search for: zhangzw

Hi Duncan, >>are you trying to get the name "@_ZTIi" or "@__cxa_throw"? yes! i want get the name @_ZTi or @__cxa_throw, the latter @__cxa_throw i can get it throw value->getName(), but the @_ZTi it did n't has name! zhangzw thanks 2009/3/26 Duncan Sands <baldrick at free.fr>: > Hi zhangzw, > >> invoke void @__cxa_throw(i8* %7, i8* bitcast >> (%struct.__fundamental_type_info_pseudo* @_ZTIi to i8*), void (i8*)* >> null) >> noreturn to label %invcont unwind label %lpad >&g...

...)* null) noreturn to label %invcont unwind label %lpad say I want to get the Invoke's Operand's name, I use getOperand(i)->getName(), it can work for that the Operand hasname, but some Operand hasn't name, So, My problem is how can i get all the Operand 's name ? zhangzw

...on sjlj-eh it's need store the landing pad index to stack before call __cxa_throw, but it seems no ! in llvm-backend because it only suport dwarf-eh! so i have to build another node to store landingpad index to stack before llvm invoke instruction. am i write for the direction? hehe. zhangzw 2009/3/26 Duncan Sands <baldrick at free.fr>: > Hi zhangzw, > >>> invoke void @__cxa_throw(i8* %7, i8* bitcast >>> (%struct.__fundamental_type_info_pseudo* @_ZTIi to i8*), void (i8*)* >>> null) >>> noreturn to label %invcont unwind label...

Hi zhangzw, > invoke void @__cxa_throw(i8* %7, i8* bitcast > (%struct.__fundamental_type_info_pseudo* @_ZTIi to i8*), void (i8*)* > null) > noreturn to label %invcont unwind label %lpad > > say I want to get the Invoke's Operand's name are you trying to get the name &quot...

Hi zhangzw, >> invoke void @__cxa_throw(i8* %7, i8* bitcast >> (%struct.__fundamental_type_info_pseudo* @_ZTIi to i8*), void (i8*)* >> null) >> noreturn to label %invcont unwind label %lpad > > >>are you trying to get the name "@_ZTIi" or "@__cxa_thr...

Hi In llvm src the file llvm/lib/Transforms/IPO/LowerSetJmp.cpp, it seems for sjlj-eh ? but this pass has no effect about c++ sjlj-eh. this pass is for future extend? zhangzw

Hi zhangzw, > >> Why do you want the names anyway? > > because i 'am working on llvm to support sjlj-eh for my target. > for my side, I lookup the llvm invoke instruction to build the sjlj-eh > on sjlj-eh it's need store the landing pad index to stack before > call __c...

...this got to do with determining the >>names "@__cxa_throw" and "@_ZTi"? Record the Information into the MachineModule Info, so in Dwarfwriter or SjLjWriter(my sjlj-eh name) can build the except table correctly! 2009/3/26 Duncan Sands <baldrick at free.fr>: > Hi zhangzw, > >> >> Why do you want the names anyway? >> >> because i 'am working on llvm to support sjlj-eh for my target. >> for my side, I lookup the llvm invoke instruction to build the sjlj-eh >> on sjlj-eh it's need store the landing pad index to sta...

...but llvm-2.5 didn't , if implement it without using MachineModuleInfo, so I should create another ADT, but that is mostly same to MachineModuleInfo, that's repeat work! or less cost for me ! >> It's being removed. if so, what's the replacement of the MachineModuleInfo ? zhangzw

Hi zhangzw, ... > 59 %3 = invoke > %"struct.std::basic_ostream<char,std::char_traits<char> >"* > @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(%"struct.std::basic_ostream<char,std::char_traits<char> > >"* @_ZSt4cout, i8* geteleme...

...ch(all) has extra null arg, eh_select = tail call i32 (i8*, i8*, ...)* @llvm.eh.selector.i32(i8* %eh_ptr, i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*), i8* null) ; <i32> [#uses=0] I have doubt that : the llvm-IR like above are all translated from catch(all) statement . zhangzw

...e only the catch(...) statement can be translate to the LLVM-IR : eh_select = tail call i32 (i8*, i8*, ...)* @llvm.eh.selector.i32(i8* %eh_ptr, i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*), i8* null) are there any other case can be translate to the same above LLVM-IR ? best regards zhangzw

...d 72 73 Unwind: ; preds = %lpad 74 tail call void @_Unwind_Resume(i8* %eh_ptr) 75 unreachable 76 } here at line 48 can throw an exception? my another problem : are there any different of above two llmv-ir on handle c++ exception ? best regards zhangzw 2009-4-28

in llvm-backend did't support sjlj-exceptions handlying,but support dwarf-excceptions handlying, my question is: if i want change llvm-backend to support, how should i Do ? anyone can give some clue? bestregards zhangzw

...now i have problem about the emit except table for sjlj. because llvm used dwarf-eh info no use for sjlj-eh! may be i have to find another way do my work. all are machine dependent ! it's very difficult port to other target. if someone can add a general way do this that would be help ! regards zhangzw

Hi zhangzw, > In llvm src the file llvm/lib/Transforms/IPO/LowerSetJmp.cpp, it > seems for sjlj-eh ? it's not for sjlj-eh. The problem with setjmp/longjmp is that they can jump from one part of a function to any other part, which means that the control-flow graph is pointless; this makes eve...

...llvm leave the libstc++v3 to the front-end(clang or llvm-gcc?). another problem is if I compile libstdc++v3 as byte-code (llvm-IR), just say libstdc++v3.bc , and link libstdc++v3.bc with programs, are this action can solve the problem of llvm didn't support sjlj-exception? best regards zhangzw

...generate the sjlj-eh code, but I'm totally despair ! my major problem is that llvm-ir , I mean exception instrinstics are enough for codegen the sjlj-eh code? May I need to modify the llvm-gcc ? or someone can give some advice about llvm-backend 's support sjlj-eh ? best regards zhangzw

Hi, >There's definitely more to it than the current intrinsics, which are >there to support dwarf. that's to say we need modify the llvm-gcc so the front end can generate the sjlj-style IR, >SJLJ exceptions rely on runtime library >functions to register and unregister call frames which require >unwinding, so we need to modify LLVM to handle generating those call my

Hi, >There's definitely more to it than the current intrinsics, which are >there to support dwarf. from the exist llvm-ir it seems there are some common info for sjlj-eh and dwarf-eh! are there possible use the exist llvm-ir to generate exception table for sjlj-eh ? zhangzw