marcmerlin
Well-known member
Howdy,
Fastest + Pure Code works
Fastest with LTO works
Fastest + Pure Code with LTO does not work
I'm not looking for a fix, teenyduino does warn that those compile options can bring bugs, I'm just posting it here in case it's useful
Same code builds fine on ESP32 and ESP8266. Code looks simple enough:
Full code:
https://github.com/marcmerlin/SmartMatrix_GFX/blob/master/examples/Aurora/PatternFlock.h#L69
teensyduino has arm-none-eabi-gcc-5.4.1
Other reports:
https://bugs.launchpad.net/gcc-arm-embedded/+bug/1530664 gcc 5.2.1
https://bugs.launchpad.net/gcc-arm-embedded/+bug/1530165 gcc 4.9 alledgedly fixed with 5-2015q4, but my gcc is newer
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=855248 is gcc 5.4.1+svn241155-1 looks like the same
Fastest + Pure Code works
Fastest with LTO works
Fastest + Pure Code with LTO does not work
I'm not looking for a fix, teenyduino does warn that those compile options can bring bugs, I'm just posting it here in case it's useful
Code:
PatternFlock.h:69: error: insn does not satisfy its constraints:
}
^
(insn 942 81 303 2 (set (reg:SF 27 s11 [orig:443 D.5363.mass ] [443])
(mem/c:SF (plus:SI (reg/f:SI 13 sp)
(const_int 48 [0x30])) [3 D.5363.mass+0 S4 A32])) 621 {*thumb2_movsf_vfp}
(nil))
/tmp/arduino_build_668641/sketch/PatternFlock.h:69:5: internal compiler error: in extract_constrain_insn, at recog.c:2246
Please submit a full bug report,
with preprocessed source if appropriate.
Same code builds fine on ESP32 and ESP8266. Code looks simple enough:
Code:
void start() {
for (int i = 0; i < boidCount; i++) {
boids[i] = Boid(15, 15);
boids[i].maxspeed = 0.380;
boids[i].maxforce = 0.015;
}
predatorPresent = random(0, 2) >= 1;
if (predatorPresent) {
predator = Boid(31, 31);
predatorPresent = true;
predator.maxspeed = 0.385;
predator.maxforce = 0.020;
predator.neighbordist = 16.0;
predator.desiredseparation = 0.0;
}
}
Full code:
https://github.com/marcmerlin/SmartMatrix_GFX/blob/master/examples/Aurora/PatternFlock.h#L69
teensyduino has arm-none-eabi-gcc-5.4.1
Other reports:
https://bugs.launchpad.net/gcc-arm-embedded/+bug/1530664 gcc 5.2.1
https://bugs.launchpad.net/gcc-arm-embedded/+bug/1530165 gcc 4.9 alledgedly fixed with 5-2015q4, but my gcc is newer
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=855248 is gcc 5.4.1+svn241155-1 looks like the same