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| author | Jeff Law <law@gcc.gnu.org> | 1997-06-12 09:45:32 -0600 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1997-06-12 09:45:32 -0600 |
| commit | f5546425e91646b6997ed7ceb397f84db9b26271 (patch) | |
| tree | 9f21656683ed2ccb00b9dc8478625b545fafe30e /gcc/reorg.c | |
| parent | e5ffb50c0db1c7bccb63c7af869dc2bae3686368 (diff) | |
| download | gcc-f5546425e91646b6997ed7ceb397f84db9b26271.tar.gz | |
reorg.c (emit_delay_sequence): Call set_new_first_and_last_insn after the new sequence insn has been spliced...
* reorg.c (emit_delay_sequence): Call set_new_first_and_last_insn
after the new sequence insn has been spliced into the insn chain.
From-SVN: r14229
Diffstat (limited to 'gcc/reorg.c')
| -rw-r--r-- | gcc/reorg.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/gcc/reorg.c b/gcc/reorg.c index 3a5a7e94460..5f24cfc200c 100644 --- a/gcc/reorg.c +++ b/gcc/reorg.c @@ -894,15 +894,22 @@ emit_delay_sequence (insn, list, length, avail) NEXT_INSN (seq_insn) = NEXT_INSN (insn); PREV_INSN (seq_insn) = PREV_INSN (insn); + if (insn != last) + PREV_INSN (NEXT_INSN (seq_insn)) = seq_insn; + + if (insn != first) + NEXT_INSN (PREV_INSN (seq_insn)) = seq_insn; + + /* Note the calls to set_new_first_and_last_insn must occur after + SEQ_INSN has been completely spliced into the insn stream. + + Otherwise CUR_INSN_UID will get set to an incorrect value because + set_new_first_and_last_insn will not find SEQ_INSN in the chain. */ if (insn == last) set_new_first_and_last_insn (first, seq_insn); - else - PREV_INSN (NEXT_INSN (seq_insn)) = seq_insn; if (insn == first) set_new_first_and_last_insn (seq_insn, last); - else - NEXT_INSN (PREV_INSN (seq_insn)) = seq_insn; /* Build our SEQUENCE and rebuild the insn chain. */ XVECEXP (seq, 0, 0) = delay_insn; |