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1; Test dwarf codegen of DW_OP_minus.2; RUN: llc -filetype=obj < %s | llvm-dwarfdump -v - | FileCheck %s3; RUN: llc -dwarf-version=2 -filetype=obj < %s | llvm-dwarfdump -v - \4; RUN: | FileCheck %s --check-prefix=DWARF25; RUN: llc -dwarf-version=3 -filetype=obj < %s | llvm-dwarfdump -v - \6; RUN: | FileCheck %s --check-prefix=DWARF27 8; This was derived manually from:9; int inc(int i) {10; return i+1;11; }12 13; DWARF2: .debug_info14; DWARF2: DW_TAG_formal_parameter15; DWARF2-NEXT: DW_AT_name {{.*}}"i"16; DWARF2-NOT: DW_AT_location17 18; CHECK: .debug_loc contents:19; CHECK: 0x00000000:20; 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_value21; rax+0, constu 0xffffffff, and, constu 0x00000001, minus, stack-value22 23source_filename = "minus.c"24target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"25target triple = "x86_64-apple-macosx10.12.0"26 27define i32 @inc(i32 %i) local_unnamed_addr #1 !dbg !7 {28entry:29 %add = add nsw i32 %i, 1, !dbg !1530 tail call void @llvm.dbg.value(metadata i32 %add, metadata !12, metadata !13), !dbg !1431 ret i32 %add, !dbg !1632}33 34declare void @llvm.dbg.value(metadata, metadata, metadata) #135 36attributes #1 = { nounwind readnone }37 38!llvm.dbg.cu = !{!0}39!llvm.module.flags = !{!3, !4, !5}40!llvm.ident = !{!6}41 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")44!2 = !{}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)51!9 = !{!10, !10}52!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)53!11 = !{!12}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)59