Not sure if it is already known, but noticed that at least in the online
HTML documentation for all versions since 4.5 (where it was apparently
introduced), at
<http://gcc.gnu.org/onlinedocs/gcc-4.5.4/gcc/Extended-Asm.html> in the
paragraph
Speaking of labels, jumps from one asm to another are not supported.
The compiler's optimizers do not know about these jumps, and therefore
they cannot take account of them when deciding how to optimize. See
Extended asm with goto.
the link of "Extended asm with goto" is
<a href="Extended-asm-with-goto.html#Extended-asm-with-goto">
to a non-existing
<http://gcc.gnu.org/onlinedocs/gcc-4.5.4/gcc/Extended-asm-with-goto.html#Extended-asm-with-goto>
which gets redirected as
<meta http-equiv="refresh" content="0;
url=Extended-Asm.html#Extended%20asm%20with%20goto">
to a URL with non-matching spaces vs. hyphens in the fragment, so
doesn't make the browser jump to the
<http://gcc.gnu.org/onlinedocs/gcc-4.5.4/gcc/Extended-Asm.html#Extended-asm-with-goto>
anchor.
Stephan
