| # RUN: llc -start-after=livedebugvalues --filetype=obj %s -o - \ |
| # RUN: | llvm-dwarfdump -v -name=parama - | FileCheck %s |
| # |
| # Generated with -O2, llc -stop-after=livedebugvalues, with IR modified from |
| # this source: |
| # |
| # int globa, globb; |
| # void ext(); |
| # static void set(int parama, int paramb) { |
| # globa = parama; |
| # globb = paramb; |
| # } |
| # void funone(int one, int two) { |
| # two = two + one; |
| # // 'two = ...' sunk between the inlined assignments to globa and globa. |
| # set(one, two); |
| # if (two > 0) |
| # return ext(); |
| # } |
| # void funtwo(int one, int two) { |
| # two = one + two; |
| # // 'two = ...' sunk between the inlined assignments to globa and globa, |
| # // and rdi is clobbered by the sunk 'two = ...'. |
| # set(one, two); |
| # if (one < two) |
| # return ext(); |
| # } |
| # |
| # Check that the 'parama' is available for the entire inlined scope in funone, |
| # and that it is unavailable in the second DW_AT_ranges segment of the inlined |
| # scope in funtwo. In both cases the inlined scope 'set' is intrerrupted by an |
| # instruction from the calling function. |
| # |
| # Except for 'parama', all DILocalVariable metadata has been removed. |
| # |
| # Ignore first entry (abstract), we want to look at the concrete instances. |
| # CHECK: DW_TAG_formal_parameter [ |
| # CHECK: DW_TAG_formal_parameter [ |
| # CHECK-NEXT: DW_AT_location [DW_FORM_exprloc] (DW_OP_reg5 RDI) |
| # CHECK-NEXT: DW_AT_abstract_origin {{.*}} "parama" |
| # CHECK: DW_TAG_formal_parameter [ |
| # CHECK-NEXT: DW_AT_location [DW_FORM_sec_offset] |
| # CHECK-NEXT: [0x{{[0-9a-b]+}}, 0x{{[0-9a-b]+}}) |
| # CHECK-NEXT: DW_AT_abstract_origin {{.*}} "parama" |
| |
| --- | |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| @globa = dso_local local_unnamed_addr global i32 0, align 4, !dbg !0 |
| @globb = dso_local local_unnamed_addr global i32 0, align 4, !dbg !10 |
| |
| declare !dbg !6 dso_local void @ext(...) local_unnamed_addr |
| declare void @llvm.dbg.value(metadata, metadata, metadata) |
| |
| define dso_local void @funone(i32 %one, i32 %two) local_unnamed_addr !dbg !17 { |
| entry: |
| call void @llvm.dbg.value(metadata i32 %one, metadata !20, metadata !DIExpression()), !dbg !23 |
| store i32 %one, i32* @globa, align 4, !dbg !25 |
| %add = add nsw i32 %two, %one, !dbg !30 |
| store i32 %add, i32* @globb, align 4, !dbg !31 |
| %cmp = icmp sgt i32 %add, 0, !dbg !32 |
| br i1 %cmp, label %if.then, label %if.end, !dbg !34 |
| |
| if.then: ; preds = %entry |
| tail call void (...) @ext(), !dbg !35 |
| ret void, !dbg !36 |
| |
| if.end: ; preds = %entry |
| ret void, !dbg !36 |
| } |
| |
| define dso_local void @funtwo(i32 %one, i32 %two) local_unnamed_addr !dbg !37 { |
| entry: |
| call void @llvm.dbg.value(metadata i32 %one, metadata !20, metadata !DIExpression()), !dbg !41 |
| store i32 %one, i32* @globa, align 4, !dbg !43 |
| %add = add nsw i32 %two, %one, !dbg !44 |
| store i32 %add, i32* @globb, align 4, !dbg !45 |
| %cmp = icmp sgt i32 %two, 0, !dbg !46 |
| br i1 %cmp, label %if.then, label %if.end, !dbg !48 |
| |
| if.then: ; preds = %entry |
| tail call void (...) @ext(), !dbg !49 |
| ret void, !dbg !50 |
| |
| if.end: ; preds = %entry |
| ret void, !dbg !50 |
| } |
| |
| !llvm.dbg.cu = !{!2} |
| !llvm.module.flags = !{!13, !14, !15} |
| !llvm.ident = !{!16} |
| |
| !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) |
| !1 = distinct !DIGlobalVariable(name: "globa", scope: !2, file: !3, line: 16, type: !12, isLocal: false, isDefinition: true) |
| !2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 11.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !5, globals: !9, splitDebugInlining: false, nameTableKind: None) |
| !3 = !DIFile(filename: "test.c", directory: "/") |
| !4 = !{} |
| !5 = !{!6} |
| !6 = !DISubprogram(name: "ext", scope: !3, file: !3, line: 17, type: !7, spFlags: DISPFlagOptimized, retainedNodes: !4) |
| !7 = !DISubroutineType(types: !8) |
| !8 = !{null, null} |
| !9 = !{!0, !10} |
| !10 = !DIGlobalVariableExpression(var: !11, expr: !DIExpression()) |
| !11 = distinct !DIGlobalVariable(name: "globb", scope: !2, file: !3, line: 16, type: !12, isLocal: false, isDefinition: true) |
| !12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !13 = !{i32 7, !"Dwarf Version", i32 4} |
| !14 = !{i32 2, !"Debug Info Version", i32 3} |
| !15 = !{i32 1, !"wchar_size", i32 4} |
| !16 = !{!"clang version 11.0.0"} |
| !17 = distinct !DISubprogram(name: "funone", scope: !3, file: !3, line: 22, type: !18, scopeLine: 22, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4) |
| !18 = !DISubroutineType(types: !19) |
| !19 = !{null, !12, !12} |
| !20 = !DILocalVariable(name: "parama", arg: 1, scope: !21, file: !3, line: 18, type: !12) |
| !21 = distinct !DISubprogram(name: "set", scope: !3, file: !3, line: 18, type: !18, scopeLine: 18, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagLocalToUnit | DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !22) |
| !22 = !{!20} |
| !23 = !DILocation(line: 0, scope: !21, inlinedAt: !24) |
| !24 = distinct !DILocation(line: 24, column: 3, scope: !17) |
| !25 = !DILocation(line: 19, column: 9, scope: !21, inlinedAt: !24) |
| !30 = !DILocation(line: 23, column: 13, scope: !17) |
| !31 = !DILocation(line: 20, column: 9, scope: !21, inlinedAt: !24) |
| !32 = !DILocation(line: 25, column: 11, scope: !33) |
| !33 = distinct !DILexicalBlock(scope: !17, file: !3, line: 25, column: 7) |
| !34 = !DILocation(line: 25, column: 7, scope: !17) |
| !35 = !DILocation(line: 26, column: 12, scope: !33) |
| !36 = !DILocation(line: 27, column: 1, scope: !17) |
| !37 = distinct !DISubprogram(name: "funtwo", scope: !3, file: !3, line: 28, type: !18, scopeLine: 28, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !38) |
| !38 = !{} |
| !41 = !DILocation(line: 0, scope: !21, inlinedAt: !42) |
| !42 = distinct !DILocation(line: 30, column: 3, scope: !37) |
| !43 = !DILocation(line: 19, column: 9, scope: !21, inlinedAt: !42) |
| !44 = !DILocation(line: 29, column: 13, scope: !37) |
| !45 = !DILocation(line: 20, column: 9, scope: !21, inlinedAt: !42) |
| !46 = !DILocation(line: 31, column: 11, scope: !47) |
| !47 = distinct !DILexicalBlock(scope: !37, file: !3, line: 31, column: 7) |
| !48 = !DILocation(line: 31, column: 7, scope: !37) |
| !49 = !DILocation(line: 32, column: 12, scope: !47) |
| !50 = !DILocation(line: 33, column: 1, scope: !37) |
| |
| ... |
| --- |
| name: funone |
| body: | |
| bb.0.entry: |
| successors: %bb.2(0x50000000), %bb.1(0x30000000) |
| liveins: $edi, $esi |
| |
| DBG_VALUE $edi, $noreg, !20, !DIExpression(), debug-location !23 |
| MOV32mr $rip, 1, $noreg, @globa, $noreg, renamable $edi, debug-location !25 :: (store (s32) into @globa) |
| renamable $esi = ADD32rr killed renamable $esi, killed renamable $edi, implicit-def $eflags, debug-location !32 |
| MOV32mr $rip, 1, $noreg, @globb, $noreg, killed renamable $esi, debug-location !31 :: (store (s32) into @globb) |
| JCC_1 %bb.1, 14, implicit $eflags, debug-location !34 |
| |
| bb.2.if.then: |
| dead $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, implicit-def $al, debug-location !35 |
| TAILJMPd64 @ext, csr_64, implicit $rsp, implicit $ssp, implicit $rsp, implicit $ssp, implicit killed $al, debug-location !35 |
| |
| bb.1.if.end: |
| RET64 debug-location !36 |
| |
| ... |
| --- |
| name: funtwo |
| body: | |
| bb.0.entry: |
| successors: %bb.2(0x50000000), %bb.1(0x30000000) |
| liveins: $edi, $esi |
| |
| DBG_VALUE $edi, $noreg, !20, !DIExpression(), debug-location !41 |
| MOV32mr $rip, 1, $noreg, @globa, $noreg, renamable $edi, debug-location !43 :: (store (s32) into @globa) |
| renamable $edi = nsw ADD32rr killed renamable $edi, renamable $esi, implicit-def dead $eflags, debug-location !44 |
| MOV32mr $rip, 1, $noreg, @globb, $noreg, killed renamable $edi, debug-location !45 :: (store (s32) into @globb) |
| TEST32rr killed renamable $esi, renamable $esi, implicit-def $eflags, debug-location !46 |
| JCC_1 %bb.1, 14, implicit $eflags, debug-location !48 |
| |
| bb.2.if.then: |
| dead $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags, implicit-def $al, debug-location !49 |
| TAILJMPd64 @ext, csr_64, implicit $rsp, implicit $ssp, implicit $rsp, implicit $ssp, implicit killed $al, debug-location !49 |
| |
| bb.1.if.end: |
| RET64 debug-location !50 |
| |
| ... |
