Ending address offset: [[R2:.*]]
44 ; CHECK: Location description: 75 00
46 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
47 target triple = "x86_64-apple-macosx10.9.0"
49 ; Function Attrs: nounwind ssp uwtable
50 define i32 @foo() #0 {
52 %i = alloca i32, align 4
53 call void @llvm.dbg.value(metadata !14, i64 0, metadata !10, metadata !{metadata !"0x102"}), !dbg !15
54 %call = call i32 @f3(i32 3) #3, !dbg !16
55 call void @llvm.dbg.value(metadata !17, i64 0, metadata !10, metadata !{metadata !"0x102"}), !dbg !18
56 %call1 = call i32 (...)* @f1() #3, !dbg !19
57 call void @llvm.dbg.value(metadata !{i32 %call1}, i64 0, metadata !10, metadata !{metadata !"0x102"}), !dbg !19
58 store i32 %call1, i32* %i, align 4, !dbg !19, !tbaa !20
59 call void @llvm.dbg.value(metadata !{i32* %i}, i64 0, metadata !10, metadata !{metadata !"0x102"}), !dbg !24
60 call void @f2(i32* %i) #3, !dbg !24
68 declare void @f2(i32*)
70 ; Function Attrs: nounwind readnone
71 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #2
73 attributes #0 = { nounwind ssp uwtable }
74 attributes #2 = { nounwind readnone }
75 attributes #3 = { nounwind }
78 !llvm.module.flags = !{!11, !12}
81 !0 = metadata !{metadata !"0x11\0012\00clang version 3.5.0 \001\00\000\00\001", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [dbg-value-const-byref.c] [DW_LANG_C99]
82 !1 = metadata !{metadata !"dbg-value-const-byref.c", metadata !""}
84 !3 = metadata !{metadata !4}
85 !4 = metadata !{metadata !"0x2e\00foo\00foo\00\005\000\001\000\006\000\001\005", metadata !1, metadata !5, metadata !6, null, i32 ()* @foo, null, null, metadata !9} ; [ DW_TAG_subprogram ] [line 5] [def] [foo]
86 !5 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [dbg-value-const-byref.c]
87 !6 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
88 !7 = metadata !{metadata !8}
89 !8 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
90 !9 = metadata !{metadata !10}
91 !10 = metadata !{metadata !"0x100\00i\006\000", metadata !4, metadata !5, metadata !8} ; [ DW_TAG_auto_variable ] [i] [line 6]
92 !11 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
93 !12 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
94 !13 = metadata !{metadata !"clang version 3.5.0 "}
95 !14 = metadata !{i32 3}
96 !15 = metadata !{i32 6, i32 0, metadata !4, null}
97 !16 = metadata !{i32 7, i32 0, metadata !4, null}
98 !17 = metadata !{i32 7}
99 !18 = metadata !{i32 8, i32 0, metadata !4, null}
100 !19 = metadata !{i32 9, i32 0, metadata !4, null}
101 !20 = metadata !{metadata !21, metadata !21, i64 0}
102 !21 = metadata !{metadata !"int", metadata !22, i64 0}
103 !22 = metadata !{metadata !"omnipotent char", metadata !23, i64 0}
104 !23 = metadata !{metadata !"Simple C/C++ TBAA"}
105 !24 = metadata !{i32 10, i32 0, metadata !4, null}
106 !25 = metadata !{i32 11, i32 0, metadata !4, null}