diff options
Diffstat (limited to 'gcc/sched-rgn.c')
| -rw-r--r-- | gcc/sched-rgn.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/gcc/sched-rgn.c b/gcc/sched-rgn.c index e5a241b6327..20c8d72f77b 100644 --- a/gcc/sched-rgn.c +++ b/gcc/sched-rgn.c @@ -2277,10 +2277,10 @@ add_branch_dependences (head, tail) { rtx insn, last; - /* For all branches, calls, uses, clobbers, and cc0 setters, force them - to remain in order at the end of the block by adding dependencies and - giving the last a high priority. There may be notes present, and - prev_head may also be a note. + /* For all branches, calls, uses, clobbers, cc0 setters, and instructions + that can throw exceptions, force them to remain in order at the end of + the block by adding dependencies and giving the last a high priority. + There may be notes present, and prev_head may also be a note. Branches must obviously remain at the end. Calls should remain at the end since moving them results in worse register allocation. Uses remain @@ -2293,6 +2293,7 @@ add_branch_dependences (head, tail) || (GET_CODE (insn) == INSN && (GET_CODE (PATTERN (insn)) == USE || GET_CODE (PATTERN (insn)) == CLOBBER + || can_throw_internal (insn) #ifdef HAVE_cc0 || sets_cc0_p (PATTERN (insn)) #endif |