http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49611
Jeroen van Bemmel <jbemmel at zonnet dot nl> changed:
What |Removed |Added
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CC| |jbemmel at zonnet dot nl
--- Comment #4 from Jeroen van Bemmel <jbemmel at zonnet dot nl> 2012-06-28
16:06:18 UTC ---
Ideally, there would be some way to express that a given asm goto block depends
on the flags, to prevent GCC from reordering flags-changing instructions and
breaking the code.
As a compromise, GCC could simply assume by default that asm goto blocks depend
on the flags. Like Ryan, I believe that most people using asm goto would use it
for such a purpose, and any missed optimization opportunities are a small price
to pay for correct code.
