diff options
Diffstat (limited to 'gcc/cfglayout.c')
| -rw-r--r-- | gcc/cfglayout.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/gcc/cfglayout.c b/gcc/cfglayout.c index 9d23b16..7ba289f 100644 --- a/gcc/cfglayout.c +++ b/gcc/cfglayout.c @@ -1,5 +1,5 @@ /* Basic block reordering routines for the GNU compiler. - Copyright (C) 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009 + Copyright (C) 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. This file is part of GCC. @@ -861,8 +861,11 @@ fixup_reorder_chain (void) } else if (extract_asm_operands (PATTERN (bb_end_insn)) != NULL) { - /* If the old fallthru is still next, nothing to do. */ - if (bb->aux == e_fall->dest + /* If the old fallthru is still next or if + asm goto doesn't have a fallthru (e.g. when followed by + __builtin_unreachable ()), nothing to do. */ + if (! e_fall + || bb->aux == e_fall->dest || e_fall->dest == EXIT_BLOCK_PTR) continue; |