search for: diglobalvariableexpression

Hi, I don't find DIGlobalVariableExpression in langref. Should it be documented? Could anybody explain what it is? https://llvm.org/docs/LangRef.html In one ll file converted from bitcode, I mostly see something like this. !8273 = !DIGlobalVariableExpression(var: !8274, expr: !DIExpression()) Only one looks like this. !8945 = !DIGlobalV...

...d=39900> and PR39899 <https://bugs.llvm.org/show_bug.cgi?id=39899>). But a broader question I was wondering if it was anyone's radar (it's not something I'll be pushing on myself in the near future, but just wanted to see if the idea was already out there, etc): Why are there DIGlobalVariableExpressions that are both attached as !dbg metadata on llvm::GlobalVariables, and in the globals() list of a DICompileUnit? I would've thought, ideally, a DIGlobalVariableExpression would be mutually exclusively in one place or the other - the only ones in the globals() list of a DICompileUnit would be th...

Thanks! Unfortunately this doesn't seem to cause it, because when I fix it to match the other files (and pretty much how clang emits it:) !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) !1 = !DIGlobalVariable(name: "IDispatch_UID", linkageName: "f_t2b_RemObjects_d_Elements_d_System_d_____Global.IDispatchUID", scope: !2, file: !3, type: !622, isLocal: false, isDefinition: true) !2 = distinct !DICompileUnit(language: DW_LANG_C99,...

...iables (PR39900 and PR39899). > > > > But a broader question I was wondering if it was anyone's radar (it's > not something I'll be pushing on myself in the near future, but just wanted > to see if the idea was already out there, etc): > > > > Why are there DIGlobalVariableExpressions that are both attached as !dbg > metadata on llvm::GlobalVariables, and in the globals() list of a > DICompileUnit? I would've thought, ideally, a DIGlobalVariableExpression > would be mutually exclusively in one place or the other - the only ones in > the globals() list of a DICom...

...t hierarchy, I guess we could address it with a "Debug Version" rev, but since it's an intrinsic in the IR it's either rev the IR itself (expensive) or use a new name. > However, writing this made me realize that DIExpressions also appear outside of debug intrinsics, namely in DIGlobalVariableExpression(). There we run into this ambiguity already, since this form > > @i = global i32, !dbg !0 > !0 = !DIGlobalVariableExpression(var: !DIGlobalVariable(...), expr: !DIExpression()) > > implicitly pushes the first arg, but this form > > !0 = distinct !DICompileUnit(..., globals:...

...cts.com> Отправлено: 21 марта 2018 г. 18:22 Кому: Evgeny Leviant; llvm-dev at lists.llvm.org Тема: Re: [llvm-dev] lld/lto/win32 crash on DIE code Thanks! Unfortunately this doesn't seem to cause it, because when I fix it to match the other files (and pretty much how clang emits it:) !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) !1 = !DIGlobalVariable(name: "IDispatch_UID", linkageName: "f_t2b_RemObjects_d_Elements_d_System_d_____Global.IDispatchUID", scope: !2, file: !3, type: !622, isLocal: false, isDefinition: true) !2 = distinct !DICompileUnit(language: DW_LANG_C99, f...

On Wed, Jul 8, 2020 at 9:29 AM Adrian Prantl via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > > > > On Jul 8, 2020, at 5:21 AM, Tozer, Stephen <stephen.tozer at sony.com> wrote: > > > >> To summarize my understanding: Neither of these operators is strictly necessary, since the same effect can be achieved by implicitly pushing all operands of a

...DebugInfo or Metadata. But my little research was not successful. my code excerpt: DebugInfoFinder DIFinder; DIFinder.processModule(*M); llvm::outs() << "Count of global Variables in Module : " << DIFinder.global_variable_count() << "\n"; for(DIGlobalVariableExpression *DIGVExpr : DIFinder.global_variables()) { if(DIGlobalVariable *DIGV = DIGVExpr->getVariable()) { llvm::outs() << "DIGV DisplayName : " << DIGV->getDisplayName() << "\n"; } } for(DIType *DIT : DIFinder.typ...

...gned) !42 = !{!43, !44, !45, !46} !43 = !DIEnumerator(name: "Internal", value: 0) !44 = !DIEnumerator(name: "Strong", value: 1) !45 = !DIEnumerator(name: "Weak", value: 2) !46 = !DIEnumerator(name: "LinkOnce", value: 3) !47 = !{!48, !51, !54, !56, !58} !48 = !DIGlobalVariableExpression(var: !49) !49 = distinct !DIGlobalVariable(name: "link_libc", linkageName: "link_libc", scope: !5, file: !5, line: 200, type: !50, isLocal: true, isDefinition: true) !50 = !DIBasicType(name: "bool", size: 8, encoding: DW_ATE_boolean) !51 = !DIGlobalVariableExpression(v...

...common global %alphabytes_ zeroinitializer, align 64, !dbg !27, !dbg !30, !dbg !33 !14 = distinct !DISubprogram(…) !20 = distinct !DICommonBlock(scope: !14, declaration: !25, name: "alpha") !25 = distinct !DIGlobalVariable(scope: !20, name: "common alpha", type: !24) !27 = !DIGlobalVariableExpression(var: !25, expr: !DIExpression()) !29 = distinct !DIGlobalVariable(scope: !20, name: "i", file: !3, type: !28) !30 = !DIGlobalVariableExpression(var: !29, expr: !DIExpression()) !31 = distinct !DIGlobalVariable(scope: !20, name: "j", file: !3, type: !28) !32 = !DIExpression(D...

...ata information? > To get to the source variables associated with a global you can use code like this (copied from the IR Verifier): > > SmallVector<MDNode *, 1> MDs; > GV.getMetadata(LLVMContext::MD_dbg, MDs); > for (auto *MD : MDs) { > if (auto *GVE = dyn_cast<DIGlobalVariableExpression>(MD)) > // do stuff. > > -- adrian > >> I would appreciate it for any help. >> In advance, thank you very much. >> >> -- >> ---------------------- >> the best regards! >> 0x0859549A >> >> >> __________________________...

Ok, I've done a bit more investigation. I found the module which declares broken DIE (e54b3dc8c0536e29a65f8548b5ae7958-Global.o) and here is what I found there: !2 = !DIFile(filename: "island.windows.elements", ... ... !4 = distinct !DICompileUnit(language: DW_LANG_C99, file: !5, ... !5 = !DIFile(filename: "island.windows.elements-e54b3dc8c0536e29a65f8548b5ae7958-global",

Op 21-3-2018 om 10:28 schreef Evgeny Leviant: > It looks the problem lies in how your compiler generates debug info. LLVM doesn't > expect DIDerivedType scope to be an instance of DICompileUnit. Here is a quick fix: > > DIE *DwarfUnit::getOrCreateContextDIE(const DIScope *Context) { > - if (!Context || isa<DIFile>(Context)) > + if (!Context ||

..._ = common global %alphabytes_ zeroinitializer, align 64, !dbg !27, !dbg !30, !dbg !33 !14 = distinct !DISubprogram(…) !20 = distinct !DICommonBlock(scope: !14, declaration: !25, name: "alpha") !25 = distinct !DIGlobalVariable(scope: !20, name: "common alpha", type: !24) !27 = !DIGlobalVariableExpression(var: !25, expr: !DIExpression()) !29 = distinct !DIGlobalVariable(scope: !20, name: "i", file: !3, type: !28) !30 = !DIGlobalVariableExpression(var: !29, expr: !DIExpression()) !31 = distinct !DIGlobalVariable(scope: !20, name: "j", file: !3, type: !28) !32 = !DIExpression(DW_OP...

Hi, I see things like this. What does it mean? Is it documented somewhere? Thanks. ; preds = %for.body https://llvm.org/docs/LangRef.html ; <label>:91: ; preds = %88 %92 = load i8**, i8*** @glob_complete_word.matches, align 8, !dbg !99798 %93 = load i32, i32* @glob_complete_word.ind, align 4, !dbg !99799 %94 = sext i32 %93 to i64, !dbg !99798

...8, encoding: DW_ATE_unsigned) !7 = !{!8, !9, !10, !11} !8 = !DIEnumerator(name: "Internal", value: 0) !9 = !DIEnumerator(name: "Strong", value: 1) !10 = !DIEnumerator(name: "Weak", value: 2) !11 = !DIEnumerator(name: "LinkOnce", value: 3) !12 = !{!13} !13 = !DIGlobalVariableExpression(var: !14) !14 = distinct !DIGlobalVariable(name: "__zig_panic_implementation_provided", linkageName: "__zig_panic_implementation_provided", scope: !5, file: !5, line: 201, type: !15, isLocal: true, isDefinition: true) !15 = !DIBasicType(name: "bool", size: 8, encoding:...

...ncoding: DW_ATE_unsigned_char) !7 = !{!8, !9, !10, !11} !8 = !DIEnumerator(name: "Internal", value: 0) !9 = !DIEnumerator(name: "Strong", value: 1) !10 = !DIEnumerator(name: "Weak", value: 2) !11 = !DIEnumerator(name: "LinkOnce", value: 3) !12 = !{!13} !13 = !DIGlobalVariableExpression(var: !14) !14 = distinct !DIGlobalVariable(name: "__zig_panic_implementation_provided", linkageName: "__zig_panic_implementation_provided", scope: !5, file: !5, line: 189, type: !15, isLocal: true, isDefinition: true) !15 = !DIBasicType(name: "bool", size: 8, encoding:...

...} >> !8 = !DIEnumerator(name: "Internal", value: 0) >> !9 = !DIEnumerator(name: "Strong", value: 1) >> !10 = !DIEnumerator(name: "Weak", value: 2) >> !11 = !DIEnumerator(name: "LinkOnce", value: 3) >> !12 = !{!13} >> !13 = !DIGlobalVariableExpression(var: !14) >> !14 = distinct !DIGlobalVariable(name: "__zig_panic_implementation_provided", >> linkageName: "__zig_panic_implementation_provided", scope: !5, file: !5, >> line: 201, type: !15, isLocal: true, isDefinition: true) >> !15 = !DIBasicType(name:...

> -----Original Message----- > From: llvm-dev [mailto:llvm-dev-bounces at lists.llvm.org] On Behalf Of Tim > Northover via llvm-dev > Sent: Wednesday, July 25, 2018 3:07 AM > To: Nat! > Cc: LLVM Developers Mailing List > Subject: Re: [llvm-dev] A question to the DWARF experts on symbol > indirection > > Hi Nat!, > > On Wed, 25 Jul 2018 at 01:21, Nat! via

...t;Internal", value: 0) >>>> !9 = !DIEnumerator(name: "Strong", value: 1) >>>> !10 = !DIEnumerator(name: "Weak", value: 2) >>>> !11 = !DIEnumerator(name: "LinkOnce", value: 3) >>>> !12 = !{!13} >>>> !13 = !DIGlobalVariableExpression(var: !14) >>>> !14 = distinct !DIGlobalVariable(name: >>>> "__zig_panic_implementation_provided", linkageName: >>>> "__zig_panic_implementation_provided", scope: !5, file: !5, line: 201, >>>> type: !15, isLocal: true, isDefinition:...