similar to: [LLVMdev] Functions with unnamed parameters in LLVM IR

On 13 August 2014 15:48, Tim Northover <t.p.northover at gmail.com> wrote: >> The above LLVM IR was confusing to me because I usually see that >> unnamed registers start counting from 1 (i.e. %1 = add ...). > > There's a (usually hidden) %0 representing the entry basic block > there. The general rule is "start from 0 and keep counting; skip named >

Hi. I found that, in all the LLVM IR I get from the source C file. the unnamed values all created by the "load" instruction. eg: ; Function Attrs: nounwind uwtable define i32 @add(i32 %x, i32 %y) #0 { entry: %x.addr = alloca i32, align 4 %y.addr = alloca i32, align 4 %c = alloca i32, align 4 store i32 %x, i32* %x.addr, align 4 store i32 %y, i32* %y.addr, align 4 * %0 =

> I did mean the LangRef, but probably not there, and not to that degree. For documentation I think being explicit is much better than being implicit. > It's a fairly minor point, perhaps warranting a sentence where unnamed > values are generally discussed and the basic-block case is mentioned > (under the "Identifiers" section). I took a look at the

hello guys: I am in trouble with get the identifies of the unnamed temporaries from the instruction of LLVM IR. for example: instruction: %4 = mul nsw i32 %1, %width unnamed temporaries: %4, %1 how to get them? I have tried several iterators(op_iterator,value_op_iterator) and getOperand(int) function,but none of them works. does anyone know how to get it? thanks very much -- View this message

Hi, On 09/04/13 10:16, Dong Chen wrote: > hello guys: > I am in trouble with get the identifies of the unnamed temporaries from the > instruction of LLVM IR. this is a FAQ. Most names in the IR are just there to make it easier to read and can safely be removed. You can't rely on instructions having names, and as you saw often they do not have a name. Even if they start off with a

hi, Duncan Sands: thanks for your reply old friend. the reason why I want to get the unnamed value is that I am doing some analysis based on the IR code. And IR is in the form of SSA(static single assignment). so i need to get the operands of each instructions including a lot of instructions like this (%4 = mul nsw i32 %1, %width). the unnamed values are the connection of instructions, if i

Hi, On 09/04/13 11:19, Dong Chen wrote: > hi, Duncan Sands: > thanks for your reply old friend. > the reason why I want to get the unnamed value is that I am doing some > analysis based on the IR code. And IR is in the form of SSA(static single > assignment). so i need to get the operands of each instructions including a > lot of instructions like this (%4 = mul nsw i32 %1,

Hello Tim, Thank you for getting back to me. The language grammar as defined by the LLVM Language Reference Manual [1] does not include the details of the LLVM IR parser reference implementation. The following extract from "lib/AsmParser/LLParser.cpp" illustrates that unnamed globals are allowed [2]. > /// ParseUnnamedGlobal: > /// OptionalVisibility (ALIAS | IFUNC) ...

On 15 August 2014 11:01, Tim Northover <t.p.northover at gmail.com> wrote: > On 15 August 2014 10:53, Dan Liew <dan at su-root.co.uk> wrote: >>> I did mean the LangRef, but probably not there, and not to that degree. >> >> For documentation I think being explicit is much better than being implicit. > > Sure, but the entire section on functions is 61 lines.

On Feb 27, 2011, at 9:48 AM, Rafael Ávila de Espíndola wrote: >> Comments welcome! > > Having fewer types makes the job of the passes easier. Right now we > maintain a small number of types as we go, which is expensive. In the > proposed change, would it still be legal to write a type merging pass? > For example, lets say we have > > %Foo = type { i32 } >

Hello, I am trying to print out output name of "unnamed temporary". For instance, for %3 = add i32 %21, i32 %index.01, I would like to print out %3. Can anybody please let me know how I can get it? Thank you -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20110921/56a6991a/attachment.html>

Hi Chris I have questions about new IR. > Named structs. > Unnamed structs (named structs with no names) > Anonymous structs (things like complex, which cannot be cyclic) > >Given this, the rules above would be that "only non-anonymous structs can have >cycles" for example. Arrays, pointers and other non-namable types can be >considered to be anonymous as well.

hi Sean Silva: i really appriciate for your reply. but you konw that "dump()" instruction can print "%4" in the screen and each time print the same name "%4" not "%5" or "%6" for the same unnamed value. so there must be a way to determinate it. if "dump()" instruction can print it on the screen, can i find some way to store it in a char *

On 11-02-26 4:25 PM, Chris Lattner wrote: > Several people have been proding me to write up my thoughts on how to fix the IR type system for LLVM 3.0. Here are some (fairly stream of conscious) thoughts on the matter: > http://nondot.org/sabre/LLVMNotes/TypeSystemRewrite.txt Thanks! > Comments welcome! Having fewer types makes the job of the passes easier. Right now we maintain a

hi, Duncan: thanks for your patience. i have tried it. using instuction: errs()<<i->getOperand(0); but it prints the address: someting like 0x1139700; i checked the defination of getOperand() is Value* getOperand( unsigned int i); so is there someting i missed? -- View this message in context:

hi, Duncan, thank you for your reply; instruction "i->getOperand(0)->dump()" may print the %4 in the screen, but how can i store it in a variable like char * oprand="%4" ? -- View this message in context: http://llvm.1065342.n5.nabble.com/get-the-identifies-of-the-unnamed-temporaries-from-the-instruction-of-LLVM-IR-tp56572p56588.html Sent from the LLVM - Dev mailing

Hi, I was trying to use CloneBasicBlock() (in Cloning.h) to clone basic blocks in one of my transform passes. For example, when I have a basic block like: bb1: ; preds = %bb load i32* %i, align 4 ; <i32>:11 [#uses=2] load i32* %n_addr, align 4 ; <i32>:12 [#uses=2] icmp slt i32 %11, %12 ; <i1>:13 [#uses=2] cloning it gives something like: bb1_clone: ; preds = %entry

Hello Mehdi, Thank you for bringing this to our awareness. I've been looking into the 3.8 release of LLVM. Would you happen to know if r269096 was part of this realese? lli running on my system is capable of handling unnamed global variables, so I'd imagine so. u at x1 ~> lli -version LLVM (http://llvm.org/): LLVM version 3.8.0 Optimized build. Built May 7 2016

Hi, On 09/04/13 11:56, Dong Chen wrote: > hi, Duncan: > thanks for your patience. > i have tried it. > using instuction: errs()<<i->getOperand(0); errs()<<*i->getOperand(0); You can also use: i->getOperand(0)->dump(); Ciao, Duncan. > but it prints the address: someting like 0x1139700; > i checked the defination of getOperand() is Value* getOperand(

Hi Dan, On 20 August 2014 15:12, Dan Liew <dan at su-root.co.uk> wrote: > Sorry for the delay on this. Is the attached patch any better? Yep, that looks fine to me. Would you like me to commit it or do you have access? Cheers. Tim.