diff options
Diffstat (limited to 'gcc/resource.c')
| -rw-r--r-- | gcc/resource.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/resource.c b/gcc/resource.c index 23f5e0e4ead..d84fabeee1d 100644 --- a/gcc/resource.c +++ b/gcc/resource.c @@ -422,6 +422,14 @@ find_dead_or_set_registers (target, res, jump_target, jump_count, set, needed) rtx this_jump_insn = insn; next = NEXT_INSN (insn); + + /* If this instruction can throw an exception, then we don't + know where we might end up next. That means that we have to + assume that whatever we have already marked as live really is + live. */ + if (can_throw (insn)) + break; + switch (GET_CODE (insn)) { case CODE_LABEL: |