1; RUN: llc %s -filetype=obj -o - | llvm-dwarfdump -v - | FileCheck %s 2; RUN: llc --try-experimental-debuginfo-iterators %s -filetype=obj -o - | llvm-dwarfdump -v - | FileCheck %s 3; Test that multi-DW_OP_piece expressions are emitted for FI variables. 4; 5; CHECK: .debug_info contents: 6; CHECK: DW_TAG_subprogram 7; CHECK: DW_AT_abstract_origin 8; CHECK: DW_TAG_variable 9; CHECK-NEXT: DW_AT_location [DW_FORM_exprloc] (DW_OP_fbreg -4, DW_OP_piece 0x2, DW_OP_fbreg -8, DW_OP_piece 0x2) 10; CHECK-NEXT: DW_AT_abstract_origin {{.*}}"a" 11; Inlined variable, not to be merged. 12; CHECK-NOT: DW_TAG 13; CHECK: DW_TAG_inlined_subroutine 14; CHECK-NOT: DW_TAG 15; CHECK: DW_TAG_variable 16; CHECK-NEXT: DW_AT_location 17; CHECK-NEXT: DW_AT_abstract_origin {{.*}}"a" 18 19; ModuleID = '/tmp/t.c' 20source_filename = "/tmp/t.c" 21target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 22target triple = "x86_64-apple-macosx10.12.0" 23 24; Function Attrs: noinline nounwind optnone ssp uwtable 25define void @f() #0 !dbg !8 { 26entry: 27 %a = alloca i16, align 4 28 %b = alloca i16, align 4 29 call void @llvm.dbg.declare(metadata ptr %a, metadata !11, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 16)), !dbg !14 30 store i16 1, ptr %a, align 4, !dbg !14 31 call void @llvm.dbg.declare(metadata ptr %b, metadata !11, metadata !DIExpression(DW_OP_LLVM_fragment, 16, 16)), !dbg !16 32 call void @llvm.dbg.declare(metadata ptr %a, metadata !11, metadata !13), !dbg !17 33 store i16 2, ptr %b, align 4, !dbg !17 34 ret void 35} 36 37; Function Attrs: nounwind readnone speculatable 38declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 39 40attributes #0 = { noinline nounwind optnone ssp uwtable } 41attributes #1 = { nounwind readnone speculatable } 42 43!llvm.dbg.cu = !{!0} 44!llvm.module.flags = !{!3, !4, !5, !6} 45 46!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "adrian", emissionKind: FullDebug) 47!1 = !DIFile(filename: "/tmp/t.c", directory: "/") 48!3 = !{i32 2, !"Dwarf Version", i32 4} 49!4 = !{i32 2, !"Debug Info Version", i32 3} 50!5 = !{i32 1, !"wchar_size", i32 4} 51!6 = !{i32 7, !"PIC Level", i32 2} 52!8 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 1, type: !9, isLocal: false, isDefinition: true, scopeLine: 1, isOptimized: false, unit: !0) 53!9 = !DISubroutineType(types: !10) 54!10 = !{null} 55!11 = !DILocalVariable(name: "a", scope: !8, file: !1, line: 2, type: !12) 56!12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 57!13 = !DIExpression() 58!14 = !DILocation(line: 2, column: 7, scope: !8) 59!15 = !DILocalVariable(name: "b", scope: !8, file: !1, line: 3, type: !12) 60!16 = !DILocation(line: 3, column: 7, scope: !8) 61!17 = !DILocation(line: 3, column: 7, scope: !8, inlinedAt: !16) 62