3 ; From (clang -g -c -O0):
9 ; int main(int argc, char** argv) {
10 ; int array[4] = { 0, 1, 2, 3 };
15 ; RUN: opt %s -O2 -S -o - | FileCheck %s
16 ; Test that we correctly lower dbg.declares for arrays.
18 ; CHECK: define i32 @main
19 ; CHECK: call void @llvm.dbg.value(metadata i32 42, i64 0, metadata ![[ARRAY:[0-9]+]], metadata ![[EXPR:[0-9]+]])
20 ; CHECK: ![[ARRAY]] = !DILocalVariable(name: "array",{{.*}} line: 6
21 ; CHECK: ![[EXPR]] = !DIExpression(DW_OP_bit_piece, 0, 32)
22 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
23 target triple = "x86_64-apple-macosx10.9.0"
25 @main.array = private unnamed_addr constant [4 x i32] [i32 0, i32 1, i32 2, i32 3], align 16
27 ; Function Attrs: nounwind ssp uwtable
28 define void @f(i32* %p) #0 !dbg !4 {
30 %p.addr = alloca i32*, align 8
31 store i32* %p, i32** %p.addr, align 8
32 call void @llvm.dbg.declare(metadata i32** %p.addr, metadata !19, metadata !DIExpression()), !dbg !20
33 %0 = load i32*, i32** %p.addr, align 8, !dbg !21
34 %arrayidx = getelementptr inbounds i32, i32* %0, i64 0, !dbg !21
35 store i32 42, i32* %arrayidx, align 4, !dbg !21
39 ; Function Attrs: nounwind readnone
40 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
42 ; Function Attrs: nounwind ssp uwtable
43 define i32 @main(i32 %argc, i8** %argv) #0 !dbg !10 {
45 %retval = alloca i32, align 4
46 %argc.addr = alloca i32, align 4
47 %argv.addr = alloca i8**, align 8
48 %array = alloca [4 x i32], align 16
49 store i32 0, i32* %retval
50 store i32 %argc, i32* %argc.addr, align 4
51 call void @llvm.dbg.declare(metadata i32* %argc.addr, metadata !23, metadata !DIExpression()), !dbg !24
52 store i8** %argv, i8*** %argv.addr, align 8
53 call void @llvm.dbg.declare(metadata i8*** %argv.addr, metadata !25, metadata !DIExpression()), !dbg !24
54 call void @llvm.dbg.declare(metadata [4 x i32]* %array, metadata !26, metadata !DIExpression()), !dbg !30
55 %0 = bitcast [4 x i32]* %array to i8*, !dbg !30
56 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %0, i8* bitcast ([4 x i32]* @main.array to i8*), i64 16, i32 16, i1 false), !dbg !30
57 %arraydecay = getelementptr inbounds [4 x i32], [4 x i32]* %array, i32 0, i32 0, !dbg !31
58 call void @f(i32* %arraydecay), !dbg !31
59 %arrayidx = getelementptr inbounds [4 x i32], [4 x i32]* %array, i32 0, i64 0, !dbg !32
60 %1 = load i32, i32* %arrayidx, align 4, !dbg !32
64 ; Function Attrs: nounwind
65 declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #2
67 attributes #0 = { nounwind ssp uwtable }
68 attributes #1 = { nounwind readnone }
69 attributes #2 = { nounwind }
72 !llvm.module.flags = !{!16, !17}
75 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
76 !1 = !DIFile(filename: "array.c", directory: "")
79 !4 = distinct !DISubprogram(name: "f", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, variables: !2)
80 !5 = !DIFile(filename: "array.c", directory: "")
81 !6 = !DISubroutineType(types: !7)
83 !8 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !9)
84 !9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
85 !10 = distinct !DISubprogram(name: "main", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 5, file: !1, scope: !5, type: !11, variables: !2)
86 !11 = !DISubroutineType(types: !12)
88 !13 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !14)
89 !14 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !15)
90 !15 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
91 !16 = !{i32 2, !"Dwarf Version", i32 2}
92 !17 = !{i32 1, !"Debug Info Version", i32 3}
93 !18 = !{!"clang version 3.5.0 "}
94 !19 = !DILocalVariable(name: "p", line: 1, arg: 1, scope: !4, file: !5, type: !8)
95 !20 = !DILocation(line: 1, scope: !4)
96 !21 = !DILocation(line: 2, scope: !4)
97 !22 = !DILocation(line: 3, scope: !4)
98 !23 = !DILocalVariable(name: "argc", line: 5, arg: 1, scope: !10, file: !5, type: !9)
99 !24 = !DILocation(line: 5, scope: !10)
100 !25 = !DILocalVariable(name: "argv", line: 5, arg: 2, scope: !10, file: !5, type: !13)
101 !26 = !DILocalVariable(name: "array", line: 6, scope: !10, file: !5, type: !27)
102 !27 = !DICompositeType(tag: DW_TAG_array_type, size: 128, align: 32, baseType: !9, elements: !28)
104 !29 = !DISubrange(count: 4)
105 !30 = !DILocation(line: 6, scope: !10)
106 !31 = !DILocation(line: 7, scope: !10)
107 !32 = !DILocation(line: 8, scope: !10)