error: unable to find a register to spill in class 'POINTER_REGS'

Using Arduino IDE 1.x
1

I am sorry, i 've now realised that i am at the wrong place i had to post it on "Avrdude, stk500, Bootloader issues"
I am sorry, i 've now realised that i am at the wrong place i had to post it on "Avrdude, stk500, Bootloader issues"
I am sorry, i 've now realised that i am at the wrong place i had to post it on "Avrdude, stk500, Bootloader issues"

Hello people,

I am having a problem trying to upload a sketch on an Attiny. While i am able to upload it and run it perfectly on an Attiny85 using the Mellis's core i am having trouble uploading the sketch using Konde's core or (on a digispark) by using digistump's core.

You might thinking "why do you want to try and use a diferent core, when you can do your job just by using the first one?" and the answer is because i need to compile the code on an attiny167 or on a digispark Pro that its on supported by Mellis's core.

first of all i had two errors, one was "fixed" by just adding -fpermissive to platforms.txt the other one that i just can find a way (and i have tried too many things) is this:

C:\Program Files (x86)\Arduino\libraries\{Library}\{file}.cpp:89:1: error: unable to find a register to spill in class 'POINTER_REGS'

 }

 ^

C:\Program Files (x86)\Arduino\libraries\{Library}\{file}.cpp:89:1: error: this is the insn:

(insn 53 52 55 9 (set (reg:SF 56 [ D.4251 ])

        (mem:SF (post_inc:HI (reg:HI 70 [ ivtmp.95 ])) [9 MEM[base: _87, offset: 0B]+0 S4 A8])) C:\Program Files (x86)\Arduino\libraries\{Library}\{file}.cpp:78 99 {*movsf}

     (expr_list:REG_INC (reg:HI 70 [ ivtmp.95 ])

        (nil)))

C:\Program Files (x86)\Arduino\libraries\{Library}\{file}.cpp:89: confused by earlier errors, bailing out

I 've tried:

  • Re-installing Arduino
  • Deleting Arduino15 folder and 1
  • Changing platform.txt (even if i have no idea too many things about it..)
  • +many other things..

does anyone have any idea, at least how to work around the proplem ?

Thanks in advance,
George

2

I believe this is caused by a bug in the compiler:

Supposedly, the bug has been fixed in GCC 7. Although the current stable release of Arduino AVR Boards (which those ATtiny cores share compiler with) uses avr-gcc 5.4.0, the plan is to update to 7.3.0 soon and there is already a beta test version of Arduino AVR Boards available that uses it. Although the beta is mostly intended to be used for testing, I've been using it for 6+ months now exclusively without having a single problem, so I feel it's good enough for normal use. You can install it like this:

  • File > Preferences
  • Click the button on the right side of the "Additional Boards Manager URLs" field.
  • In the dialog that opens, add a new line to the input field and enter the following URL: http://downloads.arduino.cc/packages/package_avr_7.3.0_staging_index.json
  • Click the "OK" button.
  • Click the "OK" button.
  • Tools > Board > Boards Manager
  • Wait for the downloads to finish
  • Click on "Arduino AVR Boards by Arduino".
  • Click the "Update" button.
  • Wait for the update to finish. You should now have Arduino AVR Boards 1.6.220 installed.'
  • Click the "Close" button.
  • Cross your fingers for luck and try compiling your sketch again.
3

Wish you the best day! you 've made my day! Thanks you very much! the error has dissapeared!

4

You're welcome. I'm glad to hear it's working now. Enjoy!
Per