1; RUN: llc %s -filetype=obj -o - | llvm-dwarfdump -v - | FileCheck %s
2; Test that multi-DW_OP_piece expressions are emitted for FI variables.
3;
4; CHECK: .debug_info contents:
5; CHECK: DW_TAG_subprogram
6; CHECK:   DW_AT_abstract_origin
7; CHECK: DW_TAG_variable
8; CHECK-NEXT:   DW_AT_location [DW_FORM_exprloc]	(DW_OP_fbreg -4, DW_OP_piece 0x2, DW_OP_fbreg -8, DW_OP_piece 0x2)
9; CHECK-NEXT:   DW_AT_abstract_origin {{.*}}"a"
10; Inlined variable, not to be merged.
11; CHECK-NOT: DW_TAG
12; CHECK: DW_TAG_inlined_subroutine
13; CHECK-NOT: DW_TAG
14; CHECK:   DW_TAG_variable
15; CHECK-NEXT:     DW_AT_location
16; CHECK-NEXT:   DW_AT_abstract_origin {{.*}}"a"
17
18; ModuleID = '/tmp/t.c'
19source_filename = "/tmp/t.c"
20target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
21target triple = "x86_64-apple-macosx10.12.0"
22
23; Function Attrs: noinline nounwind optnone ssp uwtable
24define void @f() #0 !dbg !8 {
25entry:
26  %a = alloca i16, align 4
27  %b = alloca i16, align 4
28  call void @llvm.dbg.declare(metadata i16* %a, metadata !11, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 16)), !dbg !14
29  store i16 1, i16* %a, align 4, !dbg !14
30  call void @llvm.dbg.declare(metadata i16* %b, metadata !11, metadata !DIExpression(DW_OP_LLVM_fragment, 16, 16)), !dbg !16
31  call void @llvm.dbg.declare(metadata i16* %a, metadata !11, metadata !13), !dbg !17
32  store i16 2, i16* %b, align 4, !dbg !17
33  ret void
34}
35
36; Function Attrs: nounwind readnone speculatable
37declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
38
39attributes #0 = { noinline nounwind optnone ssp uwtable }
40attributes #1 = { nounwind readnone speculatable }
41
42!llvm.dbg.cu = !{!0}
43!llvm.module.flags = !{!3, !4, !5, !6}
44
45!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "adrian", emissionKind: FullDebug)
46!1 = !DIFile(filename: "/tmp/t.c", directory: "/")
47!3 = !{i32 2, !"Dwarf Version", i32 4}
48!4 = !{i32 2, !"Debug Info Version", i32 3}
49!5 = !{i32 1, !"wchar_size", i32 4}
50!6 = !{i32 7, !"PIC Level", i32 2}
51!8 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 1, type: !9, isLocal: false, isDefinition: true, scopeLine: 1, isOptimized: false, unit: !0)
52!9 = !DISubroutineType(types: !10)
53!10 = !{null}
54!11 = !DILocalVariable(name: "a", scope: !8, file: !1, line: 2, type: !12)
55!12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
56!13 = !DIExpression()
57!14 = !DILocation(line: 2, column: 7, scope: !8)
58!15 = !DILocalVariable(name: "b", scope: !8, file: !1, line: 3, type: !12)
59!16 = !DILocation(line: 3, column: 7, scope: !8)
60!17 = !DILocation(line: 3, column: 7, scope: !8, inlinedAt: !16)
61