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' 19 source_filename = "/tmp/t.c" 20 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 21 target triple = "x86_64-apple-macosx10.12.0" 22 23 ; Function Attrs: noinline nounwind optnone ssp uwtable 24 define void @f() #0 !dbg !8 { 25 entry: 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 37 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 38 39 attributes #0 = { noinline nounwind optnone ssp uwtable } 40 attributes #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
