1 ; RUN: llc -O1 -filetype=obj -o - %s | llvm-dwarfdump -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 {{.*}}({{.*}}
25 ; CHECK-NEXT: [0x{{0*.*}}, 0x[[C1:.*]]): DW_OP_consts +3
26 ; CHECK-NEXT: [0x[[C1]], 0x[[C2:.*]]): DW_OP_consts +7
27 ; CHECK-NEXT: [0x[[C2]], 0x[[R1:.*]]): DW_OP_reg0 RAX
28 ; CHECK-NEXT: [0x[[R1]], 0x[[R2:.*]]): DW_OP_breg7 RSP+4)
30 ; CHECK: DW_AT_name{{.*}}"i"
32 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
33 target triple = "x86_64-apple-macosx10.9.0"
35 ; Function Attrs: nounwind ssp uwtable
36 define i32 @foo() #0 !dbg !4 {
38 %i = alloca i32, align 4
39 call void @llvm.dbg.value(metadata i32 3, metadata !10, metadata !DIExpression()), !dbg !15
40 %call = call i32 @f3(i32 3) #3, !dbg !16
41 call void @llvm.dbg.value(metadata i32 7, metadata !10, metadata !DIExpression()), !dbg !18
42 %call1 = call i32 (...) @f1() #3, !dbg !19
43 call void @llvm.dbg.value(metadata i32 %call1, metadata !10, metadata !DIExpression()), !dbg !19
44 store i32 %call1, i32* %i, align 4, !dbg !19, !tbaa !20
45 call void @llvm.dbg.value(metadata i32* %i, metadata !10, metadata !DIExpression(DW_OP_deref)), !dbg !24
46 call void @f2(i32* %i) #3, !dbg !24
54 declare void @f2(i32*)
56 ; Function Attrs: nounwind readnone
57 declare void @llvm.dbg.value(metadata, metadata, metadata) #2
59 attributes #0 = { nounwind ssp uwtable }
60 attributes #2 = { nounwind readnone }
61 attributes #3 = { nounwind }
64 !llvm.module.flags = !{!11, !12}
67 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
68 !1 = !DIFile(filename: "dbg-value-const-byref.c", directory: "")
70 !4 = distinct !DISubprogram(name: "foo", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !0, scopeLine: 5, file: !1, scope: !5, type: !6, retainedNodes: !9)
71 !5 = !DIFile(filename: "dbg-value-const-byref.c", directory: "")
72 !6 = !DISubroutineType(types: !7)
74 !8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
76 !10 = !DILocalVariable(name: "i", line: 6, scope: !4, file: !5, type: !8)
77 !11 = !{i32 2, !"Dwarf Version", i32 2}
78 !12 = !{i32 1, !"Debug Info Version", i32 3}
79 !13 = !{!"clang version 3.5.0 "}
81 !15 = !DILocation(line: 6, scope: !4)
82 !16 = !DILocation(line: 7, scope: !4)
84 !18 = !DILocation(line: 8, scope: !4)
85 !19 = !DILocation(line: 9, scope: !4)
86 !20 = !{!21, !21, i64 0}
87 !21 = !{!"int", !22, i64 0}
88 !22 = !{!"omnipotent char", !23, i64 0}
89 !23 = !{!"Simple C/C++ TBAA"}
90 !24 = !DILocation(line: 10, scope: !4)
91 !25 = !DILocation(line: 11, scope: !4)