[Bug target/39942] Nonoptimal code - leaveq; xchg %ax,%ax; retq

[jakub at gcc dot gnu dot org]

------- Comment #50 from jakub at gcc dot gnu dot org  2009-05-20 22:09 -------
nopl   0x0(%rax,%rax,1) and nopw   0x0(%rax,%rax,1) aren't padding (though, it
has been added in this case for label alignment or function entry alignment,
not to avoid 4+ jumps in one 16byte page)?
Anyway, you want to look at both -S output and objdump -d of -c output, there
you'll see needed .p2align added.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39942