[Bug ld/12494] Relaxation leads to wrong code optimization (computed goto)

[avr at gjlay dot de]

http://sourceware.org/bugzilla/show_bug.cgi?id=12494

--- Comment #5 from Georg-Johann Lay <avr at gjlay dot de> 2011-06-14 19:50:27 
UTC ---
(In reply to comment #4)

It's definitely abinutils bug.

Rewriting and tweaking C-source will not fix a binutils bug.

The simplistic source just shows that avr-gcc actually can generate code that
binutils linker relaxation will shred. For sure there are more realistic
examles out in the world, maybe even assembler or auto-generated by some tool.

BTW, avr-gcc may generate a function wil several RETs if it detects that an
expilogue is "simple". That's preferred over jumping around.

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