1 ; RUN: llc -filetype=obj -o - < %s | llvm-dwarfdump -debug-info - | FileCheck %s
3 ; Checks that we're omitting the first range, as it is empty, and that we're
4 ; emitting one that spans the rest of the function. In this case, the first
5 ; range, which we omit, describes 8 bytes of the variable using DW_OP_litX,
6 ; whereas the second one only describes 4 bytes, so clobbering the whole 8 byte
7 ; fragment with the 4 bytes fragment isn't necessarily best thing to do here,
8 ; but it is what is currently being emitted. Any change here needs to be
9 ; intentional, so the test is very specific.
11 ; The variable is given a single location instead of a location list entry
12 ; because the function validThroughout has a special code path for single
13 ; locations with a constant value that start in the prologue.
15 ; CHECK: DW_TAG_inlined_subroutine
16 ; CHECK: DW_TAG_variable
17 ; CHECK-NEXT: DW_AT_location (DW_OP_lit0, DW_OP_stack_value, DW_OP_piece 0x4)
18 ; CHECK-NEXT: DW_AT_abstract_origin
20 ; Created from the following test case (PR26163) with
21 ; clang -cc1 -triple armv4t--freebsd11.0-gnueabi -emit-obj -debug-info-kind=standalone -O2 -x c test.c
23 ; typedef unsigned int size_t;
29 ; ptr memset(ptr, int, size_t);
35 ; struct timeval lifetime;
37 ; memset(&lifetime, 0, sizeof(struct timeval));
38 ; lifetime.tv_sec = value;
44 ; parse_config_file(void)
52 target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
53 target triple = "armv4t--freebsd11.0-gnueabi"
55 %struct.timeval = type { i64, i32 }
57 declare void @llvm.dbg.declare(metadata, metadata, metadata)
58 declare void @llvm.dbg.value(metadata, metadata, metadata)
62 define i32 @parse_config_file() !dbg !4 {
64 tail call void @llvm.dbg.value(metadata i32 0, metadata !15, metadata !26), !dbg !27
65 tail call void @llvm.dbg.declare(metadata ptr undef, metadata !16, metadata !26), !dbg !29
66 tail call void @llvm.dbg.value(metadata i64 0, metadata !16, metadata !30), !dbg !29
67 tail call void @llvm.dbg.value(metadata i32 0, metadata !16, metadata !31), !dbg !29
68 tail call void @foo() #3, !dbg !32
74 !llvm.module.flags = !{!22, !23, !24}
77 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.9.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
78 !1 = !DIFile(filename: "<stdin>", directory: "/home/ubuntu/bugs")
80 !4 = distinct !DISubprogram(name: "parse_config_file", scope: !5, file: !5, line: 22, type: !6, isLocal: false, isDefinition: true, scopeLine: 23, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !9)
81 !5 = !DIFile(filename: "test.c", directory: "/home/ubuntu/bugs")
82 !6 = !DISubroutineType(types: !7)
84 !8 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
86 !10 = !DILocalVariable(name: "value", scope: !4, file: !5, line: 24, type: !8)
87 !11 = distinct !DISubprogram(name: "bar", scope: !5, file: !5, line: 11, type: !12, isLocal: true, isDefinition: true, scopeLine: 12, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !14)
88 !12 = !DISubroutineType(types: !13)
91 !15 = !DILocalVariable(name: "value", arg: 1, scope: !11, file: !5, line: 11, type: !8)
92 !16 = !DILocalVariable(name: "lifetime", scope: !11, file: !5, line: 13, type: !17)
93 !17 = !DICompositeType(tag: DW_TAG_structure_type, name: "timeval", file: !5, line: 2, size: 128, align: 64, elements: !18)
95 !19 = !DIDerivedType(tag: DW_TAG_member, name: "tv_sec", scope: !17, file: !5, line: 3, baseType: !20, size: 64, align: 64)
96 !20 = !DIBasicType(name: "long long int", size: 64, align: 64, encoding: DW_ATE_signed)
97 !21 = !DIDerivedType(tag: DW_TAG_member, name: "tv_usec", scope: !17, file: !5, line: 4, baseType: !8, size: 32, align: 32, offset: 64)
98 !22 = !{i32 2, !"Debug Info Version", i32 3}
99 !23 = !{i32 1, !"wchar_size", i32 4}
100 !24 = !{i32 1, !"min_enum_size", i32 4}
101 !25 = !{!"clang version 3.9.0"}
102 !26 = !DIExpression()
103 !27 = !DILocation(line: 11, scope: !11, inlinedAt: !28)
104 !28 = distinct !DILocation(line: 26, scope: !4)
105 !29 = !DILocation(line: 13, scope: !11, inlinedAt: !28)
106 !30 = !DIExpression(DW_OP_LLVM_fragment, 0, 64)
107 !31 = !DIExpression(DW_OP_LLVM_fragment, 0, 32)
108 !32 = !DILocation(line: 18, scope: !11, inlinedAt: !28)
109 !33 = !DILocation(line: 27, scope: !4)