PATCH for middle-end/10336

[Jason Merrill]

My earlier patch assumed that there would always be some non-NOTE insn
preceding a dead block.  Apparently this is not always true.

Booted and tested i686-pc-linux-gnu, applied 3.2, 3.3 and trunk.  Test in
gcc.dg/Wunreachable-4.c.

2003-04-14  Jason Merrill  <jason@redhat.com>

	PR middle-end/10336, c++/10401
	* jump.c (never_reached_warning): Also stop looking if we reach the 
	beginning of the function.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: text/x-patch
Size: 757 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20030415/73e0b65f/attachment.bin>