3 ; From (clang -g -c -O1):
9 ; int main(int argc, char** argv) {
10 ; int array[4] = { 0, 1, 2, 3 };
15 ; RUN: llc -filetype=asm %s -o - | FileCheck %s
16 ; RUN: llc -filetype=obj %s -o - | llvm-dwarfdump -v - --debug-info | FileCheck %s --check-prefix=DWARF
19 ; CHECK: movaps {{.*}}, (%rsp)
20 ; CHECK: movq %rsp, %rdi
23 ; DWARF: DW_TAG_variable
24 ; DWARF-NEXT: DW_AT_location [DW_FORM_exprloc] (DW_OP_fbreg +0)
25 ; DWARF-NEXT: DW_AT_name [DW_FORM_strp] ( {{.*}} = "array")
27 ; ModuleID = '/tmp/array.c'
28 source_filename = "/tmp/array.c"
29 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
30 target triple = "x86_64-apple-macosx10.12.0"
32 @main.array = private unnamed_addr constant [4 x i32] [i32 0, i32 1, i32 2, i32 3], align 16
34 ; Function Attrs: nounwind ssp uwtable
35 define void @f(ptr nocapture %p) local_unnamed_addr #0 !dbg !8 {
37 tail call void @llvm.dbg.value(metadata ptr %p, metadata !14, metadata !15), !dbg !16
38 store i32 42, ptr %p, align 4, !dbg !17, !tbaa !18
42 ; Function Attrs: nounwind readnone speculatable
43 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
45 ; Function Attrs: nounwind ssp uwtable
46 define i32 @main(i32 %argc, ptr nocapture readnone %argv) local_unnamed_addr #0 !dbg !23 {
48 %array = alloca [4 x i32], align 16
49 tail call void @llvm.dbg.value(metadata i32 %argc, metadata !30, metadata !15), !dbg !36
50 tail call void @llvm.dbg.value(metadata ptr %argv, metadata !31, metadata !15), !dbg !37
51 call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %array) #3, !dbg !38
52 tail call void @llvm.dbg.declare(metadata ptr %array, metadata !32, metadata !15), !dbg !39
53 call void @llvm.memcpy.p0.p0.i64(ptr align 16 nonnull %array, ptr align 16 @main.array, i64 16, i1 false), !dbg !39
54 call void @f(ptr nonnull %array), !dbg !41
55 %0 = load i32, ptr %array, align 16, !dbg !42, !tbaa !18
56 call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %array) #3, !dbg !43
60 ; Function Attrs: argmemonly nounwind
61 declare void @llvm.lifetime.start.p0(i64, ptr nocapture) #2
63 ; Function Attrs: argmemonly nounwind
64 declare void @llvm.memcpy.p0.p0.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i1) #2
66 ; Function Attrs: argmemonly nounwind
67 declare void @llvm.lifetime.end.p0(i64, ptr nocapture) #2
69 ; Function Attrs: nounwind readnone speculatable
70 declare void @llvm.dbg.value(metadata, metadata, metadata) #1
72 attributes #0 = { nounwind ssp uwtable }
73 attributes #1 = { nounwind readnone speculatable }
74 attributes #2 = { argmemonly nounwind }
75 attributes #3 = { nounwind }
78 !llvm.module.flags = !{!3, !4, !5, !6}
81 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 5.0.0 (trunk 303873) (llvm/trunk 303875)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
82 !1 = !DIFile(filename: "/tmp/array.c", directory: "/")
84 !3 = !{i32 2, !"Dwarf Version", i32 4}
85 !4 = !{i32 2, !"Debug Info Version", i32 3}
86 !5 = !{i32 1, !"wchar_size", i32 4}
87 !6 = !{i32 7, !"PIC Level", i32 2}
88 !7 = !{!"clang version 5.0.0 (trunk 303873) (llvm/trunk 303875)"}
89 !8 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 1, type: !9, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !13)
90 !9 = !DISubroutineType(types: !10)
92 !11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64)
93 !12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
95 !14 = !DILocalVariable(name: "p", arg: 1, scope: !8, file: !1, line: 1, type: !11)
97 !16 = !DILocation(line: 1, column: 13, scope: !8)
98 !17 = !DILocation(line: 2, column: 8, scope: !8)
99 !18 = !{!19, !19, i64 0}
100 !19 = !{!"int", !20, i64 0}
101 !20 = !{!"omnipotent char", !21, i64 0}
102 !21 = !{!"Simple C/C++ TBAA"}
103 !22 = !DILocation(line: 3, column: 1, scope: !8)
104 !23 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 5, type: !24, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !29)
105 !24 = !DISubroutineType(types: !25)
106 !25 = !{!12, !12, !26}
107 !26 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !27, size: 64)
108 !27 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !28, size: 64)
109 !28 = !DIBasicType(name: "char", size: 8, encoding: DW_ATE_signed_char)
110 !29 = !{!30, !31, !32}
111 !30 = !DILocalVariable(name: "argc", arg: 1, scope: !23, file: !1, line: 5, type: !12)
112 !31 = !DILocalVariable(name: "argv", arg: 2, scope: !23, file: !1, line: 5, type: !26)
113 !32 = !DILocalVariable(name: "array", scope: !23, file: !1, line: 6, type: !33)
114 !33 = !DICompositeType(tag: DW_TAG_array_type, baseType: !12, size: 128, elements: !34)
116 !35 = !DISubrange(count: 4)
117 !36 = !DILocation(line: 5, column: 14, scope: !23)
118 !37 = !DILocation(line: 5, column: 27, scope: !23)
119 !38 = !DILocation(line: 6, column: 3, scope: !23)
120 !39 = !DILocation(line: 6, column: 7, scope: !23)
121 !40 = !DILocation(line: 7, column: 5, scope: !23)
122 !41 = !DILocation(line: 7, column: 3, scope: !23)
123 !42 = !DILocation(line: 8, column: 10, scope: !23)
124 !43 = !DILocation(line: 9, column: 1, scope: !23)
125 !44 = !DILocation(line: 8, column: 3, scope: !23)