1; ModuleID = 'array.c'
2;
3; From (clang -g -c -O0):
4;
5; void f(int* p) {
6;   p[0] = 42;
7; }
8;
9; int main(int argc, char** argv) {
10;   int array[4] = { 0, 1, 2, 3 };
11;   f(array);
12;   return array[0];
13; }
14;
15; RUN: opt %s -O2 -S -o - | FileCheck %s
16; Test that we correctly lower dbg.declares for arrays.
17;
18; CHECK: define i32 @main
19; CHECK: call void @llvm.dbg.value(metadata i32 42, metadata ![[ARRAY:[0-9]+]], metadata !DIExpression(DW_OP_LLVM_fragment, 0, 32))
20; CHECK: ![[ARRAY]] = !DILocalVariable(name: "array",{{.*}} line: 6
21target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
22target triple = "x86_64-apple-macosx10.9.0"
23
24@main.array = private unnamed_addr constant [4 x i32] [i32 0, i32 1, i32 2, i32 3], align 16
25
26; Function Attrs: nounwind ssp uwtable
27define void @f(i32* %p) #0 !dbg !4 {
28entry:
29  %p.addr = alloca i32*, align 8
30  store i32* %p, i32** %p.addr, align 8
31  call void @llvm.dbg.declare(metadata i32** %p.addr, metadata !19, metadata !DIExpression()), !dbg !20
32  %0 = load i32*, i32** %p.addr, align 8, !dbg !21
33  %arrayidx = getelementptr inbounds i32, i32* %0, i64 0, !dbg !21
34  store i32 42, i32* %arrayidx, align 4, !dbg !21
35  ret void, !dbg !22
36}
37
38; Function Attrs: nounwind readnone
39declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
40
41; Function Attrs: nounwind ssp uwtable
42define i32 @main(i32 %argc, i8** %argv) #0 !dbg !10 {
43entry:
44  %retval = alloca i32, align 4
45  %argc.addr = alloca i32, align 4
46  %argv.addr = alloca i8**, align 8
47  %array = alloca [4 x i32], align 16
48  store i32 0, i32* %retval
49  store i32 %argc, i32* %argc.addr, align 4
50  call void @llvm.dbg.declare(metadata i32* %argc.addr, metadata !23, metadata !DIExpression()), !dbg !24
51  store i8** %argv, i8*** %argv.addr, align 8
52  call void @llvm.dbg.declare(metadata i8*** %argv.addr, metadata !25, metadata !DIExpression()), !dbg !24
53  call void @llvm.dbg.declare(metadata [4 x i32]* %array, metadata !26, metadata !DIExpression()), !dbg !30
54  %0 = bitcast [4 x i32]* %array to i8*, !dbg !30
55  call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 16 %0, i8* align 16 bitcast ([4 x i32]* @main.array to i8*), i64 16, i1 false), !dbg !30
56  %arraydecay = getelementptr inbounds [4 x i32], [4 x i32]* %array, i32 0, i32 0, !dbg !31
57  call void @f(i32* %arraydecay), !dbg !31
58  %arrayidx = getelementptr inbounds [4 x i32], [4 x i32]* %array, i32 0, i64 0, !dbg !32
59  %1 = load i32, i32* %arrayidx, align 4, !dbg !32
60  ret i32 %1, !dbg !32
61}
62
63; Function Attrs: nounwind
64declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i1) #2
65
66attributes #0 = { nounwind ssp uwtable }
67attributes #1 = { nounwind readnone }
68attributes #2 = { nounwind }
69
70!llvm.dbg.cu = !{!0}
71!llvm.module.flags = !{!16, !17}
72!llvm.ident = !{!18}
73
74!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
75!1 = !DIFile(filename: "array.c", directory: "")
76!2 = !{}
77!4 = distinct !DISubprogram(name: "f", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !1, scope: !5, type: !6, retainedNodes: !2)
78!5 = !DIFile(filename: "array.c", directory: "")
79!6 = !DISubroutineType(types: !7)
80!7 = !{null, !8}
81!8 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !9)
82!9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
83!10 = distinct !DISubprogram(name: "main", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 5, file: !1, scope: !5, type: !11, retainedNodes: !2)
84!11 = !DISubroutineType(types: !12)
85!12 = !{!9, !9, !13}
86!13 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !14)
87!14 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !15)
88!15 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
89!16 = !{i32 2, !"Dwarf Version", i32 2}
90!17 = !{i32 1, !"Debug Info Version", i32 3}
91!18 = !{!"clang version 3.5.0 "}
92!19 = !DILocalVariable(name: "p", line: 1, arg: 1, scope: !4, file: !5, type: !8)
93!20 = !DILocation(line: 1, scope: !4)
94!21 = !DILocation(line: 2, scope: !4)
95!22 = !DILocation(line: 3, scope: !4)
96!23 = !DILocalVariable(name: "argc", line: 5, arg: 1, scope: !10, file: !5, type: !9)
97!24 = !DILocation(line: 5, scope: !10)
98!25 = !DILocalVariable(name: "argv", line: 5, arg: 2, scope: !10, file: !5, type: !13)
99!26 = !DILocalVariable(name: "array", line: 6, scope: !10, file: !5, type: !27)
100!27 = !DICompositeType(tag: DW_TAG_array_type, size: 128, align: 32, baseType: !9, elements: !28)
101!28 = !{!29}
102!29 = !DISubrange(count: 4)
103!30 = !DILocation(line: 6, scope: !10)
104!31 = !DILocation(line: 7, scope: !10)
105!32 = !DILocation(line: 8, scope: !10)
106