[LLVMdev] PIC16 question

Sanjiv Gupta sanjiv.gupta at microchip.com
Sun Sep 13 19:53:57 PDT 2009

Chris Lattner wrote:
> In my ongoing work on refactoring the asmprinters, I've found that  
> PIC16 doesn't put ':' after labels in some cases.  Specifically, it  
> looks like basic block labels are emitted without a ':':
> 	movwf @__floatunsidf.frame. + 2
> 	movlp .BB1_2
> 	goto .BB1_2
> .BB1_2                                                      ; %bb7
> 	movlw 0
> 	banksel @__floatunsidf.frame.
> but that functions and global variables are.  Does lack of a colon  
> mean that the label is private to the file? Is a colon on the basic  
> block harmful

>  (IOW, can I just emit basic block labels with a colon  
> even though they aren't currently)?
A ':' does not make any difference to pic16 labels.
They are optional.
- Sanjiv

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