http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55467
Hans-Peter Nilsson <hp at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution| |INVALID
--- Comment #7 from Hans-Peter Nilsson <hp at gcc dot gnu.org> 2012-11-26
18:02:41 UTC ---
(In reply to comment #6)
> Without volatile the compiler is free to
> schedule the second asm before the first one (and does for e.g. -m32 -O2),
Oh, that's what's happening. Wicked.
> ... The "" -> NOP change is desirable
> in any way, as the test wants to stop on the inline asm, if the inline asm is
> empty, it stops on the following insn rather than on the inline asm.
Yes. That break-on-empty-asm-line bothered me a little, but I shrugged it off,
thinking the author probably intended what was there. ;) Nice with the nop.h.
Ok, re-closing this.
