| ; RUN: llc < %s | FileCheck %s --check-prefix=ASM |
| ; RUN: llc -force-instr-ref-livedebugvalues=1 < %s | FileCheck %s --check-prefix=ASM |
| ; RUN: llc < %s -filetype=obj | llvm-dwarfdump - | FileCheck %s --check-prefix=DWARF |
| ; RUN: llc -force-instr-ref-livedebugvalues=1 < %s -filetype=obj | llvm-dwarfdump - | FileCheck %s --check-prefix=DWARF |
| |
| ; Values in registers should be clobbered by calls, which use a regmask instead |
| ; of individual register def operands. |
| |
| ; ASM: main: # @main |
| ; ASM: #DEBUG_VALUE: main:argc <- $ecx |
| ; ASM: movl $1, x(%rip) |
| ; ASM: callq clobber |
| ; ASM-NEXT: [[argc_range_end:.Ltmp[0-9]+]]: |
| ; ASM: #DEBUG_VALUE: main:argc <- [DW_OP_LLVM_entry_value 1] $ecx |
| |
| ; argc is the first debug location. |
| ; ASM: .Ldebug_loc1: |
| ; ASM-NEXT: .quad .Lfunc_begin0-.Lfunc_begin0 |
| ; ASM-NEXT: .quad [[argc_range_end]]-.Lfunc_begin0 |
| ; ASM-NEXT: .short 1 # Loc expr size |
| ; ASM-NEXT: .byte 82 # super-register DW_OP_reg2 |
| |
| ; argc is the first formal parameter. |
| ; DWARF: .debug_info contents: |
| ; DWARF: DW_TAG_formal_parameter |
| ; DWARF-NEXT: DW_AT_location ({{0x.*}} |
| ; DWARF-NEXT: [0x0000000000000000, 0x0000000000000013): DW_OP_reg2 RCX |
| ; DWARF-NEXT: [0x0000000000000013, 0x0000000000000043): DW_OP_GNU_entry_value(DW_OP_reg2 RCX), DW_OP_stack_value |
| ; DWARF-NEXT: DW_AT_name ("argc") |
| |
| ; ModuleID = 't.cpp' |
| source_filename = "test/DebugInfo/X86/dbg-value-regmask-clobber.ll" |
| target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-pc-windows-msvc18.0.0" |
| |
| @x = common global i32 0, align 4, !dbg !0 |
| |
| ; Function Attrs: nounwind uwtable |
| define i32 @main(i32 %argc, ptr nocapture readnone %argv) #0 !dbg !12 { |
| entry: |
| tail call void @llvm.dbg.value(metadata ptr %argv, metadata !19, metadata !21), !dbg !22 |
| tail call void @llvm.dbg.value(metadata i32 %argc, metadata !20, metadata !21), !dbg !23 |
| store volatile i32 1, ptr @x, align 4, !dbg !24, !tbaa !25 |
| tail call void @clobber() #2, !dbg !29 |
| store volatile i32 2, ptr @x, align 4, !dbg !30, !tbaa !25 |
| %0 = load volatile i32, ptr @x, align 4, !dbg !31, !tbaa !25 |
| %tobool = icmp eq i32 %0, 0, !dbg !31 |
| br i1 %tobool, label %if.else, label %if.then, !dbg !33 |
| |
| if.then: ; preds = %entry |
| store volatile i32 3, ptr @x, align 4, !dbg !34, !tbaa !25 |
| br label %if.end, !dbg !36 |
| |
| if.else: ; preds = %entry |
| |
| store volatile i32 4, ptr @x, align 4, !dbg !37, !tbaa !25 |
| br label %if.end |
| |
| if.end: ; preds = %if.else, %if.then |
| ret i32 0, !dbg !39 |
| } |
| |
| declare void @clobber() |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #1 |
| |
| attributes #0 = { nounwind uwtable } |
| attributes #1 = { nounwind readnone } |
| attributes #2 = { nounwind } |
| |
| !llvm.dbg.cu = !{!2} |
| !llvm.module.flags = !{!8, !9, !10} |
| !llvm.ident = !{!11} |
| |
| !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) |
| !1 = !DIGlobalVariable(name: "x", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true) |
| !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 3.9.0 (trunk 260617) (llvm/trunk 260619)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5) |
| !3 = !DIFile(filename: "t.cpp", directory: "D:\5Csrc\5Cllvm\5Cbuild") |
| !4 = !{} |
| !5 = !{!0} |
| !6 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !7) |
| !7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !8 = !{i32 2, !"Dwarf Version", i32 4} |
| !9 = !{i32 2, !"Debug Info Version", i32 3} |
| !10 = !{i32 1, !"PIC Level", i32 2} |
| !11 = !{!"clang version 3.9.0 (trunk 260617) (llvm/trunk 260619)"} |
| !12 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 4, type: !13, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: true, unit: !2, retainedNodes: !18) |
| !13 = !DISubroutineType(types: !14) |
| !14 = !{!7, !7, !15} |
| !15 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !16, size: 64, align: 64) |
| !16 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !17, size: 64, align: 64) |
| !17 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char) |
| !18 = !{!19, !20} |
| !19 = !DILocalVariable(name: "argv", arg: 2, scope: !12, file: !3, line: 4, type: !15) |
| !20 = !DILocalVariable(name: "argc", arg: 1, scope: !12, file: !3, line: 4, type: !7) |
| !21 = !DIExpression() |
| !22 = !DILocation(line: 4, column: 27, scope: !12) |
| !23 = !DILocation(line: 4, column: 14, scope: !12) |
| !24 = !DILocation(line: 5, column: 5, scope: !12) |
| !25 = !{!26, !26, i64 0} |
| !26 = !{!"int", !27, i64 0} |
| !27 = !{!"omnipotent char", !28, i64 0} |
| !28 = !{!"Simple C/C++ TBAA"} |
| !29 = !DILocation(line: 6, column: 3, scope: !12) |
| !30 = !DILocation(line: 7, column: 5, scope: !12) |
| !31 = !DILocation(line: 8, column: 7, scope: !32) |
| !32 = distinct !DILexicalBlock(scope: !12, file: !3, line: 8, column: 7) |
| !33 = !DILocation(line: 8, column: 7, scope: !12) |
| !34 = !DILocation(line: 9, column: 7, scope: !35) |
| !35 = distinct !DILexicalBlock(scope: !32, file: !3, line: 8, column: 10) |
| !36 = !DILocation(line: 10, column: 3, scope: !35) |
| !37 = !DILocation(line: 11, column: 7, scope: !38) |
| !38 = distinct !DILexicalBlock(scope: !32, file: !3, line: 10, column: 10) |
| !39 = !DILocation(line: 13, column: 1, scope: !12) |
| |