cfgrtl.c (try_redirect_by_replacing_jump): Allow redirect_jump to fail if target is EXIT_BLOCK_PTR, die otherwise.
* cfgrtl.c (try_redirect_by_replacing_jump): Allow redirect_jump
to fail if target is EXIT_BLOCK_PTR, die otherwise.
(redirect_edge_and_branch): Likewise.
* cfgcleanup.c (try_forward_edge): Don't force jump redirecting
if target is EXIT_BLOCK_PTR.
* gcc.c-torture/compile/20011229-2.c: New test.
From-SVN: r48399
