Re: error: missing terminating " character while modifying md file

[David Daney <ddaney at avtrex dot com>]

Omar wrote:
>  Ok, so after weeks of reading and looking at multiple .md files, I
> felt ready to give it a try and decided to create some define_split's
> on my own.
>  I created a define_split RTL pattern which included this condition:
>   "reload_completed
>   && GET_CODE (operands[1]) == MEM
>   && GET_CODE (XEXP (operands[1], 0)) == PLUS"
>
> When I try to compile it I get:
> ../../gcc/config/c816/c816.md:36  error: missing terminating " character
> ../../gcc/config/c816/c816.md:37: error: stray '\' in program
> ...
>
> If instead, I place the condition all in a single line:
>   "reload_completed && GET_CODE (operands[1]) == MEM && GET_CODE (XEXP
> (operands[1], 0)) == PLUS"
> then gcc is happy.
>
> I have been searching the web for hours now, but I have not been able
> to find what is causing this.
> Does anyone have a suggestion on what might be causing this issue?

It has to be a valid C string.  You get that error for the same reason 
that you get it from this program:

----------->8---------
int f(const char *p);


int j(void)
{
    return f("hello
world");

}
----------->8---------

If the condition is complex, create a macro for it in your target.h file 
and use the macro in the .md file.

This is done in mips.h (see GENERATE_LL_SC) as well as I imagine other 
places if you want an example.

David Daney