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Internal compiler error

Posted: Thu Jun 02, 2022 9:37 pm
by Dwedit
This is a minimal C program that triggers an "internal compiler error" if built with the -Os switch.

I'm building it with the command "arm-none-eabi-gcc test.c -Os"

The code: (Save as "test.c")

Code: Select all

int main()
		char *s=(char*)0x0203fc08;
		//advance past first null
		while (*s++ != 0);
		//advance past second null
		while (*s++ != 0);
	return 0;
And I get this output:

Code: Select all

during GIMPLE pass: ivopts
test.c: In function 'main':
test.c:1:5: internal compiler error: in build2, at
    1 | int main()
      |     ^~~~
libbacktrace could not find executable to open
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I also notice that if I instead declare the pointer as "volatile", the internal error disappears.

Also, the Wiki page for bug reports is currently not loading, it gives an SSL certificate error.