similar to: [LLVMdev] CloneBasicBlock and Unnamed Temporaries

It seems the CloneBasicBlock function defined in Transforms/Utils/Cloning.h doesn't change the parent BasicBlock of the contained instructions when it has cloned them -- Is this a bug or a feature? m.

On Mon, 17 Jan 2005, Morten Ofstad wrote: > It seems the CloneBasicBlock function defined in Transforms/Utils/Cloning.h > doesn't change the parent BasicBlock of the contained instructions when it > has cloned them -- Is this a bug or a feature? I'm not sure I understand. This code: Instruction *NewInst = II->clone(); ..

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

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, 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, Found CloneBasicBlock utility only does the cloning without any remapping. Consider below example: Input block: sw.epilog: ; preds = %sw.bb20, %sw.bb15, %sw.bb10, %sw.bb6, %sw.bb2, %sw.bb, %while.body, %if.end29 %no_final.1 = phi i32 [ %no_final.055, %while.body ], [ 1, %if.end29 ], [ %no_final.055, %sw.bb20 ], [ %no_final.055, %sw.bb15 ], [

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 11:56, 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, 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 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 *

Hi, In the IR below, %tmp.7 and %tmp.8 are not used in loop, so we can sink them in exit blocks. However, LICM do not handle this case because of the check in isNotUsedInLoop() which returns false when a PHI node use is hooked from a block inside the loop. I'm not sure if we really need to have this check even when the PHI is outside the loop? define i32 @test7(i32 %N, i32 %N2, i1 %C) {

I want to do the following: suppose the program structure: bb / \ bb1 bb2 \ / bb3

On Wed, Jun 2, 2010 at 12:24 PM, ambika <ambika at cse.iitb.ac.in> wrote: > Hi, > > I want to duplicate a set of basic blocks and finally modify the > structure of CFG. > But if I just duplicate a block then name of all the  temporaries will > be same as in original block. > > So is there a way to rename all the temporaries in a basic block or I > will have to do

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,

On Tue, Apr 9, 2013 at 12:47 PM, Dong Chen <jameschennerd at gmail.com> wrote: > 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" ? > >

On Fri, Mar 11, 2011 at 11:48 AM, Judison <judison at gmail.com> wrote: > I hope this is the right place to ask it, sorry if I'm wrong... It's the right place, though the IRC channel would have been good too. > My compiler is generating this code: > > (line numbers included) (Please ignore the extra br label %b0 and the whole > b0) Sorry, but the extra branches

Hi, I hope this is the right place to ask it, sorry if I'm wrong... My compiler is generating this code: (line numbers included) (Please ignore the extra br label %b0 and the whole b0) ... 54 define i32 @std_lang__rest() { 55 entry: 56 %ret = alloca i32 ; <i32*> int* 57 %0 = icmp eq i32 4, 5 ; <i1> boolean 58

Sorry, %3 instead of %4. 2011/9/14 Rafael Baldiati Parizi <parizi.computacao at gmail.com> > Hello, > I created a new block for execution to continue, but I got the case in > which a statement defined in a block is used in another, not dominate all > uses. > For example: > > entry: > %n_addr = alloca i32, align 4 > %retval = alloca i32 > %"alloca

Hello, I created a new block for execution to continue, but I got the case in which a statement defined in a block is used in another, not dominate all uses. For example: entry: %n_addr = alloca i32, align 4 %retval = alloca i32 %"alloca point" = bitcast i32 0 to i32 store i32 %n, i32* %n_addr %0 = call i32 (i8*, ...)* @printf(i8* noalias getelementptr inbounds ([20 x i8]*

Is there a way through the Value class to get the identifier for an unnamed temporary? Or alternatively, could someone point me to the code where temporaries are assigned sequential numbers as identifiers so I can better understand this issue? Thanks, Scott