1 ; Test dwarf codegen of DW_OP_minus.
2 ; RUN: llc -filetype=obj < %s | llvm-dwarfdump -v - | FileCheck %s
3 ; RUN: llc -dwarf-version=2 -filetype=obj < %s | llvm-dwarfdump -v - \
4 ; RUN: | FileCheck %s --check-prefix=DWARF2
5 ; RUN: llc -dwarf-version=3 -filetype=obj < %s | llvm-dwarfdump -v - \
6 ; RUN: | FileCheck %s --check-prefix=DWARF2
8 ; This was derived manually from:
14 ; DWARF2: DW_TAG_formal_parameter
15 ; DWARF2-NEXT: DW_AT_name {{.*}}"i"
16 ; DWARF2-NOT: DW_AT_location
18 ; CHECK: .debug_loc contents:
20 ; CHECK-NEXT: [0x0000000000000003, 0x0000000000000004): DW_OP_breg0 RAX+0, DW_OP_constu 0xffffffff, DW_OP_and, DW_OP_lit1, DW_OP_minus, DW_OP_stack_value
21 ; rax+0, constu 0xffffffff, and, constu 0x00000001, minus, stack-value
23 source_filename = "minus.c"
24 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
25 target triple = "x86_64-apple-macosx10.12.0"
27 define i32 @inc(i32 %i) local_unnamed_addr #1 !dbg !7 {
29 %add = add nsw i32 %i, 1, !dbg !15
30 tail call void @llvm.dbg.value(metadata i32 %add, metadata !12, metadata !13), !dbg !14
31 ret i32 %add, !dbg !16
34 declare void @llvm.dbg.value(metadata, metadata, metadata) #1
36 attributes #1 = { nounwind readnone }
39 !llvm.module.flags = !{!3, !4, !5}
42 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 4.0.0 (trunk 286322) (llvm/trunk 286305)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
43 !1 = !DIFile(filename: "minus.c", directory: "/tmp")
45 !3 = !{i32 2, !"Dwarf Version", i32 4}
46 !4 = !{i32 2, !"Debug Info Version", i32 3}
47 !5 = !{i32 1, !"PIC Level", i32 2}
48 !6 = !{!"clang version 4.0.0 (trunk 286322) (llvm/trunk 286305)"}
49 !7 = distinct !DISubprogram(name: "inc", scope: !1, file: !1, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !11)
50 !8 = !DISubroutineType(types: !9)
52 !10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
54 !12 = !DILocalVariable(name: "i", arg: 1, scope: !7, file: !1, line: 1, type: !10)
55 !13 = !DIExpression(DW_OP_constu, 1, DW_OP_minus, DW_OP_stack_value)
56 !14 = !DILocation(line: 1, column: 13, scope: !7)
57 !15 = !DILocation(line: 2, column: 11, scope: !7)
58 !16 = !DILocation(line: 2, column: 3, scope: !7)