| ; RUN: llc %s -filetype=obj -o - | llvm-dwarfdump -v - | FileCheck %s |
| ; Test that multi-DW_OP_piece expressions are emitted for FI variables. |
| ; |
| ; CHECK: .debug_info contents: |
| ; CHECK: DW_TAG_subprogram |
| ; CHECK: DW_AT_abstract_origin |
| ; CHECK: DW_TAG_variable |
| ; CHECK-NEXT: DW_AT_location [DW_FORM_exprloc] (DW_OP_fbreg -4, DW_OP_piece 0x2, DW_OP_fbreg -8, DW_OP_piece 0x2) |
| ; CHECK-NEXT: DW_AT_abstract_origin {{.*}}"a" |
| ; Inlined variable, not to be merged. |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_inlined_subroutine |
| ; CHECK-NOT: DW_TAG |
| ; CHECK: DW_TAG_variable |
| ; CHECK-NEXT: DW_AT_location |
| ; CHECK-NEXT: DW_AT_abstract_origin {{.*}}"a" |
| |
| ; ModuleID = '/tmp/t.c' |
| source_filename = "/tmp/t.c" |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx10.12.0" |
| |
| ; Function Attrs: noinline nounwind optnone ssp uwtable |
| define void @f() #0 !dbg !8 { |
| entry: |
| %a = alloca i16, align 4 |
| %b = alloca i16, align 4 |
| call void @llvm.dbg.declare(metadata ptr %a, metadata !11, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 16)), !dbg !14 |
| store i16 1, ptr %a, align 4, !dbg !14 |
| call void @llvm.dbg.declare(metadata ptr %b, metadata !11, metadata !DIExpression(DW_OP_LLVM_fragment, 16, 16)), !dbg !16 |
| call void @llvm.dbg.declare(metadata ptr %a, metadata !11, metadata !13), !dbg !17 |
| store i16 2, ptr %b, align 4, !dbg !17 |
| ret void |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 |
| |
| attributes #0 = { noinline nounwind optnone ssp uwtable } |
| attributes #1 = { nounwind readnone speculatable } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4, !5, !6} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "adrian", emissionKind: FullDebug) |
| !1 = !DIFile(filename: "/tmp/t.c", directory: "/") |
| !3 = !{i32 2, !"Dwarf Version", i32 4} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = !{i32 1, !"wchar_size", i32 4} |
| !6 = !{i32 7, !"PIC Level", i32 2} |
| !8 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 1, type: !9, isLocal: false, isDefinition: true, scopeLine: 1, isOptimized: false, unit: !0) |
| !9 = !DISubroutineType(types: !10) |
| !10 = !{null} |
| !11 = !DILocalVariable(name: "a", scope: !8, file: !1, line: 2, type: !12) |
| !12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !13 = !DIExpression() |
| !14 = !DILocation(line: 2, column: 7, scope: !8) |
| !15 = !DILocalVariable(name: "b", scope: !8, file: !1, line: 3, type: !12) |
| !16 = !DILocation(line: 3, column: 7, scope: !8) |
| !17 = !DILocation(line: 3, column: 7, scope: !8, inlinedAt: !16) |