[LLVMdev] Fw: Why llvm values can't start with %1?

[Samuel Crow]

Whoops!  Forgot to send it to the list!



----- Forwarded Message ----
> From: Samuel Crow <samuraileumas at yahoo.com>
> To: Yuri <yuri at tsoft.com>
> Sent: Wed, May 26, 2010 2:26:05 PM
> Subject: Re: [LLVMdev] Why llvm values can't start with %1?
> 
> Hi Yuri

If you want to, you can name the registers with %r1 or some other 
> string with a number after it.  My guess about the reason it's so strict 
> with the numbered SSA registers is that it automatically numbers unnamed 
> registers internally without registering a name in memory.  If you do give 
> it a name, it will take more memory but will be more flexible in the conventions 
> used to name the registers.

--Sam




----- Original 
> Message ----
> From: Yuri <
> href="mailto:yuri at tsoft.com">yuri at tsoft.com>
> To: LLVM Developers 
> Mailing List <
> href="mailto:llvmdev at cs.uiuc.edu">llvmdev at cs.uiuc.edu>
> Sent: Wed, 
> May 26, 2010 2:16:03 PM
> Subject: [LLVMdev] Why llvm values can't start 
> with %1?
> 
> After I manually modified .ll file deleting %0 I am 
> getting this error 
from 
> llvm-as:

lvm-as: my.ll:43:3: error: 
> instruction expected to be numbered 
> '%0'
  %1 = tail call 
> noalias i8* @malloc(i32 8) nounwind ; <i8*> 
> [#uses=1]
  
> ^

So now I have to also rename all other %<NUM> 
> variables? 
> Why llvm is so 
strict with naming? I think it should just accept 
> 
> whatever names are 
there as long as they make a valid .ll 
> 
> file.

Yuri
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