search for: getlinkedtoglobal

Hey all, For LinkModules, /*dest*/ is a fully materialized module, /*src*/ is a lazily loaded module. From what I understood, getLinkedToGlobal() is finding the function in /*src*/ that matches some function declaration in /*dest*/, and given that /*src*/ is lazily loaded it could be un-materialized. The functions I need brought in from /*src*//**/ into /*dest*/ are always declarations in /*dest*/. The problem is that (for some reason)...

...d @foo(%1*) unnamed_addr #7 comdat($comdat1) align 2 personality i32 (...)* @__gxx_personality_v0 {} is materialized to ; Function Attrs: nounwind uwtable declare void @foo(%"type1"*) unnamed_addr #2 align 2 Inside IRLinker::linkGlobalValueProto, the materialized value is returned from getLinkedToGlobal(SGV) and assigned to DGV. However, as ForAlias is true and ShouldLink is false, DGV becomes nullptr later, and NewGV is created from copyGlobalValueProto(SGV, ShouldLink) call. Therefore, returned value from linkGlobalValueProto is different from the value obtained by ValueMap.lookup(SGV) in IRLink...

> > > I understood from his description that he reversed the destination and > source so that destination is the user code. > I assumed it was not lazy loaded, but that would explain the question then > :) > > Neil: can you clarify? If Teresa is right, why aren't you materializing > the destination module entirely? > > I don't think it has ever been tried

....)* @__gxx_personality_v0 {} > > > > is materialized to > > > > ; Function Attrs: nounwind uwtable > > declare void @foo(%"type1"*) unnamed_addr #2 align 2 > > > > Inside IRLinker::linkGlobalValueProto, the materialized value is returned > from getLinkedToGlobal(SGV) and assigned to DGV. However, as ForAlias is > true and ShouldLink is false, DGV becomes nullptr later, and NewGV is > created from copyGlobalValueProto(SGV, ShouldLink) call. Therefore, > returned value from linkGlobalValueProto is different from the value > obtained by ValueMap.l...

...%1*) unnamed_addr #7 comdat($comdat1) align 2 personality i32 (...)* @__gxx_personality_v0 {} is materialized to ; Function Attrs: nounwind uwtable declare void @foo(%"type1"*) unnamed_addr #2 align 2 Inside IRLinker::linkGlobalValueProto, the materialized value is returned from getLinkedToGlobal(SGV) and assigned to DGV. However, as ForAlias is true and ShouldLink is false, DGV becomes nullptr later, and NewGV is created from copyGlobalValueProto(SGV, ShouldLink) call. Therefore, returned value from linkGlobalValueProto is different from the value obtained by ValueMap.lookup(SGV) in IRLink...

....)* @__gxx_personality_v0 {} > > > > is materialized to > > > > ; Function Attrs: nounwind uwtable > > declare void @foo(%"type1"*) unnamed_addr #2 align 2 > > > > Inside IRLinker::linkGlobalValueProto, the materialized value is returned > from getLinkedToGlobal(SGV) and assigned to DGV. However, as ForAlias is > true and ShouldLink is false, DGV becomes nullptr later, and NewGV is > created from copyGlobalValueProto(SGV, ShouldLink) call. Therefore, > returned value from linkGlobalValueProto is different from the value > obtained by ValueMap.l...

...%1*) unnamed_addr #7 comdat($comdat1) align 2 personality i32 (...)* @__gxx_personality_v0 {} is materialized to ; Function Attrs: nounwind uwtable declare void @foo(%"type1"*) unnamed_addr #2 align 2 Inside IRLinker::linkGlobalValueProto, the materialized value is returned from getLinkedToGlobal(SGV) and assigned to DGV. However, as ForAlias is true and ShouldLink is false, DGV becomes nullptr later, and NewGV is created from copyGlobalValueProto(SGV, ShouldLink) call. Therefore, returned value from linkGlobalValueProto is different from the value obtained by ValueMap.lookup(SGV) in IRLink...

....)* @__gxx_personality_v0 {} > > > > is materialized to > > > > ; Function Attrs: nounwind uwtable > > declare void @foo(%"type1"*) unnamed_addr #2 align 2 > > > > Inside IRLinker::linkGlobalValueProto, the materialized value is returned > from getLinkedToGlobal(SGV) and assigned to DGV. However, as ForAlias is > true and ShouldLink is false, DGV becomes nullptr later, and NewGV is > created from copyGlobalValueProto(SGV, ShouldLink) call. Therefore, > returned value from linkGlobalValueProto is different from the value > obtained by ValueMap.l...

...;> >>> >>> ; Function Attrs: nounwind uwtable >>> >>> declare void @foo(%"type1"*) unnamed_addr #2 align 2 >>> >>> >>> >>> Inside IRLinker::linkGlobalValueProto, the materialized value is >>> returned from getLinkedToGlobal(SGV) and assigned to DGV. However, as >>> ForAlias is true and ShouldLink is false, DGV becomes nullptr later, and >>> NewGV is created from copyGlobalValueProto(SGV, ShouldLink) call. >>> Therefore, returned value from linkGlobalValueProto is different from the >>&...

....)* @__gxx_personality_v0 {} > > > > is materialized to > > > > ; Function Attrs: nounwind uwtable > > declare void @foo(%"type1"*) unnamed_addr #2 align 2 > > > > Inside IRLinker::linkGlobalValueProto, the materialized value is returned > from getLinkedToGlobal(SGV) and assigned to DGV. However, as ForAlias is > true and ShouldLink is false, DGV becomes nullptr later, and NewGV is > created from copyGlobalValueProto(SGV, ShouldLink) call. Therefore, > returned value from linkGlobalValueProto is different from the value > obtained by ValueMap.l...

On Thu, Jul 28, 2016 at 5:18 PM, Taewook Oh <twoh at fb.com> wrote: > Hello Teresa, > > > > Thank you for your reply. I’m trying to create a small repro but find it > hard to nail down because originally it is a big build. This happens with > gold linker. > I think I need to see a smaller test case, looking through the code I'm not sure how we ended up in this

Hello Teresa, Thank you for your reply. I’m trying to create a small repro but find it hard to nail down because originally it is a big build. This happens with gold linker. Thanks, Taewook From: Teresa Johnson <tejohnson at google.com> Date: Thursday, July 28, 2016 at 5:08 PM To: Taewook Oh <twoh at fb.com> Cc: via llvm-dev <llvm-dev at lists.llvm.org> Subject: Re: [llvm-dev]