1; RUN: llc < %s | FileCheck %s --check-prefix=ASM 2; RUN: llc < %s -filetype=obj | llvm-readobj --codeview - | FileCheck %s --check-prefix=OBJ 3 4; Generated from: 5; volatile int x; 6; int getint(void); 7; void putint(int); 8; static inline int inlineinc(int a) { 9; int b = a + 1; 10; ++x; 11; return b; 12; } 13; void f(int p) { 14; if (p) { 15; int a = getint(); 16; int b = inlineinc(a); 17; putint(b); 18; } else { 19; int c = getint(); 20; putint(c); 21; } 22; } 23 24; ASM: f: # @f 25; ASM: .Lfunc_begin0: 26; ASM: # %bb.0: # %entry 27; ASM: #DEBUG_VALUE: f:p <- $ecx 28; ASM: pushq %rsi 29; ASM: subq $32, %rsp 30; ASM: movl %ecx, %esi 31; ASM: [[p_ecx_esi:\.Ltmp.*]]: 32; ASM: #DEBUG_VALUE: f:p <- $esi 33; ASM: callq getint 34; ASM: [[after_getint:\.Ltmp.*]]: 35; ASM: #DEBUG_VALUE: a <- $eax 36; ASM: #DEBUG_VALUE: inlineinc:a <- $eax 37; ASM: #DEBUG_VALUE: c <- $eax 38; ASM: testl %esi, %esi 39; ASM: je .LBB0_2 40; ASM: [[after_je:\.Ltmp.*]]: 41; ASM: # %bb.1: # %if.then 42; ASM-DAG: #DEBUG_VALUE: inlineinc:a <- $eax 43; ASM-DAG: #DEBUG_VALUE: a <- $eax 44; ASM-DAG: #DEBUG_VALUE: f:p <- $esi 45; ASM: addl $1, %eax 46; ASM: [[after_inc_eax:\.Ltmp.*]]: 47; ASM: #DEBUG_VALUE: inlineinc:b <- $eax 48; ASM: #DEBUG_VALUE: b <- $eax 49; ASM: addl $1, x(%rip) 50; ASM: [[after_if:\.Ltmp.*]]: 51; ASM: .LBB0_2: # %if.else 52; ASM: #DEBUG_VALUE: f:p <- $esi 53; ASM: movl %eax, %ecx 54; ASM: addq $32, %rsp 55; ASM: popq %rsi 56; ASM: [[func_end:\.Ltmp.*]]: 57; ASM: jmp putint # TAILCALL 58 59; ASM: .short 4414 # Record kind: S_LOCAL 60; ASM: .asciz "p" 61; ASM: .cv_def_range .Lfunc_begin0 [[p_ecx_esi]], "A\021\022\000\000\000" 62; ASM: .cv_def_range [[p_ecx_esi]] [[func_end]], "A\021\027\000\000\000" 63; ASM: .short 4414 # Record kind: S_LOCAL 64; ASM: .asciz "c" 65; ASM: .cv_def_range [[after_getint]] [[after_je]], "A\021\021\000\000\000" 66; ASM: .short 4414 # Record kind: S_LOCAL 67; ASM: .asciz "a" 68; ASM: .cv_def_range [[after_getint]] [[after_inc_eax]], "A\021\021\000\000\000" 69; ASM: .short 4414 # Record kind: S_LOCAL 70; ASM: .asciz "b" 71; ASM: .cv_def_range [[after_inc_eax]] [[after_if]], "A\021\021\000\000\000" 72 73; ASM: .short 4429 # Record kind: S_INLINESITE 74; ASM: .short 4414 # Record kind: S_LOCAL 75; ASM: .asciz "a" 76; ASM: .cv_def_range [[after_getint]] [[after_inc_eax]], "A\021\021\000\000\000" 77; ASM: .short 4414 # Record kind: S_LOCAL 78; ASM: .asciz "b" 79; ASM: .cv_def_range [[after_inc_eax]] [[after_if]], "A\021\021\000\000\000" 80; ASM: .short 4430 # Record kind: S_INLINESITE_END 81 82; OBJ: Subsection [ 83; OBJ: SubSectionType: Symbols (0xF1) 84; OBJ: {{.*}}Proc{{.*}}Sym { 85; OBJ: DisplayName: f 86; OBJ: } 87; OBJ: LocalSym { 88; OBJ: Type: int (0x74) 89; OBJ: Flags [ (0x1) 90; OBJ: IsParameter (0x1) 91; OBJ: ] 92; OBJ: VarName: p 93; OBJ: } 94; OBJ: DefRangeRegisterSym { 95; OBJ: Register: ECX (0x12) 96; OBJ: LocalVariableAddrRange { 97; OBJ: OffsetStart: .text+0x0 98; OBJ: ISectStart: 0x0 99; OBJ: Range: 0x7 100; OBJ: } 101; OBJ: } 102; OBJ: DefRangeRegisterSym { 103; OBJ: Register: ESI (0x17) 104; OBJ: LocalVariableAddrRange { 105; OBJ: OffsetStart: .text+0x7 106; OBJ: ISectStart: 0x0 107; OBJ: Range: 0x1A 108; OBJ: } 109; OBJ: } 110; OBJ: LocalSym { 111; OBJ: Type: int (0x74) 112; OBJ: Flags [ (0x0) 113; OBJ: ] 114; OBJ: VarName: c 115; OBJ: } 116; OBJ: DefRangeRegisterSym { 117; OBJ: Register: EAX (0x11) 118; OBJ: LocalVariableAddrRange { 119; OBJ: OffsetStart: .text+0xC 120; OBJ: ISectStart: 0x0 121; OBJ: Range: 0x4 122; OBJ: } 123; OBJ: } 124; OBJ: LocalSym { 125; OBJ: Type: int (0x74) 126; OBJ: Flags [ (0x0) 127; OBJ: ] 128; OBJ: VarName: a 129; OBJ: } 130; OBJ: DefRangeRegisterSym { 131; OBJ: Register: EAX (0x11) 132; OBJ: LocalVariableAddrRange { 133; OBJ: OffsetStart: .text+0xC 134; OBJ: ISectStart: 0x0 135; OBJ: Range: 0x7 136; OBJ: } 137; OBJ: } 138; OBJ: LocalSym { 139; OBJ: Type: int (0x74) 140; OBJ: Flags [ (0x0) 141; OBJ: ] 142; OBJ: VarName: b 143; OBJ: } 144; OBJ: DefRangeRegisterSym { 145; OBJ: Register: EAX (0x11) 146; OBJ: MayHaveNoName: 0 147; OBJ: OffsetStart: .text+0x13 148; OBJ: ISectStart: 0x0 149; OBJ: Range: 0x7 150; OBJ: } 151; OBJ: } 152; OBJ: InlineSiteSym { 153; OBJ: PtrParent: 0x0 154; OBJ: PtrEnd: 0x0 155; OBJ: Inlinee: inlineinc (0x1002) 156; OBJ: } 157; OBJ: LocalSym { 158; OBJ: Type: int (0x74) 159; OBJ: Flags [ (0x1) 160; OBJ: IsParameter (0x1) 161; OBJ: ] 162; OBJ: VarName: a 163; OBJ: } 164; OBJ: DefRangeRegisterSym { 165; OBJ: Register: EAX (0x11) 166; OBJ: LocalVariableAddrRange { 167; OBJ: OffsetStart: .text+0xC 168; OBJ: ISectStart: 0x0 169; OBJ: Range: 0x7 170; OBJ: } 171; OBJ: } 172; OBJ: LocalSym { 173; OBJ: Type: int (0x74) 174; OBJ: Flags [ (0x0) 175; OBJ: ] 176; OBJ: VarName: b 177; OBJ: } 178; OBJ: DefRangeRegisterSym { 179; OBJ: Register: EAX (0x11) 180; OBJ: LocalVariableAddrRange { 181; OBJ: OffsetStart: .text+0x13 182; OBJ: ISectStart: 0x0 183; OBJ: Range: 0x7 184; OBJ: } 185; OBJ: } 186; OBJ: InlineSiteEnd { 187; OBJ: } 188; OBJ: ProcEnd 189; OBJ: ] 190 191; ModuleID = 't.cpp' 192source_filename = "test/DebugInfo/COFF/register-variables.ll" 193target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128" 194target triple = "x86_64-pc-windows-msvc18.0.0" 195 196@x = internal global i32 0, align 4, !dbg !0 197 198; Function Attrs: nounwind uwtable 199define void @f(i32 %p) #0 !dbg !12 { 200entry: 201 tail call void @llvm.dbg.value(metadata i32 %p, metadata !16, metadata !23), !dbg !24 202 %tobool = icmp eq i32 %p, 0, !dbg !25 203 %call2 = tail call i32 @getint() #3, !dbg !26 204 br i1 %tobool, label %if.else, label %if.then, !dbg !27 205 206if.then: ; preds = %entry 207 tail call void @llvm.dbg.value(metadata i32 %call2, metadata !17, metadata !23), !dbg !28 208 tail call void @llvm.dbg.value(metadata i32 %call2, metadata !29, metadata !23), !dbg !35 209 %add.i = add nsw i32 %call2, 1, !dbg !37 210 tail call void @llvm.dbg.value(metadata i32 %add.i, metadata !34, metadata !23), !dbg !38 211 %0 = load volatile i32, i32* @x, align 4, !dbg !39, !tbaa !40 212 %inc.i = add nsw i32 %0, 1, !dbg !39 213 store volatile i32 %inc.i, i32* @x, align 4, !dbg !39, !tbaa !40 214 tail call void @llvm.dbg.value(metadata i32 %add.i, metadata !20, metadata !23), !dbg !44 215 tail call void @putint(i32 %add.i) #3, !dbg !45 216 br label %if.end, !dbg !46 217 218if.else: ; preds = %entry 219 tail call void @llvm.dbg.value(metadata i32 %call2, metadata !21, metadata !23), !dbg !47 220 tail call void @putint(i32 %call2) #3, !dbg !48 221 br label %if.end 222 223if.end: ; preds = %if.else, %if.then 224 ret void, !dbg !49 225} 226 227declare i32 @getint() #1 228 229declare void @putint(i32) #1 230 231; Function Attrs: nounwind readnone 232declare void @llvm.dbg.value(metadata, metadata, metadata) #2 233 234attributes #0 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" } 235attributes #1 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" } 236attributes #2 = { nounwind readnone } 237attributes #3 = { nounwind } 238 239!llvm.dbg.cu = !{!2} 240!llvm.module.flags = !{!8, !9, !10} 241!llvm.ident = !{!11} 242 243!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 244!1 = !DIGlobalVariable(name: "x", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true) 245!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) 246!3 = !DIFile(filename: "t.cpp", directory: "D:\5Csrc\5Cllvm\5Cbuild") 247!4 = !{} 248!5 = !{!0} 249!6 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !7) 250!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 251!8 = !{i32 2, !"CodeView", i32 1} 252!9 = !{i32 2, !"Debug Info Version", i32 3} 253!10 = !{i32 1, !"PIC Level", i32 2} 254!11 = !{!"clang version 3.9.0 (trunk 260617) (llvm/trunk 260619)"} 255!12 = distinct !DISubprogram(name: "f", scope: !3, file: !3, line: 9, type: !13, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: true, unit: !2, retainedNodes: !15) 256!13 = !DISubroutineType(types: !14) 257!14 = !{null, !7} 258!15 = !{!16, !17, !20, !21} 259!16 = !DILocalVariable(name: "p", arg: 1, scope: !12, file: !3, line: 9, type: !7) 260!17 = !DILocalVariable(name: "a", scope: !18, file: !3, line: 11, type: !7) 261!18 = distinct !DILexicalBlock(scope: !19, file: !3, line: 10, column: 10) 262!19 = distinct !DILexicalBlock(scope: !12, file: !3, line: 10, column: 7) 263!20 = !DILocalVariable(name: "b", scope: !18, file: !3, line: 12, type: !7) 264!21 = !DILocalVariable(name: "c", scope: !22, file: !3, line: 15, type: !7) 265!22 = distinct !DILexicalBlock(scope: !19, file: !3, line: 14, column: 10) 266!23 = !DIExpression() 267!24 = !DILocation(line: 9, column: 12, scope: !12) 268!25 = !DILocation(line: 10, column: 7, scope: !19) 269!26 = !DILocation(line: 15, column: 13, scope: !22) 270!27 = !DILocation(line: 10, column: 7, scope: !12) 271!28 = !DILocation(line: 11, column: 9, scope: !18) 272!29 = !DILocalVariable(name: "a", arg: 1, scope: !30, file: !3, line: 4, type: !7) 273!30 = distinct !DISubprogram(name: "inlineinc", scope: !3, file: !3, line: 4, type: !31, isLocal: true, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: true, unit: !2, retainedNodes: !33) 274!31 = !DISubroutineType(types: !32) 275!32 = !{!7, !7} 276!33 = !{!29, !34} 277!34 = !DILocalVariable(name: "b", scope: !30, file: !3, line: 5, type: !7) 278!35 = !DILocation(line: 4, column: 33, scope: !30, inlinedAt: !36) 279!36 = distinct !DILocation(line: 12, column: 13, scope: !18) 280!37 = !DILocation(line: 5, column: 13, scope: !30, inlinedAt: !36) 281!38 = !DILocation(line: 5, column: 7, scope: !30, inlinedAt: !36) 282!39 = !DILocation(line: 6, column: 3, scope: !30, inlinedAt: !36) 283!40 = !{!41, !41, i64 0} 284!41 = !{!"int", !42, i64 0} 285!42 = !{!"omnipotent char", !43, i64 0} 286!43 = !{!"Simple C/C++ TBAA"} 287!44 = !DILocation(line: 12, column: 9, scope: !18) 288!45 = !DILocation(line: 13, column: 5, scope: !18) 289!46 = !DILocation(line: 14, column: 3, scope: !18) 290!47 = !DILocation(line: 15, column: 9, scope: !22) 291!48 = !DILocation(line: 16, column: 5, scope: !22) 292!49 = !DILocation(line: 18, column: 1, scope: !12) 293 294